/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 --rcfgbuilder.size.of.a.code.block SingleStatement --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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:21:12,779 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:21:12,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:21:12,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:21:12,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:21:12,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:21:12,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:21:12,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:21:12,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:21:12,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:21:12,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:21:12,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:21:12,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:21:12,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:21:12,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:21:12,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:21:12,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:21:12,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:21:12,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:21:12,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:21:12,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:21:12,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:21:12,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:21:12,878 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:21:12,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:21:12,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:21:12,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:21:12,886 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:21:12,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:21:12,888 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:21:12,888 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:21:12,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:21:12,892 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:21:12,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:21:12,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:21:12,895 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:21:12,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:21:12,896 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:21:12,896 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:21:12,897 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:21:12,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:21:12,899 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 [2020-09-24 17:21:12,949 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:21:12,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:21:12,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:21:12,952 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:21:12,952 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:21:12,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:21:12,952 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:21:12,953 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:21:12,953 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:21:12,953 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:21:12,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:21:12,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:21:12,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:21:12,955 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:21:12,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:21:12,955 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:21:12,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:21:12,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:21:12,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:21:12,956 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:21:12,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:21:12,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:21:12,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:21:12,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:21:12,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:21:12,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:21:12,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:21:12,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:21:12,958 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:21:12,958 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.rcfgbuilder: Size of a code block -> SingleStatement 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;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;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;log-additional-information=true; [2020-09-24 17:21:13,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:21:13,406 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:21:13,412 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:21:13,414 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:21:13,414 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:21:13,416 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-09-24 17:21:13,491 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f6268ec8/d37bfb4f68cb43268e3d70b19bfa98e8/FLAG9733c70db [2020-09-24 17:21:14,026 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:21:14,027 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-09-24 17:21:14,037 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f6268ec8/d37bfb4f68cb43268e3d70b19bfa98e8/FLAG9733c70db [2020-09-24 17:21:14,333 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f6268ec8/d37bfb4f68cb43268e3d70b19bfa98e8 [2020-09-24 17:21:14,346 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:21:14,352 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:21:14,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:21:14,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:21:14,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:21:14,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:21:14" (1/1) ... [2020-09-24 17:21:14,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@621684ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:21:14, skipping insertion in model container [2020-09-24 17:21:14,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:21:14" (1/1) ... [2020-09-24 17:21:14,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:21:14,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:21:14,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:21:14,671 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:21:14,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:21:14,745 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:21:14,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:21:14 WrapperNode [2020-09-24 17:21:14,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:21:14,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:21:14,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:21:14,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:21:14,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:21:14" (1/1) ... [2020-09-24 17:21:14,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:21:14" (1/1) ... [2020-09-24 17:21:14,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:21:14" (1/1) ... [2020-09-24 17:21:14,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:21:14" (1/1) ... [2020-09-24 17:21:14,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:21:14" (1/1) ... [2020-09-24 17:21:14,865 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:21:14" (1/1) ... [2020-09-24 17:21:14,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:21:14" (1/1) ... [2020-09-24 17:21:14,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:21:14,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:21:14,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:21:14,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:21:14,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:21:14" (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 [2020-09-24 17:21:14,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:21:14,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:21:14,955 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 17:21:14,956 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:21:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:21:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 17:21:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 17:21:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 17:21:14,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:21:14,957 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:21:14,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:21:14,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:21:15,561 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:21:15,562 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 17:21:15,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:21:15 BoogieIcfgContainer [2020-09-24 17:21:15,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:21:15,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:21:15,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:21:15,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:21:15,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:21:14" (1/3) ... [2020-09-24 17:21:15,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f9febe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:21:15, skipping insertion in model container [2020-09-24 17:21:15,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:21:14" (2/3) ... [2020-09-24 17:21:15,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f9febe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:21:15, skipping insertion in model container [2020-09-24 17:21:15,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:21:15" (3/3) ... [2020-09-24 17:21:15,580 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2020-09-24 17:21:15,592 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:21:15,603 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-09-24 17:21:15,626 INFO L251 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-09-24 17:21:15,661 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:21:15,662 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:21:15,662 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:21:15,662 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:21:15,662 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:21:15,662 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:21:15,663 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:21:15,663 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:21:15,695 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-09-24 17:21:15,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-24 17:21:15,704 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:15,706 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:21:15,706 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]=== [2020-09-24 17:21:15,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:15,715 INFO L82 PathProgramCache]: Analyzing trace with hash -2016263875, now seen corresponding path program 1 times [2020-09-24 17:21:15,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:15,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1325420531] [2020-09-24 17:21:15,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:15,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:16,204 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:16,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 17:21:16,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:16,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-09-24 17:21:16,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:16,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:21:16,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 17:21:16,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:21:16,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:21:16,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:16,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:16,312 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:16,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:16,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:16,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:21:16,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:16,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:16,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:16,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:16,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:16,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:21:16,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1325420531] [2020-09-24 17:21:16,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:16,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 17:21:16,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831724993] [2020-09-24 17:21:16,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 17:21:16,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:16,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 17:21:16,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:21:16,359 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 7 states. [2020-09-24 17:21:17,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:17,165 INFO L93 Difference]: Finished difference Result 290 states and 336 transitions. [2020-09-24 17:21:17,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 17:21:17,168 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-09-24 17:21:17,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:17,185 INFO L225 Difference]: With dead ends: 290 [2020-09-24 17:21:17,185 INFO L226 Difference]: Without dead ends: 239 [2020-09-24 17:21:17,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-09-24 17:21:17,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-09-24 17:21:17,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 187. [2020-09-24 17:21:17,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-09-24 17:21:17,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 190 transitions. [2020-09-24 17:21:17,258 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 190 transitions. Word has length 38 [2020-09-24 17:21:17,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:17,258 INFO L479 AbstractCegarLoop]: Abstraction has 187 states and 190 transitions. [2020-09-24 17:21:17,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 17:21:17,259 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 190 transitions. [2020-09-24 17:21:17,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-24 17:21:17,260 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:17,260 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:21:17,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:21:17,261 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]=== [2020-09-24 17:21:17,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:17,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1105206656, now seen corresponding path program 1 times [2020-09-24 17:21:17,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:17,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1080420364] [2020-09-24 17:21:17,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:17,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:17,532 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:17,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 17:21:17,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:17,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-09-24 17:21:17,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:17,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:21:17,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 17:21:17,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 17:21:17,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:21:17,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:17,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:17,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:17,626 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:17,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:17,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:17,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:21:17,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:17,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:17,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:17,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:17,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:21:17,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:21:17,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1080420364] [2020-09-24 17:21:17,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:17,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 17:21:17,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350765802] [2020-09-24 17:21:17,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 17:21:17,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:17,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 17:21:17,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 17:21:17,639 INFO L87 Difference]: Start difference. First operand 187 states and 190 transitions. Second operand 8 states. [2020-09-24 17:21:17,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:17,907 INFO L93 Difference]: Finished difference Result 187 states and 190 transitions. [2020-09-24 17:21:17,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 17:21:17,908 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-09-24 17:21:17,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:17,912 INFO L225 Difference]: With dead ends: 187 [2020-09-24 17:21:17,912 INFO L226 Difference]: Without dead ends: 185 [2020-09-24 17:21:17,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-24 17:21:17,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-09-24 17:21:17,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2020-09-24 17:21:17,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-09-24 17:21:17,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 188 transitions. [2020-09-24 17:21:17,935 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 188 transitions. Word has length 43 [2020-09-24 17:21:17,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:17,935 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 188 transitions. [2020-09-24 17:21:17,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 17:21:17,936 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 188 transitions. [2020-09-24 17:21:17,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-24 17:21:17,937 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:17,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:21:17,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:21:17,938 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]=== [2020-09-24 17:21:17,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:17,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1193283001, now seen corresponding path program 1 times [2020-09-24 17:21:17,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:17,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [902223757] [2020-09-24 17:21:17,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:17,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:18,069 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:18,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 17:21:18,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:18,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 17:21:18,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:18,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:21:18,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 17:21:18,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 17:21:18,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:18,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:18,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:18,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:18,131 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:18,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:18,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:18,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:21:18,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:18,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:18,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:18,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:18,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:18,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:21:18,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [902223757] [2020-09-24 17:21:18,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:18,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 17:21:18,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163856778] [2020-09-24 17:21:18,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 17:21:18,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:18,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 17:21:18,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:21:18,142 INFO L87 Difference]: Start difference. First operand 185 states and 188 transitions. Second operand 7 states. [2020-09-24 17:21:18,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:18,643 INFO L93 Difference]: Finished difference Result 237 states and 242 transitions. [2020-09-24 17:21:18,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 17:21:18,643 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2020-09-24 17:21:18,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:18,646 INFO L225 Difference]: With dead ends: 237 [2020-09-24 17:21:18,646 INFO L226 Difference]: Without dead ends: 235 [2020-09-24 17:21:18,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-24 17:21:18,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-09-24 17:21:18,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 183. [2020-09-24 17:21:18,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-09-24 17:21:18,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 186 transitions. [2020-09-24 17:21:18,659 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 186 transitions. Word has length 53 [2020-09-24 17:21:18,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:18,660 INFO L479 AbstractCegarLoop]: Abstraction has 183 states and 186 transitions. [2020-09-24 17:21:18,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 17:21:18,660 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 186 transitions. [2020-09-24 17:21:18,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-24 17:21:18,661 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:18,662 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:21:18,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:21:18,662 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]=== [2020-09-24 17:21:18,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:18,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1236242579, now seen corresponding path program 1 times [2020-09-24 17:21:18,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:18,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1790783117] [2020-09-24 17:21:18,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:18,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:18,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:19,123 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:19,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 17:21:19,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:21:19,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 446 [2020-09-24 17:21:19,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:19,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:21:19,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-24 17:21:19,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 17:21:19,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:19,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:19,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:19,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:19,248 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:19,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:19,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:19,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:21:19,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:19,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:19,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:19,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:19,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:19,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:21:19,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1790783117] [2020-09-24 17:21:19,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:19,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 17:21:19,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965107281] [2020-09-24 17:21:19,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 17:21:19,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:19,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 17:21:19,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-24 17:21:19,265 INFO L87 Difference]: Start difference. First operand 183 states and 186 transitions. Second operand 8 states. [2020-09-24 17:21:19,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:19,555 INFO L93 Difference]: Finished difference Result 183 states and 186 transitions. [2020-09-24 17:21:19,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 17:21:19,556 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-09-24 17:21:19,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:19,558 INFO L225 Difference]: With dead ends: 183 [2020-09-24 17:21:19,558 INFO L226 Difference]: Without dead ends: 181 [2020-09-24 17:21:19,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-09-24 17:21:19,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-09-24 17:21:19,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2020-09-24 17:21:19,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-09-24 17:21:19,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 184 transitions. [2020-09-24 17:21:19,581 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 184 transitions. Word has length 58 [2020-09-24 17:21:19,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:19,583 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 184 transitions. [2020-09-24 17:21:19,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 17:21:19,583 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 184 transitions. [2020-09-24 17:21:19,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-24 17:21:19,585 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:19,586 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:21:19,586 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:21:19,586 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]=== [2020-09-24 17:21:19,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:19,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1703094031, now seen corresponding path program 1 times [2020-09-24 17:21:19,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:19,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1919920498] [2020-09-24 17:21:19,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:19,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:19,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:19,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:19,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:19,994 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:19,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 17:21:19,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 17:21:19,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-09-24 17:21:19,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:19,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:21:19,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-24 17:21:19,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 17:21:19,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:20,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:20,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:20,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:20,085 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:20,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:20,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:20,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:21:20,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:20,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:20,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:20,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:20,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:20,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:21:20,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1919920498] [2020-09-24 17:21:20,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:20,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 17:21:20,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755095826] [2020-09-24 17:21:20,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 17:21:20,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:20,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 17:21:20,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 17:21:20,095 INFO L87 Difference]: Start difference. First operand 181 states and 184 transitions. Second operand 8 states. [2020-09-24 17:21:21,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:21,362 INFO L93 Difference]: Finished difference Result 334 states and 341 transitions. [2020-09-24 17:21:21,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 17:21:21,362 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-09-24 17:21:21,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:21,366 INFO L225 Difference]: With dead ends: 334 [2020-09-24 17:21:21,366 INFO L226 Difference]: Without dead ends: 332 [2020-09-24 17:21:21,367 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-09-24 17:21:21,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-09-24 17:21:21,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 192. [2020-09-24 17:21:21,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-09-24 17:21:21,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 197 transitions. [2020-09-24 17:21:21,379 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 197 transitions. Word has length 64 [2020-09-24 17:21:21,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:21,379 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 197 transitions. [2020-09-24 17:21:21,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 17:21:21,380 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 197 transitions. [2020-09-24 17:21:21,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 17:21:21,381 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:21,381 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:21:21,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 17:21:21,382 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]=== [2020-09-24 17:21:21,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:21,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1179531825, now seen corresponding path program 1 times [2020-09-24 17:21:21,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:21,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1454685372] [2020-09-24 17:21:21,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:21,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:21,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:21,809 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:21,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 17:21:21,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:21:21,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 413 [2020-09-24 17:21:21,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:21,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:21:21,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 17:21:21,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 17:21:21,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:21,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:21,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:21,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:21,898 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:21,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:21,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:21,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:21:21,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:21,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:21,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:21,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:21,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:21,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:21:21,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1454685372] [2020-09-24 17:21:21,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:21,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 17:21:21,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002711502] [2020-09-24 17:21:21,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 17:21:21,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:21,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 17:21:21,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:21:21,910 INFO L87 Difference]: Start difference. First operand 192 states and 197 transitions. Second operand 7 states. [2020-09-24 17:21:23,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:23,013 INFO L93 Difference]: Finished difference Result 471 states and 480 transitions. [2020-09-24 17:21:23,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 17:21:23,017 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-09-24 17:21:23,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:23,020 INFO L225 Difference]: With dead ends: 471 [2020-09-24 17:21:23,020 INFO L226 Difference]: Without dead ends: 469 [2020-09-24 17:21:23,021 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2020-09-24 17:21:23,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-09-24 17:21:23,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 197. [2020-09-24 17:21:23,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-09-24 17:21:23,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 202 transitions. [2020-09-24 17:21:23,032 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 202 transitions. Word has length 69 [2020-09-24 17:21:23,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:23,033 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 202 transitions. [2020-09-24 17:21:23,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 17:21:23,033 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 202 transitions. [2020-09-24 17:21:23,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 17:21:23,034 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:23,035 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:21:23,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 17:21:23,035 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]=== [2020-09-24 17:21:23,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:23,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1472635957, now seen corresponding path program 1 times [2020-09-24 17:21:23,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:23,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [645251489] [2020-09-24 17:21:23,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:23,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:23,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:23,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:23,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:23,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:26,642 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:26,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 17:21:26,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:21:26,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3593 [2020-09-24 17:21:26,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:26,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:21:26,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 17:21:26,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 17:21:26,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:26,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:26,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:26,725 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:26,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:26,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:26,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:21:26,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:26,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:26,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:26,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:26,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:21:26,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:21:26,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [645251489] [2020-09-24 17:21:26,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:26,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 17:21:26,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185148981] [2020-09-24 17:21:26,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 17:21:26,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:26,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 17:21:26,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:21:26,741 INFO L87 Difference]: Start difference. First operand 197 states and 202 transitions. Second operand 7 states. [2020-09-24 17:21:27,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:27,088 INFO L93 Difference]: Finished difference Result 197 states and 202 transitions. [2020-09-24 17:21:27,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:21:27,089 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-09-24 17:21:27,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:27,092 INFO L225 Difference]: With dead ends: 197 [2020-09-24 17:21:27,092 INFO L226 Difference]: Without dead ends: 195 [2020-09-24 17:21:27,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-24 17:21:27,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-09-24 17:21:27,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2020-09-24 17:21:27,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-09-24 17:21:27,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 200 transitions. [2020-09-24 17:21:27,102 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 200 transitions. Word has length 69 [2020-09-24 17:21:27,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:27,102 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 200 transitions. [2020-09-24 17:21:27,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 17:21:27,102 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 200 transitions. [2020-09-24 17:21:27,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-24 17:21:27,110 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:27,110 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:21:27,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 17:21:27,111 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]=== [2020-09-24 17:21:27,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:27,111 INFO L82 PathProgramCache]: Analyzing trace with hash 645172388, now seen corresponding path program 1 times [2020-09-24 17:21:27,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:27,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [781760870] [2020-09-24 17:21:27,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:27,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:27,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:27,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:27,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:28,683 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:28,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 17:21:28,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 17:21:28,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1553 [2020-09-24 17:21:28,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:28,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:21:28,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 17:21:28,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 17:21:28,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:28,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:28,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:28,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:28,759 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:28,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:28,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:28,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:21:28,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:28,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:28,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:28,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:28,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:28,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:21:28,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [781760870] [2020-09-24 17:21:28,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:28,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 17:21:28,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861778518] [2020-09-24 17:21:28,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 17:21:28,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:28,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 17:21:28,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:21:28,770 INFO L87 Difference]: Start difference. First operand 195 states and 200 transitions. Second operand 7 states. [2020-09-24 17:21:29,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:29,282 INFO L93 Difference]: Finished difference Result 297 states and 303 transitions. [2020-09-24 17:21:29,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 17:21:29,282 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-09-24 17:21:29,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:29,284 INFO L225 Difference]: With dead ends: 297 [2020-09-24 17:21:29,285 INFO L226 Difference]: Without dead ends: 295 [2020-09-24 17:21:29,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-09-24 17:21:29,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-24 17:21:29,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 193. [2020-09-24 17:21:29,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-09-24 17:21:29,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 198 transitions. [2020-09-24 17:21:29,294 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 198 transitions. Word has length 74 [2020-09-24 17:21:29,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:29,294 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 198 transitions. [2020-09-24 17:21:29,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 17:21:29,295 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 198 transitions. [2020-09-24 17:21:29,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-24 17:21:29,296 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:29,296 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:21:29,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 17:21:29,296 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]=== [2020-09-24 17:21:29,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:29,297 INFO L82 PathProgramCache]: Analyzing trace with hash -2127372300, now seen corresponding path program 1 times [2020-09-24 17:21:29,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:29,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580834969] [2020-09-24 17:21:29,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:29,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:29,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:29,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:29,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:29,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:31,050 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:31,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-24 17:21:31,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:21:31,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1742 [2020-09-24 17:21:31,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:31,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:21:31,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 17:21:31,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-24 17:21:31,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:31,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:31,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:31,143 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:31,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:31,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:31,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:21:31,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:31,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:31,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:31,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:31,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:31,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:21:31,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [580834969] [2020-09-24 17:21:31,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:31,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 17:21:31,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802342363] [2020-09-24 17:21:31,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 17:21:31,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:31,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 17:21:31,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 17:21:31,159 INFO L87 Difference]: Start difference. First operand 193 states and 198 transitions. Second operand 8 states. [2020-09-24 17:21:31,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:31,629 INFO L93 Difference]: Finished difference Result 204 states and 209 transitions. [2020-09-24 17:21:31,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 17:21:31,630 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 75 [2020-09-24 17:21:31,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:31,632 INFO L225 Difference]: With dead ends: 204 [2020-09-24 17:21:31,633 INFO L226 Difference]: Without dead ends: 202 [2020-09-24 17:21:31,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-09-24 17:21:31,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-09-24 17:21:31,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 191. [2020-09-24 17:21:31,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-24 17:21:31,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 196 transitions. [2020-09-24 17:21:31,644 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 196 transitions. Word has length 75 [2020-09-24 17:21:31,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:31,645 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 196 transitions. [2020-09-24 17:21:31,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 17:21:31,645 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 196 transitions. [2020-09-24 17:21:31,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-24 17:21:31,647 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:31,647 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:21:31,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 17:21:31,648 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]=== [2020-09-24 17:21:31,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:31,649 INFO L82 PathProgramCache]: Analyzing trace with hash 2079623045, now seen corresponding path program 1 times [2020-09-24 17:21:31,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:31,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1516060650] [2020-09-24 17:21:31,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:31,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:31,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:31,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:31,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:31,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:32,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:33,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:39,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:48,954 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:48,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-24 17:21:48,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 17:21:48,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17289 [2020-09-24 17:21:48,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:48,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:21:48,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-24 17:21:48,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 17:21:48,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:49,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:49,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:49,018 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:49,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:49,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:49,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:21:49,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:49,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:49,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:49,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:49,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:49,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:21:49,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1516060650] [2020-09-24 17:21:49,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:49,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 17:21:49,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043607422] [2020-09-24 17:21:49,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 17:21:49,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:49,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 17:21:49,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 17:21:49,025 INFO L87 Difference]: Start difference. First operand 191 states and 196 transitions. Second operand 6 states. [2020-09-24 17:21:49,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:49,606 INFO L93 Difference]: Finished difference Result 288 states and 294 transitions. [2020-09-24 17:21:49,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 17:21:49,607 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 80 [2020-09-24 17:21:49,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:49,609 INFO L225 Difference]: With dead ends: 288 [2020-09-24 17:21:49,609 INFO L226 Difference]: Without dead ends: 191 [2020-09-24 17:21:49,610 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-09-24 17:21:49,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-09-24 17:21:49,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2020-09-24 17:21:49,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-24 17:21:49,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 194 transitions. [2020-09-24 17:21:49,617 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 194 transitions. Word has length 80 [2020-09-24 17:21:49,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:49,617 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 194 transitions. [2020-09-24 17:21:49,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 17:21:49,618 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 194 transitions. [2020-09-24 17:21:49,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-24 17:21:49,618 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:49,619 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:21:49,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 17:21:49,619 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]=== [2020-09-24 17:21:49,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:49,620 INFO L82 PathProgramCache]: Analyzing trace with hash -111708917, now seen corresponding path program 1 times [2020-09-24 17:21:49,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:49,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1185941985] [2020-09-24 17:21:49,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:49,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:49,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:49,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:49,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:54,146 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:54,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 17:21:54,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:21:54,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4515 [2020-09-24 17:21:54,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:54,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:21:54,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 17:21:54,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-24 17:21:54,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:54,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:54,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:54,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:54,199 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:54,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:54,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:54,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:21:54,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:54,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:54,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:54,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:54,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:54,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:21:54,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1185941985] [2020-09-24 17:21:54,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:54,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 17:21:54,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261290913] [2020-09-24 17:21:54,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 17:21:54,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:54,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 17:21:54,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:21:54,211 INFO L87 Difference]: Start difference. First operand 191 states and 194 transitions. Second operand 7 states. [2020-09-24 17:21:54,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:54,568 INFO L93 Difference]: Finished difference Result 191 states and 194 transitions. [2020-09-24 17:21:54,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:21:54,569 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2020-09-24 17:21:54,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:54,571 INFO L225 Difference]: With dead ends: 191 [2020-09-24 17:21:54,571 INFO L226 Difference]: Without dead ends: 189 [2020-09-24 17:21:54,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-24 17:21:54,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-09-24 17:21:54,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2020-09-24 17:21:54,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-09-24 17:21:54,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 192 transitions. [2020-09-24 17:21:54,583 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 192 transitions. Word has length 85 [2020-09-24 17:21:54,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:54,583 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 192 transitions. [2020-09-24 17:21:54,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 17:21:54,584 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 192 transitions. [2020-09-24 17:21:54,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-24 17:21:54,585 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:54,586 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:21:54,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 17:21:54,587 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]=== [2020-09-24 17:21:54,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:54,588 INFO L82 PathProgramCache]: Analyzing trace with hash 462594596, now seen corresponding path program 1 times [2020-09-24 17:21:54,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:54,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [518993837] [2020-09-24 17:21:54,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:54,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:54,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:54,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:54,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:56,606 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:56,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 17:21:56,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 17:21:56,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2003 [2020-09-24 17:21:56,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:56,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:21:56,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 17:21:56,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-24 17:21:56,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:56,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:56,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:56,694 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:56,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:56,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:56,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:21:56,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:56,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:56,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:56,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:56,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:56,707 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 17:21:56,708 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [518993837] [2020-09-24 17:21:56,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:21:56,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 17:21:56,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566836513] [2020-09-24 17:21:56,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 17:21:56,709 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:56,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 17:21:56,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 17:21:56,710 INFO L87 Difference]: Start difference. First operand 189 states and 192 transitions. Second operand 8 states. [2020-09-24 17:21:57,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:57,322 INFO L93 Difference]: Finished difference Result 279 states and 283 transitions. [2020-09-24 17:21:57,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 17:21:57,322 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 86 [2020-09-24 17:21:57,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:57,324 INFO L225 Difference]: With dead ends: 279 [2020-09-24 17:21:57,324 INFO L226 Difference]: Without dead ends: 277 [2020-09-24 17:21:57,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2020-09-24 17:21:57,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-09-24 17:21:57,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 182. [2020-09-24 17:21:57,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-24 17:21:57,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 185 transitions. [2020-09-24 17:21:57,333 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 185 transitions. Word has length 86 [2020-09-24 17:21:57,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:57,333 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 185 transitions. [2020-09-24 17:21:57,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 17:21:57,334 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 185 transitions. [2020-09-24 17:21:57,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-24 17:21:57,334 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:57,335 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:21:57,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 17:21:57,335 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]=== [2020-09-24 17:21:57,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:57,336 INFO L82 PathProgramCache]: Analyzing trace with hash -748130612, now seen corresponding path program 1 times [2020-09-24 17:21:57,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:57,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [840795978] [2020-09-24 17:21:57,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:57,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:57,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:57,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:57,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:59,399 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:59,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 17:21:59,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 17:21:59,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2050 [2020-09-24 17:21:59,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:59,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 17:21:59,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-24 17:21:59,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 17:21:59,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:59,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:59,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:59,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:59,549 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:59,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:59,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:59,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:21:59,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:59,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:59,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:59,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:59,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:59,559 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 17:21:59,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [840795978] [2020-09-24 17:21:59,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:21:59,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 17:21:59,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244819509] [2020-09-24 17:21:59,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 17:21:59,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:59,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 17:21:59,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 17:21:59,561 INFO L87 Difference]: Start difference. First operand 182 states and 185 transitions. Second operand 9 states. [2020-09-24 17:22:00,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:22:00,239 INFO L93 Difference]: Finished difference Result 182 states and 185 transitions. [2020-09-24 17:22:00,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 17:22:00,239 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 86 [2020-09-24 17:22:00,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:22:00,241 INFO L225 Difference]: With dead ends: 182 [2020-09-24 17:22:00,242 INFO L226 Difference]: Without dead ends: 180 [2020-09-24 17:22:00,242 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2020-09-24 17:22:00,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-09-24 17:22:00,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 169. [2020-09-24 17:22:00,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-09-24 17:22:00,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 171 transitions. [2020-09-24 17:22:00,257 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 171 transitions. Word has length 86 [2020-09-24 17:22:00,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:22:00,258 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 171 transitions. [2020-09-24 17:22:00,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 17:22:00,258 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 171 transitions. [2020-09-24 17:22:00,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-24 17:22:00,260 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:22:00,260 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:22:00,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 17:22:00,261 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]=== [2020-09-24 17:22:00,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:22:00,262 INFO L82 PathProgramCache]: Analyzing trace with hash -228867626, now seen corresponding path program 1 times [2020-09-24 17:22:00,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:22:00,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [638441941] [2020-09-24 17:22:00,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:22:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:22:00,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:22:00,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:22:00,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:22:00,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:22:00,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:22:00,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:22:01,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:22:10,221 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:22:10,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-24 17:22:10,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 17:22:10,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9944 [2020-09-24 17:22:10,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:22:10,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 17:22:10,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-24 17:22:10,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 17:22:10,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0