/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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/fibo_2calls_8-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:45:15,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:45:15,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:45:15,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:45:15,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:45:15,462 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:45:15,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:45:15,468 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:45:15,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:45:15,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:45:15,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:45:15,476 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:45:15,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:45:15,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:45:15,481 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:45:15,482 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:45:15,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:45:15,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:45:15,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:45:15,493 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:45:15,494 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:45:15,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:45:15,500 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:45:15,501 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:45:15,505 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:45:15,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:45:15,506 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:45:15,509 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:45:15,509 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:45:15,510 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:45:15,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:45:15,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:45:15,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:45:15,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:45:15,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:45:15,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:45:15,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:45:15,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:45:15,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:45:15,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:45:15,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:45:15,519 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 07:45:15,568 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:45:15,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:45:15,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:45:15,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:45:15,572 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:45:15,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:45:15,572 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:45:15,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:45:15,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:45:15,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:45:15,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:45:15,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:45:15,575 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:45:15,575 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:45:15,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:45:15,575 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:45:15,576 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:45:15,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:45:15,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:45:15,576 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:45:15,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:45:15,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:45:15,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:45:15,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:45:15,578 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:45:15,578 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:45:15,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:45:15,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:45:15,578 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:45:15,579 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:45:16,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:45:16,102 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:45:16,107 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:45:16,110 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:45:16,110 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:45:16,112 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_8-2.c [2020-09-25 07:45:16,204 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c08990a02/438d0ca2e8b34d239c5d5904272cae9a/FLAG39d624e7e [2020-09-25 07:45:16,718 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:45:16,719 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_8-2.c [2020-09-25 07:45:16,726 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c08990a02/438d0ca2e8b34d239c5d5904272cae9a/FLAG39d624e7e [2020-09-25 07:45:17,087 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c08990a02/438d0ca2e8b34d239c5d5904272cae9a [2020-09-25 07:45:17,100 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:45:17,106 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:45:17,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:45:17,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:45:17,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:45:17,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:45:17" (1/1) ... [2020-09-25 07:45:17,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9103a33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:17, skipping insertion in model container [2020-09-25 07:45:17,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:45:17" (1/1) ... [2020-09-25 07:45:17,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:45:17,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:45:17,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:45:17,405 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:45:17,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:45:17,447 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:45:17,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:17 WrapperNode [2020-09-25 07:45:17,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:45:17,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:45:17,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:45:17,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:45:17,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:17" (1/1) ... [2020-09-25 07:45:17,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:17" (1/1) ... [2020-09-25 07:45:17,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:17" (1/1) ... [2020-09-25 07:45:17,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:17" (1/1) ... [2020-09-25 07:45:17,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:17" (1/1) ... [2020-09-25 07:45:17,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:17" (1/1) ... [2020-09-25 07:45:17,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:17" (1/1) ... [2020-09-25 07:45:17,572 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:45:17,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:45:17,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:45:17,573 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:45:17,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:17" (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 07:45:17,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:45:17,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:45:17,657 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-25 07:45:17,657 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-25 07:45:17,657 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:45:17,658 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:45:17,658 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:45:17,658 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-25 07:45:17,658 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-25 07:45:17,658 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:45:17,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:45:17,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:45:17,892 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:45:17,892 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 07:45:17,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:45:17 BoogieIcfgContainer [2020-09-25 07:45:17,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:45:17,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:45:17,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:45:17,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:45:17,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:45:17" (1/3) ... [2020-09-25 07:45:17,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ddb516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:45:17, skipping insertion in model container [2020-09-25 07:45:17,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:17" (2/3) ... [2020-09-25 07:45:17,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ddb516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:45:17, skipping insertion in model container [2020-09-25 07:45:17,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:45:17" (3/3) ... [2020-09-25 07:45:17,908 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-2.c [2020-09-25 07:45:17,920 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:45:17,930 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:45:17,968 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:45:18,038 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:45:18,038 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:45:18,039 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:45:18,039 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:45:18,039 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:45:18,039 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:45:18,039 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:45:18,039 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:45:18,064 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-25 07:45:18,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 07:45:18,072 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:18,073 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:18,073 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:18,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:18,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-25 07:45:18,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:18,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1079219680] [2020-09-25 07:45:18,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:18,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:18,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:18,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:18,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:45:18,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:45:18,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-09-25 07:45:18,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:18,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:18,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:18,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 07:45:18,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:18,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:45:18,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:18,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:18,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:18,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:18,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:18,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:45:18,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:18,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:18,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:18,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:18,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:18,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:45:18,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:18,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:18,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:18,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:18,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:18,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:18,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 07:45:18,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:18,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:18,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:45:18,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:18,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:45:18,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:18,607 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 07:45:18,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1079219680] [2020-09-25 07:45:18,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:45:18,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:45:18,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847876812] [2020-09-25 07:45:18,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:45:18,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:18,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:45:18,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:45:18,643 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-25 07:45:18,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:18,737 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-25 07:45:18,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 07:45:18,740 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 07:45:18,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:18,755 INFO L225 Difference]: With dead ends: 58 [2020-09-25 07:45:18,755 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 07:45:18,760 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 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 07:45:18,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 07:45:18,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 07:45:18,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 07:45:18,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 07:45:18,823 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-25 07:45:18,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:18,824 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 07:45:18,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:45:18,825 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 07:45:18,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 07:45:18,827 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:18,827 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:18,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:45:18,828 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:18,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:18,829 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-25 07:45:18,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:18,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [550621844] [2020-09-25 07:45:18,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:18,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:18,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:19,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:19,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 07:45:19,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:45:19,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-09-25 07:45:19,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:19,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:19,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:19,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:19,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:19,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:19,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:19,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:19,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:19,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:19,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:19,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:19,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:45:19,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:19,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:19,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:19,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:19,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:19,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:19,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:19,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:19,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:19,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:19,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:19,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:19,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 07:45:19,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:19,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:19,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:19,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:19,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:19,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:19,155 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 07:45:19,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [550621844] [2020-09-25 07:45:19,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:45:19,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:45:19,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452430059] [2020-09-25 07:45:19,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:45:19,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:19,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:45:19,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:45:19,160 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-25 07:45:19,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:19,222 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-25 07:45:19,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:45:19,223 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 07:45:19,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:19,225 INFO L225 Difference]: With dead ends: 50 [2020-09-25 07:45:19,226 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 07:45:19,227 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 07:45:19,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 07:45:19,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 07:45:19,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 07:45:19,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 07:45:19,238 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-25 07:45:19,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:19,239 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 07:45:19,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:45:19,239 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 07:45:19,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 07:45:19,241 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:19,241 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:19,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:45:19,242 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:19,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:19,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-25 07:45:19,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:19,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1234293595] [2020-09-25 07:45:19,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:19,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:19,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:19,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:19,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:21,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 07:45:21,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:45:21,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1797 [2020-09-25 07:45:21,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:21,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:21,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:21,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 07:45:21,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 07:45:21,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:45:21,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:21,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:21,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:21,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:21,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:21,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:45:21,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:21,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:21,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:21,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:21,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:21,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:21,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:21,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:21,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:21,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:45:21,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:45:21,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-09-25 07:45:21,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:21,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:21,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:45:21,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:21,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 07:45:21,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:21,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:21,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:21,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:21,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:21,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 07:45:21,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:21,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:21,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:45:21,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:21,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:45:21,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:21,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:21,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:21,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:21,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:21,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:21,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 07:45:21,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:21,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:21,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:21,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:21,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:21,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:45:21,652 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 07:45:21,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1234293595] [2020-09-25 07:45:21,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:45:21,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 07:45:21,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905051255] [2020-09-25 07:45:21,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:45:21,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:21,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:45:21,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:45:21,661 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 8 states. [2020-09-25 07:45:21,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:21,783 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2020-09-25 07:45:21,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 07:45:21,785 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2020-09-25 07:45:21,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:21,787 INFO L225 Difference]: With dead ends: 63 [2020-09-25 07:45:21,788 INFO L226 Difference]: Without dead ends: 57 [2020-09-25 07:45:21,790 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:45:21,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-09-25 07:45:21,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2020-09-25 07:45:21,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 07:45:21,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-09-25 07:45:21,809 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 33 [2020-09-25 07:45:21,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:21,810 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-09-25 07:45:21,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:45:21,810 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-09-25 07:45:21,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 07:45:21,815 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:21,815 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:21,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:45:21,816 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:21,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:21,817 INFO L82 PathProgramCache]: Analyzing trace with hash -159162515, now seen corresponding path program 1 times [2020-09-25 07:45:21,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:21,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [249921539] [2020-09-25 07:45:21,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:21,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:22,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:25,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:25,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 07:45:25,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:45:25,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3398 [2020-09-25 07:45:25,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:25,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:25,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:25,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 07:45:25,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:45:25,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:25,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:25,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:25,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:25,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:25,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:25,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:25,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:25,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:25,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:25,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:25,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:25,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:25,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:25,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:25,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:25,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:25,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:25,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:25,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:26,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:26,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 07:45:26,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:45:26,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 867 [2020-09-25 07:45:26,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:26,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:26,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:45:26,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:26,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 07:45:26,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:26,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:26,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:26,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:26,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:26,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:26,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:45:26,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:26,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:26,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:45:26,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:26,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:45:26,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:26,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:26,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:26,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:26,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:26,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:26,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 07:45:26,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:26,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:26,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:26,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:26,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:26,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:26,261 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 07:45:26,261 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [249921539] [2020-09-25 07:45:26,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:26,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 07:45:26,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063158240] [2020-09-25 07:45:26,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:45:26,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:26,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:45:26,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:45:26,264 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 9 states. [2020-09-25 07:45:26,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:26,399 INFO L93 Difference]: Finished difference Result 69 states and 83 transitions. [2020-09-25 07:45:26,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:45:26,399 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2020-09-25 07:45:26,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:26,402 INFO L225 Difference]: With dead ends: 69 [2020-09-25 07:45:26,402 INFO L226 Difference]: Without dead ends: 63 [2020-09-25 07:45:26,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-09-25 07:45:26,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-25 07:45:26,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 52. [2020-09-25 07:45:26,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-25 07:45:26,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 64 transitions. [2020-09-25 07:45:26,414 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 64 transitions. Word has length 34 [2020-09-25 07:45:26,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:26,415 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 64 transitions. [2020-09-25 07:45:26,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:45:26,415 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 64 transitions. [2020-09-25 07:45:26,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 07:45:26,416 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:26,417 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:26,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:45:26,417 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:26,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:26,418 INFO L82 PathProgramCache]: Analyzing trace with hash 887160861, now seen corresponding path program 2 times [2020-09-25 07:45:26,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:26,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [452895746] [2020-09-25 07:45:26,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:26,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:26,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:26,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:26,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:27,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 07:45:27,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:45:27,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 933 [2020-09-25 07:45:27,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:27,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:27,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:27,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 07:45:27,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 07:45:27,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:27,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:27,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:27,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:27,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:27,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:27,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:27,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:27,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:27,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:27,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:27,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:27,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:27,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:27,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:27,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:27,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 07:45:27,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:27,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 07:45:27,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:27,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:27,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:45:27,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:27,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 07:45:27,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:27,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:27,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:27,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:27,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:27,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:45:27,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:27,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:27,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:45:27,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:27,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:27,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:27,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:45:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:27,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:27,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:27,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:27,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 07:45:27,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:27,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:27,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:27,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:27,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:27,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:27,561 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 07:45:27,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [452895746] [2020-09-25 07:45:27,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:27,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 07:45:27,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136622739] [2020-09-25 07:45:27,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:45:27,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:27,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:45:27,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:45:27,565 INFO L87 Difference]: Start difference. First operand 52 states and 64 transitions. Second operand 9 states. [2020-09-25 07:45:27,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:27,661 INFO L93 Difference]: Finished difference Result 71 states and 88 transitions. [2020-09-25 07:45:27,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:45:27,665 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2020-09-25 07:45:27,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:27,667 INFO L225 Difference]: With dead ends: 71 [2020-09-25 07:45:27,667 INFO L226 Difference]: Without dead ends: 65 [2020-09-25 07:45:27,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:45:27,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-09-25 07:45:27,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 54. [2020-09-25 07:45:27,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 07:45:27,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 69 transitions. [2020-09-25 07:45:27,689 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 69 transitions. Word has length 34 [2020-09-25 07:45:27,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:27,689 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 69 transitions. [2020-09-25 07:45:27,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:45:27,690 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 69 transitions. [2020-09-25 07:45:27,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 07:45:27,696 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:27,696 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:27,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:45:27,697 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:27,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:27,697 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-25 07:45:27,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:27,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1522524187] [2020-09-25 07:45:27,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:27,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:27,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:29,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:29,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 07:45:29,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:45:29,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1453 [2020-09-25 07:45:29,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:29,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:29,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:29,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 07:45:29,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:45:29,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:45:29,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:29,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:29,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:29,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:29,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:29,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:45:29,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:29,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:29,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:29,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:29,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:29,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:29,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:29,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:29,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:29,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:29,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:29,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 07:45:29,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:45:29,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 508 [2020-09-25 07:45:29,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:29,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:29,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:45:29,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:29,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:45:29,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:29,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:29,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:29,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:29,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:29,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:29,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:45:29,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:29,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:29,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:45:29,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:29,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:29,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:29,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:45:29,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:29,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:29,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:29,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:29,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:29,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 07:45:29,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:29,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:29,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:29,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:29,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:29,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:29,817 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 07:45:29,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1522524187] [2020-09-25 07:45:29,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:29,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 07:45:29,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735545797] [2020-09-25 07:45:29,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:45:29,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:29,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:45:29,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:45:29,821 INFO L87 Difference]: Start difference. First operand 54 states and 69 transitions. Second operand 9 states. [2020-09-25 07:45:29,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:29,922 INFO L93 Difference]: Finished difference Result 75 states and 92 transitions. [2020-09-25 07:45:29,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:45:29,925 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2020-09-25 07:45:29,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:29,929 INFO L225 Difference]: With dead ends: 75 [2020-09-25 07:45:29,929 INFO L226 Difference]: Without dead ends: 69 [2020-09-25 07:45:29,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:45:29,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-09-25 07:45:29,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 50. [2020-09-25 07:45:29,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 07:45:29,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-09-25 07:45:29,947 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 35 [2020-09-25 07:45:29,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:29,947 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-09-25 07:45:29,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:45:29,947 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-09-25 07:45:29,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-25 07:45:29,950 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:29,950 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:29,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:45:29,954 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:29,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:29,954 INFO L82 PathProgramCache]: Analyzing trace with hash -2066677686, now seen corresponding path program 1 times [2020-09-25 07:45:29,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:29,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1575287313] [2020-09-25 07:45:29,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:29,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:29,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:30,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:30,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:30,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:30,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:32,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:34,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:34,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 07:45:34,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:45:34,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 07:45:34,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:34,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:34,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:34,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:34,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 07:45:34,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:34,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:34,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:34,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:34,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:34,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:34,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:34,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:34,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:34,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:34,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:34,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:34,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:34,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:34,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:35,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:35,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:36,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:37,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 07:45:37,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:45:37,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2391 [2020-09-25 07:45:37,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:37,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:37,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:37,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:37,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 07:45:37,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:37,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:37,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:37,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:37,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:37,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:45:37,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:37,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:37,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:37,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:37,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:37,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:37,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:37,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:37,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:45:37,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:45:37,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-25 07:45:37,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:37,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:37,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:45:37,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:37,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:45:37,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:37,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:37,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:37,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:37,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:37,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:37,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:45:37,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:37,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:37,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:37,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:37,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:37,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:37,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:37,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:37,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:37,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:37,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:37,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:45:37,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:37,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:37,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:37,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:37,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:37,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:37,739 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 07:45:37,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1575287313] [2020-09-25 07:45:37,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:37,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 07:45:37,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449083981] [2020-09-25 07:45:37,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:45:37,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:37,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:45:37,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:45:37,743 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 9 states. [2020-09-25 07:45:37,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:37,948 INFO L93 Difference]: Finished difference Result 74 states and 95 transitions. [2020-09-25 07:45:37,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 07:45:37,948 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2020-09-25 07:45:37,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:37,950 INFO L225 Difference]: With dead ends: 74 [2020-09-25 07:45:37,951 INFO L226 Difference]: Without dead ends: 68 [2020-09-25 07:45:37,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:45:37,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-25 07:45:37,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 58. [2020-09-25 07:45:37,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 07:45:37,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 72 transitions. [2020-09-25 07:45:37,974 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 72 transitions. Word has length 50 [2020-09-25 07:45:37,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:37,977 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 72 transitions. [2020-09-25 07:45:37,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:45:37,977 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 72 transitions. [2020-09-25 07:45:37,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 07:45:37,979 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:37,980 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:37,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 07:45:37,980 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:37,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:37,983 INFO L82 PathProgramCache]: Analyzing trace with hash -387134248, now seen corresponding path program 1 times [2020-09-25 07:45:37,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:37,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [968154809] [2020-09-25 07:45:37,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:37,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:37,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:39,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:40,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:40,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:42,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:42,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:43,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 07:45:43,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 07:45:43,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 07:45:43,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:43,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:43,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:43,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:43,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 07:45:43,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:43,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:43,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:43,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:43,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:43,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:43,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:43,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:43,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:43,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:43,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:43,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:43,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:43,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:43,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:43,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:44,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:48,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 07:45:48,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 07:45:48,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 07:45:48,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:48,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:48,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:45:48,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 07:45:48,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 07:45:48,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:48,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:48,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:48,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:48,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 07:45:48,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:45:48,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-09-25 07:45:48,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:48,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:48,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:48,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:48,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 07:45:48,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:48,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:48,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:48,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:48,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:48,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:48,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 07:45:48,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:48,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:48,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:48,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:48,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:45:48,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:48,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:45:48,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:48,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:48,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:48,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:48,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:45:48,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:48,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:48,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:48,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:48,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:48,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:48,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 07:45:48,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:48,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:48,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 07:45:48,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:45:48,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-25 07:45:48,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:48,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:48,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:48,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:48,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:45:48,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:48,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:48,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:48,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:48,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:48,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:48,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:45:48,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:48,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:48,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:48,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:48,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:48,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:48,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:45:48,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:48,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:48,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:48,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:48,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:45:48,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:48,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:48,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:48,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:48,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:48,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:48,602 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 10 proven. 22 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-09-25 07:45:48,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [968154809] [2020-09-25 07:45:48,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:48,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 07:45:48,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372842631] [2020-09-25 07:45:48,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 07:45:48,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:48,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 07:45:48,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:45:48,604 INFO L87 Difference]: Start difference. First operand 58 states and 72 transitions. Second operand 11 states. [2020-09-25 07:45:49,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:49,111 INFO L93 Difference]: Finished difference Result 148 states and 230 transitions. [2020-09-25 07:45:49,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 07:45:49,112 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 69 [2020-09-25 07:45:49,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:49,119 INFO L225 Difference]: With dead ends: 148 [2020-09-25 07:45:49,119 INFO L226 Difference]: Without dead ends: 96 [2020-09-25 07:45:49,125 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2020-09-25 07:45:49,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-09-25 07:45:49,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 84. [2020-09-25 07:45:49,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-09-25 07:45:49,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 111 transitions. [2020-09-25 07:45:49,153 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 111 transitions. Word has length 69 [2020-09-25 07:45:49,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:49,154 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 111 transitions. [2020-09-25 07:45:49,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 07:45:49,154 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 111 transitions. [2020-09-25 07:45:49,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-09-25 07:45:49,161 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:49,162 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:49,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 07:45:49,162 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:49,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:49,165 INFO L82 PathProgramCache]: Analyzing trace with hash 2120760888, now seen corresponding path program 2 times [2020-09-25 07:45:49,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:49,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1657592995] [2020-09-25 07:45:49,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:49,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:49,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:49,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:49,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:49,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:49,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:49,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:49,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:49,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:49,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:49,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:51,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:51,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:51,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:54,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-25 07:45:54,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 07:45:54,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 07:45:54,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:54,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:54,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 07:45:54,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 07:45:54,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 07:45:54,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:54,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:54,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:54,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:54,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:54,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:54,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:54,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:54,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:54,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:54,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:54,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:54,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:54,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:54,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:54,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:55,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:55,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:55,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:55,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:55,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:59,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:59,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-25 07:45:59,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-09-25 07:45:59,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 07:45:59,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:59,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:59,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:45:59,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 07:45:59,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 07:45:59,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:59,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:59,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:59,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:59,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:59,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:59,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:59,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 07:45:59,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:45:59,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 667 [2020-09-25 07:45:59,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:59,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:59,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:59,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 07:45:59,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 07:45:59,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:59,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:59,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:59,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:59,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:59,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:00,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:00,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:00,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:46:00,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:46:00,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-25 07:46:00,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:00,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:00,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:46:00,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:00,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:46:00,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:00,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:00,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:00,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:00,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:46:00,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:00,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:46:00,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:00,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:00,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:46:00,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:00,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:46:00,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:00,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:46:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:00,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:00,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:00,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:46:00,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:00,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:46:00,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:00,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:00,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:46:00,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:00,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:46:00,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:00,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 07:46:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:00,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:00,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:00,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:46:00,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:00,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:46:00,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:00,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:00,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:46:00,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:46:00,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:46:00,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:00,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 07:46:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:00,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:00,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:00,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:00,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:00,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:00,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:00,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 07:46:00,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:46:00,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 709 [2020-09-25 07:46:00,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:00,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:00,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:00,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-09-25 07:46:00,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:00,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:00,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:00,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:00,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:00,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:00,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:46:00,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:46:00,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 07:46:00,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:00,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:00,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:00,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:00,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:00,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:00,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:00,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:00,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:00,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:46:00,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:00,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:46:00,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:00,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:00,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:00,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:00,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:00,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:00,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:46:00,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:00,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:00,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:00,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:46:00,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:00,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:46:00,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:00,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:00,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:00,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:00,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:00,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:00,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 07:46:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:00,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:00,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:00,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:46:00,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:00,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:46:00,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:00,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:00,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:00,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:00,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:00,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:00,930 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 26 proven. 40 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-09-25 07:46:00,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1657592995] [2020-09-25 07:46:00,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:46:00,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 07:46:00,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559200822] [2020-09-25 07:46:00,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:46:00,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:46:00,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:46:00,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:46:00,933 INFO L87 Difference]: Start difference. First operand 84 states and 111 transitions. Second operand 10 states. [2020-09-25 07:46:01,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:46:01,181 INFO L93 Difference]: Finished difference Result 166 states and 241 transitions. [2020-09-25 07:46:01,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 07:46:01,182 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 101 [2020-09-25 07:46:01,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:46:01,184 INFO L225 Difference]: With dead ends: 166 [2020-09-25 07:46:01,184 INFO L226 Difference]: Without dead ends: 88 [2020-09-25 07:46:01,185 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2020-09-25 07:46:01,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-25 07:46:01,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 80. [2020-09-25 07:46:01,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-09-25 07:46:01,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 103 transitions. [2020-09-25 07:46:01,195 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 103 transitions. Word has length 101 [2020-09-25 07:46:01,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:46:01,196 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 103 transitions. [2020-09-25 07:46:01,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:46:01,196 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 103 transitions. [2020-09-25 07:46:01,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 07:46:01,198 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:46:01,198 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:46:01,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 07:46:01,198 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:46:01,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:46:01,199 INFO L82 PathProgramCache]: Analyzing trace with hash -594280133, now seen corresponding path program 1 times [2020-09-25 07:46:01,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:46:01,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1011915888] [2020-09-25 07:46:01,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:46:01,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:01,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:01,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:01,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:01,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:01,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:01,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:03,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:03,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:03,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:04,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:04,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:05,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:05,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:06,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:06,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:06,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:06,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 07:46:06,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 07:46:06,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 07:46:06,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:06,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:06,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:46:06,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:46:06,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-25 07:46:06,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:06,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:46:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:06,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:06,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:06,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:46:06,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:06,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:46:06,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:06,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:06,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:06,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:06,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:06,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:06,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:46:06,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:06,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:06,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:06,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:06,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:06,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:06,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:07,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:07,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:07,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:07,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:08,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking...