/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_o200.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:55:46,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:55:46,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:55:46,765 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:55:46,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:55:46,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:55:46,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:55:46,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:55:46,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:55:46,790 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:55:46,791 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:55:46,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:55:46,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:55:46,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:55:46,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:55:46,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:55:46,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:55:46,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:55:46,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:55:46,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:55:46,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:55:46,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:55:46,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:55:46,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:55:46,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:55:46,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:55:46,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:55:46,835 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:55:46,836 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:55:46,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:55:46,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:55:46,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:55:46,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:55:46,841 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:55:46,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:55:46,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:55:46,844 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:55:46,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:55:46,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:55:46,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:55:46,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:55:46,848 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 [2020-09-25 08:55:46,895 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:55:46,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:55:46,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:55:46,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:55:46,899 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:55:46,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:55:46,899 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:55:46,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:55:46,900 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:55:46,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:55:46,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:55:46,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:55:46,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:55:46,902 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:55:46,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:55:46,902 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:55:46,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:55:46,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:55:46,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:55:46,903 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:55:46,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:55:46,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:55:46,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:55:46,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:55:46,904 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:55:46,904 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:55:46,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:55:46,905 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:55:46,905 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:55:46,905 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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:55:47,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:55:47,372 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:55:47,378 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:55:47,381 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:55:47,382 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:55:47,383 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_o200.c [2020-09-25 08:55:47,468 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f18b90a2/a20ae3c1a7ab481ab5918f98ce27299f/FLAG9e3da8eb5 [2020-09-25 08:55:48,025 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:55:48,026 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_o200.c [2020-09-25 08:55:48,034 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f18b90a2/a20ae3c1a7ab481ab5918f98ce27299f/FLAG9e3da8eb5 [2020-09-25 08:55:48,385 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f18b90a2/a20ae3c1a7ab481ab5918f98ce27299f [2020-09-25 08:55:48,400 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:55:48,405 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:55:48,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:55:48,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:55:48,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:55:48,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:55:48" (1/1) ... [2020-09-25 08:55:48,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43581d75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:55:48, skipping insertion in model container [2020-09-25 08:55:48,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:55:48" (1/1) ... [2020-09-25 08:55:48,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:55:48,449 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:55:48,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:55:48,682 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:55:48,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:55:48,712 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:55:48,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:55:48 WrapperNode [2020-09-25 08:55:48,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:55:48,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:55:48,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:55:48,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:55:48,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:55:48" (1/1) ... [2020-09-25 08:55:48,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:55:48" (1/1) ... [2020-09-25 08:55:48,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:55:48" (1/1) ... [2020-09-25 08:55:48,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:55:48" (1/1) ... [2020-09-25 08:55:48,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:55:48" (1/1) ... [2020-09-25 08:55:48,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:55:48" (1/1) ... [2020-09-25 08:55:48,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:55:48" (1/1) ... [2020-09-25 08:55:48,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:55:48,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:55:48,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:55:48,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:55:48,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:55:48" (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 [2020-09-25 08:55:48,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:55:48,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:55:48,922 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-25 08:55:48,922 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:55:48,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 08:55:48,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:55:48,922 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-25 08:55:48,922 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:55:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:55:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:55:49,121 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:55:49,121 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 08:55:49,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:55:49 BoogieIcfgContainer [2020-09-25 08:55:49,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:55:49,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:55:49,137 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:55:49,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:55:49,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:55:48" (1/3) ... [2020-09-25 08:55:49,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b68aa9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:55:49, skipping insertion in model container [2020-09-25 08:55:49,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:55:48" (2/3) ... [2020-09-25 08:55:49,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b68aa9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:55:49, skipping insertion in model container [2020-09-25 08:55:49,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:55:49" (3/3) ... [2020-09-25 08:55:49,147 INFO L109 eAbstractionObserver]: Analyzing ICFG id_o200.c [2020-09-25 08:55:49,165 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:55:49,193 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:55:49,250 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:55:49,290 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:55:49,290 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:55:49,290 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:55:49,290 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:55:49,291 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:55:49,291 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:55:49,291 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:55:49,291 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:55:49,316 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-09-25 08:55:49,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 08:55:49,325 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:55:49,326 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:55:49,327 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:55:49,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:55:49,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1651991454, now seen corresponding path program 1 times [2020-09-25 08:55:49,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:55:49,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [37098509] [2020-09-25 08:55:49,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:55:49,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:49,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:49,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:49,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:55:49,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:49,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 08:55:49,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:49,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:49,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:55:49,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 08:55:49,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:55:49,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:55:49,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:55:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:49,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:49,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:49,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:55:49,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:49,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:55:49,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:49,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:49,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:55:49,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:49,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:55:49,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:49,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 08:55:49,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:49,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:49,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:49,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:55:49,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:49,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 08:55:49,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:49,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:49,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:55:49,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:49,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:55:49,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:49,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:55:49,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [37098509] [2020-09-25 08:55:49,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:55:49,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:55:49,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906352420] [2020-09-25 08:55:49,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:55:49,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:55:49,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:55:49,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:55:49,773 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2020-09-25 08:55:49,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:55:49,866 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-25 08:55:49,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 08:55:49,868 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 08:55:49,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:55:49,881 INFO L225 Difference]: With dead ends: 37 [2020-09-25 08:55:49,882 INFO L226 Difference]: Without dead ends: 22 [2020-09-25 08:55:49,887 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:55:49,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-09-25 08:55:49,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-09-25 08:55:49,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-09-25 08:55:49,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-09-25 08:55:49,941 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 16 [2020-09-25 08:55:49,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:55:49,942 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-09-25 08:55:49,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:55:49,942 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-09-25 08:55:49,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-25 08:55:49,945 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:55:49,945 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:55:49,945 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:55:49,946 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:55:49,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:55:49,946 INFO L82 PathProgramCache]: Analyzing trace with hash 189324707, now seen corresponding path program 1 times [2020-09-25 08:55:49,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:55:49,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2007563237] [2020-09-25 08:55:49,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:55:49,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:49,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:50,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:50,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 08:55:50,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:50,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-09-25 08:55:50,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:50,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:50,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:55:50,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 08:55:50,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 08:55:50,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:50,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:55:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:50,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:50,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:50,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:55:50,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:50,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:55:50,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:50,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:50,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:55:50,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:50,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:55:50,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:50,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 08:55:50,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:50,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:50,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:50,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 08:55:50,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:50,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-25 08:55:50,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:50,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:50,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:55:50,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:50,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 08:55:50,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:50,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:55:50,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:50,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:50,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:50,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:55:50,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:50,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 08:55:50,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:50,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:50,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:55:50,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:50,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:55:50,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:50,478 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 08:55:50,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2007563237] [2020-09-25 08:55:50,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:55:50,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 08:55:50,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950086102] [2020-09-25 08:55:50,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:55:50,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:55:50,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:55:50,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:55:50,483 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 7 states. [2020-09-25 08:55:50,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:55:50,558 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-09-25 08:55:50,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 08:55:50,559 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-09-25 08:55:50,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:55:50,560 INFO L225 Difference]: With dead ends: 31 [2020-09-25 08:55:50,560 INFO L226 Difference]: Without dead ends: 26 [2020-09-25 08:55:50,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:55:50,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-25 08:55:50,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-09-25 08:55:50,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-09-25 08:55:50,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-09-25 08:55:50,570 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 23 [2020-09-25 08:55:50,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:55:50,570 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-09-25 08:55:50,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:55:50,571 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-09-25 08:55:50,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-25 08:55:50,572 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:55:50,572 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:55:50,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:55:50,573 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:55:50,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:55:50,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1416732684, now seen corresponding path program 2 times [2020-09-25 08:55:50,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:55:50,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2123719776] [2020-09-25 08:55:50,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:55:50,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:50,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:50,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:50,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 08:55:50,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:50,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 266 [2020-09-25 08:55:50,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:50,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:50,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:55:50,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-25 08:55:50,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 08:55:50,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:50,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:55:50,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:50,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:50,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:50,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:55:50,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:50,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:55:50,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:50,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:50,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:55:50,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:50,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:55:50,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:50,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 08:55:50,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:50,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:51,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:51,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 08:55:51,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:51,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-25 08:55:51,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:51,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:51,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:55:51,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:51,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 08:55:51,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:51,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:55:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:51,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:51,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:51,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 08:55:51,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:51,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 08:55:51,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:51,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:51,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:55:51,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:51,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 08:55:51,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 08:55:51,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:55:51,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:51,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:51,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:51,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:55:51,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:51,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 08:55:51,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:51,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:51,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:55:51,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:51,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:55:51,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:51,327 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 08:55:51,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2123719776] [2020-09-25 08:55:51,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:55:51,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 08:55:51,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722246301] [2020-09-25 08:55:51,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:55:51,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:55:51,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:55:51,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:55:51,330 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 9 states. [2020-09-25 08:55:51,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:55:51,429 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2020-09-25 08:55:51,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 08:55:51,430 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-09-25 08:55:51,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:55:51,432 INFO L225 Difference]: With dead ends: 35 [2020-09-25 08:55:51,432 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 08:55:51,433 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-09-25 08:55:51,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 08:55:51,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-25 08:55:51,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-25 08:55:51,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-09-25 08:55:51,440 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 30 [2020-09-25 08:55:51,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:55:51,440 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-09-25 08:55:51,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:55:51,441 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-09-25 08:55:51,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-25 08:55:51,442 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:55:51,442 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:55:51,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:55:51,443 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:55:51,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:55:51,443 INFO L82 PathProgramCache]: Analyzing trace with hash -209476043, now seen corresponding path program 3 times [2020-09-25 08:55:51,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:55:51,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [808722688] [2020-09-25 08:55:51,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:55:51,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:51,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:51,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:51,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-25 08:55:51,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:51,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-09-25 08:55:51,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:51,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:51,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 08:55:51,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-25 08:55:51,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 08:55:51,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:51,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:55:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:51,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:51,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:51,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:55:51,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:51,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:55:51,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:51,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:51,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:55:51,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:51,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:55:51,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:51,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 08:55:51,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:51,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:51,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:51,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 08:55:51,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:51,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-09-25 08:55:51,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:51,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:51,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 08:55:51,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:51,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 08:55:51,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:51,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:55:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:51,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:52,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:52,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 08:55:52,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:52,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 08:55:52,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:52,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:52,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:55:52,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:52,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 08:55:52,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:52,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:55:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:52,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:52,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:52,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 08:55:52,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:52,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 08:55:52,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:52,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:52,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:55:52,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:52,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 08:55:52,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:52,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:55:52,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:52,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:52,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:52,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:55:52,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:52,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 08:55:52,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:52,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:52,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:55:52,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:52,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:55:52,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:52,243 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-25 08:55:52,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [808722688] [2020-09-25 08:55:52,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:55:52,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 08:55:52,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766659185] [2020-09-25 08:55:52,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 08:55:52,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:55:52,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 08:55:52,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:55:52,246 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 11 states. [2020-09-25 08:55:52,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:55:52,387 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-25 08:55:52,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 08:55:52,388 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2020-09-25 08:55:52,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:55:52,390 INFO L225 Difference]: With dead ends: 39 [2020-09-25 08:55:52,390 INFO L226 Difference]: Without dead ends: 34 [2020-09-25 08:55:52,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-09-25 08:55:52,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-09-25 08:55:52,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-09-25 08:55:52,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-09-25 08:55:52,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2020-09-25 08:55:52,398 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 37 [2020-09-25 08:55:52,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:55:52,398 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2020-09-25 08:55:52,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 08:55:52,398 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2020-09-25 08:55:52,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-25 08:55:52,400 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:55:52,400 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:55:52,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:55:52,401 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:55:52,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:55:52,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1007399302, now seen corresponding path program 4 times [2020-09-25 08:55:52,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:55:52,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [234435183] [2020-09-25 08:55:52,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:55:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:52,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:52,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:52,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 08:55:52,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:52,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-09-25 08:55:52,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:52,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:52,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 08:55:52,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-25 08:55:52,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 08:55:52,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:52,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:55:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:52,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:52,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:52,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:55:52,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:52,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:55:52,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:52,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:52,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:55:52,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:52,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:55:52,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:52,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 08:55:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:52,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:53,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:53,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 08:55:53,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:53,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-25 08:55:53,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:53,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:53,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 08:55:53,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:53,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 08:55:53,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:53,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:55:53,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:53,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:53,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:53,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 08:55:53,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:53,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-09-25 08:55:53,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:53,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:53,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 08:55:53,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:53,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 08:55:53,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:53,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:55:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:53,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:53,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:53,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 08:55:53,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:53,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-25 08:55:53,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:53,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:53,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:55:53,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:53,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 08:55:53,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:53,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:55:53,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:53,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:53,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:53,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 08:55:53,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:53,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 08:55:53,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:53,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:53,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:55:53,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:53,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 08:55:53,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:55:53,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:55:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:53,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:53,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:53,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:55:53,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:53,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 08:55:53,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:53,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:53,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:55:53,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:53,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:55:53,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:53,790 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-25 08:55:53,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [234435183] [2020-09-25 08:55:53,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:55:53,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 08:55:53,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451537875] [2020-09-25 08:55:53,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 08:55:53,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:55:53,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 08:55:53,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-09-25 08:55:53,793 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 13 states. [2020-09-25 08:55:54,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:55:54,089 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-09-25 08:55:54,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 08:55:54,090 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-09-25 08:55:54,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:55:54,093 INFO L225 Difference]: With dead ends: 43 [2020-09-25 08:55:54,093 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 08:55:54,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2020-09-25 08:55:54,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 08:55:54,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-25 08:55:54,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-25 08:55:54,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-25 08:55:54,113 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 44 [2020-09-25 08:55:54,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:55:54,116 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-25 08:55:54,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 08:55:54,117 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-25 08:55:54,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 08:55:54,121 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:55:54,121 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:55:54,121 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:55:54,121 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:55:54,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:55:54,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1787659065, now seen corresponding path program 5 times [2020-09-25 08:55:54,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:55:54,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685500874] [2020-09-25 08:55:54,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:55:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:54,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:54,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:54,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 08:55:54,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:54,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 448 [2020-09-25 08:55:54,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:54,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:54,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 08:55:54,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 08:55:54,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 08:55:54,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:55:54,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:55:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:54,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:54,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:54,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:55:54,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:54,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:55:54,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:54,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:54,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:55:54,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:54,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:55:54,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:54,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 08:55:54,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:54,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:54,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:54,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 08:55:54,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:54,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-09-25 08:55:54,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:54,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:54,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 08:55:54,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:54,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 08:55:54,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:55:55,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:55:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:55,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:55,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:55,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 08:55:55,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:55,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-09-25 08:55:55,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:55,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:55,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 08:55:55,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:55,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 08:55:55,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:55,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:55:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:55,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:55,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:55,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 08:55:55,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:55,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-09-25 08:55:55,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:55,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:55,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 08:55:55,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:55,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 08:55:55,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:55,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:55:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:55,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:55,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:55,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 08:55:55,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:55,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 08:55:55,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:55,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:55,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:55:55,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:55,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 08:55:55,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:55,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:55:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:55,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:55,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:55,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 08:55:55,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:55,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 08:55:55,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:55,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:55,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:55:55,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:55,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 08:55:55,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:55,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:55:55,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:55,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:55,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:55,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:55:55,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:55,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 08:55:55,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:55,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:55,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:55:55,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:55,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:55:55,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:55,896 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-25 08:55:55,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685500874] [2020-09-25 08:55:55,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:55:55,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 08:55:55,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779926975] [2020-09-25 08:55:55,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 08:55:55,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:55:55,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 08:55:55,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-09-25 08:55:55,901 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 15 states. [2020-09-25 08:55:56,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:55:56,184 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-09-25 08:55:56,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 08:55:56,185 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 51 [2020-09-25 08:55:56,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:55:56,186 INFO L225 Difference]: With dead ends: 47 [2020-09-25 08:55:56,186 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 08:55:56,187 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2020-09-25 08:55:56,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 08:55:56,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 08:55:56,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 08:55:56,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-09-25 08:55:56,193 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 51 [2020-09-25 08:55:56,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:55:56,194 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-09-25 08:55:56,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 08:55:56,194 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-09-25 08:55:56,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 08:55:56,195 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:55:56,195 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:55:56,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 08:55:56,196 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:55:56,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:55:56,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1360883432, now seen corresponding path program 6 times [2020-09-25 08:55:56,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:55:56,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [116169765] [2020-09-25 08:55:56,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:55:56,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:56,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:56,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:56,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 08:55:56,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:56,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 560 [2020-09-25 08:55:56,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:56,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:56,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 08:55:56,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-25 08:55:56,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 08:55:56,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:56,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:55:56,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:56,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:56,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:56,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:55:56,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:56,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:55:56,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:56,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:56,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:55:56,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:56,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:55:56,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:56,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 08:55:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:56,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:57,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:57,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 08:55:57,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:57,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 432 [2020-09-25 08:55:57,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:57,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:57,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 08:55:57,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:57,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 08:55:57,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:57,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:55:57,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:57,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:57,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:57,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 08:55:57,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:57,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 361 [2020-09-25 08:55:57,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:57,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:57,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 08:55:57,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:57,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 08:55:57,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:57,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:55:57,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:57,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:57,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:57,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 08:55:57,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:57,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-09-25 08:55:57,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:57,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:57,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 08:55:57,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:57,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 08:55:57,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:58,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:55:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:58,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:58,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:58,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 08:55:58,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:58,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-25 08:55:58,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:58,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:58,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 08:55:58,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:58,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 08:55:58,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:58,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:55:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:58,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:58,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:58,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 08:55:58,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:58,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 08:55:58,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:58,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:58,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:55:58,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:58,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 08:55:58,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:58,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:55:58,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:58,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:58,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:58,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 08:55:58,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:58,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 08:55:58,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:58,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:58,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:55:58,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:58,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 08:55:58,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:58,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:55:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:58,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:58,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:58,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:55:58,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:58,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 08:55:58,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:58,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:58,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:55:58,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:58,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:55:58,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:58,534 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-09-25 08:55:58,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [116169765] [2020-09-25 08:55:58,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:55:58,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 08:55:58,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137467753] [2020-09-25 08:55:58,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 08:55:58,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:55:58,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 08:55:58,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-09-25 08:55:58,558 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 17 states. [2020-09-25 08:55:58,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:55:58,867 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2020-09-25 08:55:58,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-25 08:55:58,867 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 58 [2020-09-25 08:55:58,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:55:58,871 INFO L225 Difference]: With dead ends: 51 [2020-09-25 08:55:58,871 INFO L226 Difference]: Without dead ends: 46 [2020-09-25 08:55:58,872 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2020-09-25 08:55:58,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-25 08:55:58,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-09-25 08:55:58,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-25 08:55:58,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-09-25 08:55:58,882 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 58 [2020-09-25 08:55:58,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:55:58,882 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-09-25 08:55:58,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 08:55:58,882 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-09-25 08:55:58,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-25 08:55:58,886 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:55:58,887 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:55:58,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 08:55:58,889 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:55:58,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:55:58,890 INFO L82 PathProgramCache]: Analyzing trace with hash -807968423, now seen corresponding path program 7 times [2020-09-25 08:55:58,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:55:58,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [453951264] [2020-09-25 08:55:58,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:55:58,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:58,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:59,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:59,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 08:55:59,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:59,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 682 [2020-09-25 08:55:59,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:59,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:59,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 08:55:59,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-25 08:55:59,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 08:55:59,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:59,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:55:59,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:59,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:59,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:59,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:55:59,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:59,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:55:59,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:59,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:59,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:55:59,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:59,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:55:59,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:59,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 08:55:59,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:59,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:00,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:00,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 08:56:00,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:00,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 551 [2020-09-25 08:56:00,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:00,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:00,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 08:56:00,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:00,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 08:56:00,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:00,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:00,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:00,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:00,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 08:56:00,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:00,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 412 [2020-09-25 08:56:00,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:00,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:00,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 08:56:00,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:00,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 08:56:00,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:00,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:00,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:01,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:01,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 08:56:01,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:01,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-09-25 08:56:01,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:01,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:01,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 08:56:01,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:01,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 08:56:01,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:01,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:01,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:01,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:01,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 08:56:01,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:01,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-09-25 08:56:01,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:01,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:01,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 08:56:01,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:01,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 08:56:01,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:01,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:01,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:01,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:01,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:01,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 08:56:01,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:01,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-25 08:56:01,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:01,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:01,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 08:56:01,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:01,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 08:56:01,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:01,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:01,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:01,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:01,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 08:56:01,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:01,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 08:56:01,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:01,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:01,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:56:01,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:01,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 08:56:01,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:01,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:01,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:01,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:01,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 08:56:01,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:01,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 08:56:01,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:01,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:01,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:56:01,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:01,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 08:56:01,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:01,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:01,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:01,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:01,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:01,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:56:01,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:01,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 08:56:01,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:01,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:01,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:56:01,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:01,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:56:01,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:01,814 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-09-25 08:56:01,815 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [453951264] [2020-09-25 08:56:01,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:56:01,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-25 08:56:01,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047076007] [2020-09-25 08:56:01,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-25 08:56:01,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:56:01,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-25 08:56:01,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-09-25 08:56:01,817 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 19 states. [2020-09-25 08:56:02,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:56:02,170 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-09-25 08:56:02,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 08:56:02,171 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 65 [2020-09-25 08:56:02,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:56:02,173 INFO L225 Difference]: With dead ends: 55 [2020-09-25 08:56:02,173 INFO L226 Difference]: Without dead ends: 50 [2020-09-25 08:56:02,174 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=635, Unknown=0, NotChecked=0, Total=702 [2020-09-25 08:56:02,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-25 08:56:02,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-09-25 08:56:02,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 08:56:02,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-09-25 08:56:02,180 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 65 [2020-09-25 08:56:02,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:56:02,180 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-09-25 08:56:02,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-25 08:56:02,181 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-09-25 08:56:02,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 08:56:02,183 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:56:02,183 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:56:02,184 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 08:56:02,184 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:56:02,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:56:02,185 INFO L82 PathProgramCache]: Analyzing trace with hash -705364310, now seen corresponding path program 8 times [2020-09-25 08:56:02,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:56:02,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1633786462] [2020-09-25 08:56:02,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:56:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:02,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:02,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:02,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-09-25 08:56:02,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:02,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 771 [2020-09-25 08:56:02,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:02,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:02,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 08:56:02,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 08:56:02,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 08:56:02,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:03,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:56:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:03,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:03,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:03,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:56:03,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:03,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:56:03,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:03,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:03,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:56:03,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:03,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:56:03,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:03,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 08:56:03,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:03,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:03,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:03,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 08:56:03,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:03,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 654 [2020-09-25 08:56:03,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:03,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:03,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 08:56:03,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:03,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 08:56:03,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:03,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:03,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:04,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:04,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 08:56:04,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:04,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 527 [2020-09-25 08:56:04,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:04,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:04,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 08:56:04,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:04,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 08:56:04,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:04,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:04,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:04,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:04,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:04,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 08:56:04,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:04,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-09-25 08:56:04,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:04,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:04,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 08:56:04,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:04,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 08:56:04,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:04,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:04,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:04,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:05,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:05,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 08:56:05,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:05,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-09-25 08:56:05,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:05,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:05,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 08:56:05,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:05,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 08:56:05,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:05,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:05,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:05,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:05,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:05,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 08:56:05,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:05,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-09-25 08:56:05,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:05,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:05,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 08:56:05,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:05,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 08:56:05,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:05,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:05,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:05,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:05,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 08:56:05,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:05,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-25 08:56:05,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:05,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:05,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 08:56:05,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:05,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 08:56:05,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:05,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:05,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:05,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:05,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 08:56:05,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:05,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 08:56:05,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:05,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:05,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:56:05,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:05,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 08:56:05,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:05,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:05,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:05,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:05,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 08:56:05,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:05,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 08:56:05,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:05,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:05,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:56:05,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:05,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 08:56:05,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:05,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:05,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:05,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:05,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:56:05,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:05,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 08:56:05,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:05,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:05,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:56:05,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:05,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:56:05,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:05,788 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-25 08:56:05,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1633786462] [2020-09-25 08:56:05,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:56:05,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-25 08:56:05,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816093454] [2020-09-25 08:56:05,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-25 08:56:05,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:56:05,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-25 08:56:05,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-09-25 08:56:05,791 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 21 states. [2020-09-25 08:56:06,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:56:06,189 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-25 08:56:06,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-25 08:56:06,189 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 72 [2020-09-25 08:56:06,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:56:06,192 INFO L225 Difference]: With dead ends: 59 [2020-09-25 08:56:06,192 INFO L226 Difference]: Without dead ends: 54 [2020-09-25 08:56:06,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2020-09-25 08:56:06,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-25 08:56:06,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-25 08:56:06,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 08:56:06,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-09-25 08:56:06,204 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 72 [2020-09-25 08:56:06,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:56:06,204 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-09-25 08:56:06,204 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-25 08:56:06,205 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-09-25 08:56:06,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-25 08:56:06,205 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:56:06,208 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:56:06,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 08:56:06,209 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:56:06,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:56:06,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1418439701, now seen corresponding path program 9 times [2020-09-25 08:56:06,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:56:06,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1610022578] [2020-09-25 08:56:06,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:56:06,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:06,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:07,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:07,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-25 08:56:07,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:07,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 897 [2020-09-25 08:56:07,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:07,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:07,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 08:56:07,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-25 08:56:07,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 08:56:07,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:07,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:56:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:07,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:07,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:07,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:56:07,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:07,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:56:07,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:07,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:07,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:56:07,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:07,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:56:07,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:07,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 08:56:07,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:07,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:07,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:07,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 08:56:07,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:07,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 758 [2020-09-25 08:56:07,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:07,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:07,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 08:56:07,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:07,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 08:56:07,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:07,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:07,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:08,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:08,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:08,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 08:56:08,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:08,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 571 [2020-09-25 08:56:08,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:08,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:08,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 08:56:08,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:08,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 08:56:08,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:08,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:08,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:09,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:09,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 08:56:09,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:09,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 400 [2020-09-25 08:56:09,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:09,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:09,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 08:56:09,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:09,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 08:56:09,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:09,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:09,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:09,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:09,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 08:56:09,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:09,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-09-25 08:56:09,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:09,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:09,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 08:56:09,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:09,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 08:56:09,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:09,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:09,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:09,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:09,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 08:56:09,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:09,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-09-25 08:56:09,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:09,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:09,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 08:56:09,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:09,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 08:56:09,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:09,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:09,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:09,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:09,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:09,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 08:56:09,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:09,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-25 08:56:09,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:09,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:09,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 08:56:09,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:09,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 08:56:09,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:09,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:09,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:09,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:10,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:10,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 08:56:10,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:10,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 08:56:10,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:10,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:10,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 08:56:10,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:10,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 08:56:10,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:10,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:10,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:10,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:10,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:10,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 08:56:10,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:10,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 08:56:10,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:10,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:10,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:56:10,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:10,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 08:56:10,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:10,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:10,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:10,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:10,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 08:56:10,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:10,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 08:56:10,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:10,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:10,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:56:10,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:10,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 08:56:10,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:56:10,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:10,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:10,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:10,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:56:10,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:10,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 08:56:10,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:10,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:10,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:56:10,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:10,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:56:10,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:56:10,534 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-09-25 08:56:10,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1610022578] [2020-09-25 08:56:10,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:56:10,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 08:56:10,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881450535] [2020-09-25 08:56:10,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 08:56:10,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:56:10,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 08:56:10,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-09-25 08:56:10,538 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 23 states. [2020-09-25 08:56:11,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:56:11,048 INFO L93 Difference]: Finished difference Result 63 states and 64 transitions. [2020-09-25 08:56:11,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-25 08:56:11,049 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 79 [2020-09-25 08:56:11,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:56:11,050 INFO L225 Difference]: With dead ends: 63 [2020-09-25 08:56:11,051 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 08:56:11,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=83, Invalid=973, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 08:56:11,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 08:56:11,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-25 08:56:11,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 08:56:11,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-09-25 08:56:11,058 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 79 [2020-09-25 08:56:11,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:56:11,059 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-09-25 08:56:11,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 08:56:11,059 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-09-25 08:56:11,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 08:56:11,060 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:56:11,060 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:56:11,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 08:56:11,060 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:56:11,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:56:11,061 INFO L82 PathProgramCache]: Analyzing trace with hash -182126020, now seen corresponding path program 10 times [2020-09-25 08:56:11,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:56:11,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [658689940] [2020-09-25 08:56:11,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:56:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:11,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:12,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:12,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 08:56:12,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:12,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 939 [2020-09-25 08:56:12,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:12,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:12,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 08:56:12,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-25 08:56:12,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 08:56:12,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:12,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:56:12,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:12,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:12,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:12,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:56:12,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:12,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:56:12,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:12,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:12,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:56:12,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:12,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:56:12,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:12,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 08:56:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:12,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:12,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:12,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 08:56:12,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:12,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 761 [2020-09-25 08:56:12,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:12,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:12,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 08:56:12,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:12,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 08:56:12,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:12,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:12,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:13,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:13,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 08:56:13,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:13,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 755 [2020-09-25 08:56:13,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:13,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:13,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 08:56:13,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:13,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 08:56:13,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:13,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:13,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:14,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:14,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 08:56:14,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:14,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 476 [2020-09-25 08:56:14,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:14,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:14,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 08:56:14,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:14,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 08:56:14,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:14,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:14,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:14,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:14,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 08:56:14,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:14,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-09-25 08:56:14,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:14,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:14,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 08:56:14,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:14,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 08:56:14,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:14,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:14,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:14,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:14,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:14,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 08:56:14,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:14,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-09-25 08:56:14,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:14,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:14,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 08:56:14,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:14,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 08:56:14,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:14,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:14,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:14,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:15,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:15,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 08:56:15,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:15,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-09-25 08:56:15,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:15,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:15,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 08:56:15,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:15,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 08:56:15,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:15,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:15,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:15,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:15,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 08:56:15,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:15,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-25 08:56:15,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:15,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:15,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 08:56:15,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:15,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 08:56:15,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:15,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:15,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:15,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:15,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:15,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 08:56:15,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:15,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 08:56:15,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:15,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:15,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 08:56:15,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:15,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 08:56:15,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:15,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:15,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:15,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:15,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 08:56:15,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:15,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 08:56:15,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:15,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:15,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:56:15,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:15,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 08:56:15,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:15,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:15,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:15,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:15,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:15,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 08:56:15,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:15,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 08:56:15,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:15,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:15,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:56:15,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:15,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 08:56:15,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:15,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:15,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:15,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:15,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:56:15,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:15,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:56:15,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:15,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:15,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:56:15,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:15,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:56:15,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:15,933 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-09-25 08:56:15,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [658689940] [2020-09-25 08:56:15,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:56:15,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-25 08:56:15,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564472544] [2020-09-25 08:56:15,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-25 08:56:15,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:56:15,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-25 08:56:15,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-09-25 08:56:15,936 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 25 states. [2020-09-25 08:56:16,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:56:16,610 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-09-25 08:56:16,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-25 08:56:16,611 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2020-09-25 08:56:16,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:56:16,612 INFO L225 Difference]: With dead ends: 67 [2020-09-25 08:56:16,612 INFO L226 Difference]: Without dead ends: 62 [2020-09-25 08:56:16,613 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=91, Invalid=1169, Unknown=0, NotChecked=0, Total=1260 [2020-09-25 08:56:16,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-25 08:56:16,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-09-25 08:56:16,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-25 08:56:16,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2020-09-25 08:56:16,619 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 86 [2020-09-25 08:56:16,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:56:16,620 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2020-09-25 08:56:16,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-25 08:56:16,620 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2020-09-25 08:56:16,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-25 08:56:16,621 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:56:16,621 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:56:16,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 08:56:16,621 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:56:16,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:56:16,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1527469181, now seen corresponding path program 11 times [2020-09-25 08:56:16,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:56:16,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1829748711] [2020-09-25 08:56:16,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:56:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:16,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:17,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:17,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-25 08:56:17,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:17,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1022 [2020-09-25 08:56:17,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:17,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:17,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 08:56:17,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-25 08:56:17,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 08:56:17,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:17,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:56:17,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:17,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:17,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:17,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:56:17,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:17,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:56:17,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:17,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:17,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:56:17,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:17,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:56:17,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:17,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 08:56:17,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:17,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:18,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:18,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 08:56:18,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:18,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 911 [2020-09-25 08:56:18,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:18,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:18,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 08:56:18,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:18,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 08:56:18,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:18,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:18,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:18,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:19,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:19,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 08:56:19,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:19,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 732 [2020-09-25 08:56:19,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:19,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:19,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 08:56:19,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:19,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 08:56:19,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:19,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:19,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:19,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:20,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:20,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 08:56:20,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:20,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 596 [2020-09-25 08:56:20,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:20,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:20,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 08:56:20,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:20,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 08:56:20,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:20,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:20,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:20,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:20,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 08:56:20,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:20,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 464 [2020-09-25 08:56:20,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:20,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:20,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 08:56:20,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:20,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 08:56:20,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:20,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:20,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:21,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:21,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 08:56:21,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:21,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369 [2020-09-25 08:56:21,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:21,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:21,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 08:56:21,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:21,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 08:56:21,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:21,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:21,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:21,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:21,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 08:56:21,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:21,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-09-25 08:56:21,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:21,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:21,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 08:56:21,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:21,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 08:56:21,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:21,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:21,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:21,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:21,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:21,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 08:56:21,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:21,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-25 08:56:21,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:21,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:21,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 08:56:21,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:21,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 08:56:21,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:21,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:21,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:21,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:21,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 08:56:21,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:21,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-25 08:56:21,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:21,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:21,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 08:56:21,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:21,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 08:56:21,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:21,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:21,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:21,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:22,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:22,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 08:56:22,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:22,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-25 08:56:22,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:22,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:22,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 08:56:22,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:22,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 08:56:22,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:22,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:22,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:22,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:22,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:22,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 08:56:22,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:22,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 08:56:22,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:22,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:22,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:56:22,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:22,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 08:56:22,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:22,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:22,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:22,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:22,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:22,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 08:56:22,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:22,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 08:56:22,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:22,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:22,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:56:22,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:22,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 08:56:22,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:22,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:22,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:22,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:22,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:56:22,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:22,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:56:22,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:22,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:22,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:56:22,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:22,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:56:22,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:22,447 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2020-09-25 08:56:22,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1829748711] [2020-09-25 08:56:22,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:56:22,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-09-25 08:56:22,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474680850] [2020-09-25 08:56:22,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-09-25 08:56:22,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:56:22,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-09-25 08:56:22,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-09-25 08:56:22,449 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand 27 states. [2020-09-25 08:56:23,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:56:23,277 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2020-09-25 08:56:23,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-09-25 08:56:23,277 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 93 [2020-09-25 08:56:23,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:56:23,278 INFO L225 Difference]: With dead ends: 71 [2020-09-25 08:56:23,278 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 08:56:23,279 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=99, Invalid=1383, Unknown=0, NotChecked=0, Total=1482 [2020-09-25 08:56:23,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 08:56:23,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-25 08:56:23,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-25 08:56:23,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-09-25 08:56:23,286 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 93 [2020-09-25 08:56:23,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:56:23,286 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-09-25 08:56:23,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-09-25 08:56:23,286 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-09-25 08:56:23,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-09-25 08:56:23,287 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:56:23,287 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:56:23,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 08:56:23,288 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:56:23,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:56:23,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1034648626, now seen corresponding path program 12 times [2020-09-25 08:56:23,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:56:23,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1268468981] [2020-09-25 08:56:23,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:56:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:23,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:24,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:24,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-25 08:56:24,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:24,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1311 [2020-09-25 08:56:24,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:24,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:24,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 08:56:24,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 08:56:24,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 08:56:24,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:24,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:56:24,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:24,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:24,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:24,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:56:24,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:24,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:56:24,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:24,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:24,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:56:24,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:24,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:56:24,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:24,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 08:56:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:24,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:25,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:25,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-25 08:56:25,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:25,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1126 [2020-09-25 08:56:25,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:25,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:25,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 08:56:25,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:25,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-25 08:56:25,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:25,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:25,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:25,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:27,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:27,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 08:56:27,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:27,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1346 [2020-09-25 08:56:27,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:27,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:27,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 08:56:27,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:27,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 08:56:27,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:27,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:27,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:28,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:28,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 08:56:28,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:28,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 740 [2020-09-25 08:56:28,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:28,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:28,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 08:56:28,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:28,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 08:56:28,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:28,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:28,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:28,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:28,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:28,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 08:56:28,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:28,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 598 [2020-09-25 08:56:28,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:28,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:28,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 08:56:28,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:28,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 08:56:28,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:28,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:28,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:29,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:29,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 08:56:29,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:29,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 532 [2020-09-25 08:56:29,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:29,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:29,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 08:56:29,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:29,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 08:56:29,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:29,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:29,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:29,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:29,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:29,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 08:56:29,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:29,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 463 [2020-09-25 08:56:29,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:29,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:29,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 08:56:29,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:29,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 08:56:29,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:29,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:29,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:30,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:30,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 08:56:30,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:30,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-09-25 08:56:30,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:30,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:30,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 08:56:30,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:30,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 08:56:30,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:30,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:30,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:30,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:30,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:30,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 08:56:30,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:30,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-09-25 08:56:30,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:30,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:30,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 08:56:30,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:30,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 08:56:30,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:30,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:30,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:30,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:30,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 08:56:30,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:30,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 08:56:30,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:30,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:30,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 08:56:30,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:30,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 08:56:30,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:30,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:30,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:30,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:30,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 08:56:30,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:30,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 08:56:30,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:30,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:30,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 08:56:30,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:30,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 08:56:30,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:30,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:30,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:30,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:30,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 08:56:30,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:30,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 08:56:30,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:30,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:30,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:56:30,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:30,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 08:56:30,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:30,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:30,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:30,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:31,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:31,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 08:56:31,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:31,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 08:56:31,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:31,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:31,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:56:31,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:31,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 08:56:31,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:31,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:31,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:31,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:31,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:31,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:56:31,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:31,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:56:31,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:31,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:31,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:56:31,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:31,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:56:31,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:31,212 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-09-25 08:56:31,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1268468981] [2020-09-25 08:56:31,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:56:31,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-09-25 08:56:31,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678116419] [2020-09-25 08:56:31,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-09-25 08:56:31,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:56:31,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-09-25 08:56:31,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2020-09-25 08:56:31,214 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 29 states. [2020-09-25 08:56:32,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:56:32,150 INFO L93 Difference]: Finished difference Result 75 states and 76 transitions. [2020-09-25 08:56:32,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-09-25 08:56:32,150 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 100 [2020-09-25 08:56:32,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:56:32,152 INFO L225 Difference]: With dead ends: 75 [2020-09-25 08:56:32,152 INFO L226 Difference]: Without dead ends: 70 [2020-09-25 08:56:32,154 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=107, Invalid=1615, Unknown=0, NotChecked=0, Total=1722 [2020-09-25 08:56:32,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-25 08:56:32,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-09-25 08:56:32,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-25 08:56:32,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2020-09-25 08:56:32,160 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 100 [2020-09-25 08:56:32,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:56:32,160 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2020-09-25 08:56:32,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-09-25 08:56:32,160 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2020-09-25 08:56:32,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-25 08:56:32,161 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:56:32,161 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:56:32,161 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 08:56:32,162 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:56:32,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:56:32,162 INFO L82 PathProgramCache]: Analyzing trace with hash 996041487, now seen corresponding path program 13 times [2020-09-25 08:56:32,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:56:32,163 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804374973] [2020-09-25 08:56:32,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:56:32,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:32,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:33,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:33,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 08:56:33,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:33,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1446 [2020-09-25 08:56:33,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:33,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:33,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-25 08:56:33,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-25 08:56:33,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 08:56:33,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:33,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:56:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:33,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:33,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:33,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:56:33,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:33,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:56:33,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:33,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:33,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:56:33,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:33,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:56:33,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:33,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 08:56:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:33,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:34,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:34,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-25 08:56:34,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:34,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1305 [2020-09-25 08:56:34,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:34,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:34,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 08:56:34,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:34,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-25 08:56:34,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:35,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:35,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:35,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:36,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:36,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-25 08:56:36,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:36,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1129 [2020-09-25 08:56:36,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:36,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:36,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 08:56:36,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:36,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-25 08:56:36,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:36,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:36,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:36,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:37,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:37,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 08:56:37,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:37,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 892 [2020-09-25 08:56:37,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:37,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:37,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 08:56:37,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:37,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 08:56:37,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 08:56:37,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:37,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:37,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:37,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 08:56:37,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:37,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 735 [2020-09-25 08:56:37,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:37,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:37,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 08:56:37,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:37,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 08:56:37,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:37,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:38,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:38,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:38,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 08:56:38,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:38,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 579 [2020-09-25 08:56:38,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:38,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:38,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 08:56:38,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:38,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 08:56:38,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:38,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:38,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:39,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:39,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 08:56:39,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:39,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 456 [2020-09-25 08:56:39,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:39,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:39,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 08:56:39,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:39,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 08:56:39,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:39,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:39,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:39,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:39,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 08:56:39,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:39,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 353 [2020-09-25 08:56:39,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:39,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:39,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 08:56:39,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:39,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 08:56:39,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:39,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:39,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:39,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:39,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 08:56:39,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:39,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-09-25 08:56:39,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:39,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:39,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 08:56:39,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:39,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 08:56:39,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:39,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:39,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:40,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:40,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 08:56:40,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:40,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-09-25 08:56:40,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:40,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:40,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 08:56:40,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:40,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 08:56:40,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:40,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:40,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:40,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:40,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:40,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 08:56:40,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:40,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-25 08:56:40,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:40,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:40,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 08:56:40,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:40,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 08:56:40,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:40,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:40,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:40,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:40,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 08:56:40,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:40,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 08:56:40,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:40,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:40,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 08:56:40,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:40,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 08:56:40,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:40,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:40,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:40,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:40,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 08:56:40,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:40,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 08:56:40,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:40,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:40,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:56:40,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:40,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 08:56:40,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:40,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:40,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:40,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:40,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 08:56:40,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:40,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 08:56:40,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:40,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:40,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:56:40,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:40,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 08:56:40,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:40,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:56:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:40,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:40,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:40,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:56:40,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:40,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:56:40,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:40,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:40,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:56:40,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:40,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:56:40,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:40,962 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2020-09-25 08:56:40,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804374973] [2020-09-25 08:56:40,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:56:40,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-09-25 08:56:40,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260324529] [2020-09-25 08:56:40,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-09-25 08:56:40,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:56:40,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-09-25 08:56:40,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2020-09-25 08:56:40,964 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand 31 states. [2020-09-25 08:56:42,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:56:42,071 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-25 08:56:42,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-09-25 08:56:42,072 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 107 [2020-09-25 08:56:42,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:56:42,073 INFO L225 Difference]: With dead ends: 79 [2020-09-25 08:56:42,073 INFO L226 Difference]: Without dead ends: 74 [2020-09-25 08:56:42,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=115, Invalid=1865, Unknown=0, NotChecked=0, Total=1980 [2020-09-25 08:56:42,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-25 08:56:42,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-09-25 08:56:42,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-25 08:56:42,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2020-09-25 08:56:42,081 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 107 [2020-09-25 08:56:42,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:56:42,081 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2020-09-25 08:56:42,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-09-25 08:56:42,082 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2020-09-25 08:56:42,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-09-25 08:56:42,083 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:56:42,083 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:56:42,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 08:56:42,083 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:56:42,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:56:42,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1701157728, now seen corresponding path program 14 times [2020-09-25 08:56:42,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:56:42,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1822831480] [2020-09-25 08:56:42,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:56:42,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:42,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:43,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:43,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 08:56:43,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:43,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1793 [2020-09-25 08:56:43,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:43,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:43,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-25 08:56:43,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-09-25 08:56:43,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 08:56:43,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:43,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:56:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:43,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:43,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:43,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:56:43,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:43,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:56:43,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:43,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:43,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:56:43,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:43,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:56:43,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:56:43,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 08:56:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:43,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking...