/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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --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-crafted/simple_array_index_value_4.i.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:50:28,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:50:28,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:50:28,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:50:28,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:50:28,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:50:28,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:50:28,777 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:50:28,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:50:28,780 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:50:28,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:50:28,783 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:50:28,783 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:50:28,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:50:28,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:50:28,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:50:28,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:50:28,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:50:28,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:50:28,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:50:28,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:50:28,796 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:50:28,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:50:28,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:50:28,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:50:28,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:50:28,803 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:50:28,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:50:28,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:50:28,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:50:28,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:50:28,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:50:28,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:50:28,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:50:28,811 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:50:28,811 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:50:28,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:50:28,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:50:28,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:50:28,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:50:28,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:50:28,815 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 21:50:28,842 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:50:28,843 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:50:28,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:50:28,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:50:28,844 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:50:28,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:50:28,845 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:50:28,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:50:28,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:50:28,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:50:28,846 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:50:28,846 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:50:28,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:50:28,846 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:50:28,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:50:28,847 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:50:28,847 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:50:28,847 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:50:28,847 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:50:28,847 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:50:28,848 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:50:28,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:50:28,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:50:28,848 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:50:28,849 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:50:28,849 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:50:28,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:50:28,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:50:28,849 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:50:28,850 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;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:50:29,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:50:29,359 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:50:29,365 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:50:29,368 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:50:29,369 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:50:29,370 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c [2020-09-24 21:50:29,459 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/17d40d079/de34b42bb45f4740a260d633fddae37d/FLAG42c2ee94f [2020-09-24 21:50:30,046 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:50:30,048 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c [2020-09-24 21:50:30,061 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/17d40d079/de34b42bb45f4740a260d633fddae37d/FLAG42c2ee94f [2020-09-24 21:50:30,345 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/17d40d079/de34b42bb45f4740a260d633fddae37d [2020-09-24 21:50:30,360 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:50:30,367 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:50:30,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:50:30,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:50:30,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:50:30,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:50:30" (1/1) ... [2020-09-24 21:50:30,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66409f6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:30, skipping insertion in model container [2020-09-24 21:50:30,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:50:30" (1/1) ... [2020-09-24 21:50:30,388 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:50:30,420 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:50:30,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:50:30,688 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:50:30,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:50:30,824 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:50:30,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:30 WrapperNode [2020-09-24 21:50:30,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:50:30,826 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:50:30,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:50:30,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:50:30,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:30" (1/1) ... [2020-09-24 21:50:30,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:30" (1/1) ... [2020-09-24 21:50:30,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:30" (1/1) ... [2020-09-24 21:50:30,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:30" (1/1) ... [2020-09-24 21:50:30,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:30" (1/1) ... [2020-09-24 21:50:30,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:30" (1/1) ... [2020-09-24 21:50:30,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:30" (1/1) ... [2020-09-24 21:50:30,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:50:30,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:50:30,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:50:30,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:50:30,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:30" (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 21:50:30,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:50:30,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:50:30,957 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 21:50:30,957 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:50:30,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:50:30,958 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 21:50:30,958 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 21:50:30,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 21:50:30,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-24 21:50:30,958 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:50:30,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:50:30,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:50:30,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:50:30,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:50:30,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:50:30,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:50:31,403 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:50:31,404 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 21:50:31,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:50:31 BoogieIcfgContainer [2020-09-24 21:50:31,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:50:31,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:50:31,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:50:31,416 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:50:31,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:50:30" (1/3) ... [2020-09-24 21:50:31,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79130c0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:50:31, skipping insertion in model container [2020-09-24 21:50:31,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:30" (2/3) ... [2020-09-24 21:50:31,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79130c0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:50:31, skipping insertion in model container [2020-09-24 21:50:31,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:50:31" (3/3) ... [2020-09-24 21:50:31,420 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i.v+nlh-reducer.c [2020-09-24 21:50:31,432 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:50:31,443 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-09-24 21:50:31,465 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-24 21:50:31,497 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:50:31,497 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:50:31,497 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:50:31,497 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:50:31,497 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:50:31,497 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:50:31,498 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:50:31,498 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:50:31,522 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2020-09-24 21:50:31,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 21:50:31,530 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:50:31,531 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] [2020-09-24 21:50:31,532 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:50:31,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:50:31,538 INFO L82 PathProgramCache]: Analyzing trace with hash 477414535, now seen corresponding path program 1 times [2020-09-24 21:50:31,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:50:31,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1449600135] [2020-09-24 21:50:31,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:50:31,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:31,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:31,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:32,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:32,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 21:50:32,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:50:32,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 337 [2020-09-24 21:50:32,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:32,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:50:32,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 21:50:32,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:50:32,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:50:32,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:50:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:32,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:32,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:32,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:50:32,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:50:32,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 21:50:32,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:32,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:50:32,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:50:32,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:50:32,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:50:32,255 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 21:50:32,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1449600135] [2020-09-24 21:50:32,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:50:32,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 21:50:32,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702127066] [2020-09-24 21:50:32,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 21:50:32,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:50:32,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 21:50:32,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 21:50:32,287 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 4 states. [2020-09-24 21:50:32,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:50:32,664 INFO L93 Difference]: Finished difference Result 210 states and 236 transitions. [2020-09-24 21:50:32,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 21:50:32,666 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-09-24 21:50:32,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:50:32,679 INFO L225 Difference]: With dead ends: 210 [2020-09-24 21:50:32,680 INFO L226 Difference]: Without dead ends: 110 [2020-09-24 21:50:32,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 21:50:32,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-09-24 21:50:32,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 76. [2020-09-24 21:50:32,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-24 21:50:32,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 81 transitions. [2020-09-24 21:50:32,755 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 81 transitions. Word has length 30 [2020-09-24 21:50:32,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:50:32,756 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 81 transitions. [2020-09-24 21:50:32,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 21:50:32,756 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions. [2020-09-24 21:50:32,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-24 21:50:32,758 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:50:32,758 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] [2020-09-24 21:50:32,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:50:32,759 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:50:32,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:50:32,759 INFO L82 PathProgramCache]: Analyzing trace with hash 572189094, now seen corresponding path program 1 times [2020-09-24 21:50:32,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:50:32,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1197824433] [2020-09-24 21:50:32,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:50:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:32,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:32,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:32,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 21:50:32,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:50:32,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-24 21:50:32,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:32,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:50:32,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 21:50:32,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:50:32,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:50:32,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:50:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:32,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:32,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:32,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:50:32,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:50:32,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:50:32,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:32,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:50:32,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:50:32,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:50:32,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:50:32,980 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 21:50:32,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1197824433] [2020-09-24 21:50:32,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:50:32,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 21:50:32,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189100420] [2020-09-24 21:50:32,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 21:50:32,983 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:50:32,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 21:50:32,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 21:50:32,984 INFO L87 Difference]: Start difference. First operand 76 states and 81 transitions. Second operand 4 states. [2020-09-24 21:50:33,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:50:33,187 INFO L93 Difference]: Finished difference Result 159 states and 167 transitions. [2020-09-24 21:50:33,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 21:50:33,188 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-09-24 21:50:33,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:50:33,190 INFO L225 Difference]: With dead ends: 159 [2020-09-24 21:50:33,190 INFO L226 Difference]: Without dead ends: 108 [2020-09-24 21:50:33,192 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 21:50:33,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-09-24 21:50:33,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 75. [2020-09-24 21:50:33,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-24 21:50:33,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 79 transitions. [2020-09-24 21:50:33,203 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 79 transitions. Word has length 31 [2020-09-24 21:50:33,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:50:33,203 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 79 transitions. [2020-09-24 21:50:33,204 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 21:50:33,204 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 79 transitions. [2020-09-24 21:50:33,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-24 21:50:33,205 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:50:33,205 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] [2020-09-24 21:50:33,205 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:50:33,206 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:50:33,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:50:33,206 INFO L82 PathProgramCache]: Analyzing trace with hash -921386779, now seen corresponding path program 1 times [2020-09-24 21:50:33,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:50:33,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [173800577] [2020-09-24 21:50:33,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:50:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:33,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:33,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:33,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 21:50:33,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:50:33,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 21:50:33,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:33,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:50:33,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-24 21:50:33,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:50:33,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:50:33,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:50:33,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:33,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:33,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:33,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:50:33,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:50:33,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:50:33,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:33,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:50:33,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:50:33,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:50:33,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:50:33,390 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 21:50:33,390 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [173800577] [2020-09-24 21:50:33,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:50:33,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 21:50:33,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574991327] [2020-09-24 21:50:33,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 21:50:33,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:50:33,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 21:50:33,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 21:50:33,393 INFO L87 Difference]: Start difference. First operand 75 states and 79 transitions. Second operand 6 states. [2020-09-24 21:50:33,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:50:33,600 INFO L93 Difference]: Finished difference Result 93 states and 97 transitions. [2020-09-24 21:50:33,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:50:33,600 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-09-24 21:50:33,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:50:33,602 INFO L225 Difference]: With dead ends: 93 [2020-09-24 21:50:33,602 INFO L226 Difference]: Without dead ends: 91 [2020-09-24 21:50:33,603 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:50:33,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-24 21:50:33,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 73. [2020-09-24 21:50:33,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-24 21:50:33,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions. [2020-09-24 21:50:33,612 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 31 [2020-09-24 21:50:33,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:50:33,613 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 77 transitions. [2020-09-24 21:50:33,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 21:50:33,613 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2020-09-24 21:50:33,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 21:50:33,614 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:50:33,614 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] [2020-09-24 21:50:33,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:50:33,615 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:50:33,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:50:33,616 INFO L82 PathProgramCache]: Analyzing trace with hash -223412704, now seen corresponding path program 1 times [2020-09-24 21:50:33,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:50:33,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546440393] [2020-09-24 21:50:33,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:50:33,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:33,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:33,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:33,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 21:50:33,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:50:33,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-24 21:50:33,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:33,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:50:33,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 21:50:33,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:50:33,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:50:33,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:50:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:33,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:33,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:33,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:50:33,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:50:33,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:50:33,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:33,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:50:33,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:50:33,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:50:33,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:50:33,828 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 21:50:33,828 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546440393] [2020-09-24 21:50:33,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:50:33,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 21:50:33,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060807943] [2020-09-24 21:50:33,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 21:50:33,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:50:33,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 21:50:33,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 21:50:33,831 INFO L87 Difference]: Start difference. First operand 73 states and 77 transitions. Second operand 4 states. [2020-09-24 21:50:33,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:50:33,999 INFO L93 Difference]: Finished difference Result 101 states and 105 transitions. [2020-09-24 21:50:33,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 21:50:33,999 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-09-24 21:50:34,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:50:34,001 INFO L225 Difference]: With dead ends: 101 [2020-09-24 21:50:34,001 INFO L226 Difference]: Without dead ends: 84 [2020-09-24 21:50:34,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 21:50:34,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-09-24 21:50:34,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 73. [2020-09-24 21:50:34,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-24 21:50:34,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 76 transitions. [2020-09-24 21:50:34,009 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 76 transitions. Word has length 33 [2020-09-24 21:50:34,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:50:34,010 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 76 transitions. [2020-09-24 21:50:34,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 21:50:34,010 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 76 transitions. [2020-09-24 21:50:34,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-24 21:50:34,012 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:50:34,012 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] [2020-09-24 21:50:34,012 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:50:34,012 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:50:34,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:50:34,013 INFO L82 PathProgramCache]: Analyzing trace with hash 276122014, now seen corresponding path program 1 times [2020-09-24 21:50:34,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:50:34,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [549222154] [2020-09-24 21:50:34,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:50:34,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:34,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:34,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:34,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:34,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:34,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:34,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-24 21:50:34,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:50:34,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 949 [2020-09-24 21:50:34,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:34,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:50:34,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 21:50:34,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 21:50:34,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:50:35,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:50:35,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:35,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:35,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:35,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:50:35,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:50:35,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:50:35,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:35,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:50:35,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:50:35,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:50:35,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:50:35,100 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 21:50:35,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [549222154] [2020-09-24 21:50:35,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:50:35,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 21:50:35,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884881241] [2020-09-24 21:50:35,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 21:50:35,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:50:35,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 21:50:35,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 21:50:35,102 INFO L87 Difference]: Start difference. First operand 73 states and 76 transitions. Second operand 6 states. [2020-09-24 21:50:35,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:50:35,385 INFO L93 Difference]: Finished difference Result 181 states and 189 transitions. [2020-09-24 21:50:35,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:50:35,385 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-09-24 21:50:35,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:50:35,387 INFO L225 Difference]: With dead ends: 181 [2020-09-24 21:50:35,387 INFO L226 Difference]: Without dead ends: 139 [2020-09-24 21:50:35,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:50:35,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-09-24 21:50:35,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 87. [2020-09-24 21:50:35,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-24 21:50:35,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2020-09-24 21:50:35,398 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 52 [2020-09-24 21:50:35,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:50:35,398 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2020-09-24 21:50:35,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 21:50:35,399 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2020-09-24 21:50:35,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-24 21:50:35,400 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:50:35,400 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 21:50:35,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 21:50:35,401 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:50:35,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:50:35,401 INFO L82 PathProgramCache]: Analyzing trace with hash -94524522, now seen corresponding path program 1 times [2020-09-24 21:50:35,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:50:35,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1303904127] [2020-09-24 21:50:35,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:50:35,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:35,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:35,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:35,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 21:50:35,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:50:35,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-24 21:50:35,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:35,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:50:35,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-24 21:50:35,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:50:35,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:50:35,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:50:35,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:35,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:35,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:35,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:50:35,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:50:35,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:50:35,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:35,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:50:35,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:50:35,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:50:35,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:50:35,625 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 21:50:35,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1303904127] [2020-09-24 21:50:35,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:50:35,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 21:50:35,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244578247] [2020-09-24 21:50:35,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 21:50:35,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:50:35,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 21:50:35,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 21:50:35,628 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand 6 states. [2020-09-24 21:50:35,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:50:35,865 INFO L93 Difference]: Finished difference Result 135 states and 142 transitions. [2020-09-24 21:50:35,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 21:50:35,866 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2020-09-24 21:50:35,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:50:35,867 INFO L225 Difference]: With dead ends: 135 [2020-09-24 21:50:35,867 INFO L226 Difference]: Without dead ends: 133 [2020-09-24 21:50:35,868 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:50:35,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-09-24 21:50:35,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 92. [2020-09-24 21:50:35,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-09-24 21:50:35,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 96 transitions. [2020-09-24 21:50:35,877 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 96 transitions. Word has length 53 [2020-09-24 21:50:35,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:50:35,877 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 96 transitions. [2020-09-24 21:50:35,877 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 21:50:35,878 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 96 transitions. [2020-09-24 21:50:35,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-24 21:50:35,879 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:50:35,879 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 21:50:35,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 21:50:35,879 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:50:35,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:50:35,880 INFO L82 PathProgramCache]: Analyzing trace with hash 893991191, now seen corresponding path program 1 times [2020-09-24 21:50:35,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:50:35,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1783070114] [2020-09-24 21:50:35,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:50:35,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:35,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:35,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:36,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:36,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 21:50:36,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:50:36,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-09-24 21:50:36,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:36,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:50:36,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 21:50:36,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 21:50:36,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:50:36,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:50:36,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:36,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:36,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:36,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:50:36,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:50:36,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:50:36,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:36,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:50:36,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:50:36,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:50:36,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:50:36,264 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 21:50:36,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1783070114] [2020-09-24 21:50:36,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:50:36,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 21:50:36,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995824845] [2020-09-24 21:50:36,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 21:50:36,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:50:36,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 21:50:36,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 21:50:36,266 INFO L87 Difference]: Start difference. First operand 92 states and 96 transitions. Second operand 6 states. [2020-09-24 21:50:38,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:50:38,624 INFO L93 Difference]: Finished difference Result 169 states and 176 transitions. [2020-09-24 21:50:38,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:50:38,625 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2020-09-24 21:50:38,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:50:38,626 INFO L225 Difference]: With dead ends: 169 [2020-09-24 21:50:38,626 INFO L226 Difference]: Without dead ends: 122 [2020-09-24 21:50:38,627 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:50:38,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-09-24 21:50:38,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 92. [2020-09-24 21:50:38,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-09-24 21:50:38,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 95 transitions. [2020-09-24 21:50:38,635 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 95 transitions. Word has length 53 [2020-09-24 21:50:38,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:50:38,635 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 95 transitions. [2020-09-24 21:50:38,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 21:50:38,636 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 95 transitions. [2020-09-24 21:50:38,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-24 21:50:38,637 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:50:38,637 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] [2020-09-24 21:50:38,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 21:50:38,638 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:50:38,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:50:38,638 INFO L82 PathProgramCache]: Analyzing trace with hash -2013372873, now seen corresponding path program 1 times [2020-09-24 21:50:38,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:50:38,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1062947381] [2020-09-24 21:50:38,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:50:38,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:38,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:39,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:40,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:40,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-24 21:50:40,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:50:40,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1540 [2020-09-24 21:50:40,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:40,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:50:40,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-24 21:50:40,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 21:50:40,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:50:41,291 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2020-09-24 21:50:42,192 WARN L193 SmtUtils]: Spent 843.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 77 [2020-09-24 21:50:50,147 WARN L193 SmtUtils]: Spent 7.88 s on a formula simplification. DAG size of input: 321 DAG size of output: 75 [2020-09-24 21:50:55,185 WARN L193 SmtUtils]: Spent 4.97 s on a formula simplification. DAG size of input: 237 DAG size of output: 59 [2020-09-24 21:50:57,936 WARN L193 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 251 DAG size of output: 60 [2020-09-24 21:50:58,098 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 37 [2020-09-24 21:50:58,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:50:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:58,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:58,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:58,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:50:58,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:50:58,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:50:58,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:58,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:50:58,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:50:58,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:50:58,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:50:58,369 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 21:50:58,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1062947381] [2020-09-24 21:50:58,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:50:58,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 21:50:58,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266159898] [2020-09-24 21:50:58,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 21:50:58,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:50:58,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 21:50:58,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-09-24 21:50:58,372 INFO L87 Difference]: Start difference. First operand 92 states and 95 transitions. Second operand 14 states. [2020-09-24 21:50:58,791 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-09-24 21:50:59,349 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2020-09-24 21:50:59,650 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2020-09-24 21:51:04,212 WARN L193 SmtUtils]: Spent 2.18 s on a formula simplification that was a NOOP. DAG size: 74 [2020-09-24 21:51:06,466 WARN L193 SmtUtils]: Spent 2.20 s on a formula simplification that was a NOOP. DAG size: 85 [2020-09-24 21:51:08,735 WARN L193 SmtUtils]: Spent 2.20 s on a formula simplification that was a NOOP. DAG size: 89 [2020-09-24 21:51:11,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:51:11,264 INFO L93 Difference]: Finished difference Result 110 states and 113 transitions. [2020-09-24 21:51:11,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 21:51:11,266 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 55 [2020-09-24 21:51:11,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:51:11,268 INFO L225 Difference]: With dead ends: 110 [2020-09-24 21:51:11,268 INFO L226 Difference]: Without dead ends: 108 [2020-09-24 21:51:11,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 25.4s TimeCoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2020-09-24 21:51:11,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-09-24 21:51:11,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 102. [2020-09-24 21:51:11,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-09-24 21:51:11,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 105 transitions. [2020-09-24 21:51:11,277 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 105 transitions. Word has length 55 [2020-09-24 21:51:11,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:51:11,278 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 105 transitions. [2020-09-24 21:51:11,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 21:51:11,278 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 105 transitions. [2020-09-24 21:51:11,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 21:51:11,280 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:51:11,280 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:51:11,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 21:51:11,281 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:51:11,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:51:11,281 INFO L82 PathProgramCache]: Analyzing trace with hash 511170824, now seen corresponding path program 1 times [2020-09-24 21:51:11,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:51:11,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [130424186] [2020-09-24 21:51:11,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:51:11,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:11,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:11,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:12,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:16,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:16,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 21:51:16,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:51:16,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 21:51:16,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:16,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:51:16,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-24 21:51:16,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 21:51:16,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:51:17,322 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 18 [2020-09-24 21:51:24,819 WARN L193 SmtUtils]: Spent 5.81 s on a formula simplification. DAG size of input: 149 DAG size of output: 43