/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --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_i25_o25-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:31:52,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:31:52,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:31:52,348 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:31:52,348 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:31:52,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:31:52,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:31:52,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:31:52,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:31:52,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:31:52,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:31:52,375 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:31:52,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:31:52,378 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:31:52,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:31:52,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:31:52,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:31:52,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:31:52,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:31:52,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:31:52,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:31:52,401 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:31:52,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:31:52,403 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:31:52,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:31:52,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:31:52,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:31:52,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:31:52,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:31:52,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:31:52,413 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:31:52,414 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:31:52,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:31:52,415 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:31:52,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:31:52,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:31:52,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:31:52,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:31:52,418 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:31:52,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:31:52,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:31:52,422 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 14:31:52,473 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:31:52,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:31:52,475 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:31:52,476 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:31:52,476 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:31:52,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:31:52,477 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:31:52,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:31:52,477 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:31:52,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:31:52,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:31:52,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:31:52,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:31:52,480 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:31:52,480 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:31:52,480 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:31:52,480 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:31:52,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:31:52,481 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:31:52,481 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:31:52,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:31:52,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:31:52,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:31:52,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:31:52,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:31:52,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:31:52,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:31:52,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:31:52,483 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:31:52,483 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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:31:52,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:31:53,002 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:31:53,007 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:31:53,010 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:31:53,010 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:31:53,011 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i25_o25-1.c [2020-09-25 14:31:53,112 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3f774d32/a2140b75d0aa4067a7c54d1dc85695a0/FLAGf1b94f39f [2020-09-25 14:31:53,650 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:31:53,650 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_i25_o25-1.c [2020-09-25 14:31:53,658 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3f774d32/a2140b75d0aa4067a7c54d1dc85695a0/FLAGf1b94f39f [2020-09-25 14:31:54,006 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3f774d32/a2140b75d0aa4067a7c54d1dc85695a0 [2020-09-25 14:31:54,020 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:31:54,026 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:31:54,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:31:54,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:31:54,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:31:54,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:31:54" (1/1) ... [2020-09-25 14:31:54,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bd8ad23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:31:54, skipping insertion in model container [2020-09-25 14:31:54,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:31:54" (1/1) ... [2020-09-25 14:31:54,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:31:54,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:31:54,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:31:54,293 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:31:54,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:31:54,324 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:31:54,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:31:54 WrapperNode [2020-09-25 14:31:54,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:31:54,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:31:54,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:31:54,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:31:54,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:31:54" (1/1) ... [2020-09-25 14:31:54,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:31:54" (1/1) ... [2020-09-25 14:31:54,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:31:54" (1/1) ... [2020-09-25 14:31:54,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:31:54" (1/1) ... [2020-09-25 14:31:54,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:31:54" (1/1) ... [2020-09-25 14:31:54,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:31:54" (1/1) ... [2020-09-25 14:31:54,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:31:54" (1/1) ... [2020-09-25 14:31:54,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:31:54,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:31:54,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:31:54,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:31:54,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:31:54" (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 14:31:54,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:31:54,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:31:54,517 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-25 14:31:54,517 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:31:54,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:31:54,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:31:54,518 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-25 14:31:54,518 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:31:54,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:31:54,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:31:54,714 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:31:54,715 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 14:31:54,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:31:54 BoogieIcfgContainer [2020-09-25 14:31:54,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:31:54,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:31:54,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:31:54,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:31:54,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:31:54" (1/3) ... [2020-09-25 14:31:54,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e3b609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:31:54, skipping insertion in model container [2020-09-25 14:31:54,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:31:54" (2/3) ... [2020-09-25 14:31:54,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e3b609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:31:54, skipping insertion in model container [2020-09-25 14:31:54,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:31:54" (3/3) ... [2020-09-25 14:31:54,768 INFO L109 eAbstractionObserver]: Analyzing ICFG id_i25_o25-1.c [2020-09-25 14:31:54,799 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:31:54,815 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:31:54,860 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:31:54,892 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:31:54,892 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:31:54,893 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:31:54,893 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:31:54,893 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:31:54,893 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:31:54,893 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:31:54,894 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:31:54,914 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-09-25 14:31:54,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 14:31:54,921 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:31:54,922 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:31:54,922 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:31:54,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:31:54,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1037734449, now seen corresponding path program 1 times [2020-09-25 14:31:54,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:31:54,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1509561441] [2020-09-25 14:31:54,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:31:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:55,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:55,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:55,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 14:31:55,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:55,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 14:31:55,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:55,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:55,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:31:55,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:31:55,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:31:55,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:31:55,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:31:55,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:55,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:55,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:55,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:31:55,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:55,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:31:55,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:55,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:55,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:31:55,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:55,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:31:55,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:55,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:31:55,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:55,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:55,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:55,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:31:55,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:55,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 14:31:55,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:55,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:55,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:31:55,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:31:55,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:31:55,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:55,265 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 14:31:55,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1509561441] [2020-09-25 14:31:55,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:31:55,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:31:55,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136765719] [2020-09-25 14:31:55,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:31:55,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:31:55,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:31:55,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:31:55,301 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 5 states. [2020-09-25 14:31:55,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:31:55,391 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-25 14:31:55,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:31:55,394 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 14:31:55,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:31:55,410 INFO L225 Difference]: With dead ends: 37 [2020-09-25 14:31:55,410 INFO L226 Difference]: Without dead ends: 23 [2020-09-25 14:31:55,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:31:55,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-09-25 14:31:55,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-09-25 14:31:55,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-09-25 14:31:55,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-09-25 14:31:55,486 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 16 [2020-09-25 14:31:55,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:31:55,487 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-09-25 14:31:55,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:31:55,487 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-09-25 14:31:55,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-25 14:31:55,490 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:31:55,491 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, 1] [2020-09-25 14:31:55,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:31:55,492 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:31:55,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:31:55,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1478812441, now seen corresponding path program 1 times [2020-09-25 14:31:55,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:31:55,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [659301411] [2020-09-25 14:31:55,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:31:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:55,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:55,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:55,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 14:31:55,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:55,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-25 14:31:55,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:55,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:55,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:31:55,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:31:55,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:31:55,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:55,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:31:55,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:55,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:55,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:55,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:31:55,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:55,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:31:55,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:55,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:55,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:31:55,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:55,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:31:55,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:55,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:31:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:55,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:55,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:55,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:31:55,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:55,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 14:31:55,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:55,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:55,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:31:55,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:31:55,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 14:31:55,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:55,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:31:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:55,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:55,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:55,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:31:55,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:55,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 14:31:55,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:55,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:55,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:31:55,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:55,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:31:55,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:55,968 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 14:31:55,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [659301411] [2020-09-25 14:31:55,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:31:55,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 14:31:55,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687720449] [2020-09-25 14:31:55,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:31:55,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:31:55,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:31:55,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:31:55,976 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 7 states. [2020-09-25 14:31:56,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:31:56,056 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-09-25 14:31:56,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 14:31:56,057 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-09-25 14:31:56,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:31:56,058 INFO L225 Difference]: With dead ends: 34 [2020-09-25 14:31:56,058 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 14:31:56,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:31:56,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 14:31:56,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 14:31:56,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 14:31:56,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2020-09-25 14:31:56,068 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 24 [2020-09-25 14:31:56,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:31:56,069 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2020-09-25 14:31:56,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:31:56,069 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-09-25 14:31:56,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 14:31:56,070 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:31:56,071 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:31:56,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:31:56,071 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:31:56,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:31:56,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1463730447, now seen corresponding path program 2 times [2020-09-25 14:31:56,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:31:56,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1076000692] [2020-09-25 14:31:56,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:31:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:56,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:56,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:56,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 14:31:56,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:56,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-25 14:31:56,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:56,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:56,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:31:56,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:31:56,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 14:31:56,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:56,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:31:56,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:56,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:56,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:56,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:31:56,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:56,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:31:56,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:56,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:56,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:31:56,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:56,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:31:56,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:56,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:31:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:56,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:56,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:56,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 14:31:56,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:56,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-25 14:31:56,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:56,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:56,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:31:56,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:31:56,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 14:31:56,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:56,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:31:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:56,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:56,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:56,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:31:56,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:56,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 14:31:56,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:56,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:56,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:31:56,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:56,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:31:56,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:56,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:31:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:56,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:56,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:56,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:31:56,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:56,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:31:56,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:56,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:56,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:31:56,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:56,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:31:56,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:56,666 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 14:31:56,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1076000692] [2020-09-25 14:31:56,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:31:56,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 14:31:56,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286394180] [2020-09-25 14:31:56,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 14:31:56,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:31:56,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 14:31:56,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:31:56,669 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 8 states. [2020-09-25 14:31:56,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:31:56,752 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-25 14:31:56,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:31:56,753 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2020-09-25 14:31:56,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:31:56,755 INFO L225 Difference]: With dead ends: 39 [2020-09-25 14:31:56,755 INFO L226 Difference]: Without dead ends: 33 [2020-09-25 14:31:56,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:31:56,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-25 14:31:56,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-09-25 14:31:56,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-25 14:31:56,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-09-25 14:31:56,774 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 32 [2020-09-25 14:31:56,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:31:56,774 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-09-25 14:31:56,774 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 14:31:56,775 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-09-25 14:31:56,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 14:31:56,777 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:31:56,778 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:31:56,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:31:56,778 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:31:56,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:31:56,779 INFO L82 PathProgramCache]: Analyzing trace with hash 23346727, now seen corresponding path program 3 times [2020-09-25 14:31:56,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:31:56,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1653780667] [2020-09-25 14:31:56,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:31:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:56,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:57,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:57,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 14:31:57,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:57,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-09-25 14:31:57,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:57,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:57,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 14:31:57,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:31:57,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:31:57,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:31:57,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:31:57,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:57,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:57,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:57,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:31:57,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:57,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:31:57,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:57,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:57,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:31:57,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:57,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:31:57,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:57,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:31:57,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:57,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:57,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:57,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 14:31:57,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:57,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-09-25 14:31:57,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:57,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:57,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 14:31:57,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:31:57,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 14:31:57,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:57,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:31:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:57,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:57,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:57,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 14:31:57,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:57,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 14:31:57,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:57,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:57,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:31:57,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:57,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:31:57,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:57,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:31:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:57,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:57,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:57,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:31:57,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:57,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 14:31:57,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:57,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:57,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:31:57,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:57,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:31:57,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:57,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:31:57,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:57,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:57,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:57,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:31:57,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:57,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:31:57,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:57,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:57,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:31:57,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:57,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:31:57,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:57,506 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 14:31:57,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1653780667] [2020-09-25 14:31:57,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:31:57,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 14:31:57,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049591121] [2020-09-25 14:31:57,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:31:57,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:31:57,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:31:57,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:31:57,509 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 9 states. [2020-09-25 14:31:57,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:31:57,596 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2020-09-25 14:31:57,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 14:31:57,597 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 40 [2020-09-25 14:31:57,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:31:57,599 INFO L225 Difference]: With dead ends: 44 [2020-09-25 14:31:57,599 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 14:31:57,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 14:31:57,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 14:31:57,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-25 14:31:57,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-25 14:31:57,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-25 14:31:57,608 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 40 [2020-09-25 14:31:57,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:31:57,608 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-25 14:31:57,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:31:57,609 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-25 14:31:57,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-25 14:31:57,611 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:31:57,611 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:31:57,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:31:57,612 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:31:57,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:31:57,612 INFO L82 PathProgramCache]: Analyzing trace with hash -649675855, now seen corresponding path program 4 times [2020-09-25 14:31:57,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:31:57,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [52508418] [2020-09-25 14:31:57,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:31:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:57,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:57,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:57,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 14:31:57,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:57,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-25 14:31:57,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:57,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:57,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:31:57,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:31:57,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 14:31:57,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:57,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:31:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:57,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:57,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:57,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:31:57,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:57,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:31:57,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:57,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:57,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:31:57,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:57,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:31:57,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:31:57,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:31:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:57,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:58,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:58,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 14:31:58,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:58,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-09-25 14:31:58,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:58,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:58,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:31:58,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:31:58,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 14:31:58,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:58,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:31:58,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:58,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:58,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:58,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 14:31:58,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:58,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-25 14:31:58,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:58,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:58,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:31:58,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:58,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 14:31:58,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:58,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:31:58,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:58,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:58,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:58,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 14:31:58,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:58,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 14:31:58,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:58,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:58,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:31:58,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:58,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:31:58,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:58,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:31:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:58,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:58,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:58,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:31:58,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:58,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 14:31:58,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:58,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:58,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:31:58,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:58,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:31:58,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:58,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:31:58,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:58,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:58,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:58,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:31:58,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:58,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:31:58,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:58,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:58,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:31:58,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:58,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:31:58,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:58,514 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 14:31:58,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [52508418] [2020-09-25 14:31:58,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:31:58,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 14:31:58,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764318527] [2020-09-25 14:31:58,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 14:31:58,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:31:58,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 14:31:58,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:31:58,517 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 10 states. [2020-09-25 14:31:58,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:31:58,636 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-09-25 14:31:58,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 14:31:58,637 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 48 [2020-09-25 14:31:58,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:31:58,639 INFO L225 Difference]: With dead ends: 49 [2020-09-25 14:31:58,639 INFO L226 Difference]: Without dead ends: 43 [2020-09-25 14:31:58,640 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-25 14:31:58,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-25 14:31:58,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-09-25 14:31:58,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-25 14:31:58,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2020-09-25 14:31:58,648 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 48 [2020-09-25 14:31:58,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:31:58,649 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2020-09-25 14:31:58,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 14:31:58,649 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2020-09-25 14:31:58,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 14:31:58,651 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:31:58,651 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:31:58,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 14:31:58,652 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:31:58,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:31:58,652 INFO L82 PathProgramCache]: Analyzing trace with hash 899977063, now seen corresponding path program 5 times [2020-09-25 14:31:58,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:31:58,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308282936] [2020-09-25 14:31:58,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:31:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:58,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:58,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:58,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 14:31:58,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:58,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-09-25 14:31:58,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:58,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:58,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 14:31:58,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:31:58,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 14:31:58,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:31:58,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:31:58,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:59,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:59,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:59,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:31:59,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:59,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:31:59,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:59,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:59,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:31:59,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:59,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:31:59,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:59,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:31:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:59,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:59,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:59,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 14:31:59,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:59,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-09-25 14:31:59,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:59,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:59,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 14:31:59,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:31:59,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 14:31:59,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:59,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:31:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:59,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:59,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:59,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 14:31:59,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:59,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-09-25 14:31:59,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:59,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:59,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 14:31:59,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:59,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 14:31:59,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:59,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:31:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:59,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:59,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:59,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 14:31:59,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:59,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-25 14:31:59,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:59,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:59,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:31:59,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:59,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 14:31:59,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:59,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:31:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:59,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:59,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:59,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 14:31:59,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:59,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 14:31:59,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:59,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:59,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:31:59,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:59,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:31:59,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:59,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:31:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:59,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:59,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:59,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:31:59,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:59,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 14:31:59,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:59,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:59,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:31:59,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:59,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:31:59,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:59,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:31:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:59,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:59,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:59,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:31:59,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:59,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:31:59,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:59,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:59,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:31:59,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:59,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:31:59,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:59,951 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 10 proven. 62 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-09-25 14:31:59,952 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308282936] [2020-09-25 14:31:59,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:31:59,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 14:31:59,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913417600] [2020-09-25 14:31:59,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 14:31:59,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:31:59,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 14:31:59,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:31:59,955 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 11 states. [2020-09-25 14:32:00,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:32:00,061 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2020-09-25 14:32:00,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 14:32:00,061 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2020-09-25 14:32:00,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:32:00,063 INFO L225 Difference]: With dead ends: 54 [2020-09-25 14:32:00,063 INFO L226 Difference]: Without dead ends: 48 [2020-09-25 14:32:00,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2020-09-25 14:32:00,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-25 14:32:00,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-25 14:32:00,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-25 14:32:00,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-09-25 14:32:00,072 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 56 [2020-09-25 14:32:00,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:32:00,072 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-09-25 14:32:00,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 14:32:00,073 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-09-25 14:32:00,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 14:32:00,074 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:32:00,074 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:32:00,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 14:32:00,074 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:32:00,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:32:00,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1000802417, now seen corresponding path program 6 times [2020-09-25 14:32:00,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:32:00,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [234568947] [2020-09-25 14:32:00,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:32:00,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:00,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:00,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:00,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:32:00,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:00,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-09-25 14:32:00,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:00,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:00,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:32:00,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:32:00,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 14:32:00,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:00,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:32:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:00,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:00,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:00,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:32:00,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:00,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:32:00,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:00,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:00,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:32:00,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:00,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:32:00,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:00,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:32:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:00,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:00,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:00,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 14:32:00,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:00,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-09-25 14:32:00,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:00,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:00,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:32:00,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:32:00,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 14:32:00,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:00,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:00,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:01,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:01,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 14:32:01,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:01,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-09-25 14:32:01,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:01,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:01,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 14:32:01,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:01,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 14:32:01,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:01,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:01,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:01,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:01,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 14:32:01,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:01,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-25 14:32:01,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:01,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:01,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 14:32:01,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:01,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 14:32:01,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:01,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:01,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:01,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:01,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 14:32:01,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:01,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-25 14:32:01,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:01,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:01,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:32:01,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:01,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 14:32:01,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:01,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:01,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:01,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:01,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 14:32:01,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:01,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 14:32:01,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:01,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:01,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:32:01,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:01,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:32:01,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:01,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:01,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:01,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:01,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:01,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:32:01,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:01,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 14:32:01,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:01,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:01,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:32:01,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:01,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:32:01,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:32:01,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:01,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:01,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:01,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:32:01,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:01,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:32:01,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:01,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:01,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:32:01,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:01,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:32:01,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:01,893 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 10 proven. 103 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-09-25 14:32:01,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [234568947] [2020-09-25 14:32:01,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:32:01,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 14:32:01,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340886114] [2020-09-25 14:32:01,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 14:32:01,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:32:01,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 14:32:01,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-09-25 14:32:01,899 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 13 states. [2020-09-25 14:32:02,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:32:02,049 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-25 14:32:02,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 14:32:02,050 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 64 [2020-09-25 14:32:02,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:32:02,052 INFO L225 Difference]: With dead ends: 59 [2020-09-25 14:32:02,052 INFO L226 Difference]: Without dead ends: 53 [2020-09-25 14:32:02,055 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=247, Unknown=0, NotChecked=0, Total=380 [2020-09-25 14:32:02,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-09-25 14:32:02,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-09-25 14:32:02,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-25 14:32:02,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2020-09-25 14:32:02,067 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 64 [2020-09-25 14:32:02,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:32:02,068 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2020-09-25 14:32:02,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 14:32:02,069 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2020-09-25 14:32:02,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 14:32:02,072 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:32:02,072 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:32:02,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 14:32:02,072 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:32:02,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:32:02,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1977618599, now seen corresponding path program 7 times [2020-09-25 14:32:02,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:32:02,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1783469182] [2020-09-25 14:32:02,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:32:02,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:02,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:02,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:02,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-25 14:32:02,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:02,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 526 [2020-09-25 14:32:02,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:02,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:02,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 14:32:02,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:32:02,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 14:32:02,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:02,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:32:02,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:02,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:02,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:02,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:32:02,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:02,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:32:02,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:02,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:02,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:32:02,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:02,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:32:02,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:02,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:32:02,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:02,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:03,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:03,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 14:32:03,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:03,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 427 [2020-09-25 14:32:03,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:03,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:03,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 14:32:03,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:32:03,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 14:32:03,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:03,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:03,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:03,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:03,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 14:32:03,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:03,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 392 [2020-09-25 14:32:03,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:03,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:03,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 14:32:03,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:03,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 14:32:03,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:03,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:03,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:03,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:03,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 14:32:03,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:03,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-09-25 14:32:03,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:03,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:03,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 14:32:03,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:03,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 14:32:03,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:03,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:03,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:04,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:04,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 14:32:04,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:04,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-09-25 14:32:04,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:04,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:04,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 14:32:04,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:04,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 14:32:04,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:32:04,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:04,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:04,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:04,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 14:32:04,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:04,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-09-25 14:32:04,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:04,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:04,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:32:04,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:04,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 14:32:04,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:32:04,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:04,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:04,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:04,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 14:32:04,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:04,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 14:32:04,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:04,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:04,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:32:04,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:04,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:32:04,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:32:04,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:04,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:04,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:04,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:32:04,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:04,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 14:32:04,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:04,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:04,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:32:04,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:04,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:32:04,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:32:04,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:04,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:04,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:04,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:32:04,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:04,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:32:04,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:04,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:04,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:32:04,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:04,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:32:04,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:32:04,775 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 16 proven. 131 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-09-25 14:32:04,776 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1783469182] [2020-09-25 14:32:04,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:32:04,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 14:32:04,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958697118] [2020-09-25 14:32:04,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 14:32:04,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:32:04,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 14:32:04,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-25 14:32:04,780 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 13 states. [2020-09-25 14:32:04,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:32:04,938 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-09-25 14:32:04,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 14:32:04,940 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 72 [2020-09-25 14:32:04,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:32:04,941 INFO L225 Difference]: With dead ends: 64 [2020-09-25 14:32:04,941 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 14:32:04,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-09-25 14:32:04,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 14:32:04,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-25 14:32:04,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 14:32:04,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-09-25 14:32:04,959 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 72 [2020-09-25 14:32:04,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:32:04,960 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-09-25 14:32:04,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 14:32:04,960 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-09-25 14:32:04,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-25 14:32:04,963 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:32:04,964 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:32:04,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 14:32:04,964 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:32:04,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:32:04,965 INFO L82 PathProgramCache]: Analyzing trace with hash 555623729, now seen corresponding path program 8 times [2020-09-25 14:32:04,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:32:04,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1257921058] [2020-09-25 14:32:04,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:32:04,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:04,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:05,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:05,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-25 14:32:05,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:05,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 551 [2020-09-25 14:32:05,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:05,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:05,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 14:32:05,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:32:05,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 14:32:05,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:05,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:32:05,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:05,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:05,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:05,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:32:05,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:05,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:32:05,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:05,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:05,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:32:05,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:05,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:32:05,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:05,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:32:05,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:05,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:06,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:06,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 14:32:06,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:06,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 504 [2020-09-25 14:32:06,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:06,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:06,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 14:32:06,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:32:06,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 14:32:06,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:06,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:06,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:06,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:06,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 14:32:06,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:06,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 424 [2020-09-25 14:32:06,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:06,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:06,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 14:32:06,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:06,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 14:32:06,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:06,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:06,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:06,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:06,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 14:32:06,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:06,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-09-25 14:32:06,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:06,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:06,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 14:32:06,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:06,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 14:32:06,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:06,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:06,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:06,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:07,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:07,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 14:32:07,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:07,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-09-25 14:32:07,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:07,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:07,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 14:32:07,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:07,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 14:32:07,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:07,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:07,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:07,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:07,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 14:32:07,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:07,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-09-25 14:32:07,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:07,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:07,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 14:32:07,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:07,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 14:32:07,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:07,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:07,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:07,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:07,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 14:32:07,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:07,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-25 14:32:07,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:07,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:07,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:32:07,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:07,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 14:32:07,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:07,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:07,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:07,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:07,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 14:32:07,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:07,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 14:32:07,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:07,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:07,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:32:07,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:07,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:32:07,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:32:07,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:07,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:07,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:07,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:07,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:32:07,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:07,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 14:32:07,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:07,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:07,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:32:07,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:07,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:32:07,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:07,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:07,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:07,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:07,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:07,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:32:07,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:07,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:32:07,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:07,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:07,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:32:07,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:07,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:32:07,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:07,946 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 12 proven. 184 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-09-25 14:32:07,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1257921058] [2020-09-25 14:32:07,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:32:07,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 14:32:07,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068378133] [2020-09-25 14:32:07,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 14:32:07,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:32:07,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 14:32:07,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-09-25 14:32:07,949 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 15 states. [2020-09-25 14:32:08,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:32:08,100 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2020-09-25 14:32:08,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 14:32:08,100 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 80 [2020-09-25 14:32:08,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:32:08,102 INFO L225 Difference]: With dead ends: 69 [2020-09-25 14:32:08,102 INFO L226 Difference]: Without dead ends: 63 [2020-09-25 14:32:08,103 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=194, Invalid=358, Unknown=0, NotChecked=0, Total=552 [2020-09-25 14:32:08,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-25 14:32:08,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-09-25 14:32:08,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 14:32:08,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2020-09-25 14:32:08,110 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 80 [2020-09-25 14:32:08,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:32:08,111 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2020-09-25 14:32:08,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 14:32:08,111 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2020-09-25 14:32:08,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-25 14:32:08,112 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:32:08,112 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:32:08,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 14:32:08,113 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:32:08,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:32:08,113 INFO L82 PathProgramCache]: Analyzing trace with hash 777699815, now seen corresponding path program 9 times [2020-09-25 14:32:08,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:32:08,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1854649437] [2020-09-25 14:32:08,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:32:08,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:08,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:08,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:08,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 14:32:08,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:08,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 610 [2020-09-25 14:32:08,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:08,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:08,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 14:32:08,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:32:08,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 14:32:08,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:08,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:32:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:08,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:08,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:08,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:32:08,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:08,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:32:08,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:08,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:08,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:32:08,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:08,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:32:08,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:08,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:32:08,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:08,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:09,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:09,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 14:32:09,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:09,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 569 [2020-09-25 14:32:09,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:09,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:09,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 14:32:09,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:32:09,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 14:32:09,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:09,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:09,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:09,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:09,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 14:32:09,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:09,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 517 [2020-09-25 14:32:09,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:09,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:09,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 14:32:09,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:09,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 14:32:09,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:09,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:09,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:09,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:10,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:10,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 14:32:10,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:10,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 388 [2020-09-25 14:32:10,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:10,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:10,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 14:32:10,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:10,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 14:32:10,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:10,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:10,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:10,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:10,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 14:32:10,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:10,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-09-25 14:32:10,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:10,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:10,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 14:32:10,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:10,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 14:32:10,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:10,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:10,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:10,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:10,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:10,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 14:32:10,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:10,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-09-25 14:32:10,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:10,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:10,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 14:32:10,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:10,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 14:32:10,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:10,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:10,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:10,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:11,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:11,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 14:32:11,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:11,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-09-25 14:32:11,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:11,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:11,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 14:32:11,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:11,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 14:32:11,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:11,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:11,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:11,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:11,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 14:32:11,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:11,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 14:32:11,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:11,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:11,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:32:11,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:11,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 14:32:11,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:11,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:11,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:11,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:11,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 14:32:11,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:11,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 14:32:11,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:11,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:11,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:32:11,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:11,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:32:11,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:11,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:11,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:11,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:11,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:11,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:32:11,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:11,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 14:32:11,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:11,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:11,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:32:11,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:11,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:32:11,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:11,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:11,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:11,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:11,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:11,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:32:11,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:11,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:32:11,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:11,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:11,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:32:11,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:11,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:32:11,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:11,615 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 26 proven. 214 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-09-25 14:32:11,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1854649437] [2020-09-25 14:32:11,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:32:11,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 14:32:11,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855039275] [2020-09-25 14:32:11,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 14:32:11,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:32:11,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 14:32:11,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-25 14:32:11,618 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 15 states. [2020-09-25 14:32:11,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:32:11,775 INFO L93 Difference]: Finished difference Result 74 states and 75 transitions. [2020-09-25 14:32:11,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 14:32:11,775 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 88 [2020-09-25 14:32:11,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:32:11,776 INFO L225 Difference]: With dead ends: 74 [2020-09-25 14:32:11,777 INFO L226 Difference]: Without dead ends: 68 [2020-09-25 14:32:11,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2020-09-25 14:32:11,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-25 14:32:11,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-09-25 14:32:11,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-25 14:32:11,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2020-09-25 14:32:11,790 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 88 [2020-09-25 14:32:11,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:32:11,791 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2020-09-25 14:32:11,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 14:32:11,791 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2020-09-25 14:32:11,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-09-25 14:32:11,792 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:32:11,792 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:32:11,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 14:32:11,793 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:32:11,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:32:11,793 INFO L82 PathProgramCache]: Analyzing trace with hash 2145915377, now seen corresponding path program 10 times [2020-09-25 14:32:11,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:32:11,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1671781378] [2020-09-25 14:32:11,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:32:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:11,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:12,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:12,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-25 14:32:12,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:12,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 712 [2020-09-25 14:32:12,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:12,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:12,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 14:32:12,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:32:12,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 14:32:12,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:12,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:32:12,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:12,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:12,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:12,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:32:12,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:12,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:32:12,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:12,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:12,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:32:12,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:12,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:32:12,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:12,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:32:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:12,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:13,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:13,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 14:32:13,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:13,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 647 [2020-09-25 14:32:13,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:13,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:13,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 14:32:13,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:32:13,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-25 14:32:13,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:13,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:13,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:13,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:13,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 14:32:13,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:13,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 533 [2020-09-25 14:32:13,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:13,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:13,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 14:32:13,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:13,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 14:32:13,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:13,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:13,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:14,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:14,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 14:32:14,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:14,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 436 [2020-09-25 14:32:14,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:14,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:14,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 14:32:14,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:14,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 14:32:14,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:14,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:14,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:14,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:14,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 14:32:14,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:14,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 427 [2020-09-25 14:32:14,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:14,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:14,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 14:32:14,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:14,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 14:32:14,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:14,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:14,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:15,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:15,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 14:32:15,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:15,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-09-25 14:32:15,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:15,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:15,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 14:32:15,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:15,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 14:32:15,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:15,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:15,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:15,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:15,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 14:32:15,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:15,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-09-25 14:32:15,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:15,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:15,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 14:32:15,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:15,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 14:32:15,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:15,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:15,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:15,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:15,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 14:32:15,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:15,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-25 14:32:15,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:15,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:15,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 14:32:15,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:15,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 14:32:15,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:15,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:15,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:15,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:15,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 14:32:15,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:15,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 14:32:15,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:15,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:15,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:32:15,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:15,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 14:32:15,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:15,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:15,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:15,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:15,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 14:32:15,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:15,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 14:32:15,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:15,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:15,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:32:15,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:15,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:32:15,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:15,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:15,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:15,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:15,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:32:15,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:15,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 14:32:15,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:15,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:15,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:32:15,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:15,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:32:15,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:15,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:15,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:15,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:15,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:32:15,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:15,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:32:15,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:15,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:15,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:32:15,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:15,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:32:15,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:15,885 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 27 proven. 267 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2020-09-25 14:32:15,885 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1671781378] [2020-09-25 14:32:15,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:32:15,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 14:32:15,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136868656] [2020-09-25 14:32:15,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 14:32:15,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:32:15,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 14:32:15,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-09-25 14:32:15,888 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 16 states. [2020-09-25 14:32:16,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:32:16,090 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-25 14:32:16,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 14:32:16,091 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 96 [2020-09-25 14:32:16,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:32:16,093 INFO L225 Difference]: With dead ends: 79 [2020-09-25 14:32:16,093 INFO L226 Difference]: Without dead ends: 73 [2020-09-25 14:32:16,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=250, Invalid=452, Unknown=0, NotChecked=0, Total=702 [2020-09-25 14:32:16,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-25 14:32:16,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-09-25 14:32:16,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-25 14:32:16,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2020-09-25 14:32:16,102 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 96 [2020-09-25 14:32:16,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:32:16,102 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2020-09-25 14:32:16,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 14:32:16,103 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2020-09-25 14:32:16,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-25 14:32:16,104 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:32:16,104 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:32:16,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 14:32:16,104 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:32:16,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:32:16,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1180214055, now seen corresponding path program 11 times [2020-09-25 14:32:16,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:32:16,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1444901171] [2020-09-25 14:32:16,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:32:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:16,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:16,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:16,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-09-25 14:32:16,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:16,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 681 [2020-09-25 14:32:16,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:16,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:16,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 14:32:16,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:32:16,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 14:32:16,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:16,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:32:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:16,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:16,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:16,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:32:16,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:16,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:32:16,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:16,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:16,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:32:16,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:16,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:32:16,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:16,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:32:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:16,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:17,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:17,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 14:32:17,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:17,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 705 [2020-09-25 14:32:17,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:17,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:17,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 14:32:17,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:32:17,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 14:32:17,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:17,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:17,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:17,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:18,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:18,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 14:32:18,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:18,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 615 [2020-09-25 14:32:18,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:18,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:18,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 14:32:18,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:18,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 14:32:18,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:18,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:18,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:18,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:18,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 14:32:18,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:18,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 483 [2020-09-25 14:32:18,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:18,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:18,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 14:32:18,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:18,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 14:32:18,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:18,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:18,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:19,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:19,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 14:32:19,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:19,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 402 [2020-09-25 14:32:19,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:19,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:19,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 14:32:19,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:19,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 14:32:19,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:19,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:19,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:19,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:19,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:19,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 14:32:19,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:19,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-09-25 14:32:19,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:19,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:19,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 14:32:19,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:19,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 14:32:19,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:19,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:19,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:19,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:19,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:19,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 14:32:19,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:19,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-09-25 14:32:19,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:19,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:19,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 14:32:19,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:19,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 14:32:19,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:19,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:19,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:20,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:20,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 14:32:20,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:20,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-25 14:32:20,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:20,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:20,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 14:32:20,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:20,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 14:32:20,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:32:20,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:20,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:20,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:20,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:20,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 14:32:20,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:20,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-25 14:32:20,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:20,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:20,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 14:32:20,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:20,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 14:32:20,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:20,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:20,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:20,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:20,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 14:32:20,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:20,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 14:32:20,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:20,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:20,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:32:20,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:20,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 14:32:20,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:20,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:20,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:20,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:20,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:20,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 14:32:20,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:20,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 14:32:20,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:20,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:20,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:32:20,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:20,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:32:20,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:20,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:20,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:20,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:20,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:32:20,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:20,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 14:32:20,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:20,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:20,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:32:20,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:20,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:32:20,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:20,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:20,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:20,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:20,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:20,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:32:20,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:20,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:32:20,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:20,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:20,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:32:20,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:20,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:32:20,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:20,689 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 11 proven. 297 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-09-25 14:32:20,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1444901171] [2020-09-25 14:32:20,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:32:20,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 14:32:20,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151991635] [2020-09-25 14:32:20,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 14:32:20,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:32:20,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 14:32:20,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-09-25 14:32:20,692 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand 17 states. [2020-09-25 14:32:20,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:32:20,921 INFO L93 Difference]: Finished difference Result 84 states and 85 transitions. [2020-09-25 14:32:20,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 14:32:20,923 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 104 [2020-09-25 14:32:20,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:32:20,924 INFO L225 Difference]: With dead ends: 84 [2020-09-25 14:32:20,925 INFO L226 Difference]: Without dead ends: 78 [2020-09-25 14:32:20,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2020-09-25 14:32:20,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-25 14:32:20,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-09-25 14:32:20,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-25 14:32:20,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 79 transitions. [2020-09-25 14:32:20,932 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 79 transitions. Word has length 104 [2020-09-25 14:32:20,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:32:20,932 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 79 transitions. [2020-09-25 14:32:20,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 14:32:20,933 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 79 transitions. [2020-09-25 14:32:20,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-25 14:32:20,934 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:32:20,934 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:32:20,934 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 14:32:20,934 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:32:20,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:32:20,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1287598415, now seen corresponding path program 12 times [2020-09-25 14:32:20,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:32:20,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [538237750] [2020-09-25 14:32:20,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:32:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:20,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:21,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:21,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-25 14:32:21,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:21,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 827 [2020-09-25 14:32:21,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:21,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:21,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 14:32:21,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:32:21,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 14:32:21,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:21,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:32:21,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:21,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:21,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:21,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:32:21,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:21,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:32:21,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:21,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:21,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:32:21,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:21,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:32:21,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:21,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:32:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:21,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:22,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:22,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 14:32:22,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:22,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 870 [2020-09-25 14:32:22,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:22,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:22,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 14:32:22,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:32:22,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-09-25 14:32:22,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:22,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:22,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:23,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:23,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 14:32:23,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:23,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 659 [2020-09-25 14:32:23,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:23,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:23,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 14:32:23,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:23,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 14:32:23,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:23,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:23,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:23,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:24,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:24,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 14:32:24,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:24,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 597 [2020-09-25 14:32:24,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:24,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:24,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 14:32:24,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:24,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 14:32:24,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:24,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:24,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:24,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:24,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:24,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 14:32:24,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:24,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 448 [2020-09-25 14:32:24,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:24,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:24,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 14:32:24,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:24,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 14:32:24,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:24,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:24,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:24,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:24,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:24,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 14:32:24,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:24,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 393 [2020-09-25 14:32:24,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:24,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:24,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 14:32:24,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:24,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 14:32:24,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:24,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:24,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:25,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:25,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 14:32:25,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:25,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-09-25 14:32:25,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:25,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:25,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 14:32:25,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:25,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 14:32:25,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:25,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:25,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:25,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:25,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 14:32:25,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:25,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-25 14:32:25,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:25,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:25,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 14:32:25,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:25,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 14:32:25,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:25,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:25,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:25,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:25,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:25,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 14:32:25,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:25,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-09-25 14:32:25,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:25,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:25,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 14:32:25,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:25,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 14:32:25,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:25,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:25,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:25,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:25,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 14:32:25,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:25,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-25 14:32:25,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:25,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:25,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 14:32:25,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:25,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 14:32:25,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:25,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:26,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:26,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:26,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 14:32:26,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:26,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 14:32:26,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:26,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:26,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:32:26,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:26,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 14:32:26,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:26,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:26,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:26,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:26,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 14:32:26,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:26,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 14:32:26,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:26,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:26,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:32:26,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:26,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:32:26,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:26,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:26,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:26,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:26,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:26,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:32:26,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:26,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 14:32:26,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:26,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:26,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:32:26,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:26,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:32:26,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:26,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:26,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:26,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:26,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:32:26,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:26,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:32:26,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:26,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:26,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:32:26,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:26,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:32:26,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:26,345 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 22 proven. 374 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-09-25 14:32:26,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [538237750] [2020-09-25 14:32:26,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:32:26,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-25 14:32:26,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706023407] [2020-09-25 14:32:26,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-25 14:32:26,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:32:26,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-25 14:32:26,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306 [2020-09-25 14:32:26,348 INFO L87 Difference]: Start difference. First operand 78 states and 79 transitions. Second operand 18 states. [2020-09-25 14:32:26,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:32:26,603 INFO L93 Difference]: Finished difference Result 89 states and 90 transitions. [2020-09-25 14:32:26,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 14:32:26,604 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 112 [2020-09-25 14:32:26,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:32:26,605 INFO L225 Difference]: With dead ends: 89 [2020-09-25 14:32:26,605 INFO L226 Difference]: Without dead ends: 83 [2020-09-25 14:32:26,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=597, Unknown=0, NotChecked=0, Total=930 [2020-09-25 14:32:26,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-09-25 14:32:26,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-09-25 14:32:26,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-09-25 14:32:26,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 84 transitions. [2020-09-25 14:32:26,620 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 84 transitions. Word has length 112 [2020-09-25 14:32:26,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:32:26,620 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 84 transitions. [2020-09-25 14:32:26,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-25 14:32:26,621 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 84 transitions. [2020-09-25 14:32:26,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-09-25 14:32:26,622 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:32:26,622 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:32:26,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 14:32:26,623 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:32:26,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:32:26,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1612559463, now seen corresponding path program 13 times [2020-09-25 14:32:26,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:32:26,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921473518] [2020-09-25 14:32:26,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:32:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:26,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:27,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:27,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-25 14:32:27,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:27,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 900 [2020-09-25 14:32:27,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:27,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:27,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-25 14:32:27,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:32:27,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 14:32:27,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:27,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:32:27,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:27,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:27,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:27,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:32:27,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:27,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:32:27,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:27,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:27,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:32:27,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:27,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:32:27,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:27,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:32:27,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:27,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:28,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:28,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 14:32:28,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:28,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 823 [2020-09-25 14:32:28,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:28,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:28,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-25 14:32:28,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:32:28,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-09-25 14:32:28,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:28,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:28,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:29,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:29,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 14:32:29,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:29,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 808 [2020-09-25 14:32:29,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:29,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:29,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 14:32:29,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:29,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 14:32:29,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:29,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:29,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:29,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:29,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 14:32:29,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:29,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 657 [2020-09-25 14:32:29,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:29,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:29,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 14:32:29,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:29,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 14:32:29,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:29,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:29,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:30,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:30,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 14:32:30,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:30,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 545 [2020-09-25 14:32:30,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:30,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:30,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 14:32:30,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:30,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 14:32:30,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:30,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:30,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:31,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:31,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 14:32:31,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:31,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 468 [2020-09-25 14:32:31,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:31,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:31,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 14:32:31,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:31,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 14:32:31,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:31,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:31,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:31,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:31,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:31,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 14:32:31,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:31,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 389 [2020-09-25 14:32:31,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:31,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:31,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 14:32:31,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:31,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 14:32:31,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:31,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:31,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:31,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:31,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:31,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 14:32:31,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:31,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 299 [2020-09-25 14:32:31,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:31,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:31,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 14:32:31,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:31,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 14:32:31,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:31,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:31,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:32,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:32,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 14:32:32,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:32,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-25 14:32:32,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:32,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:32,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 14:32:32,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:32,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 14:32:32,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:32,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:32,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:32,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:32,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 14:32:32,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:32,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-09-25 14:32:32,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:32,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:32,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 14:32:32,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:32,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 14:32:32,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:32,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:32,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:32,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:32,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:32,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 14:32:32,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:32,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-25 14:32:32,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:32,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:32,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 14:32:32,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:32,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 14:32:32,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:32,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:32,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:32,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:32,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:32,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 14:32:32,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:32,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 14:32:32,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:32,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:32,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:32:32,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:32,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 14:32:32,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:32,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:32,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:32,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:32,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:32,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 14:32:32,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:32,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 14:32:32,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:32,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:32,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:32:32,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:32,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:32:32,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:32,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:32,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:32,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:32,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:32:32,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:32,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 14:32:32,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:32,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:32,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:32:32,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:32,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:32:32,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:32,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:32,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:32,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:32,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:32:32,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:32,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:32:32,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:32,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:32,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:32:32,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:32,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:32:32,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:32,839 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 25 proven. 488 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2020-09-25 14:32:32,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921473518] [2020-09-25 14:32:32,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:32:32,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 14:32:32,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416685086] [2020-09-25 14:32:32,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 14:32:32,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:32:32,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 14:32:32,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=247, Unknown=0, NotChecked=0, Total=380 [2020-09-25 14:32:32,842 INFO L87 Difference]: Start difference. First operand 83 states and 84 transitions. Second operand 20 states. [2020-09-25 14:32:33,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:32:33,121 INFO L93 Difference]: Finished difference Result 94 states and 95 transitions. [2020-09-25 14:32:33,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 14:32:33,121 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 120 [2020-09-25 14:32:33,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:32:33,123 INFO L225 Difference]: With dead ends: 94 [2020-09-25 14:32:33,123 INFO L226 Difference]: Without dead ends: 88 [2020-09-25 14:32:33,124 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=399, Invalid=723, Unknown=0, NotChecked=0, Total=1122 [2020-09-25 14:32:33,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-25 14:32:33,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2020-09-25 14:32:33,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-09-25 14:32:33,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 89 transitions. [2020-09-25 14:32:33,130 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 89 transitions. Word has length 120 [2020-09-25 14:32:33,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:32:33,131 INFO L479 AbstractCegarLoop]: Abstraction has 88 states and 89 transitions. [2020-09-25 14:32:33,131 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-25 14:32:33,131 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 89 transitions. [2020-09-25 14:32:33,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-09-25 14:32:33,132 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:32:33,132 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:32:33,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 14:32:33,133 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:32:33,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:32:33,133 INFO L82 PathProgramCache]: Analyzing trace with hash 996432753, now seen corresponding path program 14 times [2020-09-25 14:32:33,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:32:33,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1229149779] [2020-09-25 14:32:33,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:32:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:33,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:34,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:34,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-09-25 14:32:34,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:34,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 980 [2020-09-25 14:32:34,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:34,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:34,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-25 14:32:34,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:32:34,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 14:32:34,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:34,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:32:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:34,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:34,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:34,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:32:34,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:34,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:32:34,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:34,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:34,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:32:34,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:34,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:32:34,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:34,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:32:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:34,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:35,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:35,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 14:32:35,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:35,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 995 [2020-09-25 14:32:35,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:35,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:35,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-25 14:32:35,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:32:35,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-09-25 14:32:35,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:35,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:35,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:35,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:36,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:36,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 14:32:36,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:36,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 885 [2020-09-25 14:32:36,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:36,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:36,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 14:32:36,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:36,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-25 14:32:36,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:36,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:36,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:36,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:36,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 14:32:36,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:36,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 790 [2020-09-25 14:32:36,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:36,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:36,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 14:32:36,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:36,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 14:32:36,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:36,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:36,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:37,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:37,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:37,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 14:32:37,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:37,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 654 [2020-09-25 14:32:37,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:37,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:37,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 14:32:37,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:37,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 14:32:37,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:37,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:37,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:38,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:38,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 14:32:38,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:38,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 560 [2020-09-25 14:32:38,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:38,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:38,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 14:32:38,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:38,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 14:32:38,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:38,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:38,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:38,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:38,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:38,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 14:32:38,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:38,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 480 [2020-09-25 14:32:38,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:38,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:38,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 14:32:38,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:38,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 14:32:38,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:38,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:38,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:38,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:39,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:39,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 14:32:39,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:39,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 408 [2020-09-25 14:32:39,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:39,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:39,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 14:32:39,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:39,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 14:32:39,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:39,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:39,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:39,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:39,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 14:32:39,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:39,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-09-25 14:32:39,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:39,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:39,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 14:32:39,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:39,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 14:32:39,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:39,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:39,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:39,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:39,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 14:32:39,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:39,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-25 14:32:39,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:39,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:39,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 14:32:39,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:39,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 14:32:39,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:39,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:39,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:39,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:39,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 14:32:39,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:39,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-09-25 14:32:39,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:39,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:39,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 14:32:39,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:39,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 14:32:39,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:40,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:40,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:40,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:40,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:40,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 14:32:40,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:40,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-25 14:32:40,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:40,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:40,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 14:32:40,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:40,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 14:32:40,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:40,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:40,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:40,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:40,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 14:32:40,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:40,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 14:32:40,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:40,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:40,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:32:40,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:40,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 14:32:40,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:40,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:40,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:40,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:40,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 14:32:40,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:40,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 14:32:40,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:40,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:40,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:32:40,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:40,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:32:40,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:40,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:40,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:40,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:40,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:32:40,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:40,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 14:32:40,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:40,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:40,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:32:40,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:40,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:32:40,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:40,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:40,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:40,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:40,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:32:40,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:40,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:32:40,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:40,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:40,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:32:40,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:40,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:32:40,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:40,561 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 42 proven. 545 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2020-09-25 14:32:40,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1229149779] [2020-09-25 14:32:40,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:32:40,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 14:32:40,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314817033] [2020-09-25 14:32:40,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 14:32:40,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:32:40,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 14:32:40,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=237, Unknown=0, NotChecked=0, Total=380 [2020-09-25 14:32:40,562 INFO L87 Difference]: Start difference. First operand 88 states and 89 transitions. Second operand 20 states. [2020-09-25 14:32:40,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:32:40,847 INFO L93 Difference]: Finished difference Result 99 states and 100 transitions. [2020-09-25 14:32:40,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 14:32:40,848 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 128 [2020-09-25 14:32:40,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:32:40,850 INFO L225 Difference]: With dead ends: 99 [2020-09-25 14:32:40,850 INFO L226 Difference]: Without dead ends: 93 [2020-09-25 14:32:40,851 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=428, Invalid=762, Unknown=0, NotChecked=0, Total=1190 [2020-09-25 14:32:40,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-09-25 14:32:40,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-09-25 14:32:40,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-25 14:32:40,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 94 transitions. [2020-09-25 14:32:40,864 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 94 transitions. Word has length 128 [2020-09-25 14:32:40,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:32:40,866 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 94 transitions. [2020-09-25 14:32:40,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-25 14:32:40,866 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 94 transitions. [2020-09-25 14:32:40,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-25 14:32:40,870 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:32:40,870 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:32:40,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 14:32:40,870 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:32:40,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:32:40,871 INFO L82 PathProgramCache]: Analyzing trace with hash 418248103, now seen corresponding path program 15 times [2020-09-25 14:32:40,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:32:40,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181451659] [2020-09-25 14:32:40,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:32:40,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:40,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:42,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:42,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-09-25 14:32:42,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:42,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1188 [2020-09-25 14:32:42,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:42,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:42,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-25 14:32:42,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:32:42,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 14:32:42,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:42,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:32:42,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:42,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:42,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:42,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:32:42,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:42,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:32:42,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:42,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:42,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:32:42,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:42,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:32:42,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:42,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:32:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:42,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:43,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:43,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-09-25 14:32:43,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:43,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1131 [2020-09-25 14:32:43,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:43,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:43,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-25 14:32:43,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:32:43,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-09-25 14:32:43,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:43,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:43,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:43,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:44,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:44,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 14:32:44,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:44,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1043 [2020-09-25 14:32:44,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:44,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:44,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-25 14:32:44,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:44,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-09-25 14:32:44,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:44,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:44,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:44,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:45,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:45,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 14:32:45,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:45,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 934 [2020-09-25 14:32:45,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:45,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:45,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 14:32:45,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:45,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-25 14:32:45,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:45,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:45,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:46,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:46,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 14:32:46,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:46,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 767 [2020-09-25 14:32:46,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:46,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:46,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 14:32:46,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:46,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 14:32:46,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:46,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:46,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:46,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:46,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:46,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 14:32:46,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:46,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 669 [2020-09-25 14:32:46,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:46,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:46,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 14:32:46,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:46,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 14:32:46,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:46,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:46,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:47,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:47,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 14:32:47,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:47,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 554 [2020-09-25 14:32:47,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:47,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:47,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 14:32:47,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:47,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 14:32:47,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:47,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:47,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:47,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:47,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 14:32:47,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:47,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 505 [2020-09-25 14:32:47,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:47,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:47,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 14:32:47,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:47,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 14:32:47,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:47,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:47,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:47,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:48,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:48,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 14:32:48,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:48,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-09-25 14:32:48,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:48,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:48,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 14:32:48,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:48,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 14:32:48,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:48,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:48,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:48,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:48,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:48,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 14:32:48,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:48,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-09-25 14:32:48,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:48,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:48,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 14:32:48,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:48,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 14:32:48,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:48,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:48,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:49,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:49,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 14:32:49,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:49,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-09-25 14:32:49,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:49,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:49,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 14:32:49,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:49,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 14:32:49,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:49,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:49,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:49,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:49,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 14:32:49,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:49,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-09-25 14:32:49,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:49,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:49,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 14:32:49,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:49,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 14:32:49,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:49,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:49,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:49,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:49,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:49,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 14:32:49,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:49,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-09-25 14:32:49,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:49,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:49,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 14:32:49,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:49,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 14:32:49,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:49,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:49,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:49,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:49,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 14:32:49,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:49,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 14:32:49,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:49,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:49,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:32:49,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:49,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 14:32:49,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:32:49,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:49,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:49,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:49,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 14:32:49,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:49,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 14:32:49,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:49,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:49,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:32:49,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:49,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:32:49,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:49,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:49,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:49,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:49,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:32:49,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:49,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 14:32:49,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:49,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:49,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:32:49,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:49,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:32:49,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:49,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:32:49,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:49,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:32:49,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:32:49,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:32:49,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:32:49,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:32:49,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:32:49,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:32:49,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:32:49,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:32:49,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:32:49,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:32:49,885 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 40 proven. 643 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-09-25 14:32:49,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181451659] [2020-09-25 14:32:49,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:32:49,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-09-25 14:32:49,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228786354] [2020-09-25 14:32:49,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-09-25 14:32:49,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:32:49,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-09-25 14:32:49,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=299, Unknown=0, NotChecked=0, Total=462 [2020-09-25 14:32:49,888 INFO L87 Difference]: Start difference. First operand 93 states and 94 transitions. Second operand 22 states. [2020-09-25 14:32:50,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:32:50,218 INFO L93 Difference]: Finished difference Result 104 states and 105 transitions. [2020-09-25 14:32:50,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 14:32:50,218 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 136 [2020-09-25 14:32:50,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:32:50,219 INFO L225 Difference]: With dead ends: 104 [2020-09-25 14:32:50,219 INFO L226 Difference]: Without dead ends: 98 [2020-09-25 14:32:50,221 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=499, Invalid=907, Unknown=0, NotChecked=0, Total=1406 [2020-09-25 14:32:50,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-09-25 14:32:50,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-09-25 14:32:50,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-25 14:32:50,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 99 transitions. [2020-09-25 14:32:50,226 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 99 transitions. Word has length 136 [2020-09-25 14:32:50,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:32:50,227 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 99 transitions. [2020-09-25 14:32:50,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-09-25 14:32:50,227 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 99 transitions. [2020-09-25 14:32:50,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-09-25 14:32:50,229 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:32:50,229 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:32:50,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 14:32:50,229 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:32:50,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:32:50,230 INFO L82 PathProgramCache]: Analyzing trace with hash 2106505265, now seen corresponding path program 16 times [2020-09-25 14:32:50,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:32:50,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1514673133] [2020-09-25 14:32:50,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:32:50,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:32:50,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking...