/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 produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:36:01,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:36:01,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:36:01,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:36:01,497 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:36:01,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:36:01,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:36:01,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:36:01,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:36:01,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:36:01,516 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:36:01,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:36:01,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:36:01,523 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:36:01,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:36:01,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:36:01,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:36:01,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:36:01,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:36:01,542 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:36:01,544 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:36:01,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:36:01,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:36:01,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:36:01,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:36:01,553 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:36:01,553 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:36:01,556 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:36:01,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:36:01,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:36:01,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:36:01,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:36:01,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:36:01,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:36:01,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:36:01,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:36:01,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:36:01,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:36:01,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:36:01,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:36:01,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:36:01,569 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 [2020-09-21 12:36:01,619 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:36:01,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:36:01,622 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:36:01,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:36:01,623 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:36:01,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:36:01,624 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:36:01,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:36:01,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:36:01,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:36:01,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:36:01,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:36:01,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:36:01,626 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:36:01,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:36:01,626 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:36:01,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:36:01,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:36:01,627 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:36:01,627 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:36:01,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:36:01,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:36:01,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:36:01,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:36:01,628 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:36:01,629 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:36:01,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:36:01,629 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:36:01,629 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:36:01,629 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 -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:36:02,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:36:02,130 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:36:02,136 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:36:02,138 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:36:02,139 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:36:02,141 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2020-09-21 12:36:02,222 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2955b2bb7/59bb39ab07a04abc8d2fec96f30154f3/FLAG34054c5b4 [2020-09-21 12:36:02,834 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:36:02,835 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2020-09-21 12:36:02,853 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2955b2bb7/59bb39ab07a04abc8d2fec96f30154f3/FLAG34054c5b4 [2020-09-21 12:36:03,112 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2955b2bb7/59bb39ab07a04abc8d2fec96f30154f3 [2020-09-21 12:36:03,126 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:36:03,132 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:36:03,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:36:03,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:36:03,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:36:03,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:36:03" (1/1) ... [2020-09-21 12:36:03,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3155a6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:36:03, skipping insertion in model container [2020-09-21 12:36:03,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:36:03" (1/1) ... [2020-09-21 12:36:03,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:36:03,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:36:03,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:36:03,473 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:36:03,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:36:03,539 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:36:03,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:36:03 WrapperNode [2020-09-21 12:36:03,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:36:03,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:36:03,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:36:03,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:36:03,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:36:03" (1/1) ... [2020-09-21 12:36:03,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:36:03" (1/1) ... [2020-09-21 12:36:03,653 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:36:03" (1/1) ... [2020-09-21 12:36:03,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:36:03" (1/1) ... [2020-09-21 12:36:03,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:36:03" (1/1) ... [2020-09-21 12:36:03,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:36:03" (1/1) ... [2020-09-21 12:36:03,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:36:03" (1/1) ... [2020-09-21 12:36:03,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:36:03,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:36:03,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:36:03,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:36:03,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:36:03" (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 [2020-09-21 12:36:03,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:36:03,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:36:03,759 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-21 12:36:03,760 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:36:03,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:36:03,760 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-21 12:36:03,760 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-21 12:36:03,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-21 12:36:03,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:36:03,761 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:36:03,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:36:03,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:36:04,206 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:36:04,207 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-21 12:36:04,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:36:04 BoogieIcfgContainer [2020-09-21 12:36:04,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:36:04,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:36:04,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:36:04,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:36:04,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:36:03" (1/3) ... [2020-09-21 12:36:04,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e7be621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:36:04, skipping insertion in model container [2020-09-21 12:36:04,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:36:03" (2/3) ... [2020-09-21 12:36:04,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e7be621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:36:04, skipping insertion in model container [2020-09-21 12:36:04,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:36:04" (3/3) ... [2020-09-21 12:36:04,224 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.v+lhb-reducer.c [2020-09-21 12:36:04,233 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:36:04,243 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-09-21 12:36:04,264 INFO L251 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-09-21 12:36:04,297 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:36:04,297 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:36:04,297 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:36:04,297 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:36:04,298 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:36:04,298 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:36:04,298 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:36:04,298 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:36:04,328 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-09-21 12:36:04,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-21 12:36:04,337 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:04,338 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:36:04,339 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:04,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:04,348 INFO L82 PathProgramCache]: Analyzing trace with hash -452302183, now seen corresponding path program 1 times [2020-09-21 12:36:04,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:04,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [284442079] [2020-09-21 12:36:04,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:04,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:04,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:04,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:36:04,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:04,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-09-21 12:36:04,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:04,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:36:04,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:36:04,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:36:04,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-21 12:36:04,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:04,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:04,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:04,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:04,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:04,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:04,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:36:04,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:04,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:04,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:04,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:04,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:36:04,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:04,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [284442079] [2020-09-21 12:36:04,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:04,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:36:04,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248874667] [2020-09-21 12:36:04,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:36:04,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:04,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:36:04,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:36:04,995 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 5 states. [2020-09-21 12:36:05,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:05,338 INFO L93 Difference]: Finished difference Result 135 states and 178 transitions. [2020-09-21 12:36:05,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 12:36:05,340 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-21 12:36:05,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:05,357 INFO L225 Difference]: With dead ends: 135 [2020-09-21 12:36:05,357 INFO L226 Difference]: Without dead ends: 111 [2020-09-21 12:36:05,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:36:05,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-09-21 12:36:05,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 73. [2020-09-21 12:36:05,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-21 12:36:05,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions. [2020-09-21 12:36:05,444 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 12 [2020-09-21 12:36:05,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:05,446 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 77 transitions. [2020-09-21 12:36:05,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:36:05,446 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2020-09-21 12:36:05,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-21 12:36:05,447 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:05,447 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:36:05,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:36:05,448 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:05,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:05,449 INFO L82 PathProgramCache]: Analyzing trace with hash -449131431, now seen corresponding path program 1 times [2020-09-21 12:36:05,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:05,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [44473262] [2020-09-21 12:36:05,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:05,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:05,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:05,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:05,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:36:05,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:05,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-21 12:36:05,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:05,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:36:05,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:36:05,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:36:05,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:05,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:05,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:05,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:05,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:05,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:05,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:05,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:36:05,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:05,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:05,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:05,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:05,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:36:05,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:05,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [44473262] [2020-09-21 12:36:05,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:05,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:36:05,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044750495] [2020-09-21 12:36:05,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:36:05,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:05,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:36:05,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:36:05,679 INFO L87 Difference]: Start difference. First operand 73 states and 77 transitions. Second operand 5 states. [2020-09-21 12:36:05,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:05,982 INFO L93 Difference]: Finished difference Result 111 states and 117 transitions. [2020-09-21 12:36:05,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 12:36:05,983 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-21 12:36:05,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:05,985 INFO L225 Difference]: With dead ends: 111 [2020-09-21 12:36:05,985 INFO L226 Difference]: Without dead ends: 109 [2020-09-21 12:36:05,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:36:05,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-21 12:36:05,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 71. [2020-09-21 12:36:05,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-21 12:36:05,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2020-09-21 12:36:05,999 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 12 [2020-09-21 12:36:05,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:06,000 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2020-09-21 12:36:06,000 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:36:06,000 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2020-09-21 12:36:06,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-21 12:36:06,001 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:06,001 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:36:06,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:36:06,002 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:06,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:06,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1218997650, now seen corresponding path program 1 times [2020-09-21 12:36:06,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:06,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [159103384] [2020-09-21 12:36:06,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:06,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:06,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:06,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:06,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:06,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:06,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 12:36:06,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:36:06,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 405 [2020-09-21 12:36:06,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:06,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:36:06,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:36:06,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:36:06,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 12:36:06,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:06,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:06,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:06,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:06,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:06,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:06,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:36:06,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:06,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:06,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:06,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:06,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:06,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:06,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [159103384] [2020-09-21 12:36:06,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:06,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:36:06,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898772171] [2020-09-21 12:36:06,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:36:06,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:06,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:36:06,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:36:06,475 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand 5 states. [2020-09-21 12:36:06,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:06,717 INFO L93 Difference]: Finished difference Result 71 states and 75 transitions. [2020-09-21 12:36:06,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 12:36:06,718 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-21 12:36:06,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:06,719 INFO L225 Difference]: With dead ends: 71 [2020-09-21 12:36:06,719 INFO L226 Difference]: Without dead ends: 69 [2020-09-21 12:36:06,720 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:36:06,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-09-21 12:36:06,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-09-21 12:36:06,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-09-21 12:36:06,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2020-09-21 12:36:06,730 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 15 [2020-09-21 12:36:06,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:06,730 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2020-09-21 12:36:06,730 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:36:06,731 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2020-09-21 12:36:06,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-21 12:36:06,732 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:06,732 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:36:06,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:36:06,733 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:06,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:06,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1248304044, now seen corresponding path program 1 times [2020-09-21 12:36:06,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:06,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1204727359] [2020-09-21 12:36:06,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:06,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:06,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:06,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:06,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:07,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:07,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 12:36:07,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:36:07,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-09-21 12:36:07,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:07,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:36:07,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:36:07,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:36:07,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:07,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:07,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:07,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:07,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:07,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:07,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:36:07,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:07,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:07,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:07,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:07,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:07,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:07,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1204727359] [2020-09-21 12:36:07,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:07,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:36:07,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938569100] [2020-09-21 12:36:07,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:36:07,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:07,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:36:07,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:36:07,079 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand 5 states. [2020-09-21 12:36:07,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:07,248 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2020-09-21 12:36:07,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 12:36:07,249 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-21 12:36:07,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:07,250 INFO L225 Difference]: With dead ends: 69 [2020-09-21 12:36:07,250 INFO L226 Difference]: Without dead ends: 67 [2020-09-21 12:36:07,251 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:36:07,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-09-21 12:36:07,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2020-09-21 12:36:07,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-09-21 12:36:07,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2020-09-21 12:36:07,259 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 15 [2020-09-21 12:36:07,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:07,259 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2020-09-21 12:36:07,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:36:07,259 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2020-09-21 12:36:07,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-21 12:36:07,260 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:07,261 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:36:07,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:36:07,261 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:07,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:07,262 INFO L82 PathProgramCache]: Analyzing trace with hash 865781601, now seen corresponding path program 1 times [2020-09-21 12:36:07,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:07,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1156742607] [2020-09-21 12:36:07,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:07,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:07,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:07,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:07,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:07,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:07,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 12:36:07,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:36:07,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-09-21 12:36:07,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:07,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:36:07,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-21 12:36:07,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:36:07,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:07,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:07,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:07,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:07,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:07,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:07,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:07,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:36:07,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:07,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:07,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:07,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:07,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:07,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:07,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1156742607] [2020-09-21 12:36:07,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:07,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:36:07,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070086202] [2020-09-21 12:36:07,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:36:07,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:07,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:36:07,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:36:07,509 INFO L87 Difference]: Start difference. First operand 67 states and 71 transitions. Second operand 5 states. [2020-09-21 12:36:07,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:07,673 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2020-09-21 12:36:07,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 12:36:07,674 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-21 12:36:07,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:07,675 INFO L225 Difference]: With dead ends: 69 [2020-09-21 12:36:07,676 INFO L226 Difference]: Without dead ends: 65 [2020-09-21 12:36:07,676 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:36:07,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-09-21 12:36:07,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2020-09-21 12:36:07,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-21 12:36:07,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2020-09-21 12:36:07,684 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 16 [2020-09-21 12:36:07,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:07,684 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2020-09-21 12:36:07,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:36:07,684 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2020-09-21 12:36:07,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-21 12:36:07,685 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:07,686 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:36:07,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:36:07,686 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:07,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:07,687 INFO L82 PathProgramCache]: Analyzing trace with hash -42274612, now seen corresponding path program 1 times [2020-09-21 12:36:07,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:07,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [720402475] [2020-09-21 12:36:07,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:07,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:07,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:07,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:07,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 12:36:07,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:36:07,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-09-21 12:36:07,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:07,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:36:07,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:36:07,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 12:36:07,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:07,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:07,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:07,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:07,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:07,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:07,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:36:07,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:07,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:07,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:07,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:07,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:07,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:07,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [720402475] [2020-09-21 12:36:07,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:07,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 12:36:07,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970305838] [2020-09-21 12:36:07,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:36:07,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:07,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:36:07,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:36:07,961 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand 6 states. [2020-09-21 12:36:08,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:08,222 INFO L93 Difference]: Finished difference Result 108 states and 115 transitions. [2020-09-21 12:36:08,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:36:08,223 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-09-21 12:36:08,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:08,224 INFO L225 Difference]: With dead ends: 108 [2020-09-21 12:36:08,224 INFO L226 Difference]: Without dead ends: 106 [2020-09-21 12:36:08,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:36:08,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-09-21 12:36:08,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 61. [2020-09-21 12:36:08,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-21 12:36:08,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2020-09-21 12:36:08,241 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 16 [2020-09-21 12:36:08,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:08,241 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2020-09-21 12:36:08,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:36:08,241 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2020-09-21 12:36:08,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-21 12:36:08,245 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:08,245 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:36:08,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:36:08,246 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:08,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:08,246 INFO L82 PathProgramCache]: Analyzing trace with hash -42288514, now seen corresponding path program 1 times [2020-09-21 12:36:08,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:08,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1688720546] [2020-09-21 12:36:08,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:08,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:08,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:08,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:08,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 12:36:08,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:36:08,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-21 12:36:08,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:08,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:36:08,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:36:08,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 12:36:08,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:08,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:08,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:08,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:08,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:08,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:08,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:08,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:36:08,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:08,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:08,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:08,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:08,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:08,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:08,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1688720546] [2020-09-21 12:36:08,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:08,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 12:36:08,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103926273] [2020-09-21 12:36:08,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:36:08,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:08,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:36:08,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:36:08,559 INFO L87 Difference]: Start difference. First operand 61 states and 65 transitions. Second operand 6 states. [2020-09-21 12:36:08,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:08,770 INFO L93 Difference]: Finished difference Result 93 states and 99 transitions. [2020-09-21 12:36:08,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:36:08,770 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-09-21 12:36:08,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:08,771 INFO L225 Difference]: With dead ends: 93 [2020-09-21 12:36:08,772 INFO L226 Difference]: Without dead ends: 91 [2020-09-21 12:36:08,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:36:08,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-21 12:36:08,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 59. [2020-09-21 12:36:08,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-21 12:36:08,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2020-09-21 12:36:08,786 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 16 [2020-09-21 12:36:08,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:08,786 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2020-09-21 12:36:08,786 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:36:08,786 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2020-09-21 12:36:08,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-21 12:36:08,790 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:08,791 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:36:08,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 12:36:08,792 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:08,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:08,792 INFO L82 PathProgramCache]: Analyzing trace with hash -42716511, now seen corresponding path program 1 times [2020-09-21 12:36:08,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:08,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1479777776] [2020-09-21 12:36:08,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:08,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:08,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:08,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:08,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:09,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:09,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 12:36:09,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:36:09,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-09-21 12:36:09,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:09,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:36:09,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-21 12:36:09,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:36:09,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:09,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:09,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:09,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:09,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:09,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:09,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:36:09,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:09,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:09,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:09,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:09,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:09,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:09,048 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1479777776] [2020-09-21 12:36:09,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:09,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:36:09,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53083035] [2020-09-21 12:36:09,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:36:09,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:09,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:36:09,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:36:09,067 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand 5 states. [2020-09-21 12:36:09,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:09,193 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2020-09-21 12:36:09,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 12:36:09,193 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-21 12:36:09,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:09,195 INFO L225 Difference]: With dead ends: 61 [2020-09-21 12:36:09,196 INFO L226 Difference]: Without dead ends: 57 [2020-09-21 12:36:09,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:36:09,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-09-21 12:36:09,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2020-09-21 12:36:09,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-21 12:36:09,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2020-09-21 12:36:09,216 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 16 [2020-09-21 12:36:09,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:09,216 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2020-09-21 12:36:09,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:36:09,217 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2020-09-21 12:36:09,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-21 12:36:09,218 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:09,218 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:36:09,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 12:36:09,218 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:09,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:09,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1083648192, now seen corresponding path program 1 times [2020-09-21 12:36:09,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:09,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1474734399] [2020-09-21 12:36:09,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:09,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:09,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:09,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:09,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 12:36:09,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:36:09,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-09-21 12:36:09,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:09,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:36:09,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:36:09,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 12:36:09,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:36:09,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:09,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:09,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:09,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:09,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:09,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:09,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:36:09,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:09,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:09,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:09,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:09,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:36:09,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:09,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1474734399] [2020-09-21 12:36:09,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:09,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 12:36:09,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977880767] [2020-09-21 12:36:09,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:36:09,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:09,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:36:09,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:36:09,640 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand 6 states. [2020-09-21 12:36:09,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:09,833 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2020-09-21 12:36:09,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:36:09,834 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-09-21 12:36:09,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:09,835 INFO L225 Difference]: With dead ends: 74 [2020-09-21 12:36:09,835 INFO L226 Difference]: Without dead ends: 72 [2020-09-21 12:36:09,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:36:09,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-21 12:36:09,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 53. [2020-09-21 12:36:09,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-21 12:36:09,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2020-09-21 12:36:09,841 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 17 [2020-09-21 12:36:09,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:09,842 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2020-09-21 12:36:09,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:36:09,842 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2020-09-21 12:36:09,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-21 12:36:09,843 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:09,843 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:36:09,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 12:36:09,843 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:09,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:09,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1085187392, now seen corresponding path program 1 times [2020-09-21 12:36:09,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:09,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [545960379] [2020-09-21 12:36:09,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:09,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:09,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:09,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:10,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:10,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 12:36:10,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:36:10,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-21 12:36:10,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:10,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:36:10,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:36:10,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 12:36:10,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:10,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:10,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:10,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:10,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:10,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:10,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:36:10,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:10,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:10,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:10,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:10,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:10,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:10,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [545960379] [2020-09-21 12:36:10,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:10,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 12:36:10,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79905748] [2020-09-21 12:36:10,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:36:10,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:10,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:36:10,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:36:10,151 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand 6 states. [2020-09-21 12:36:10,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:10,289 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2020-09-21 12:36:10,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:36:10,289 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-09-21 12:36:10,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:10,290 INFO L225 Difference]: With dead ends: 55 [2020-09-21 12:36:10,291 INFO L226 Difference]: Without dead ends: 53 [2020-09-21 12:36:10,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:36:10,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-09-21 12:36:10,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2020-09-21 12:36:10,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-21 12:36:10,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2020-09-21 12:36:10,296 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 17 [2020-09-21 12:36:10,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:10,296 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2020-09-21 12:36:10,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:36:10,296 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2020-09-21 12:36:10,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-21 12:36:10,297 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:10,297 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:36:10,297 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 12:36:10,298 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:10,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:10,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1310509752, now seen corresponding path program 1 times [2020-09-21 12:36:10,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:10,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [789562253] [2020-09-21 12:36:10,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:10,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:10,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:10,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:10,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 12:36:10,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:36:10,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-09-21 12:36:10,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:10,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:36:10,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:36:10,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 12:36:10,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:10,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:10,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:10,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:10,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:10,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:10,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:36:10,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:10,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:10,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:10,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:10,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:10,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:10,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [789562253] [2020-09-21 12:36:10,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:10,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 12:36:10,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005014912] [2020-09-21 12:36:10,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:36:10,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:10,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:36:10,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:36:10,622 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand 6 states. [2020-09-21 12:36:10,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:10,834 INFO L93 Difference]: Finished difference Result 86 states and 93 transitions. [2020-09-21 12:36:10,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:36:10,835 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-09-21 12:36:10,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:10,836 INFO L225 Difference]: With dead ends: 86 [2020-09-21 12:36:10,836 INFO L226 Difference]: Without dead ends: 84 [2020-09-21 12:36:10,837 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:36:10,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-09-21 12:36:10,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 49. [2020-09-21 12:36:10,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-09-21 12:36:10,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2020-09-21 12:36:10,841 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 17 [2020-09-21 12:36:10,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:10,842 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2020-09-21 12:36:10,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:36:10,842 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2020-09-21 12:36:10,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-21 12:36:10,843 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:10,843 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:36:10,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 12:36:10,843 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:10,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:10,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1310940728, now seen corresponding path program 1 times [2020-09-21 12:36:10,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:10,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1642212858] [2020-09-21 12:36:10,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:10,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:10,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:11,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:11,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 12:36:11,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:36:11,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-09-21 12:36:11,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:11,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:36:11,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:36:11,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 12:36:11,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:11,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:11,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:11,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:11,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:11,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:11,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:36:11,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:11,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:11,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:11,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:11,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:11,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:11,146 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1642212858] [2020-09-21 12:36:11,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:11,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 12:36:11,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454697281] [2020-09-21 12:36:11,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:36:11,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:11,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:36:11,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:36:11,148 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 6 states. [2020-09-21 12:36:11,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:11,374 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2020-09-21 12:36:11,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:36:11,374 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-09-21 12:36:11,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:11,375 INFO L225 Difference]: With dead ends: 76 [2020-09-21 12:36:11,375 INFO L226 Difference]: Without dead ends: 74 [2020-09-21 12:36:11,376 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:36:11,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-21 12:36:11,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 47. [2020-09-21 12:36:11,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-09-21 12:36:11,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2020-09-21 12:36:11,381 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 17 [2020-09-21 12:36:11,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:11,382 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2020-09-21 12:36:11,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:36:11,382 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2020-09-21 12:36:11,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-21 12:36:11,383 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:11,383 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:36:11,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 12:36:11,383 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:11,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:11,384 INFO L82 PathProgramCache]: Analyzing trace with hash -765275888, now seen corresponding path program 1 times [2020-09-21 12:36:11,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:11,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [646017376] [2020-09-21 12:36:11,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:11,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:11,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:11,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:11,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:11,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-21 12:36:11,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:36:11,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-09-21 12:36:11,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:11,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:36:11,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:36:11,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:36:11,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:11,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:11,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:11,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:11,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:11,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:11,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:11,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:36:11,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:11,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:11,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:11,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:11,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:11,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:11,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [646017376] [2020-09-21 12:36:11,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:11,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:36:11,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7083707] [2020-09-21 12:36:11,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:36:11,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:11,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:36:11,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:36:11,703 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 5 states. [2020-09-21 12:36:11,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:11,880 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2020-09-21 12:36:11,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 12:36:11,881 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-21 12:36:11,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:11,882 INFO L225 Difference]: With dead ends: 67 [2020-09-21 12:36:11,882 INFO L226 Difference]: Without dead ends: 65 [2020-09-21 12:36:11,883 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:36:11,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-09-21 12:36:11,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 45. [2020-09-21 12:36:11,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-21 12:36:11,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2020-09-21 12:36:11,887 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 18 [2020-09-21 12:36:11,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:11,887 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2020-09-21 12:36:11,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:36:11,888 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2020-09-21 12:36:11,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-21 12:36:11,888 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:11,889 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:36:11,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-21 12:36:11,889 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:11,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:11,889 INFO L82 PathProgramCache]: Analyzing trace with hash -766641308, now seen corresponding path program 1 times [2020-09-21 12:36:11,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:11,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1108053461] [2020-09-21 12:36:11,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:11,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:11,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:12,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:12,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-21 12:36:12,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:36:12,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-09-21 12:36:12,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:12,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:36:12,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:36:12,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:36:12,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:12,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:12,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:12,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:12,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:12,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:12,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:12,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:36:12,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:12,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:12,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:12,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:12,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:12,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:12,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1108053461] [2020-09-21 12:36:12,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:12,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 12:36:12,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477625955] [2020-09-21 12:36:12,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:36:12,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:12,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:36:12,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:36:12,250 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 7 states. [2020-09-21 12:36:12,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:12,445 INFO L93 Difference]: Finished difference Result 86 states and 95 transitions. [2020-09-21 12:36:12,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:36:12,446 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-09-21 12:36:12,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:12,448 INFO L225 Difference]: With dead ends: 86 [2020-09-21 12:36:12,449 INFO L226 Difference]: Without dead ends: 84 [2020-09-21 12:36:12,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:36:12,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-09-21 12:36:12,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 51. [2020-09-21 12:36:12,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-21 12:36:12,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 57 transitions. [2020-09-21 12:36:12,455 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 57 transitions. Word has length 18 [2020-09-21 12:36:12,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:12,456 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 57 transitions. [2020-09-21 12:36:12,456 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:36:12,456 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2020-09-21 12:36:12,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-21 12:36:12,457 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:12,457 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:36:12,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-21 12:36:12,457 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:12,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:12,458 INFO L82 PathProgramCache]: Analyzing trace with hash -718926058, now seen corresponding path program 1 times [2020-09-21 12:36:12,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:12,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [245739801] [2020-09-21 12:36:12,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:12,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:12,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:12,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:12,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:12,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-21 12:36:12,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:36:12,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-09-21 12:36:12,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:12,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:36:12,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:36:12,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:36:12,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:12,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:12,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:12,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:12,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:12,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:12,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:12,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:36:12,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:12,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:12,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:12,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:12,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:12,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:12,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [245739801] [2020-09-21 12:36:12,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:12,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 12:36:12,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719528381] [2020-09-21 12:36:12,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:36:12,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:12,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:36:12,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:36:12,813 INFO L87 Difference]: Start difference. First operand 51 states and 57 transitions. Second operand 7 states. [2020-09-21 12:36:12,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:12,994 INFO L93 Difference]: Finished difference Result 70 states and 77 transitions. [2020-09-21 12:36:12,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 12:36:12,994 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-09-21 12:36:12,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:12,995 INFO L225 Difference]: With dead ends: 70 [2020-09-21 12:36:12,996 INFO L226 Difference]: Without dead ends: 66 [2020-09-21 12:36:12,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:36:12,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-21 12:36:13,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 52. [2020-09-21 12:36:13,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-21 12:36:13,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2020-09-21 12:36:13,002 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 18 [2020-09-21 12:36:13,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:13,002 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2020-09-21 12:36:13,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:36:13,002 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2020-09-21 12:36:13,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-21 12:36:13,003 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:13,003 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:36:13,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-21 12:36:13,004 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:13,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:13,004 INFO L82 PathProgramCache]: Analyzing trace with hash 2046254387, now seen corresponding path program 1 times [2020-09-21 12:36:13,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:13,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1969746896] [2020-09-21 12:36:13,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:13,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:13,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:13,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:13,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 12:36:13,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:36:13,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-09-21 12:36:13,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:13,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:36:13,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:36:13,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 12:36:13,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:13,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:13,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:13,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:13,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:13,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:13,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:36:13,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:13,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:13,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:13,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:13,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:13,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:13,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1969746896] [2020-09-21 12:36:13,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:13,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 12:36:13,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85506282] [2020-09-21 12:36:13,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:36:13,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:13,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:36:13,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:36:13,362 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand 7 states. [2020-09-21 12:36:13,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:13,566 INFO L93 Difference]: Finished difference Result 87 states and 96 transitions. [2020-09-21 12:36:13,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:36:13,566 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-21 12:36:13,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:13,567 INFO L225 Difference]: With dead ends: 87 [2020-09-21 12:36:13,567 INFO L226 Difference]: Without dead ends: 85 [2020-09-21 12:36:13,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:36:13,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-09-21 12:36:13,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 55. [2020-09-21 12:36:13,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-21 12:36:13,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 61 transitions. [2020-09-21 12:36:13,573 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 61 transitions. Word has length 19 [2020-09-21 12:36:13,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:13,574 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 61 transitions. [2020-09-21 12:36:13,574 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:36:13,574 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 61 transitions. [2020-09-21 12:36:13,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-21 12:36:13,575 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:13,575 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] [2020-09-21 12:36:13,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-21 12:36:13,575 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:13,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:13,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1992174599, now seen corresponding path program 1 times [2020-09-21 12:36:13,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:13,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [199573263] [2020-09-21 12:36:13,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:13,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:13,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:13,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:13,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:13,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:13,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:14,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:14,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-21 12:36:14,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-21 12:36:14,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 415 [2020-09-21 12:36:14,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:14,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:36:14,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:36:14,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 12:36:14,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:14,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:14,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:14,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:14,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:14,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:14,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:36:14,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:14,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:14,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:14,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:14,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:14,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:14,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [199573263] [2020-09-21 12:36:14,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:14,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:36:14,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812577775] [2020-09-21 12:36:14,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:36:14,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:14,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:36:14,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:36:14,048 INFO L87 Difference]: Start difference. First operand 55 states and 61 transitions. Second operand 5 states. [2020-09-21 12:36:14,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:14,145 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2020-09-21 12:36:14,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 12:36:14,145 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-09-21 12:36:14,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:14,146 INFO L225 Difference]: With dead ends: 55 [2020-09-21 12:36:14,146 INFO L226 Difference]: Without dead ends: 53 [2020-09-21 12:36:14,147 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:36:14,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-09-21 12:36:14,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-09-21 12:36:14,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-21 12:36:14,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 59 transitions. [2020-09-21 12:36:14,152 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 59 transitions. Word has length 20 [2020-09-21 12:36:14,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:14,152 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 59 transitions. [2020-09-21 12:36:14,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:36:14,153 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions. [2020-09-21 12:36:14,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-21 12:36:14,153 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:14,153 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] [2020-09-21 12:36:14,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-21 12:36:14,154 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:14,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:14,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1627873548, now seen corresponding path program 1 times [2020-09-21 12:36:14,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:14,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1759749923] [2020-09-21 12:36:14,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:14,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:14,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:14,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:14,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:14,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:14,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:14,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:36:14,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:36:14,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 597 [2020-09-21 12:36:14,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:14,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:36:14,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-21 12:36:14,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:36:14,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:14,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:14,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:14,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:14,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:14,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:14,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:36:14,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:14,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:14,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:14,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:14,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:14,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:14,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1759749923] [2020-09-21 12:36:14,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:14,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:36:14,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690936373] [2020-09-21 12:36:14,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:36:14,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:14,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:36:14,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:36:14,807 INFO L87 Difference]: Start difference. First operand 53 states and 59 transitions. Second operand 5 states. [2020-09-21 12:36:14,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:14,898 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2020-09-21 12:36:14,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:36:14,899 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-09-21 12:36:14,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:14,900 INFO L225 Difference]: With dead ends: 53 [2020-09-21 12:36:14,900 INFO L226 Difference]: Without dead ends: 49 [2020-09-21 12:36:14,901 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:36:14,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-09-21 12:36:14,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-09-21 12:36:14,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-09-21 12:36:14,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2020-09-21 12:36:14,905 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 21 [2020-09-21 12:36:14,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:14,906 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2020-09-21 12:36:14,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:36:14,906 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2020-09-21 12:36:14,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-21 12:36:14,906 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:14,907 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] [2020-09-21 12:36:14,907 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-21 12:36:14,907 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:14,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:14,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1062287301, now seen corresponding path program 1 times [2020-09-21 12:36:14,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:14,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2139199816] [2020-09-21 12:36:14,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:14,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:14,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:14,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:15,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:15,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:15,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-21 12:36:15,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:36:15,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 568 [2020-09-21 12:36:15,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:15,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:36:15,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-21 12:36:15,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 12:36:15,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:15,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:15,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:15,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:15,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:15,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:15,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:15,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:36:15,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:15,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:15,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:15,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:15,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:15,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:15,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2139199816] [2020-09-21 12:36:15,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:15,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 12:36:15,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079163772] [2020-09-21 12:36:15,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:36:15,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:15,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:36:15,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:36:15,571 INFO L87 Difference]: Start difference. First operand 49 states and 55 transitions. Second operand 7 states. [2020-09-21 12:36:15,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:15,809 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2020-09-21 12:36:15,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:36:15,809 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-09-21 12:36:15,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:15,810 INFO L225 Difference]: With dead ends: 64 [2020-09-21 12:36:15,810 INFO L226 Difference]: Without dead ends: 62 [2020-09-21 12:36:15,811 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:36:15,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-21 12:36:15,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 44. [2020-09-21 12:36:15,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-21 12:36:15,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2020-09-21 12:36:15,815 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 22 [2020-09-21 12:36:15,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:15,815 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2020-09-21 12:36:15,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:36:15,815 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2020-09-21 12:36:15,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-21 12:36:15,816 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:15,816 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] [2020-09-21 12:36:15,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-21 12:36:15,816 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:15,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:15,817 INFO L82 PathProgramCache]: Analyzing trace with hash 392830346, now seen corresponding path program 1 times [2020-09-21 12:36:15,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:15,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [298966403] [2020-09-21 12:36:15,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:15,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:15,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:15,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:16,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:16,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 12:36:16,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:36:16,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-21 12:36:16,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:16,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:36:16,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-21 12:36:16,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 12:36:16,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:36:16,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:16,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:16,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:16,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:16,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:16,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:36:16,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:16,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:16,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:16,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:16,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:16,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:16,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [298966403] [2020-09-21 12:36:16,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:16,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 12:36:16,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794187053] [2020-09-21 12:36:16,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:36:16,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:16,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:36:16,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:36:16,930 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand 8 states. [2020-09-21 12:36:17,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:17,083 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2020-09-21 12:36:17,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:36:17,083 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-09-21 12:36:17,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:17,084 INFO L225 Difference]: With dead ends: 56 [2020-09-21 12:36:17,084 INFO L226 Difference]: Without dead ends: 54 [2020-09-21 12:36:17,084 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:36:17,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-21 12:36:17,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 39. [2020-09-21 12:36:17,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-09-21 12:36:17,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2020-09-21 12:36:17,088 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 23 [2020-09-21 12:36:17,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:17,090 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2020-09-21 12:36:17,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:36:17,090 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2020-09-21 12:36:17,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-21 12:36:17,091 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:17,092 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] [2020-09-21 12:36:17,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-21 12:36:17,092 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:17,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:17,092 INFO L82 PathProgramCache]: Analyzing trace with hash 440545596, now seen corresponding path program 1 times [2020-09-21 12:36:17,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:17,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [361059927] [2020-09-21 12:36:17,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:17,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:17,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:17,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:17,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:18,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:18,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 12:36:18,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:36:18,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1005 [2020-09-21 12:36:18,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:18,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:36:18,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-21 12:36:18,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 12:36:18,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:18,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:18,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:18,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:18,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:18,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:18,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:18,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:36:18,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:18,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:18,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:18,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:18,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:18,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:18,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [361059927] [2020-09-21 12:36:18,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:18,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 12:36:18,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366174200] [2020-09-21 12:36:18,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:36:18,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:18,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:36:18,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:36:18,206 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 8 states. [2020-09-21 12:36:18,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:18,329 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2020-09-21 12:36:18,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 12:36:18,329 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-09-21 12:36:18,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:18,330 INFO L225 Difference]: With dead ends: 39 [2020-09-21 12:36:18,330 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 12:36:18,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-21 12:36:18,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 12:36:18,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 12:36:18,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 12:36:18,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 12:36:18,332 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2020-09-21 12:36:18,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:18,332 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 12:36:18,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:36:18,332 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 12:36:18,332 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 12:36:18,333 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-09-21 12:36:18,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 12:36:18,461 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 22 [2020-09-21 12:36:18,591 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 44 [2020-09-21 12:36:18,795 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 39 [2020-09-21 12:36:18,972 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 8 [2020-09-21 12:36:19,107 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 12:36:19,107 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__tmp_383_0~0 |old(~__tmp_383_0~0)|) (= ~__tmp_259_0~0 |old(~__tmp_259_0~0)|) (= ~__return_main~0 |old(~__return_main~0)|) (= ~__return_305~0 |old(~__return_305~0)|)) [2020-09-21 12:36:19,107 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 12:36:19,108 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 12:36:19,108 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-21 12:36:19,108 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 12:36:19,108 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 12:36:19,108 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-09-21 12:36:19,108 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-21 12:36:19,108 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-09-21 12:36:19,108 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-09-21 12:36:19,109 INFO L268 CegarLoopResult]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2020-09-21 12:36:19,111 INFO L264 CegarLoopResult]: At program point L382(lines 280 389) the Hoare annotation is: (and (<= main_~main__t~0 main_~main__tagbuf_len~0) (not (= main_~main__tagbuf_len~0 main_~main__t~0)) (not (= main_~__VERIFIER_assert__cond~13 0)) (<= 0 main_~main__t~0)) [2020-09-21 12:36:19,111 INFO L264 CegarLoopResult]: At program point L349(lines 30 393) the Hoare annotation is: (and (<= main_~main__t~0 main_~main__tagbuf_len~0) (not (= main_~main__tagbuf_len~0 main_~main__t~0)) (<= 0 main_~main__t~0)) [2020-09-21 12:36:19,111 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 400) no Hoare annotation was computed. [2020-09-21 12:36:19,111 INFO L268 CegarLoopResult]: For program point L184(lines 184 194) no Hoare annotation was computed. [2020-09-21 12:36:19,111 INFO L268 CegarLoopResult]: For program point L374(lines 374 383) no Hoare annotation was computed. [2020-09-21 12:36:19,112 INFO L268 CegarLoopResult]: For program point L341(lines 341 350) no Hoare annotation was computed. [2020-09-21 12:36:19,112 INFO L268 CegarLoopResult]: For program point L110(lines 110 201) no Hoare annotation was computed. [2020-09-21 12:36:19,112 INFO L268 CegarLoopResult]: For program point L234(line 234) no Hoare annotation was computed. [2020-09-21 12:36:19,112 INFO L268 CegarLoopResult]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 276) no Hoare annotation was computed. [2020-09-21 12:36:19,112 INFO L264 CegarLoopResult]: At program point L193(lines 54 251) the Hoare annotation is: (and (<= 1 main_~main__t~0) (<= main_~main__t~0 main_~main__tagbuf_len~0)) [2020-09-21 12:36:19,112 INFO L268 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-09-21 12:36:19,113 INFO L268 CegarLoopResult]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 152) no Hoare annotation was computed. [2020-09-21 12:36:19,113 INFO L268 CegarLoopResult]: For program point L276(line 276) no Hoare annotation was computed. [2020-09-21 12:36:19,113 INFO L268 CegarLoopResult]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 331) no Hoare annotation was computed. [2020-09-21 12:36:19,113 INFO L268 CegarLoopResult]: For program point L103(lines 103 207) no Hoare annotation was computed. [2020-09-21 12:36:19,113 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-21 12:36:19,113 INFO L268 CegarLoopResult]: For program point L37(lines 37 253) no Hoare annotation was computed. [2020-09-21 12:36:19,113 INFO L268 CegarLoopResult]: For program point L293(lines 293 315) no Hoare annotation was computed. [2020-09-21 12:36:19,113 INFO L268 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-09-21 12:36:19,114 INFO L268 CegarLoopResult]: For program point L376(line 376) no Hoare annotation was computed. [2020-09-21 12:36:19,114 INFO L268 CegarLoopResult]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 140) no Hoare annotation was computed. [2020-09-21 12:36:19,114 INFO L268 CegarLoopResult]: For program point L343(line 343) no Hoare annotation was computed. [2020-09-21 12:36:19,114 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-09-21 12:36:19,114 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 400) no Hoare annotation was computed. [2020-09-21 12:36:19,116 INFO L268 CegarLoopResult]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 307) no Hoare annotation was computed. [2020-09-21 12:36:19,116 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 50) no Hoare annotation was computed. [2020-09-21 12:36:19,116 INFO L268 CegarLoopResult]: For program point L30(lines 30 393) no Hoare annotation was computed. [2020-09-21 12:36:19,116 INFO L268 CegarLoopResult]: For program point L286(lines 286 388) no Hoare annotation was computed. [2020-09-21 12:36:19,117 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 13 400) the Hoare annotation is: (and (= |old(~__tmp_259_0~0)| ~__tmp_259_0~0) (= |old(~__return_305~0)| ~__return_305~0) (= |old(~__tmp_383_0~0)| ~__tmp_383_0~0)) [2020-09-21 12:36:19,119 INFO L268 CegarLoopResult]: For program point L220(lines 220 242) no Hoare annotation was computed. [2020-09-21 12:36:19,119 INFO L268 CegarLoopResult]: For program point L22(lines 22 394) no Hoare annotation was computed. [2020-09-21 12:36:19,119 INFO L268 CegarLoopResult]: For program point L80(lines 80 90) no Hoare annotation was computed. [2020-09-21 12:36:19,120 INFO L268 CegarLoopResult]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 186) no Hoare annotation was computed. [2020-09-21 12:36:19,120 INFO L268 CegarLoopResult]: For program point L138(lines 138 160) no Hoare annotation was computed. [2020-09-21 12:36:19,120 INFO L268 CegarLoopResult]: For program point L295(line 295) no Hoare annotation was computed. [2020-09-21 12:36:19,120 INFO L268 CegarLoopResult]: For program point mainErr16ASSERT_VIOLATIONERROR_FUNCTION(line 364) no Hoare annotation was computed. [2020-09-21 12:36:19,120 INFO L268 CegarLoopResult]: For program point L122(lines 122 199) no Hoare annotation was computed. [2020-09-21 12:36:19,120 INFO L268 CegarLoopResult]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 174) no Hoare annotation was computed. [2020-09-21 12:36:19,120 INFO L271 CegarLoopResult]: At program point L312(lines 30 393) the Hoare annotation is: true [2020-09-21 12:36:19,120 INFO L268 CegarLoopResult]: For program point L213(lines 213 248) no Hoare annotation was computed. [2020-09-21 12:36:19,120 INFO L268 CegarLoopResult]: For program point L48(lines 48 251) no Hoare annotation was computed. [2020-09-21 12:36:19,121 INFO L268 CegarLoopResult]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 343) no Hoare annotation was computed. [2020-09-21 12:36:19,121 INFO L268 CegarLoopResult]: For program point L172(lines 172 196) no Hoare annotation was computed. [2020-09-21 12:36:19,121 INFO L268 CegarLoopResult]: For program point L362(lines 362 385) no Hoare annotation was computed. [2020-09-21 12:36:19,121 INFO L268 CegarLoopResult]: For program point L329(lines 329 352) no Hoare annotation was computed. [2020-09-21 12:36:19,121 INFO L268 CegarLoopResult]: For program point L263(lines 263 391) no Hoare annotation was computed. [2020-09-21 12:36:19,121 INFO L268 CegarLoopResult]: For program point L131(lines 131 198) no Hoare annotation was computed. [2020-09-21 12:36:19,121 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 82) no Hoare annotation was computed. [2020-09-21 12:36:19,121 INFO L268 CegarLoopResult]: For program point L222(line 222) no Hoare annotation was computed. [2020-09-21 12:36:19,123 INFO L264 CegarLoopResult]: At program point L247(lines 99 249) the Hoare annotation is: (and (<= 1 main_~main__t~0) (<= main_~main__t~0 main_~main__tagbuf_len~0) (not (= main_~main__tagbuf_len~0 main_~main__t~0))) [2020-09-21 12:36:19,123 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-09-21 12:36:19,123 INFO L268 CegarLoopResult]: For program point L305(lines 305 313) no Hoare annotation was computed. [2020-09-21 12:36:19,123 INFO L268 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-09-21 12:36:19,123 INFO L268 CegarLoopResult]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 234) no Hoare annotation was computed. [2020-09-21 12:36:19,123 INFO L268 CegarLoopResult]: For program point L99(lines 99 249) no Hoare annotation was computed. [2020-09-21 12:36:19,124 INFO L268 CegarLoopResult]: For program point L322(lines 322 387) no Hoare annotation was computed. [2020-09-21 12:36:19,124 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 70) no Hoare annotation was computed. [2020-09-21 12:36:19,124 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-09-21 12:36:19,124 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-09-21 12:36:19,124 INFO L268 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-09-21 12:36:19,124 INFO L268 CegarLoopResult]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 222) no Hoare annotation was computed. [2020-09-21 12:36:19,124 INFO L268 CegarLoopResult]: For program point L364(line 364) no Hoare annotation was computed. [2020-09-21 12:36:19,125 INFO L268 CegarLoopResult]: For program point L331(line 331) no Hoare annotation was computed. [2020-09-21 12:36:19,125 INFO L268 CegarLoopResult]: For program point L232(lines 232 240) no Hoare annotation was computed. [2020-09-21 12:36:19,125 INFO L268 CegarLoopResult]: For program point mainErr17ASSERT_VIOLATIONERROR_FUNCTION(line 376) no Hoare annotation was computed. [2020-09-21 12:36:19,129 INFO L268 CegarLoopResult]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 124) no Hoare annotation was computed. [2020-09-21 12:36:19,129 INFO L268 CegarLoopResult]: For program point L150(lines 150 158) no Hoare annotation was computed. [2020-09-21 12:36:19,129 INFO L268 CegarLoopResult]: For program point L307(line 307) no Hoare annotation was computed. [2020-09-21 12:36:19,129 INFO L268 CegarLoopResult]: For program point L18(lines 18 399) no Hoare annotation was computed. [2020-09-21 12:36:19,129 INFO L268 CegarLoopResult]: For program point L274(lines 274 389) no Hoare annotation was computed. [2020-09-21 12:36:19,129 INFO L268 CegarLoopResult]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 295) no Hoare annotation was computed. [2020-09-21 12:36:19,129 INFO L268 CegarLoopResult]: For program point L68(lines 68 92) no Hoare annotation was computed. [2020-09-21 12:36:19,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:36:19 BoogieIcfgContainer [2020-09-21 12:36:19,164 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 12:36:19,174 INFO L168 Benchmark]: Toolchain (without parser) took 16038.29 ms. Allocated memory was 141.0 MB in the beginning and 348.7 MB in the end (delta: 207.6 MB). Free memory was 102.8 MB in the beginning and 181.7 MB in the end (delta: -78.9 MB). Peak memory consumption was 128.7 MB. Max. memory is 7.1 GB. [2020-09-21 12:36:19,175 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 12:36:19,175 INFO L168 Benchmark]: CACSL2BoogieTranslator took 407.46 ms. Allocated memory is still 141.0 MB. Free memory was 102.2 MB in the beginning and 89.2 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2020-09-21 12:36:19,179 INFO L168 Benchmark]: Boogie Preprocessor took 134.70 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 89.2 MB in the beginning and 181.7 MB in the end (delta: -92.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-09-21 12:36:19,180 INFO L168 Benchmark]: RCFGBuilder took 537.41 ms. Allocated memory is still 204.5 MB. Free memory was 181.7 MB in the beginning and 156.0 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2020-09-21 12:36:19,180 INFO L168 Benchmark]: TraceAbstraction took 14948.79 ms. Allocated memory was 204.5 MB in the beginning and 348.7 MB in the end (delta: 144.2 MB). Free memory was 155.4 MB in the beginning and 181.7 MB in the end (delta: -26.3 MB). Peak memory consumption was 117.9 MB. Max. memory is 7.1 GB. [2020-09-21 12:36:19,188 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 407.46 ms. Allocated memory is still 141.0 MB. Free memory was 102.2 MB in the beginning and 89.2 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.70 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 89.2 MB in the beginning and 181.7 MB in the end (delta: -92.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 537.41 ms. Allocated memory is still 204.5 MB. Free memory was 181.7 MB in the beginning and 156.0 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14948.79 ms. Allocated memory was 204.5 MB in the beginning and 348.7 MB in the end (delta: 144.2 MB). Free memory was 155.4 MB in the beginning and 181.7 MB in the end (delta: -26.3 MB). Peak memory consumption was 117.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 343]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 364]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 174]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 186]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 307]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 222]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 234]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 331]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 295]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 124]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 276]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 376]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 82]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 152]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 140]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 112]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 70]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 1 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: (1 <= main__t && main__t <= main__tagbuf_len) && !(main__tagbuf_len == main__t) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (main__t <= main__tagbuf_len && !(main__tagbuf_len == main__t)) && 0 <= main__t - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 280]: Loop Invariant Derived loop invariant: ((main__t <= main__tagbuf_len && !(main__tagbuf_len == main__t)) && !(__VERIFIER_assert__cond == 0)) && 0 <= main__t - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 84 locations, 18 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.0s, OverallIterations: 21, TraceHistogramMax: 1, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 989 SDtfs, 1596 SDslu, 1084 SDs, 0 SdLazy, 2566 SolverSat, 159 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 211 GetRequests, 71 SyntacticMatches, 1 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 21 MinimizatonAttempts, 370 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 14 NumberOfFragments, 70 HoareAnnotationTreeSize, 9 FomulaSimplifications, 221016 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 9 FomulaSimplificationsInter, 7401 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 8.9s InterpolantComputationTime, 368 NumberOfCodeBlocks, 368 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 347 ConstructedInterpolants, 0 QuantifiedInterpolants, 18572 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 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...