/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 SequenceOfStatements --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=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_o20.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 07:36:07,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 07:36:07,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 07:36:07,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 07:36:07,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 07:36:07,648 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 07:36:07,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 07:36:07,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 07:36:07,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 07:36:07,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 07:36:07,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 07:36:07,656 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 07:36:07,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 07:36:07,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 07:36:07,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 07:36:07,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 07:36:07,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 07:36:07,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 07:36:07,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 07:36:07,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 07:36:07,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 07:36:07,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 07:36:07,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 07:36:07,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 07:36:07,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 07:36:07,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 07:36:07,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 07:36:07,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 07:36:07,673 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 07:36:07,674 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 07:36:07,674 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 07:36:07,675 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 07:36:07,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 07:36:07,676 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 07:36:07,677 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 07:36:07,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 07:36:07,678 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 07:36:07,678 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 07:36:07,679 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 07:36:07,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 07:36:07,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 07:36:07,686 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 [2020-10-14 07:36:07,732 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 07:36:07,734 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 07:36:07,736 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 07:36:07,736 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 07:36:07,736 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 07:36:07,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 07:36:07,736 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 07:36:07,737 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 07:36:07,737 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 07:36:07,740 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 07:36:07,740 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 07:36:07,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 07:36:07,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 07:36:07,741 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 07:36:07,741 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 07:36:07,741 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 07:36:07,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 07:36:07,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 07:36:07,742 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 07:36:07,742 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 07:36:07,742 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 07:36:07,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:36:07,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 07:36:07,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 07:36:07,744 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 07:36:07,745 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 07:36:07,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 07:36:07,745 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 07:36:07,745 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 07:36:07,746 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 -> SequenceOfStatements 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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 07:36:08,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 07:36:08,105 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 07:36:08,108 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 07:36:08,110 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 07:36:08,110 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 07:36:08,111 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_o20.c [2020-10-14 07:36:08,174 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c08f3fde2/f1f3790662ee4d3f8aeba2a2fbfa4fd7/FLAG14ae2e1ee [2020-10-14 07:36:08,597 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 07:36:08,598 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_o20.c [2020-10-14 07:36:08,604 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c08f3fde2/f1f3790662ee4d3f8aeba2a2fbfa4fd7/FLAG14ae2e1ee [2020-10-14 07:36:08,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c08f3fde2/f1f3790662ee4d3f8aeba2a2fbfa4fd7 [2020-10-14 07:36:08,977 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 07:36:08,979 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 07:36:08,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 07:36:08,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 07:36:08,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 07:36:08,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:36:08" (1/1) ... [2020-10-14 07:36:08,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45368341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:36:08, skipping insertion in model container [2020-10-14 07:36:08,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:36:08" (1/1) ... [2020-10-14 07:36:08,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 07:36:09,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 07:36:09,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:36:09,185 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 07:36:09,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:36:09,214 INFO L208 MainTranslator]: Completed translation [2020-10-14 07:36:09,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:36:09 WrapperNode [2020-10-14 07:36:09,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 07:36:09,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 07:36:09,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 07:36:09,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 07:36:09,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:36:09" (1/1) ... [2020-10-14 07:36:09,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:36:09" (1/1) ... [2020-10-14 07:36:09,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:36:09" (1/1) ... [2020-10-14 07:36:09,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:36:09" (1/1) ... [2020-10-14 07:36:09,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:36:09" (1/1) ... [2020-10-14 07:36:09,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:36:09" (1/1) ... [2020-10-14 07:36:09,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:36:09" (1/1) ... [2020-10-14 07:36:09,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 07:36:09,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 07:36:09,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 07:36:09,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 07:36:09,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:36:09" (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 [2020-10-14 07:36:09,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 07:36:09,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 07:36:09,400 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-10-14 07:36:09,400 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 07:36:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-14 07:36:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 07:36:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-10-14 07:36:09,401 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 07:36:09,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 07:36:09,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 07:36:09,545 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 07:36:09,546 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 07:36:09,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:36:09 BoogieIcfgContainer [2020-10-14 07:36:09,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 07:36:09,551 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 07:36:09,551 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 07:36:09,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 07:36:09,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:36:08" (1/3) ... [2020-10-14 07:36:09,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d523a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:36:09, skipping insertion in model container [2020-10-14 07:36:09,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:36:09" (2/3) ... [2020-10-14 07:36:09,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d523a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:36:09, skipping insertion in model container [2020-10-14 07:36:09,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:36:09" (3/3) ... [2020-10-14 07:36:09,558 INFO L109 eAbstractionObserver]: Analyzing ICFG id_o20.c [2020-10-14 07:36:09,568 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 07:36:09,575 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 07:36:09,589 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 07:36:09,614 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 07:36:09,614 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 07:36:09,614 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 07:36:09,614 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 07:36:09,614 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 07:36:09,615 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 07:36:09,615 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 07:36:09,615 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 07:36:09,633 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-10-14 07:36:09,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-14 07:36:09,640 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:09,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:09,641 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:09,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:09,646 INFO L82 PathProgramCache]: Analyzing trace with hash -872342019, now seen corresponding path program 1 times [2020-10-14 07:36:09,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:09,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1530847299] [2020-10-14 07:36:09,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:09,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:09,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:09,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:09,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 07:36:09,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:09,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 07:36:09,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:09,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:09,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:36:09,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:36:09,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:36:09,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 07:36:10,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:10,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:10,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:10,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:10,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:10,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:10,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:36:10,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:10,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:10,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:10,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:10,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:10,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:10,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:10,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:10,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:10,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:10,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:10,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:10,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 07:36:10,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:10,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:10,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:36:10,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:10,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:36:10,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:10,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:36:10,171 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1530847299] [2020-10-14 07:36:10,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:36:10,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 07:36:10,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326317426] [2020-10-14 07:36:10,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 07:36:10,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:10,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 07:36:10,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 07:36:10,199 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2020-10-14 07:36:10,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:10,244 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2020-10-14 07:36:10,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 07:36:10,246 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-14 07:36:10,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:10,258 INFO L225 Difference]: With dead ends: 32 [2020-10-14 07:36:10,258 INFO L226 Difference]: Without dead ends: 18 [2020-10-14 07:36:10,262 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 07:36:10,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-14 07:36:10,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-14 07:36:10,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-14 07:36:10,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-10-14 07:36:10,307 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2020-10-14 07:36:10,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:10,308 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-10-14 07:36:10,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 07:36:10,308 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-10-14 07:36:10,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-14 07:36:10,310 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:10,310 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:10,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 07:36:10,311 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:10,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:10,312 INFO L82 PathProgramCache]: Analyzing trace with hash -953570577, now seen corresponding path program 1 times [2020-10-14 07:36:10,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:10,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [986533030] [2020-10-14 07:36:10,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:10,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:10,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:10,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 07:36:10,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:10,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-14 07:36:10,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:10,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:10,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:36:10,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-14 07:36:10,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:36:10,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:10,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:10,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:10,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:10,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:10,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:10,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:10,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:36:10,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:10,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:10,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:10,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:10,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:10,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:36:10,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:10,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:10,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:10,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:10,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:36:10,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:10,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 07:36:10,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:10,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:10,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:36:10,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:10,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:36:10,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:10,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:10,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:10,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:10,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:10,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:10,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:36:10,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:10,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:10,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:36:10,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:10,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:36:10,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:10,715 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-14 07:36:10,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [986533030] [2020-10-14 07:36:10,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:36:10,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 07:36:10,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668927060] [2020-10-14 07:36:10,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 07:36:10,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:10,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 07:36:10,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:36:10,720 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 7 states. [2020-10-14 07:36:10,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:10,748 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-10-14 07:36:10,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 07:36:10,749 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-14 07:36:10,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:10,750 INFO L225 Difference]: With dead ends: 25 [2020-10-14 07:36:10,750 INFO L226 Difference]: Without dead ends: 21 [2020-10-14 07:36:10,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:36:10,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-14 07:36:10,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-14 07:36:10,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-14 07:36:10,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-10-14 07:36:10,759 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 19 [2020-10-14 07:36:10,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:10,759 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-10-14 07:36:10,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 07:36:10,760 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-10-14 07:36:10,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-14 07:36:10,761 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:10,761 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:10,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 07:36:10,762 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:10,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:10,762 INFO L82 PathProgramCache]: Analyzing trace with hash 397359997, now seen corresponding path program 2 times [2020-10-14 07:36:10,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:10,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [250804317] [2020-10-14 07:36:10,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:10,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:10,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:10,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:10,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 07:36:10,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:10,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-14 07:36:10,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:10,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:10,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:36:10,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 07:36:10,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:36:10,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:11,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:11,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:11,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:11,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:11,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:11,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:36:11,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:11,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:11,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:11,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:11,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:11,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:36:11,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:11,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:11,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:11,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:11,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:36:11,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:11,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-14 07:36:11,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:11,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:11,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:36:11,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:11,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 07:36:11,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:11,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:11,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:11,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:11,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:11,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:36:11,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:11,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 07:36:11,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:11,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:11,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:36:11,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:11,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:36:11,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:11,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:11,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:11,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:11,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:11,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:11,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:11,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:36:11,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:11,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:11,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:36:11,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:11,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:36:11,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:11,288 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-14 07:36:11,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [250804317] [2020-10-14 07:36:11,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:36:11,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 07:36:11,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897430324] [2020-10-14 07:36:11,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:36:11,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:11,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:36:11,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:36:11,291 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 9 states. [2020-10-14 07:36:11,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:11,329 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-10-14 07:36:11,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 07:36:11,330 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-14 07:36:11,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:11,331 INFO L225 Difference]: With dead ends: 28 [2020-10-14 07:36:11,331 INFO L226 Difference]: Without dead ends: 24 [2020-10-14 07:36:11,332 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:36:11,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-14 07:36:11,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-14 07:36:11,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-14 07:36:11,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-10-14 07:36:11,338 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 25 [2020-10-14 07:36:11,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:11,339 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-10-14 07:36:11,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:36:11,339 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-10-14 07:36:11,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-14 07:36:11,340 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:11,340 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:11,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 07:36:11,341 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:11,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:11,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1198310127, now seen corresponding path program 3 times [2020-10-14 07:36:11,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:11,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1291417674] [2020-10-14 07:36:11,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:11,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:11,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:11,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:11,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 07:36:11,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:11,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-14 07:36:11,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:11,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:11,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 07:36:11,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-14 07:36:11,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 07:36:11,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:11,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:11,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:11,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:11,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:11,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:11,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:11,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:36:11,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:11,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:11,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:11,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:11,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:11,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:11,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:11,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:11,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:11,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:11,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:36:11,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:11,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-14 07:36:11,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:11,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:11,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:36:11,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:11,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 07:36:11,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:11,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:11,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:11,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:11,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:36:11,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:11,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 07:36:11,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:11,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:11,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:36:11,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:11,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 07:36:11,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:11,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:11,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:11,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:11,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:11,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:36:11,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:11,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 07:36:11,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:11,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:11,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:36:11,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:11,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:36:11,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:11,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:11,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:11,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:11,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:11,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:11,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:11,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:36:11,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:11,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:11,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:36:11,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:11,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:36:11,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 07:36:11,973 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-14 07:36:11,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1291417674] [2020-10-14 07:36:11,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:36:11,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 07:36:11,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217064328] [2020-10-14 07:36:11,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 07:36:11,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:11,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 07:36:11,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:36:11,979 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 11 states. [2020-10-14 07:36:12,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:12,076 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-10-14 07:36:12,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 07:36:12,077 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 31 [2020-10-14 07:36:12,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:12,079 INFO L225 Difference]: With dead ends: 31 [2020-10-14 07:36:12,082 INFO L226 Difference]: Without dead ends: 27 [2020-10-14 07:36:12,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:36:12,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-14 07:36:12,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-14 07:36:12,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-14 07:36:12,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-10-14 07:36:12,094 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 31 [2020-10-14 07:36:12,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:12,095 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-10-14 07:36:12,095 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 07:36:12,096 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-10-14 07:36:12,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-14 07:36:12,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:12,099 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:12,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 07:36:12,100 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:12,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:12,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1080764669, now seen corresponding path program 4 times [2020-10-14 07:36:12,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:12,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990716715] [2020-10-14 07:36:12,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:12,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:12,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:12,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:12,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 07:36:12,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:12,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-14 07:36:12,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:12,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:12,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:36:12,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-14 07:36:12,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 07:36:12,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:12,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:12,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:12,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:12,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:12,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:12,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:36:12,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:12,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:12,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:12,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:12,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:12,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:12,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:12,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:12,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:12,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:12,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:36:12,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:12,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-14 07:36:12,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:12,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:12,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:36:12,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:12,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:36:12,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:12,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:12,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:12,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:12,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:12,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:36:12,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:12,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 07:36:12,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:12,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:12,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:36:12,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:12,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 07:36:12,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:12,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:12,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:12,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:12,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:12,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:36:12,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:12,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 07:36:12,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:12,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:12,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:36:12,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:12,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 07:36:12,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:12,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:12,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:12,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:12,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:36:12,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:12,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 07:36:12,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:12,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:12,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:36:12,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:12,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:36:12,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:12,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:12,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:12,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:12,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:12,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:12,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:36:12,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:12,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:12,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:36:12,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:12,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:36:12,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:12,883 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-14 07:36:12,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990716715] [2020-10-14 07:36:12,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:36:12,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 07:36:12,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428235495] [2020-10-14 07:36:12,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 07:36:12,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:12,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 07:36:12,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-14 07:36:12,886 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 13 states. [2020-10-14 07:36:12,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:12,976 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-10-14 07:36:12,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 07:36:12,977 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 37 [2020-10-14 07:36:12,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:12,979 INFO L225 Difference]: With dead ends: 34 [2020-10-14 07:36:12,979 INFO L226 Difference]: Without dead ends: 30 [2020-10-14 07:36:12,980 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-14 07:36:12,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-14 07:36:12,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-14 07:36:12,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-14 07:36:12,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-10-14 07:36:12,986 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 37 [2020-10-14 07:36:12,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:12,987 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-10-14 07:36:12,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 07:36:12,987 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-10-14 07:36:12,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-14 07:36:12,988 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:12,989 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:12,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 07:36:12,989 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:12,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:12,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1752970513, now seen corresponding path program 5 times [2020-10-14 07:36:12,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:12,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730103943] [2020-10-14 07:36:12,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:13,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:13,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:13,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-14 07:36:13,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:13,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-14 07:36:13,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:13,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:13,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 07:36:13,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-14 07:36:13,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 07:36:13,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:13,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:13,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:13,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:13,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:13,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:13,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:13,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:36:13,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:13,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:13,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:13,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:13,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:13,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:13,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:13,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:13,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:13,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:13,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:36:13,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:13,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-10-14 07:36:13,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:13,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:13,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:36:13,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:13,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 07:36:13,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:13,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:13,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:13,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:13,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:36:13,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:13,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-14 07:36:13,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:13,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:13,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:36:13,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:13,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:36:13,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:13,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:13,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:13,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:13,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:36:13,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:13,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 07:36:13,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:13,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:13,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:36:13,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:13,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 07:36:13,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:13,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:13,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:13,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:13,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:36:13,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:13,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 07:36:13,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:13,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:13,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:36:13,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:13,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 07:36:13,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:13,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:13,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:13,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:13,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:13,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:36:13,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:13,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 07:36:13,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:13,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:13,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:36:13,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:13,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:36:13,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:14,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:14,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:14,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:14,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:14,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:14,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:14,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:36:14,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:14,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:14,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:36:14,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:14,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:36:14,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:14,090 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-14 07:36:14,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730103943] [2020-10-14 07:36:14,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:36:14,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 07:36:14,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978323589] [2020-10-14 07:36:14,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 07:36:14,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:14,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 07:36:14,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-10-14 07:36:14,093 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 15 states. [2020-10-14 07:36:14,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:14,185 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-10-14 07:36:14,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 07:36:14,186 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 43 [2020-10-14 07:36:14,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:14,187 INFO L225 Difference]: With dead ends: 37 [2020-10-14 07:36:14,187 INFO L226 Difference]: Without dead ends: 33 [2020-10-14 07:36:14,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-10-14 07:36:14,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-14 07:36:14,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-14 07:36:14,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-14 07:36:14,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-10-14 07:36:14,194 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 43 [2020-10-14 07:36:14,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:14,194 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-10-14 07:36:14,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 07:36:14,194 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-10-14 07:36:14,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-14 07:36:14,196 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:14,196 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:14,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 07:36:14,197 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:14,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:14,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1590630787, now seen corresponding path program 6 times [2020-10-14 07:36:14,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:14,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [283069439] [2020-10-14 07:36:14,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:14,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:14,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:14,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:14,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-14 07:36:14,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:14,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-10-14 07:36:14,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:14,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:14,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 07:36:14,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-10-14 07:36:14,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:36:14,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:14,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:14,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:14,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:14,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:14,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:14,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:14,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:36:14,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:14,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:14,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:14,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:14,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:14,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:14,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:14,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:14,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:14,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:36:14,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:14,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269 [2020-10-14 07:36:14,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:14,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:14,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:36:14,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:14,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 07:36:14,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:14,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:14,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:15,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:15,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:36:15,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:15,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-14 07:36:15,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:15,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:15,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:36:15,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:15,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 07:36:15,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:15,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:15,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:15,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:15,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:36:15,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:15,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 07:36:15,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:15,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:15,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:36:15,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:15,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:36:15,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:15,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:15,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:15,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:15,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:15,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:36:15,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:15,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 07:36:15,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:15,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:15,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:36:15,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:15,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 07:36:15,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:15,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:15,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:15,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:15,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:36:15,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:15,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 07:36:15,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:15,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:15,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:36:15,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:15,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 07:36:15,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:15,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:15,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:15,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:15,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:36:15,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:15,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 07:36:15,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:15,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:15,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:36:15,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:15,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:36:15,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:36:15,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:15,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:15,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:15,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:15,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:15,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:15,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:36:15,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:15,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:15,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:36:15,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:15,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:36:15,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:36:15,719 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-10-14 07:36:15,720 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [283069439] [2020-10-14 07:36:15,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:36:15,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 07:36:15,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659136495] [2020-10-14 07:36:15,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 07:36:15,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:15,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 07:36:15,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-10-14 07:36:15,724 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 17 states. [2020-10-14 07:36:15,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:15,878 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2020-10-14 07:36:15,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 07:36:15,878 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 49 [2020-10-14 07:36:15,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:15,880 INFO L225 Difference]: With dead ends: 40 [2020-10-14 07:36:15,880 INFO L226 Difference]: Without dead ends: 36 [2020-10-14 07:36:15,882 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-10-14 07:36:15,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-14 07:36:15,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-14 07:36:15,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-14 07:36:15,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-10-14 07:36:15,892 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 49 [2020-10-14 07:36:15,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:15,894 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-10-14 07:36:15,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 07:36:15,895 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-10-14 07:36:15,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-14 07:36:15,897 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:15,898 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:15,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 07:36:15,898 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:15,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:15,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1532150511, now seen corresponding path program 7 times [2020-10-14 07:36:15,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:15,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1936937989] [2020-10-14 07:36:15,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:15,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:16,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:16,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 07:36:16,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:16,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 400 [2020-10-14 07:36:16,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:16,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:16,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 07:36:16,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-14 07:36:16,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 07:36:16,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:16,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:16,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:16,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:16,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:16,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:16,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:36:16,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:16,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:16,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:16,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:16,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:16,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:16,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:16,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:16,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:16,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:36:16,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:16,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-10-14 07:36:16,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:16,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:16,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:36:16,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:16,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 07:36:16,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:16,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:16,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:16,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:17,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:17,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:36:17,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:17,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-14 07:36:17,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:17,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:17,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:36:17,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:17,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 07:36:17,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:17,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:17,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:17,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:17,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:17,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:36:17,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:17,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 07:36:17,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:17,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:17,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:36:17,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:17,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 07:36:17,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:17,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:17,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:17,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:17,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:36:17,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:17,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 07:36:17,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:17,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:17,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:36:17,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:17,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:36:17,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:17,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:17,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:17,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:17,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:17,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:36:17,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:17,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 07:36:17,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:17,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:17,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:36:17,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:17,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 07:36:17,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:17,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:17,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:17,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:17,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:17,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:36:17,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:17,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 07:36:17,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:17,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:17,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:36:17,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:17,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 07:36:17,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:17,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:17,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:17,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:17,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:36:17,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:17,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:36:17,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:17,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:17,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:36:17,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:17,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:36:17,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:17,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:17,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:17,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:17,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:17,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:17,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:17,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:36:17,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:17,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:17,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:36:17,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:17,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:36:17,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:17,765 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-10-14 07:36:17,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1936937989] [2020-10-14 07:36:17,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:36:17,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 07:36:17,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393718372] [2020-10-14 07:36:17,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 07:36:17,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:17,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 07:36:17,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-10-14 07:36:17,771 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 19 states. [2020-10-14 07:36:17,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:17,953 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-10-14 07:36:17,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 07:36:17,954 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 55 [2020-10-14 07:36:17,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:17,955 INFO L225 Difference]: With dead ends: 43 [2020-10-14 07:36:17,955 INFO L226 Difference]: Without dead ends: 39 [2020-10-14 07:36:17,956 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-10-14 07:36:17,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-14 07:36:17,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-14 07:36:17,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-14 07:36:17,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-10-14 07:36:17,962 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 55 [2020-10-14 07:36:17,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:17,963 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-10-14 07:36:17,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 07:36:17,963 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-10-14 07:36:17,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-14 07:36:17,964 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:17,964 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:17,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 07:36:17,965 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:17,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:17,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1140618237, now seen corresponding path program 8 times [2020-10-14 07:36:17,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:17,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [389914296] [2020-10-14 07:36:17,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:17,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:18,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:18,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 07:36:18,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:18,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 557 [2020-10-14 07:36:18,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:18,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:18,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 07:36:18,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-14 07:36:18,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 07:36:18,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:18,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:18,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:18,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:18,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:18,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:18,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:18,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:36:18,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:18,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:18,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:18,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:18,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:18,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:18,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:18,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:18,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:18,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:36:18,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:18,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 391 [2020-10-14 07:36:18,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:18,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:18,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:36:18,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:18,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 07:36:18,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:19,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:19,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:19,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:19,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:36:19,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:19,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-10-14 07:36:19,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:19,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:19,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:36:19,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:19,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 07:36:19,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:19,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:19,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:19,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:19,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:19,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:36:19,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:19,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-14 07:36:19,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:19,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:19,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:36:19,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:19,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 07:36:19,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:19,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:19,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:19,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:19,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:36:19,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:19,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 07:36:19,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:19,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:19,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:36:19,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:19,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 07:36:19,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:19,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:19,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:19,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:19,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:36:19,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:19,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 07:36:19,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:19,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:19,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:36:19,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:19,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:36:19,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:19,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:19,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:19,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:19,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:36:19,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:19,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 07:36:19,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:19,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:19,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:36:19,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:19,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 07:36:19,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:20,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:20,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:20,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:20,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:20,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:36:20,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:20,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 07:36:20,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:20,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:20,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:36:20,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:20,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 07:36:20,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:20,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:20,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:20,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:20,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:36:20,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:20,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 07:36:20,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:20,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:20,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:36:20,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:20,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:36:20,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:36:20,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:20,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:20,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:20,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:20,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:20,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:36:20,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:20,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:20,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:36:20,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:20,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:36:20,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:20,290 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-10-14 07:36:20,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [389914296] [2020-10-14 07:36:20,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:36:20,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 07:36:20,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58159694] [2020-10-14 07:36:20,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 07:36:20,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:20,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 07:36:20,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-10-14 07:36:20,303 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 21 states. [2020-10-14 07:36:20,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:20,510 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-10-14 07:36:20,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 07:36:20,510 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 61 [2020-10-14 07:36:20,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:20,512 INFO L225 Difference]: With dead ends: 46 [2020-10-14 07:36:20,512 INFO L226 Difference]: Without dead ends: 42 [2020-10-14 07:36:20,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-10-14 07:36:20,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-14 07:36:20,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-14 07:36:20,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-14 07:36:20,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-10-14 07:36:20,519 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 61 [2020-10-14 07:36:20,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:20,520 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-10-14 07:36:20,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 07:36:20,520 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-10-14 07:36:20,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 07:36:20,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:20,521 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:20,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 07:36:20,522 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:20,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:20,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1749177617, now seen corresponding path program 9 times [2020-10-14 07:36:20,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:20,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1280701897] [2020-10-14 07:36:20,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:20,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:20,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:21,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:21,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 07:36:21,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:21,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 504 [2020-10-14 07:36:21,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:21,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:21,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 07:36:21,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-14 07:36:21,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-14 07:36:21,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:21,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:21,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:21,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:21,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:21,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:21,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:36:21,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:21,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:21,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:21,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:21,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:21,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:21,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:21,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:21,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:21,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:36:21,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:21,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 530 [2020-10-14 07:36:21,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:21,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:21,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:36:21,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:21,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 07:36:21,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:21,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:21,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:22,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:22,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:36:22,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:22,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 368 [2020-10-14 07:36:22,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:22,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:22,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:36:22,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:22,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 07:36:22,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:22,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:22,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:22,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:22,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:36:22,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:22,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-10-14 07:36:22,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:22,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:22,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:36:22,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:22,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 07:36:22,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:22,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:22,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:22,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:22,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:22,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:36:22,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:22,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-14 07:36:22,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:22,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:22,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:36:22,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:22,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 07:36:22,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:22,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:22,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:22,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:22,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:36:22,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:22,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-14 07:36:22,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:22,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:22,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:36:22,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:22,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 07:36:22,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:22,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:22,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:22,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:22,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:22,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:36:22,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:22,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 07:36:22,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:22,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:22,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:36:22,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:22,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:36:22,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:22,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:22,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:22,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:23,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:23,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:36:23,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:23,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 07:36:23,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:23,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:23,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:36:23,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:23,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 07:36:23,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:23,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:23,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:23,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:23,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:36:23,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:23,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 07:36:23,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:23,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:23,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:36:23,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:23,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 07:36:23,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:23,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:23,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:23,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:23,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:23,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:36:23,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:23,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:36:23,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:23,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:23,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:36:23,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:23,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:36:23,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:23,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:23,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:23,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:23,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:23,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:23,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:23,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:36:23,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:23,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:23,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:36:23,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:23,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:36:23,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:23,351 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-14 07:36:23,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1280701897] [2020-10-14 07:36:23,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:36:23,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 07:36:23,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587546098] [2020-10-14 07:36:23,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 07:36:23,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:23,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 07:36:23,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-10-14 07:36:23,354 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 23 states. [2020-10-14 07:36:23,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:23,582 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-10-14 07:36:23,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 07:36:23,583 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 67 [2020-10-14 07:36:23,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:23,584 INFO L225 Difference]: With dead ends: 49 [2020-10-14 07:36:23,584 INFO L226 Difference]: Without dead ends: 45 [2020-10-14 07:36:23,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-10-14 07:36:23,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-14 07:36:23,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-10-14 07:36:23,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-14 07:36:23,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2020-10-14 07:36:23,601 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 67 [2020-10-14 07:36:23,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:23,601 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2020-10-14 07:36:23,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 07:36:23,602 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2020-10-14 07:36:23,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-14 07:36:23,605 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:23,605 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:23,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 07:36:23,606 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:23,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:23,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1580609155, now seen corresponding path program 10 times [2020-10-14 07:36:23,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:23,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1344818055] [2020-10-14 07:36:23,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:23,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:24,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:24,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 07:36:24,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:24,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 586 [2020-10-14 07:36:24,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:24,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:24,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 07:36:24,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-10-14 07:36:24,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 07:36:24,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:24,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:24,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:24,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:24,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:24,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:24,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:36:24,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:24,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:24,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:24,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:24,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:24,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:36:24,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:24,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:24,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:24,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:36:24,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:24,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 507 [2020-10-14 07:36:24,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:24,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:24,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:36:24,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:24,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 07:36:24,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:24,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:24,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:25,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:25,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:36:25,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:25,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 456 [2020-10-14 07:36:25,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:25,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:25,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:36:25,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:25,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 07:36:25,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:25,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:25,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:25,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:25,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:25,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:36:25,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:25,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-10-14 07:36:25,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:25,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:25,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:36:25,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:25,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 07:36:25,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:25,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:25,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:25,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:25,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:25,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:36:25,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:25,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-14 07:36:25,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:25,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:25,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:36:25,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:25,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 07:36:25,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:25,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:25,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:26,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:26,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:36:26,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:26,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-14 07:36:26,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:26,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:26,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:36:26,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:26,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 07:36:26,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:26,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:26,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:26,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:26,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:36:26,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:26,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-14 07:36:26,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:26,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:26,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:36:26,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:26,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 07:36:26,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:26,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:26,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:26,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:26,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:36:26,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:26,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 07:36:26,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:26,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:26,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:36:26,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:26,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:36:26,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:36:26,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:26,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:26,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:26,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:36:26,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:26,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 07:36:26,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:26,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:26,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:36:26,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:26,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 07:36:26,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:36:26,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:26,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:26,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:26,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:26,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:36:26,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:26,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 07:36:26,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:26,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:26,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:36:26,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:26,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 07:36:26,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:36:26,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:26,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:26,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:26,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:36:26,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:26,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:36:26,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:26,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:26,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:36:26,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:26,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:36:26,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:26,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:26,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:26,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:26,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:26,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:26,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:36:26,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:26,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:26,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:36:26,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:26,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:36:26,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:27,004 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-10-14 07:36:27,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1344818055] [2020-10-14 07:36:27,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:36:27,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-14 07:36:27,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502573619] [2020-10-14 07:36:27,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-14 07:36:27,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:27,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-14 07:36:27,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-10-14 07:36:27,009 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 25 states. [2020-10-14 07:36:27,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:27,279 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-10-14 07:36:27,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 07:36:27,280 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 73 [2020-10-14 07:36:27,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:27,282 INFO L225 Difference]: With dead ends: 52 [2020-10-14 07:36:27,282 INFO L226 Difference]: Without dead ends: 48 [2020-10-14 07:36:27,283 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-10-14 07:36:27,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-14 07:36:27,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-14 07:36:27,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-14 07:36:27,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-10-14 07:36:27,289 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 73 [2020-10-14 07:36:27,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:27,289 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-10-14 07:36:27,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-14 07:36:27,289 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-10-14 07:36:27,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-14 07:36:27,290 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:27,291 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:27,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 07:36:27,291 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:27,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:27,291 INFO L82 PathProgramCache]: Analyzing trace with hash -223837457, now seen corresponding path program 11 times [2020-10-14 07:36:27,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:27,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2037387368] [2020-10-14 07:36:27,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:27,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:27,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:28,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:28,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-14 07:36:28,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:28,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 737 [2020-10-14 07:36:28,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:28,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:28,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 07:36:28,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 07:36:28,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 07:36:28,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:28,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:28,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:28,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:28,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:28,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:28,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:36:28,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:28,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:28,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:28,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:28,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:28,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:28,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:28,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:28,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:28,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:28,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 07:36:28,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:28,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 485 [2020-10-14 07:36:28,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:28,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:28,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 07:36:28,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:28,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 07:36:28,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:28,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:28,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:29,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:29,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:36:29,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:29,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 392 [2020-10-14 07:36:29,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:29,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:29,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:36:29,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:29,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 07:36:29,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:29,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:29,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:29,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:29,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:29,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:36:29,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:29,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-14 07:36:29,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:29,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:29,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:36:29,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:29,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 07:36:29,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:29,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:29,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:29,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:29,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:36:29,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:29,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-10-14 07:36:29,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:29,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:29,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:36:29,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:29,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 07:36:29,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:29,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:29,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:29,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:29,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:29,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:36:29,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:29,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-14 07:36:29,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:29,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:29,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:36:29,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:29,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 07:36:29,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:29,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:29,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:30,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:30,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:36:30,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:30,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-14 07:36:30,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:30,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:30,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:36:30,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:30,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 07:36:30,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:30,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:30,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:30,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:30,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:36:30,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:30,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 07:36:30,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:30,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:30,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:36:30,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:30,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 07:36:30,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:30,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:30,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:30,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:30,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:30,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:36:30,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:30,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 07:36:30,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:30,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:30,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:36:30,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:30,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:36:30,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:30,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:30,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:30,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:30,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:36:30,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:30,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 07:36:30,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:30,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:30,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:36:30,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:30,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 07:36:30,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:30,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:30,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:30,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:30,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:36:30,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:30,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:36:30,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:30,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:30,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:36:30,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:30,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 07:36:30,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:30,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:30,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:30,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:30,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:30,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:36:30,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:30,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:36:30,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:30,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:30,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:36:30,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:30,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:36:30,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:30,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:30,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:30,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:30,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:30,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:30,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:36:30,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:30,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:30,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:36:30,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:30,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:36:30,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:30,769 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2020-10-14 07:36:30,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2037387368] [2020-10-14 07:36:30,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:36:30,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-14 07:36:30,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410884076] [2020-10-14 07:36:30,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-14 07:36:30,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:30,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-14 07:36:30,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-10-14 07:36:30,772 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 27 states. [2020-10-14 07:36:31,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:31,124 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-10-14 07:36:31,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-14 07:36:31,125 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 79 [2020-10-14 07:36:31,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:31,126 INFO L225 Difference]: With dead ends: 55 [2020-10-14 07:36:31,126 INFO L226 Difference]: Without dead ends: 51 [2020-10-14 07:36:31,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-10-14 07:36:31,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-14 07:36:31,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-14 07:36:31,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-14 07:36:31,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-10-14 07:36:31,134 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 79 [2020-10-14 07:36:31,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:31,134 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-10-14 07:36:31,134 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-14 07:36:31,134 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-10-14 07:36:31,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-14 07:36:31,135 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:31,135 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:31,136 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 07:36:31,136 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:31,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:31,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1653931773, now seen corresponding path program 12 times [2020-10-14 07:36:31,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:31,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2028134652] [2020-10-14 07:36:31,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:31,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:31,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:31,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 07:36:31,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:31,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 630 [2020-10-14 07:36:31,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:31,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:31,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 07:36:31,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-14 07:36:31,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 07:36:31,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:31,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:31,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:31,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:31,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:31,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:31,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:36:31,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:31,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:31,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:31,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:31,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:31,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:31,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:31,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:31,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:32,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:32,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 07:36:32,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:32,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 502 [2020-10-14 07:36:32,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:32,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:32,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 07:36:32,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:32,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-14 07:36:32,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:32,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:32,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:32,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:32,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:32,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 07:36:32,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:32,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 374 [2020-10-14 07:36:32,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:32,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:32,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 07:36:32,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:32,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 07:36:32,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:32,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:32,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:32,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:33,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:33,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:36:33,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:33,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-10-14 07:36:33,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:33,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:33,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:36:33,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:33,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 07:36:33,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:33,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:33,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:33,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:33,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:36:33,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:33,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-14 07:36:33,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:33,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:33,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:36:33,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:33,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 07:36:33,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:33,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:33,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:33,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:33,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:36:33,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:33,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-14 07:36:33,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:33,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:33,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:36:33,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:33,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 07:36:33,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:33,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:33,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:33,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:33,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:36:33,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:33,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 07:36:33,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:33,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:33,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:36:33,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:33,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 07:36:33,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:33,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:33,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:33,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:33,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:36:33,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:33,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 07:36:33,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:33,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:33,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:36:33,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:33,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 07:36:33,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:34,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:34,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:34,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:34,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:36:34,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:34,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 07:36:34,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:34,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:34,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:36:34,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:34,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 07:36:34,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:34,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:34,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:34,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:34,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:36:34,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:34,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 07:36:34,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:34,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:34,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:36:34,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:34,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:36:34,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:34,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:34,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:34,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:34,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:36:34,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:34,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 07:36:34,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:34,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:34,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:36:34,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:34,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 07:36:34,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:34,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:34,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:34,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:34,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:34,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:36:34,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:34,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 07:36:34,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:34,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:34,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:36:34,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:34,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 07:36:34,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:34,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:34,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:34,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:34,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:34,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:36:34,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:34,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:36:34,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:34,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:34,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:36:34,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:34,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:36:34,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:34,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:34,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:34,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:34,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:34,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:34,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:36:34,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:34,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:34,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:36:34,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:34,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:36:34,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:34,642 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-10-14 07:36:34,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2028134652] [2020-10-14 07:36:34,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:36:34,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-14 07:36:34,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725705578] [2020-10-14 07:36:34,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-14 07:36:34,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:34,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-14 07:36:34,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2020-10-14 07:36:34,644 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 29 states. [2020-10-14 07:36:35,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:35,048 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions. [2020-10-14 07:36:35,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-14 07:36:35,048 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 85 [2020-10-14 07:36:35,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:35,050 INFO L225 Difference]: With dead ends: 58 [2020-10-14 07:36:35,050 INFO L226 Difference]: Without dead ends: 54 [2020-10-14 07:36:35,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2020-10-14 07:36:35,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-14 07:36:35,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-14 07:36:35,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-14 07:36:35,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-10-14 07:36:35,059 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 85 [2020-10-14 07:36:35,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:35,059 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-10-14 07:36:35,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-14 07:36:35,060 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-10-14 07:36:35,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-14 07:36:35,060 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:35,061 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:35,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 07:36:35,061 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:35,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:35,061 INFO L82 PathProgramCache]: Analyzing trace with hash -218674449, now seen corresponding path program 13 times [2020-10-14 07:36:35,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:35,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [384985682] [2020-10-14 07:36:35,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:35,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:35,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:35,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-14 07:36:35,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:35,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 839 [2020-10-14 07:36:35,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:35,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:35,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 07:36:35,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 07:36:35,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 07:36:35,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:35,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:35,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:35,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:35,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:35,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:35,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:36:35,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:35,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:35,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:35,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:35,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:35,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:35,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:35,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:36,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:36,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 07:36:36,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:36,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 640 [2020-10-14 07:36:36,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:36,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:36,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-14 07:36:36,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:36,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 07:36:36,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:36,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:36,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:37,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:37,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 07:36:37,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:37,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 479 [2020-10-14 07:36:37,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:37,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:37,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 07:36:37,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:37,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-14 07:36:37,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:37,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:37,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:37,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:37,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:37,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 07:36:37,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:37,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 468 [2020-10-14 07:36:37,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:37,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:37,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 07:36:37,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:37,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 07:36:37,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:37,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:37,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:38,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:38,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:36:38,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:38,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 313 [2020-10-14 07:36:38,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:38,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:38,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:36:38,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:38,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 07:36:38,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:38,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:38,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:38,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:38,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:36:38,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:38,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-14 07:36:38,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:38,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:38,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:36:38,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:38,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 07:36:38,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:38,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:38,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:38,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:38,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:36:38,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:38,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-14 07:36:38,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:38,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:38,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:36:38,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:38,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 07:36:38,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:38,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:38,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:38,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:38,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:38,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:36:38,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:38,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-14 07:36:38,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:38,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:38,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:36:38,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:38,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 07:36:38,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:38,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:38,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:38,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:38,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:38,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:36:38,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:38,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 07:36:38,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:38,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:38,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:36:38,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:38,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 07:36:38,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:38,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:38,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:38,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:39,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:39,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:36:39,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:39,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-14 07:36:39,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:39,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:39,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:36:39,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:39,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 07:36:39,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 07:36:39,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:39,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:39,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:39,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:36:39,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:39,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 07:36:39,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:39,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:39,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:36:39,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:39,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:36:39,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:36:39,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:39,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:39,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:39,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:39,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:36:39,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:39,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 07:36:39,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:39,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:39,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:36:39,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:39,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 07:36:39,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:36:39,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:39,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:39,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:39,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:39,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:36:39,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:39,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 07:36:39,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:39,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:39,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:36:39,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:39,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 07:36:39,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:36:39,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:39,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:39,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:39,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:36:39,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:39,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:36:39,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:39,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:39,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:36:39,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:39,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:36:39,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:36:39,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:39,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:39,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:39,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:39,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:39,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:36:39,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:39,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:39,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:36:39,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:39,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:36:39,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:36:39,993 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2020-10-14 07:36:39,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [384985682] [2020-10-14 07:36:39,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:36:39,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-14 07:36:39,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138416424] [2020-10-14 07:36:39,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-14 07:36:39,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:39,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-14 07:36:39,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2020-10-14 07:36:39,998 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 31 states. [2020-10-14 07:36:40,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:40,451 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-10-14 07:36:40,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-14 07:36:40,451 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 91 [2020-10-14 07:36:40,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:40,452 INFO L225 Difference]: With dead ends: 61 [2020-10-14 07:36:40,453 INFO L226 Difference]: Without dead ends: 57 [2020-10-14 07:36:40,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2020-10-14 07:36:40,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-14 07:36:40,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-10-14 07:36:40,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-14 07:36:40,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2020-10-14 07:36:40,459 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 91 [2020-10-14 07:36:40,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:40,460 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2020-10-14 07:36:40,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-14 07:36:40,460 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2020-10-14 07:36:40,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-14 07:36:40,461 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:40,461 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:40,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 07:36:40,462 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:40,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:40,462 INFO L82 PathProgramCache]: Analyzing trace with hash 492436605, now seen corresponding path program 14 times [2020-10-14 07:36:40,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:40,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1668335101] [2020-10-14 07:36:40,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:40,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:40,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:41,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:41,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 07:36:41,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:41,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 789 [2020-10-14 07:36:41,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:41,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:41,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-14 07:36:41,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 07:36:41,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:36:41,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:41,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:41,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:41,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:41,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:41,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:41,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:36:41,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:41,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:41,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:41,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:41,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:41,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:41,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:41,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:42,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:42,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 07:36:42,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:42,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 691 [2020-10-14 07:36:42,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:42,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:42,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-14 07:36:42,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:42,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 07:36:42,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:42,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:42,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:43,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:43,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 07:36:43,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:43,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 957 [2020-10-14 07:36:43,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:43,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:43,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-14 07:36:43,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:43,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 07:36:43,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:43,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:43,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:43,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:43,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 07:36:43,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:43,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 476 [2020-10-14 07:36:43,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:43,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:43,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 07:36:43,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:43,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-14 07:36:43,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:43,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:43,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:44,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:44,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 07:36:44,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:44,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 464 [2020-10-14 07:36:44,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:44,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:44,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 07:36:44,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:44,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 07:36:44,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:44,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:44,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:44,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:44,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:36:44,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:44,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 313 [2020-10-14 07:36:44,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:44,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:44,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:36:44,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:44,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 07:36:44,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:44,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:44,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:44,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:44,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:36:44,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:44,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-10-14 07:36:44,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:44,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:44,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:36:44,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:44,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 07:36:44,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:44,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:44,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:44,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:44,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:36:44,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:44,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-14 07:36:44,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:44,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:44,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:36:44,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:44,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 07:36:44,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:45,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:45,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:45,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:45,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:45,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:36:45,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:45,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-14 07:36:45,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:45,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:45,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:36:45,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:45,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 07:36:45,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:45,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:45,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:45,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:45,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:36:45,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:45,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 07:36:45,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:45,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:45,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:36:45,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:45,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 07:36:45,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:45,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:45,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:45,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:45,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:36:45,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:45,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 07:36:45,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:45,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:45,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:36:45,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:45,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 07:36:45,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:45,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:45,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:45,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:45,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:36:45,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:45,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 07:36:45,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:45,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:45,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:36:45,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:45,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:36:45,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:45,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:45,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:45,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:45,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:45,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:36:45,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:45,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 07:36:45,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:45,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:45,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:36:45,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:45,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 07:36:45,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:45,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:45,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:45,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:45,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:36:45,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:45,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:36:45,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:45,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:45,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:36:45,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:45,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 07:36:45,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:45,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:45,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:45,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:45,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:45,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:36:45,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:45,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:36:45,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:45,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:45,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:36:45,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:45,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:36:45,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:45,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:45,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:45,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:45,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:45,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:45,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:36:45,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:45,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:45,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:36:45,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:45,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:36:45,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:36:46,107 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2020-10-14 07:36:46,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1668335101] [2020-10-14 07:36:46,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:36:46,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-14 07:36:46,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636636565] [2020-10-14 07:36:46,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-14 07:36:46,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:46,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-14 07:36:46,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=993, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 07:36:46,112 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand 33 states. [2020-10-14 07:36:46,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:46,596 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-10-14 07:36:46,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-14 07:36:46,597 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 97 [2020-10-14 07:36:46,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:46,598 INFO L225 Difference]: With dead ends: 64 [2020-10-14 07:36:46,598 INFO L226 Difference]: Without dead ends: 60 [2020-10-14 07:36:46,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=63, Invalid=993, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 07:36:46,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-14 07:36:46,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-14 07:36:46,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-14 07:36:46,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2020-10-14 07:36:46,611 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 97 [2020-10-14 07:36:46,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:46,612 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2020-10-14 07:36:46,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-14 07:36:46,613 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2020-10-14 07:36:46,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-14 07:36:46,613 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:46,614 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:46,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 07:36:46,614 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:46,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:46,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1083048687, now seen corresponding path program 15 times [2020-10-14 07:36:46,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:46,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733317431] [2020-10-14 07:36:46,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:46,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:47,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:47,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 07:36:47,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:47,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 948 [2020-10-14 07:36:47,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:47,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:47,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-14 07:36:47,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 07:36:47,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-14 07:36:47,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:47,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:47,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:47,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:47,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:47,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:47,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:47,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:36:47,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:47,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:47,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:47,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:47,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:47,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:47,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:47,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:47,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:48,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:48,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 07:36:48,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:48,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 846 [2020-10-14 07:36:48,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:48,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:48,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-14 07:36:48,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:48,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 07:36:48,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:48,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:48,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:48,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:49,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:49,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 07:36:49,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:49,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 710 [2020-10-14 07:36:49,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:49,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:49,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-14 07:36:49,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:49,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 07:36:49,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:49,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:49,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:49,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:49,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 07:36:49,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:49,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 581 [2020-10-14 07:36:49,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:49,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:49,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-14 07:36:49,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:49,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 07:36:49,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:49,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:49,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:49,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:50,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:50,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 07:36:50,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:50,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 492 [2020-10-14 07:36:50,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:50,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:50,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 07:36:50,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:50,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-14 07:36:50,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:50,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:50,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:50,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:50,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:50,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 07:36:50,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:50,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 379 [2020-10-14 07:36:50,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:50,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:50,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 07:36:50,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:50,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 07:36:50,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:50,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:50,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:50,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:51,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:51,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:36:51,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:51,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-10-14 07:36:51,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:51,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:51,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:36:51,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:51,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 07:36:51,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:51,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:51,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:51,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:51,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:51,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:36:51,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:51,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-14 07:36:51,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:51,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:51,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:36:51,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:51,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 07:36:51,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:51,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:51,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:51,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:51,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:51,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:36:51,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:51,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-14 07:36:51,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:51,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:51,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:36:51,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:51,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 07:36:51,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:51,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:51,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:51,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:51,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:36:51,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:51,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-14 07:36:51,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:51,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:51,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:36:51,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:51,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 07:36:51,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:52,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:52,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:52,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:52,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:52,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:36:52,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:52,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 07:36:52,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:52,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:52,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:36:52,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:52,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 07:36:52,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:52,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:52,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:52,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:52,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:36:52,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:52,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 07:36:52,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:52,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:52,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:36:52,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:52,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 07:36:52,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:52,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:52,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:52,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:52,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:52,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:36:52,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:52,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 07:36:52,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:52,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:52,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:36:52,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:52,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:36:52,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:52,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:52,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:52,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:52,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:52,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:36:52,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:52,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 07:36:52,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:52,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:52,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:36:52,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:52,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 07:36:52,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:52,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:52,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:52,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:52,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:36:52,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:52,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:36:52,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:52,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:52,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:36:52,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:52,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 07:36:52,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:52,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:52,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:52,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:52,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:52,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:36:52,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:52,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:36:52,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:52,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:52,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:36:52,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:52,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:36:52,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:52,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:52,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:52,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:52,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:52,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:52,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:52,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:36:52,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:52,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:52,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:36:52,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:52,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:36:52,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:52,875 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2020-10-14 07:36:52,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733317431] [2020-10-14 07:36:52,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:36:52,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-10-14 07:36:52,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473209038] [2020-10-14 07:36:52,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-10-14 07:36:52,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:52,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-10-14 07:36:52,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=1123, Unknown=0, NotChecked=0, Total=1190 [2020-10-14 07:36:52,878 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 35 states. [2020-10-14 07:36:53,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:53,441 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-10-14 07:36:53,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-14 07:36:53,441 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 103 [2020-10-14 07:36:53,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:53,442 INFO L225 Difference]: With dead ends: 67 [2020-10-14 07:36:53,442 INFO L226 Difference]: Without dead ends: 63 [2020-10-14 07:36:53,444 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=67, Invalid=1123, Unknown=0, NotChecked=0, Total=1190 [2020-10-14 07:36:53,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-14 07:36:53,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-10-14 07:36:53,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-14 07:36:53,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2020-10-14 07:36:53,453 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 103 [2020-10-14 07:36:53,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:53,454 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2020-10-14 07:36:53,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-10-14 07:36:53,454 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2020-10-14 07:36:53,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-14 07:36:53,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:53,456 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:53,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 07:36:53,456 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:53,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:53,456 INFO L82 PathProgramCache]: Analyzing trace with hash 404015613, now seen corresponding path program 16 times [2020-10-14 07:36:53,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:53,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [752218802] [2020-10-14 07:36:53,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:53,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:54,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:54,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-14 07:36:54,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:54,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1100 [2020-10-14 07:36:54,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:54,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:54,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-14 07:36:54,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-14 07:36:54,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 07:36:54,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:54,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:54,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:54,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:54,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:54,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:54,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:54,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:36:54,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:54,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:54,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:54,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:54,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:54,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:54,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:54,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:54,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:55,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:55,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 07:36:55,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:55,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 995 [2020-10-14 07:36:55,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:55,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:55,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-14 07:36:55,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:55,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 07:36:55,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:55,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:55,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:56,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:56,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 07:36:56,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:56,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 863 [2020-10-14 07:36:56,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:56,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:56,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-14 07:36:56,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:56,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 07:36:56,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:56,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:56,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:56,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:57,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:57,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 07:36:57,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:57,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 700 [2020-10-14 07:36:57,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:57,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:57,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-14 07:36:57,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:57,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 07:36:57,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:57,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:57,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:57,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:57,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:57,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 07:36:57,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:57,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 564 [2020-10-14 07:36:57,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:57,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:57,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-14 07:36:57,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:57,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 07:36:57,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:57,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:57,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:58,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:58,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 07:36:58,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:58,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 465 [2020-10-14 07:36:58,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:58,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:58,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 07:36:58,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:58,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-14 07:36:58,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:58,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:58,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:58,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:58,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 07:36:58,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:58,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 384 [2020-10-14 07:36:58,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:58,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:58,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 07:36:58,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:58,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 07:36:58,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:58,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:58,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:59,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:59,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:36:59,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:59,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-14 07:36:59,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:59,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:59,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:36:59,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:59,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 07:36:59,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:59,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:59,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:59,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:59,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:36:59,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:59,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-14 07:36:59,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:59,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:59,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:36:59,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:59,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 07:36:59,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:59,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:59,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:59,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:59,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:59,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:36:59,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:59,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-14 07:36:59,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:59,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:59,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:36:59,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:59,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 07:36:59,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:59,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:59,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:59,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:59,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:59,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:36:59,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:59,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 07:36:59,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:59,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:59,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:36:59,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:59,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 07:36:59,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:00,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:00,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:00,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:00,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:00,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:37:00,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:00,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 07:37:00,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:00,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:00,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:37:00,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:00,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 07:37:00,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:00,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:00,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:00,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:00,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:37:00,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:00,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 07:37:00,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:00,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:00,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:37:00,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:00,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 07:37:00,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:00,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:00,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:00,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:00,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:37:00,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:00,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 07:37:00,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:00,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:00,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:37:00,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:00,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:37:00,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:00,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:00,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:00,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:00,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:00,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:37:00,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:00,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 07:37:00,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:00,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:00,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:37:00,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:00,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 07:37:00,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:00,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:00,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:00,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:00,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:00,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:37:00,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:00,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:37:00,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:00,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:00,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:37:00,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:00,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 07:37:00,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:00,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:00,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:00,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:00,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:00,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:37:00,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:00,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:37:00,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:00,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:00,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:37:00,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:00,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:37:00,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:00,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:00,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:00,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:00,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:37:00,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:00,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:37:00,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:00,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:00,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:37:00,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:00,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:37:00,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:00,975 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2020-10-14 07:37:00,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [752218802] [2020-10-14 07:37:00,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:37:00,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2020-10-14 07:37:00,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187200805] [2020-10-14 07:37:00,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-10-14 07:37:00,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:37:00,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-10-14 07:37:00,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=1261, Unknown=0, NotChecked=0, Total=1332 [2020-10-14 07:37:00,977 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 37 states. [2020-10-14 07:37:01,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:37:01,608 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2020-10-14 07:37:01,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-14 07:37:01,609 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 109 [2020-10-14 07:37:01,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:37:01,610 INFO L225 Difference]: With dead ends: 70 [2020-10-14 07:37:01,610 INFO L226 Difference]: Without dead ends: 66 [2020-10-14 07:37:01,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=71, Invalid=1261, Unknown=0, NotChecked=0, Total=1332 [2020-10-14 07:37:01,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-14 07:37:01,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-14 07:37:01,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-14 07:37:01,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-10-14 07:37:01,619 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 109 [2020-10-14 07:37:01,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:37:01,619 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-10-14 07:37:01,619 INFO L480 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-10-14 07:37:01,619 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-10-14 07:37:01,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-14 07:37:01,621 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:37:01,621 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:37:01,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 07:37:01,621 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:37:01,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:37:01,622 INFO L82 PathProgramCache]: Analyzing trace with hash -464475409, now seen corresponding path program 17 times [2020-10-14 07:37:01,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:37:01,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1126963693] [2020-10-14 07:37:01,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:37:01,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:01,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:02,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:02,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-14 07:37:02,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:02,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1283 [2020-10-14 07:37:02,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:02,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:02,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-14 07:37:02,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-14 07:37:02,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 07:37:02,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:02,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:37:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:02,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:02,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:02,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:37:02,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:02,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:37:02,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:02,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:02,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:37:02,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:02,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:37:02,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:02,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:37:03,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:03,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:04,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:04,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 07:37:04,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:04,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1578 [2020-10-14 07:37:04,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:04,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:04,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-14 07:37:04,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:04,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 07:37:04,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:04,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:04,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:04,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:05,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:05,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 07:37:05,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:05,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1049 [2020-10-14 07:37:05,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:05,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:05,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-14 07:37:05,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:05,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 07:37:05,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:05,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:05,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:05,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:06,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:06,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 07:37:06,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:06,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 835 [2020-10-14 07:37:06,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:06,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:06,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-14 07:37:06,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:06,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 07:37:06,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:06,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:06,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:06,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:07,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:07,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 07:37:07,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:07,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 666 [2020-10-14 07:37:07,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:07,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:07,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-14 07:37:07,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:07,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 07:37:07,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:07,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:07,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:07,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:07,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:07,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 07:37:07,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:07,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 596 [2020-10-14 07:37:07,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:07,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:07,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-14 07:37:07,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:07,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 07:37:07,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:07,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:07,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:07,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:08,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:08,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 07:37:08,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:08,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 456 [2020-10-14 07:37:08,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:08,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:08,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 07:37:08,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:08,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-14 07:37:08,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:08,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:08,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:08,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:08,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 07:37:08,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:08,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-10-14 07:37:08,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:08,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:08,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 07:37:08,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:08,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 07:37:08,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:08,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:08,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:09,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:09,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:37:09,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:09,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-14 07:37:09,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:09,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:09,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:37:09,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:09,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 07:37:09,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:09,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:09,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:09,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:09,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:37:09,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:09,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-14 07:37:09,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:09,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:09,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:37:09,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:09,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 07:37:09,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:09,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:09,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:09,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:09,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:37:09,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:09,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-14 07:37:09,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:09,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:09,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:37:09,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:09,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 07:37:09,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:09,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:09,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:09,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:09,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:09,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:37:09,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:09,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-14 07:37:09,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:09,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:09,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:37:09,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:09,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 07:37:09,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:10,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:10,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:10,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:10,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:10,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:37:10,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:10,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 07:37:10,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:10,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:10,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:37:10,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:10,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 07:37:10,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:10,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:10,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:10,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:10,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:37:10,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:10,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 07:37:10,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:10,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:10,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:37:10,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:10,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 07:37:10,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:10,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:10,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:10,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:10,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:37:10,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:10,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 07:37:10,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:10,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:10,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:37:10,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:10,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:37:10,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:10,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:10,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:10,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:10,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:37:10,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:10,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 07:37:10,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:10,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:10,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:37:10,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:10,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 07:37:10,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:10,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:10,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:10,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:10,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:37:10,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:10,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:37:10,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:10,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:10,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:37:10,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:10,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 07:37:10,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:10,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:10,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:10,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:10,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:37:10,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:10,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:37:10,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:10,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:10,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:37:10,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:10,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:37:10,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:10,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:10,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:10,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:10,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:37:10,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:10,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:37:10,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:10,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:10,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:37:10,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:10,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:37:10,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:10,991 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2020-10-14 07:37:10,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1126963693] [2020-10-14 07:37:10,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:37:10,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2020-10-14 07:37:10,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977448195] [2020-10-14 07:37:10,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-10-14 07:37:10,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:37:10,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-10-14 07:37:10,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=1407, Unknown=0, NotChecked=0, Total=1482 [2020-10-14 07:37:10,994 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 39 states. [2020-10-14 07:37:11,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:37:11,683 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions. [2020-10-14 07:37:11,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-14 07:37:11,684 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 115 [2020-10-14 07:37:11,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:37:11,685 INFO L225 Difference]: With dead ends: 73 [2020-10-14 07:37:11,685 INFO L226 Difference]: Without dead ends: 69 [2020-10-14 07:37:11,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=75, Invalid=1407, Unknown=0, NotChecked=0, Total=1482 [2020-10-14 07:37:11,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-14 07:37:11,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-14 07:37:11,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-14 07:37:11,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions. [2020-10-14 07:37:11,691 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 115 [2020-10-14 07:37:11,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:37:11,692 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions. [2020-10-14 07:37:11,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-10-14 07:37:11,692 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2020-10-14 07:37:11,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-14 07:37:11,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:37:11,693 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:37:11,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 07:37:11,694 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:37:11,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:37:11,694 INFO L82 PathProgramCache]: Analyzing trace with hash 130115453, now seen corresponding path program 18 times [2020-10-14 07:37:11,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:37:11,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2117781763] [2020-10-14 07:37:11,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:37:11,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:11,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:13,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:13,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-14 07:37:13,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:13,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1590 [2020-10-14 07:37:13,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:13,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:13,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-14 07:37:13,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 07:37:13,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 07:37:13,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:13,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:37:13,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:13,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:13,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:13,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:37:13,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:13,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:37:13,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:13,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:13,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:37:13,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:13,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:37:13,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:13,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:37:13,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:13,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:14,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:14,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-14 07:37:14,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:14,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1397 [2020-10-14 07:37:14,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:14,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:14,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-14 07:37:14,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:14,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-14 07:37:14,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:14,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:14,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:14,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:16,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:16,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 07:37:16,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:16,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1214 [2020-10-14 07:37:16,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:16,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:16,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-14 07:37:16,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:16,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 07:37:16,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:16,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:16,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:17,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:17,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 07:37:17,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:17,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1020 [2020-10-14 07:37:17,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:17,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:17,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-14 07:37:17,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:17,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 07:37:17,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:17,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:17,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:18,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:18,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 07:37:18,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:18,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 858 [2020-10-14 07:37:18,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:18,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:18,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-14 07:37:18,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:18,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 07:37:18,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:18,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:18,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:18,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:18,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 07:37:18,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:18,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 703 [2020-10-14 07:37:18,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:18,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:18,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-14 07:37:18,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:18,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 07:37:18,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:18,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:18,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:19,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:19,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 07:37:19,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:19,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 567 [2020-10-14 07:37:19,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:19,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:19,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-14 07:37:19,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:19,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 07:37:19,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:19,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:19,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:19,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:19,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:19,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 07:37:19,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:19,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 480 [2020-10-14 07:37:19,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:19,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:19,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 07:37:19,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:19,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-14 07:37:19,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:20,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:20,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:20,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:20,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:20,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 07:37:20,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:20,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-10-14 07:37:20,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:20,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:20,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 07:37:20,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:20,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 07:37:20,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:20,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:20,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:20,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:20,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:20,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:37:20,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:20,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-10-14 07:37:20,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:20,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:20,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:37:20,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:20,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 07:37:20,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:20,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:20,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:20,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:21,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:21,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:37:21,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:21,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-14 07:37:21,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:21,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:21,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:37:21,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:21,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 07:37:21,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:21,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:21,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:21,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:21,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:37:21,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:21,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-14 07:37:21,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:21,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:21,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:37:21,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:21,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 07:37:21,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:21,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:21,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:21,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:21,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:21,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:37:21,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:21,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-14 07:37:21,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:21,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:21,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:37:21,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:21,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 07:37:21,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:21,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:21,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:21,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:21,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:37:21,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:21,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 07:37:21,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:21,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:21,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:37:21,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:21,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 07:37:21,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:21,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:21,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:21,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:21,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:21,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:37:21,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:21,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 07:37:21,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:21,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:21,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:37:21,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:21,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 07:37:21,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:21,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:21,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:22,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:22,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:37:22,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:22,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 07:37:22,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:22,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:22,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:37:22,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:22,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:37:22,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:22,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:22,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:22,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:22,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:22,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:37:22,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:22,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 07:37:22,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:22,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:22,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:37:22,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:22,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 07:37:22,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:22,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:22,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:22,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:22,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:37:22,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:22,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:37:22,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:22,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:22,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:37:22,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:22,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 07:37:22,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:22,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:22,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:22,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:22,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:37:22,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:22,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:37:22,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:22,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:22,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:37:22,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:22,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:37:22,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:22,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:22,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:22,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:22,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:22,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:37:22,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:22,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:37:22,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:22,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:22,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:37:22,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:22,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:37:22,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:22,620 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2020-10-14 07:37:22,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2117781763] [2020-10-14 07:37:22,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:37:22,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2020-10-14 07:37:22,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095380501] [2020-10-14 07:37:22,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-10-14 07:37:22,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:37:22,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-10-14 07:37:22,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1561, Unknown=0, NotChecked=0, Total=1640 [2020-10-14 07:37:22,622 INFO L87 Difference]: Start difference. First operand 69 states and 70 transitions. Second operand 41 states. [2020-10-14 07:37:23,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:37:23,473 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-10-14 07:37:23,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-14 07:37:23,474 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 121 [2020-10-14 07:37:23,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:37:23,476 INFO L225 Difference]: With dead ends: 76 [2020-10-14 07:37:23,478 INFO L226 Difference]: Without dead ends: 72 [2020-10-14 07:37:23,479 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=79, Invalid=1561, Unknown=0, NotChecked=0, Total=1640 [2020-10-14 07:37:23,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-14 07:37:23,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-14 07:37:23,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-14 07:37:23,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 73 transitions. [2020-10-14 07:37:23,496 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 73 transitions. Word has length 121 [2020-10-14 07:37:23,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:37:23,496 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 73 transitions. [2020-10-14 07:37:23,497 INFO L480 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-10-14 07:37:23,497 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 73 transitions. [2020-10-14 07:37:23,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-14 07:37:23,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:37:23,501 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:37:23,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 07:37:23,502 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:37:23,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:37:23,502 INFO L82 PathProgramCache]: Analyzing trace with hash -2010955025, now seen corresponding path program 19 times [2020-10-14 07:37:23,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:37:23,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [51117657] [2020-10-14 07:37:23,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:37:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:23,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:25,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:25,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-14 07:37:25,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:25,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2017 [2020-10-14 07:37:25,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:25,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:25,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-14 07:37:25,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 07:37:25,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-14 07:37:25,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:25,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:37:25,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:25,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:25,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:25,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:37:25,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:25,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:37:25,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:25,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:25,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:37:25,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:25,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:37:25,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:25,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:37:25,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:25,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:27,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:27,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-14 07:37:27,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:27,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1695 [2020-10-14 07:37:27,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:27,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:27,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-14 07:37:27,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:27,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-14 07:37:27,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:27,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:27,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:27,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:28,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:28,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-14 07:37:28,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:28,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1435 [2020-10-14 07:37:28,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:28,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:28,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-14 07:37:28,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:28,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-14 07:37:28,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:28,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:28,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:28,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:30,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:30,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 07:37:30,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:30,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1198 [2020-10-14 07:37:30,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:30,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:30,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-14 07:37:30,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:30,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 07:37:30,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:30,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:30,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:31,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:31,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 07:37:31,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:31,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1019 [2020-10-14 07:37:31,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:31,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:31,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-14 07:37:31,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:31,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 07:37:31,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:31,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:31,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:32,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:32,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 07:37:32,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:32,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 851 [2020-10-14 07:37:32,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:32,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:32,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-14 07:37:32,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:32,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 07:37:32,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:32,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:32,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:32,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:32,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:32,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 07:37:32,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:32,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 817 [2020-10-14 07:37:32,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:32,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:32,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-14 07:37:32,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:32,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 07:37:32,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:32,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:32,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:33,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:33,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 07:37:33,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:33,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 594 [2020-10-14 07:37:33,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:33,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:33,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-14 07:37:33,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:33,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 07:37:33,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:33,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:33,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:33,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:34,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:34,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 07:37:34,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:34,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 463 [2020-10-14 07:37:34,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:34,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:34,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 07:37:34,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:34,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-14 07:37:34,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:34,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:34,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:34,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:34,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:34,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 07:37:34,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:34,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 372 [2020-10-14 07:37:34,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:34,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:34,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 07:37:34,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:34,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 07:37:34,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:34,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:34,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:34,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:34,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:37:34,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:34,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-10-14 07:37:34,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:34,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:34,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:37:34,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:34,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 07:37:34,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:35,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:35,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:35,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:35,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:35,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:37:35,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:35,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-10-14 07:37:35,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:35,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:35,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:37:35,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:35,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 07:37:35,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:35,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:35,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:35,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:35,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:37:35,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:35,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-14 07:37:35,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:35,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:35,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:37:35,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:35,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 07:37:35,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:35,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:35,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:35,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:35,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:35,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:37:35,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:35,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-14 07:37:35,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:35,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:35,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:37:35,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:35,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 07:37:35,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:35,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:35,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:35,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:35,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:37:35,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:35,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 07:37:35,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:35,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:35,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:37:35,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:35,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 07:37:35,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:35,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:35,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:36,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:36,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:37:36,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:36,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 07:37:36,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:36,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:36,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:37:36,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:36,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 07:37:36,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:36,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:36,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:36,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:36,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:37:36,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:36,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 07:37:36,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:36,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:36,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:37:36,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:36,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:37:36,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:36,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:36,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:36,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:36,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:36,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:37:36,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:36,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 07:37:36,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:36,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:36,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:37:36,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:36,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 07:37:36,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:36,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:36,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:36,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:36,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:37:36,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:36,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:37:36,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:36,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:36,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:37:36,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:36,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 07:37:36,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:36,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:36,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:36,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:36,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:37:36,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:36,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:37:36,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:36,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:36,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:37:36,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:36,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:37:36,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:36,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:36,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:36,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:36,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:37:36,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:36,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:37:36,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:36,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:36,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:37:36,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:36,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:37:36,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:36,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2020-10-14 07:37:36,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [51117657] [2020-10-14 07:37:36,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:37:36,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2020-10-14 07:37:36,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429426159] [2020-10-14 07:37:36,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2020-10-14 07:37:36,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:37:36,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2020-10-14 07:37:36,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=1723, Unknown=0, NotChecked=0, Total=1806 [2020-10-14 07:37:36,813 INFO L87 Difference]: Start difference. First operand 72 states and 73 transitions. Second operand 43 states. [2020-10-14 07:37:37,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:37:37,630 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-10-14 07:37:37,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-14 07:37:37,631 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 127 [2020-10-14 07:37:37,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:37:37,632 INFO L225 Difference]: With dead ends: 79 [2020-10-14 07:37:37,633 INFO L226 Difference]: Without dead ends: 75 [2020-10-14 07:37:37,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=83, Invalid=1723, Unknown=0, NotChecked=0, Total=1806 [2020-10-14 07:37:37,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-14 07:37:37,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-10-14 07:37:37,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-14 07:37:37,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 76 transitions. [2020-10-14 07:37:37,638 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 76 transitions. Word has length 127 [2020-10-14 07:37:37,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:37:37,639 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 76 transitions. [2020-10-14 07:37:37,639 INFO L480 AbstractCegarLoop]: Interpolant automaton has 43 states. [2020-10-14 07:37:37,639 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 76 transitions. [2020-10-14 07:37:37,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-14 07:37:37,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:37:37,641 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:37:37,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 07:37:37,641 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:37:37,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:37:37,641 INFO L82 PathProgramCache]: Analyzing trace with hash -799288067, now seen corresponding path program 20 times [2020-10-14 07:37:37,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:37:37,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1312328125] [2020-10-14 07:37:37,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:37:37,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 07:37:37,671 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 07:37:37,671 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 07:37:37,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 07:37:37,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:37:37 BoogieIcfgContainer [2020-10-14 07:37:37,696 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 07:37:37,698 INFO L168 Benchmark]: Toolchain (without parser) took 88718.67 ms. Allocated memory was 146.3 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 102.7 MB in the beginning and 247.2 MB in the end (delta: -144.5 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2020-10-14 07:37:37,699 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-10-14 07:37:37,700 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.83 ms. Allocated memory is still 146.3 MB. Free memory was 102.2 MB in the beginning and 93.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2020-10-14 07:37:37,700 INFO L168 Benchmark]: Boogie Preprocessor took 27.56 ms. Allocated memory is still 146.3 MB. Free memory was 93.1 MB in the beginning and 91.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-14 07:37:37,701 INFO L168 Benchmark]: RCFGBuilder took 306.20 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 91.8 MB in the beginning and 171.5 MB in the end (delta: -79.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-10-14 07:37:37,701 INFO L168 Benchmark]: TraceAbstraction took 88144.87 ms. Allocated memory was 202.9 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 170.9 MB in the beginning and 247.2 MB in the end (delta: -76.3 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2020-10-14 07:37:37,704 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 234.83 ms. Allocated memory is still 146.3 MB. Free memory was 102.2 MB in the beginning and 93.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.56 ms. Allocated memory is still 146.3 MB. Free memory was 93.1 MB in the beginning and 91.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 306.20 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 91.8 MB in the beginning and 171.5 MB in the end (delta: -79.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 88144.87 ms. Allocated memory was 202.9 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 170.9 MB in the beginning and 247.2 MB in the end (delta: -76.3 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] unsigned int input = __VERIFIER_nondet_uint(); [L11] CALL, EXPR id(input) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND TRUE x==0 [L5] return 0; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L11] RET, EXPR id(input) [L11] unsigned int result = id(input); [L12] COND TRUE result == 20 [L13] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 88.0s, OverallIterations: 21, TraceHistogramMax: 21, AutomataDifference: 6.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 684 SDtfs, 2 SDslu, 14532 SDs, 0 SdLazy, 8656 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 940 GetRequests, 500 SyntacticMatches, 0 SemanticMatches, 440 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 20 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 80.3s InterpolantComputationTime, 1533 NumberOfCodeBlocks, 1533 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1380 ConstructedInterpolants, 0 QuantifiedInterpolants, 458592 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 1 PerfectInterpolantSequences, 3800/7600 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...