/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/verifythis/tree_max.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 10:24:29,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 10:24:29,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 10:24:29,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 10:24:29,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 10:24:29,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 10:24:29,747 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 10:24:29,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 10:24:29,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 10:24:29,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 10:24:29,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 10:24:29,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 10:24:29,759 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 10:24:29,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 10:24:29,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 10:24:29,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 10:24:29,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 10:24:29,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 10:24:29,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 10:24:29,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 10:24:29,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 10:24:29,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 10:24:29,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 10:24:29,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 10:24:29,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 10:24:29,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 10:24:29,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 10:24:29,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 10:24:29,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 10:24:29,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 10:24:29,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 10:24:29,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 10:24:29,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 10:24:29,806 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 10:24:29,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 10:24:29,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 10:24:29,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 10:24:29,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 10:24:29,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 10:24:29,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 10:24:29,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 10:24:29,814 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 10:24:29,852 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 10:24:29,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 10:24:29,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 10:24:29,854 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 10:24:29,854 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 10:24:29,855 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 10:24:29,855 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 10:24:29,855 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 10:24:29,855 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 10:24:29,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 10:24:29,856 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 10:24:29,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 10:24:29,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 10:24:29,857 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 10:24:29,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 10:24:29,858 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 10:24:29,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 10:24:29,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 10:24:29,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 10:24:29,858 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 10:24:29,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 10:24:29,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 10:24:29,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 10:24:29,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 10:24:29,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 10:24:29,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 10:24:29,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 10:24:29,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 10:24:29,860 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 10:24:29,860 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 10:24:30,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 10:24:30,194 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 10:24:30,199 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 10:24:30,201 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 10:24:30,201 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 10:24:30,202 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/verifythis/tree_max.c [2020-10-14 10:24:30,250 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dce48def9/f7fe4af8502643c5a28fc73d948555b6/FLAG2702917e0 [2020-10-14 10:24:30,783 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 10:24:30,783 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/verifythis/tree_max.c [2020-10-14 10:24:30,791 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dce48def9/f7fe4af8502643c5a28fc73d948555b6/FLAG2702917e0 [2020-10-14 10:24:31,165 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dce48def9/f7fe4af8502643c5a28fc73d948555b6 [2020-10-14 10:24:31,173 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 10:24:31,175 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 10:24:31,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 10:24:31,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 10:24:31,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 10:24:31,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:24:31" (1/1) ... [2020-10-14 10:24:31,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@172792f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:24:31, skipping insertion in model container [2020-10-14 10:24:31,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:24:31" (1/1) ... [2020-10-14 10:24:31,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 10:24:31,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 10:24:31,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 10:24:31,405 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 10:24:31,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 10:24:31,542 INFO L208 MainTranslator]: Completed translation [2020-10-14 10:24:31,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:24:31 WrapperNode [2020-10-14 10:24:31,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 10:24:31,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 10:24:31,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 10:24:31,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 10:24:31,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:24:31" (1/1) ... [2020-10-14 10:24:31,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:24:31" (1/1) ... [2020-10-14 10:24:31,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:24:31" (1/1) ... [2020-10-14 10:24:31,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:24:31" (1/1) ... [2020-10-14 10:24:31,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:24:31" (1/1) ... [2020-10-14 10:24:31,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:24:31" (1/1) ... [2020-10-14 10:24:31,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:24:31" (1/1) ... [2020-10-14 10:24:31,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 10:24:31,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 10:24:31,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 10:24:31,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 10:24:31,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:24:31" (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 10:24:31,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 10:24:31,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 10:24:31,658 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 10:24:31,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 10:24:31,658 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_tree [2020-10-14 10:24:31,660 INFO L138 BoogieDeclarations]: Found implementation of procedure max [2020-10-14 10:24:31,660 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-14 10:24:31,661 INFO L138 BoogieDeclarations]: Found implementation of procedure task [2020-10-14 10:24:31,661 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 10:24:31,661 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 10:24:31,661 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 10:24:31,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 10:24:31,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 10:24:31,662 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 10:24:31,662 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 10:24:31,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 10:24:31,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 10:24:31,663 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_tree [2020-10-14 10:24:31,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 10:24:31,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 10:24:31,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 10:24:31,664 INFO L130 BoogieDeclarations]: Found specification of procedure max [2020-10-14 10:24:31,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 10:24:31,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 10:24:31,665 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 10:24:31,666 INFO L130 BoogieDeclarations]: Found specification of procedure task [2020-10-14 10:24:31,666 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 10:24:31,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 10:24:31,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 10:24:31,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 10:24:32,039 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 10:24:32,039 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 10:24:32,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:24:32 BoogieIcfgContainer [2020-10-14 10:24:32,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 10:24:32,046 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 10:24:32,046 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 10:24:32,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 10:24:32,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:24:31" (1/3) ... [2020-10-14 10:24:32,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f1394bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:24:32, skipping insertion in model container [2020-10-14 10:24:32,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:24:31" (2/3) ... [2020-10-14 10:24:32,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f1394bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:24:32, skipping insertion in model container [2020-10-14 10:24:32,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:24:32" (3/3) ... [2020-10-14 10:24:32,053 INFO L109 eAbstractionObserver]: Analyzing ICFG tree_max.c [2020-10-14 10:24:32,063 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 10:24:32,071 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 10:24:32,085 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 10:24:32,108 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 10:24:32,108 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 10:24:32,108 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 10:24:32,108 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 10:24:32,108 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 10:24:32,108 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 10:24:32,109 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 10:24:32,109 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 10:24:32,128 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2020-10-14 10:24:32,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-14 10:24:32,136 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:24:32,137 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:24:32,138 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:24:32,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:24:32,145 INFO L82 PathProgramCache]: Analyzing trace with hash -788474151, now seen corresponding path program 1 times [2020-10-14 10:24:32,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:24:32,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1773311718] [2020-10-14 10:24:32,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:24:32,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:32,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:32,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:33,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:33,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 10:24:33,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 10:24:33,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 856 [2020-10-14 10:24:33,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:33,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:33,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 10:24:33,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 10:24:33,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 10:24:33,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 10:24:33,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:24:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:33,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:33,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:33,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:24:33,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:33,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 10:24:33,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:33,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:33,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:33,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:33,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:33,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 10:24:33,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:24:33,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:33,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:33,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:33,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:24:33,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:33,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 10:24:33,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:33,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:33,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 10:24:33,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:33,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 10:24:33,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:33,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 10:24:33,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:33,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:33,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:33,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:33,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:24:33,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 10:24:33,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 10:24:33,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:33,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:33,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:24:33,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:33,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:24:33,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:33,490 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 10:24:33,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1773311718] [2020-10-14 10:24:33,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:24:33,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 10:24:33,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148591110] [2020-10-14 10:24:33,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 10:24:33,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:24:33,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 10:24:33,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-14 10:24:33,524 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 10 states. [2020-10-14 10:24:34,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:24:34,245 INFO L93 Difference]: Finished difference Result 94 states and 121 transitions. [2020-10-14 10:24:34,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 10:24:34,248 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2020-10-14 10:24:34,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:24:34,261 INFO L225 Difference]: With dead ends: 94 [2020-10-14 10:24:34,262 INFO L226 Difference]: Without dead ends: 43 [2020-10-14 10:24:34,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-10-14 10:24:34,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-14 10:24:34,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-14 10:24:34,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-14 10:24:34,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2020-10-14 10:24:34,319 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 24 [2020-10-14 10:24:34,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:24:34,320 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2020-10-14 10:24:34,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 10:24:34,320 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2020-10-14 10:24:34,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-14 10:24:34,323 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:24:34,323 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:24:34,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 10:24:34,324 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:24:34,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:24:34,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1319299530, now seen corresponding path program 1 times [2020-10-14 10:24:34,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:24:34,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1237742011] [2020-10-14 10:24:34,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:24:34,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:34,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:34,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:34,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:34,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-14 10:24:34,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 10:24:34,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 633 [2020-10-14 10:24:34,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:34,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:34,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 10:24:34,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 10:24:34,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 10:24:34,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:35,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:24:35,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:35,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:35,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:35,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:24:35,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:35,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:24:35,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:35,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:35,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:35,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:35,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:35,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:35,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:24:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:35,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:35,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:35,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:24:35,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:35,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 10:24:35,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:35,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:35,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 10:24:35,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:35,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 10:24:35,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:35,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:24:35,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:35,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:35,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:35,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:24:35,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:35,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 10:24:35,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:35,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:35,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:24:35,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:35,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 10:24:35,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:35,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:24:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:35,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:35,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:35,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:24:35,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:35,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 10:24:35,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:35,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:35,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:24:35,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:35,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 10:24:35,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:35,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 10:24:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:35,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:35,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:35,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:24:35,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:35,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 10:24:35,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:35,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:35,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 10:24:35,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 10:24:35,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:24:35,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:35,328 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 10:24:35,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1237742011] [2020-10-14 10:24:35,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:24:35,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 10:24:35,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493663509] [2020-10-14 10:24:35,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 10:24:35,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:24:35,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 10:24:35,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-10-14 10:24:35,333 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand 11 states. [2020-10-14 10:24:35,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:24:35,975 INFO L93 Difference]: Finished difference Result 60 states and 73 transitions. [2020-10-14 10:24:35,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 10:24:35,976 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 34 [2020-10-14 10:24:35,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:24:35,979 INFO L225 Difference]: With dead ends: 60 [2020-10-14 10:24:35,979 INFO L226 Difference]: Without dead ends: 45 [2020-10-14 10:24:35,981 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2020-10-14 10:24:35,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-14 10:24:35,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-10-14 10:24:35,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-14 10:24:35,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2020-10-14 10:24:35,993 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 34 [2020-10-14 10:24:35,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:24:35,994 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2020-10-14 10:24:35,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 10:24:35,995 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2020-10-14 10:24:35,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-14 10:24:35,997 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:24:35,997 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:24:35,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 10:24:35,998 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:24:35,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:24:35,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1373602357, now seen corresponding path program 1 times [2020-10-14 10:24:35,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:24:35,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1096772366] [2020-10-14 10:24:36,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:24:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:36,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:36,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:36,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:36,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 10:24:36,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 10:24:36,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 717 [2020-10-14 10:24:36,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:36,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:36,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 10:24:36,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-14 10:24:36,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 10:24:36,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:36,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:24:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:36,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:36,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:36,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:24:36,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:36,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:24:36,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:36,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:36,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:36,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:36,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:36,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:36,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:24:36,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:36,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:36,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:36,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:24:36,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:36,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 10:24:36,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:36,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:36,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:36,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:36,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:36,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:24:36,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:24:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:36,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:36,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:36,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:24:36,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:36,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:24:36,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:36,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:36,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:36,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:36,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:36,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:36,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:24:36,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:36,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:36,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:36,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:24:36,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:36,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:24:36,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:36,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:36,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:36,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:36,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:36,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:36,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 10:24:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:36,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:36,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:36,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 10:24:36,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:36,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 10:24:36,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:36,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:36,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 10:24:36,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:36,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 10:24:36,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:37,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:24:37,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:37,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:37,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:37,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:24:37,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:37,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:24:37,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:37,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:37,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:24:37,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:37,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:24:37,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:24:37,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:24:37,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:37,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:37,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:37,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:24:37,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:37,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:24:37,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:37,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:37,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:24:37,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:37,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:24:37,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:37,072 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-14 10:24:37,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1096772366] [2020-10-14 10:24:37,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:24:37,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 10:24:37,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554512142] [2020-10-14 10:24:37,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 10:24:37,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:24:37,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 10:24:37,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-10-14 10:24:37,074 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand 14 states. [2020-10-14 10:24:37,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:24:37,939 INFO L93 Difference]: Finished difference Result 58 states and 70 transitions. [2020-10-14 10:24:37,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 10:24:37,941 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 47 [2020-10-14 10:24:37,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:24:37,944 INFO L225 Difference]: With dead ends: 58 [2020-10-14 10:24:37,945 INFO L226 Difference]: Without dead ends: 56 [2020-10-14 10:24:37,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=110, Invalid=540, Unknown=0, NotChecked=0, Total=650 [2020-10-14 10:24:37,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-14 10:24:37,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52. [2020-10-14 10:24:37,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-14 10:24:37,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 63 transitions. [2020-10-14 10:24:37,978 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 63 transitions. Word has length 47 [2020-10-14 10:24:37,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:24:37,982 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 63 transitions. [2020-10-14 10:24:37,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 10:24:37,983 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 63 transitions. [2020-10-14 10:24:37,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-14 10:24:37,988 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:24:37,988 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:24:37,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 10:24:37,989 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:24:37,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:24:37,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1560869568, now seen corresponding path program 1 times [2020-10-14 10:24:37,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:24:37,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [613287803] [2020-10-14 10:24:37,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:24:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:38,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:38,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:40,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:40,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 10:24:40,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 10:24:40,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2840 [2020-10-14 10:24:40,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:40,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:40,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 10:24:40,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 10:24:40,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 10:24:40,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:41,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:24:41,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:41,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:41,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:41,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:24:41,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:41,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:24:41,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:41,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:41,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:41,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:41,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:41,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:41,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:24:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:41,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:41,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:41,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:24:41,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:41,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 10:24:41,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:41,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:41,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 10:24:41,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:41,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 10:24:41,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:41,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:24:41,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:41,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:41,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:41,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:24:41,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:41,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:24:41,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:41,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:41,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:41,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:41,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:41,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:41,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:24:41,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:41,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:41,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:41,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:24:41,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:41,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 10:24:41,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:41,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:41,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 10:24:41,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:41,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 10:24:41,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 10:24:41,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 10:24:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:41,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:41,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:41,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:41,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 10:24:41,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 10:24:41,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 10:24:41,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:41,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:41,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:24:41,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:41,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 10:24:41,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:24:41,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:24:41,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:41,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:41,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:41,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:24:41,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:41,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:24:41,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:41,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:41,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:41,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:41,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:41,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:41,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:24:41,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:41,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:41,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:41,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:24:41,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:41,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:24:41,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:41,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:41,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:41,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:41,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:41,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:41,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 10:24:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:41,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:41,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:41,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:24:41,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:41,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:24:41,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:41,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:41,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:24:41,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:41,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:24:41,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:41,570 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-14 10:24:41,572 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [613287803] [2020-10-14 10:24:41,572 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:24:41,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 10:24:41,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993770680] [2020-10-14 10:24:41,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 10:24:41,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:24:41,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 10:24:41,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-10-14 10:24:41,576 INFO L87 Difference]: Start difference. First operand 52 states and 63 transitions. Second operand 15 states. [2020-10-14 10:24:42,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:24:42,434 INFO L93 Difference]: Finished difference Result 82 states and 99 transitions. [2020-10-14 10:24:42,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 10:24:42,435 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 57 [2020-10-14 10:24:42,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:24:42,437 INFO L225 Difference]: With dead ends: 82 [2020-10-14 10:24:42,438 INFO L226 Difference]: Without dead ends: 66 [2020-10-14 10:24:42,439 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=89, Invalid=463, Unknown=0, NotChecked=0, Total=552 [2020-10-14 10:24:42,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-14 10:24:42,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 65. [2020-10-14 10:24:42,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-14 10:24:42,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 80 transitions. [2020-10-14 10:24:42,455 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 80 transitions. Word has length 57 [2020-10-14 10:24:42,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:24:42,455 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 80 transitions. [2020-10-14 10:24:42,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 10:24:42,456 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 80 transitions. [2020-10-14 10:24:42,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 10:24:42,458 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:24:42,458 INFO L422 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:24:42,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 10:24:42,459 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:24:42,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:24:42,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1796722781, now seen corresponding path program 2 times [2020-10-14 10:24:42,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:24:42,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [652954347] [2020-10-14 10:24:42,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:24:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:42,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:42,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:44,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:44,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 10:24:44,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 10:24:44,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2019 [2020-10-14 10:24:44,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:44,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:44,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 10:24:44,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-14 10:24:44,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 10:24:44,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:44,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:24:44,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:44,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:44,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:44,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:24:44,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:44,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:24:44,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:44,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:44,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:44,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:44,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:44,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:44,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:24:44,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:44,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:44,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:44,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 10:24:44,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:44,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 10:24:44,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:44,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:44,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:44,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:44,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:44,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:44,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:24:44,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:44,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:44,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:44,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:24:44,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:44,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:24:44,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:44,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:44,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:44,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:44,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:44,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:44,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:24:44,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:44,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:44,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:44,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:24:44,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:44,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 10:24:44,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:44,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:44,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:44,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:44,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:44,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:44,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:24:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:44,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:44,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:44,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:24:44,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:44,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:24:44,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:44,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:44,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:44,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:44,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:44,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:44,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:24:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:44,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:44,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:44,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:24:44,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:44,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:24:44,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:44,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:44,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:44,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:44,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:44,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 10:24:44,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 10:24:44,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:44,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:44,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:44,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 10:24:44,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:44,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 10:24:44,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:44,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:44,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 10:24:44,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:44,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 10:24:44,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:44,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:24:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:44,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:44,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:44,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:24:44,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:44,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 10:24:44,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:44,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:44,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:24:44,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:44,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:24:44,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:44,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:24:44,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:44,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:44,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:44,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:24:44,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:44,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 10:24:44,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:44,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:44,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 10:24:44,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:44,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 10:24:44,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:45,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 10:24:45,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:45,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:45,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:45,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:24:45,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:45,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 10:24:45,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:45,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:45,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:24:45,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:45,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:24:45,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:45,058 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-14 10:24:45,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [652954347] [2020-10-14 10:24:45,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:24:45,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 10:24:45,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803387095] [2020-10-14 10:24:45,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 10:24:45,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:24:45,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 10:24:45,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-10-14 10:24:45,061 INFO L87 Difference]: Start difference. First operand 65 states and 80 transitions. Second operand 14 states. [2020-10-14 10:24:46,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:24:46,198 INFO L93 Difference]: Finished difference Result 101 states and 125 transitions. [2020-10-14 10:24:46,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 10:24:46,198 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 67 [2020-10-14 10:24:46,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:24:46,205 INFO L225 Difference]: With dead ends: 101 [2020-10-14 10:24:46,205 INFO L226 Difference]: Without dead ends: 85 [2020-10-14 10:24:46,209 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=114, Invalid=536, Unknown=0, NotChecked=0, Total=650 [2020-10-14 10:24:46,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-14 10:24:46,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 70. [2020-10-14 10:24:46,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-14 10:24:46,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 90 transitions. [2020-10-14 10:24:46,232 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 90 transitions. Word has length 67 [2020-10-14 10:24:46,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:24:46,233 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 90 transitions. [2020-10-14 10:24:46,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 10:24:46,233 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 90 transitions. [2020-10-14 10:24:46,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 10:24:46,239 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:24:46,239 INFO L422 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:24:46,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 10:24:46,240 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:24:46,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:24:46,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1640408671, now seen corresponding path program 1 times [2020-10-14 10:24:46,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:24:46,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067136259] [2020-10-14 10:24:46,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:24:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:46,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:46,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:46,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:47,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:51,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:51,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 10:24:51,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 10:24:51,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 10:24:51,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:51,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:51,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 10:24:51,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-14 10:24:51,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 10:24:51,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:24:51,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:24:51,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:51,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:51,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:51,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:24:51,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:51,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:24:51,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:51,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:51,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:51,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:51,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:51,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:24:51,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:24:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:51,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:51,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:51,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 10:24:51,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:51,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 10:24:51,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:51,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:51,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:51,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:51,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:51,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:24:51,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:24:51,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:51,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:51,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:51,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:24:51,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:51,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:24:51,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:51,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:51,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:51,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:51,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:51,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:51,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:24:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:51,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:51,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:51,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:24:51,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:51,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 10:24:51,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:51,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:51,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:51,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:51,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:51,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:51,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:24:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:51,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:51,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:51,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:24:51,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:51,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:24:51,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:51,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:51,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:51,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:51,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:51,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:51,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:24:51,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:51,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:51,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:51,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:24:51,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:51,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:24:51,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:51,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:51,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:51,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:51,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:51,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:51,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 10:24:51,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:51,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:51,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:51,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 10:24:51,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:51,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 10:24:51,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:51,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:51,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 10:24:51,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:51,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 10:24:51,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:51,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:24:51,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:51,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:51,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:51,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:24:51,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:51,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 10:24:51,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:51,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:51,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 10:24:51,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:51,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 10:24:51,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:51,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:24:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:51,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:51,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:51,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:24:51,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:51,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 10:24:51,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:51,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:51,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:24:51,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:51,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:24:51,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:51,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 10:24:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:51,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:51,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:51,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:24:51,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:51,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 10:24:51,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:51,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:51,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:24:51,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:51,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:24:51,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:51,688 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-14 10:24:51,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067136259] [2020-10-14 10:24:51,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:24:51,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 10:24:51,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128450416] [2020-10-14 10:24:51,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 10:24:51,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:24:51,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 10:24:51,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-10-14 10:24:51,694 INFO L87 Difference]: Start difference. First operand 70 states and 90 transitions. Second operand 14 states. [2020-10-14 10:24:52,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:24:52,627 INFO L93 Difference]: Finished difference Result 113 states and 152 transitions. [2020-10-14 10:24:52,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 10:24:52,628 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 67 [2020-10-14 10:24:52,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:24:52,630 INFO L225 Difference]: With dead ends: 113 [2020-10-14 10:24:52,630 INFO L226 Difference]: Without dead ends: 90 [2020-10-14 10:24:52,633 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=114, Invalid=536, Unknown=0, NotChecked=0, Total=650 [2020-10-14 10:24:52,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-10-14 10:24:52,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 89. [2020-10-14 10:24:52,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-10-14 10:24:52,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 122 transitions. [2020-10-14 10:24:52,674 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 122 transitions. Word has length 67 [2020-10-14 10:24:52,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:24:52,677 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 122 transitions. [2020-10-14 10:24:52,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 10:24:52,677 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 122 transitions. [2020-10-14 10:24:52,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-14 10:24:52,679 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:24:52,680 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:24:52,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 10:24:52,681 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:24:52,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:24:52,682 INFO L82 PathProgramCache]: Analyzing trace with hash -714188094, now seen corresponding path program 3 times [2020-10-14 10:24:52,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:24:52,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1573721734] [2020-10-14 10:24:52,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:24:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:52,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:52,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:53,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:57,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:57,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 10:24:57,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 10:24:57,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 10:24:57,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:57,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:57,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 10:24:57,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-14 10:24:57,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 10:24:57,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:24:57,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:24:57,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:57,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:57,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:57,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:24:57,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:57,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:24:57,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:57,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:57,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:57,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:57,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:57,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:24:57,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:24:57,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:57,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:57,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:57,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 10:24:57,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:57,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 10:24:57,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:57,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:57,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:57,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:57,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:57,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:24:57,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:24:57,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:57,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:57,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:57,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:24:57,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:57,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:24:57,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:57,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:57,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:57,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:57,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:57,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:57,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:24:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:57,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:57,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:57,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:24:57,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:57,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 10:24:57,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:57,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:57,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:57,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:57,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:57,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:57,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:24:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:57,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:57,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:57,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:24:57,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:57,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:24:57,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:57,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:57,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:57,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:57,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:57,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:24:57,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:24:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:57,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:57,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:57,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:24:57,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:57,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:24:57,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:57,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:57,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:24:57,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:57,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:24:57,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:58,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 10:24:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:58,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:58,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:58,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:58,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-14 10:24:58,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 10:24:58,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-14 10:24:58,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:58,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:58,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 10:24:58,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:58,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 10:24:58,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:58,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:24:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:58,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:58,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:58,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:24:58,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:58,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:24:58,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:58,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:58,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:24:58,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:58,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:24:58,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:58,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:24:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:58,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:58,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:58,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 10:24:58,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:58,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 10:24:58,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:58,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:58,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 10:24:58,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:58,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 10:24:58,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:58,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:24:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:58,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:58,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:58,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:24:58,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:58,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 10:24:58,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:58,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:58,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 10:24:58,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:58,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:24:58,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:58,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:24:58,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:58,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:58,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:58,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:24:58,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:58,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:24:58,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:58,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:58,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:24:58,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:58,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:24:58,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:24:58,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 10:24:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:24:58,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:24:58,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:24:58,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:24:58,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:24:58,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:24:58,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:24:58,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:24:58,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:24:58,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:24:58,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:24:58,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:24:58,684 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 13 proven. 21 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-10-14 10:24:58,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1573721734] [2020-10-14 10:24:58,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:24:58,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 10:24:58,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883748267] [2020-10-14 10:24:58,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 10:24:58,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:24:58,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 10:24:58,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=461, Unknown=0, NotChecked=0, Total=506 [2020-10-14 10:24:58,688 INFO L87 Difference]: Start difference. First operand 89 states and 122 transitions. Second operand 23 states. [2020-10-14 10:25:01,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:25:01,314 INFO L93 Difference]: Finished difference Result 145 states and 209 transitions. [2020-10-14 10:25:01,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-14 10:25:01,316 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 80 [2020-10-14 10:25:01,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:25:01,320 INFO L225 Difference]: With dead ends: 145 [2020-10-14 10:25:01,320 INFO L226 Difference]: Without dead ends: 143 [2020-10-14 10:25:01,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=308, Invalid=2142, Unknown=0, NotChecked=0, Total=2450 [2020-10-14 10:25:01,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-10-14 10:25:01,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 127. [2020-10-14 10:25:01,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-14 10:25:01,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 182 transitions. [2020-10-14 10:25:01,361 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 182 transitions. Word has length 80 [2020-10-14 10:25:01,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:25:01,363 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 182 transitions. [2020-10-14 10:25:01,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 10:25:01,363 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 182 transitions. [2020-10-14 10:25:01,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-14 10:25:01,365 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:25:01,365 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:25:01,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 10:25:01,366 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:25:01,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:25:01,366 INFO L82 PathProgramCache]: Analyzing trace with hash -704279008, now seen corresponding path program 1 times [2020-10-14 10:25:01,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:25:01,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [596004645] [2020-10-14 10:25:01,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:25:01,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:01,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:01,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:01,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:04,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:05,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:05,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:06,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:06,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 10:25:06,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 10:25:06,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 10:25:06,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:06,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:06,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 10:25:06,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-14 10:25:06,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 10:25:06,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:06,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:25:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:06,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:06,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:06,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:06,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:06,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:06,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:06,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:06,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:06,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:06,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:06,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:25:06,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:25:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:06,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:06,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:06,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 10:25:06,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:06,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 10:25:06,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:06,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:06,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:06,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:06,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:06,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:06,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:25:06,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:06,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:06,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:06,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:06,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:06,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:06,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:06,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:06,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:06,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:06,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:06,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:06,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:25:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:06,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:06,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:06,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:25:06,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:06,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 10:25:06,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:06,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:06,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:06,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:06,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:06,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:06,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:25:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:06,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:06,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:06,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:06,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:06,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:06,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:06,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:06,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:06,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:06,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:06,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:25:06,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:25:06,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:06,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:06,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:06,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:06,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:06,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:06,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:06,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:06,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:06,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:06,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:06,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:06,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 10:25:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:06,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:06,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:06,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:06,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:06,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:07,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:07,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 10:25:07,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 10:25:07,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 632 [2020-10-14 10:25:07,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:07,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:07,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 10:25:07,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:07,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 10:25:07,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:07,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:25:07,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:07,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:07,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:07,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:07,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:07,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 10:25:07,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:07,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:07,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 10:25:07,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:07,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:25:07,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:25:07,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:25:07,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:07,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:07,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:07,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 10:25:07,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:07,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 10:25:07,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:07,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:07,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 10:25:07,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:07,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 10:25:07,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:07,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:25:07,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:07,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:07,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:07,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:07,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:07,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:25:07,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:07,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:07,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:25:07,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:07,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:25:07,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:25:07,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:25:07,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:07,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:07,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:07,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:07,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:07,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:25:07,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:07,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:07,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:25:07,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:07,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:25:07,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:07,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 10:25:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:07,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:07,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:07,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:07,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:07,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 10:25:07,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:07,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:07,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 10:25:07,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:07,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 10:25:07,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:07,915 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-10-14 10:25:07,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [596004645] [2020-10-14 10:25:07,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:25:07,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-14 10:25:07,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966153344] [2020-10-14 10:25:07,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-14 10:25:07,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:25:07,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-14 10:25:07,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2020-10-14 10:25:07,919 INFO L87 Difference]: Start difference. First operand 127 states and 182 transitions. Second operand 26 states. [2020-10-14 10:25:11,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:25:11,159 INFO L93 Difference]: Finished difference Result 148 states and 209 transitions. [2020-10-14 10:25:11,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-14 10:25:11,161 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 81 [2020-10-14 10:25:11,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:25:11,167 INFO L225 Difference]: With dead ends: 148 [2020-10-14 10:25:11,167 INFO L226 Difference]: Without dead ends: 146 [2020-10-14 10:25:11,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=282, Invalid=2168, Unknown=0, NotChecked=0, Total=2450 [2020-10-14 10:25:11,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-14 10:25:11,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 142. [2020-10-14 10:25:11,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-10-14 10:25:11,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 202 transitions. [2020-10-14 10:25:11,227 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 202 transitions. Word has length 81 [2020-10-14 10:25:11,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:25:11,227 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 202 transitions. [2020-10-14 10:25:11,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-14 10:25:11,228 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 202 transitions. [2020-10-14 10:25:11,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-14 10:25:11,237 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:25:11,237 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:25:11,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 10:25:11,238 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:25:11,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:25:11,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1701536637, now seen corresponding path program 1 times [2020-10-14 10:25:11,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:25:11,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [698879430] [2020-10-14 10:25:11,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:25:11,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:11,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:11,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:11,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:12,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:12,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:12,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:14,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:16,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:16,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 10:25:16,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 10:25:16,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 10:25:16,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:16,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:16,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 10:25:16,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-14 10:25:16,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 10:25:16,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:16,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:25:16,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:16,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:16,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:16,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:16,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:16,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:16,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:16,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:16,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:16,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:16,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:16,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:25:16,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:25:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:16,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:16,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:16,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 10:25:16,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:16,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 10:25:16,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:16,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:16,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:16,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:16,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:16,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:16,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:25:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:16,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:16,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:16,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:16,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:16,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:16,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:16,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:16,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:16,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:16,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:16,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:16,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:25:16,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:16,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:16,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:16,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:25:16,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:16,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 10:25:16,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:16,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:16,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:16,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:16,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:16,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 10:25:16,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:25:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:16,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:16,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:16,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:16,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:16,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:25:16,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:16,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:16,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:16,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:16,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:16,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:25:16,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:25:16,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:16,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:16,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:16,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:16,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:16,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:25:16,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:16,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:16,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:16,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:16,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:16,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:16,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 10:25:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:16,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:16,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:16,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:16,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 10:25:16,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 10:25:16,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-14 10:25:16,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:16,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:16,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 10:25:16,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 10:25:16,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 10:25:16,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:16,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:25:16,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:16,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:16,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:16,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:16,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:16,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:16,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:16,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:16,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:16,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:16,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:16,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:16,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:25:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:16,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:16,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:16,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 10:25:16,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:16,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 10:25:16,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:16,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:16,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 10:25:16,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 10:25:16,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 10:25:16,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:16,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:25:16,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:16,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:16,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:16,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:16,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:16,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:16,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:16,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:16,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:16,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:16,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:16,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:16,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:25:16,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:16,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:16,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:16,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:16,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:16,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:25:16,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:16,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:16,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 10:25:16,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:16,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:25:16,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:16,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 10:25:16,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:16,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:16,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:16,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:16,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:16,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:16,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:16,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:16,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:16,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 10:25:16,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:16,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:16,712 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-10-14 10:25:16,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [698879430] [2020-10-14 10:25:16,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:25:16,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 10:25:16,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108935369] [2020-10-14 10:25:16,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 10:25:16,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:25:16,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 10:25:16,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-14 10:25:16,721 INFO L87 Difference]: Start difference. First operand 142 states and 202 transitions. Second operand 9 states. [2020-10-14 10:25:17,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:25:17,169 INFO L93 Difference]: Finished difference Result 262 states and 407 transitions. [2020-10-14 10:25:17,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 10:25:17,169 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-10-14 10:25:17,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:25:17,172 INFO L225 Difference]: With dead ends: 262 [2020-10-14 10:25:17,172 INFO L226 Difference]: Without dead ends: 144 [2020-10-14 10:25:17,174 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2020-10-14 10:25:17,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-14 10:25:17,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2020-10-14 10:25:17,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-10-14 10:25:17,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 200 transitions. [2020-10-14 10:25:17,194 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 200 transitions. Word has length 81 [2020-10-14 10:25:17,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:25:17,194 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 200 transitions. [2020-10-14 10:25:17,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 10:25:17,194 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 200 transitions. [2020-10-14 10:25:17,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-14 10:25:17,196 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:25:17,196 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:25:17,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 10:25:17,196 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:25:17,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:25:17,197 INFO L82 PathProgramCache]: Analyzing trace with hash -375672706, now seen corresponding path program 2 times [2020-10-14 10:25:17,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:25:17,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [107035173] [2020-10-14 10:25:17,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:25:17,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:17,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:17,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:17,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:17,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:17,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:18,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:22,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:22,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 10:25:22,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 10:25:22,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 10:25:22,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:22,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:22,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 10:25:22,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-14 10:25:22,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 10:25:22,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:22,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:25:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:22,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:22,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:22,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:22,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:22,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:22,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:22,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:22,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:22,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:22,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:22,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:22,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:25:22,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:22,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:22,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:22,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 10:25:22,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:22,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 10:25:22,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:22,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:22,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:22,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:22,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:22,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:22,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:25:22,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:22,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:22,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:22,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:22,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:22,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:25:22,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:22,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:22,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:22,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:22,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:22,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:22,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:25:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:22,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:22,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:22,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:25:22,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:22,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 10:25:22,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:22,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:22,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:22,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:22,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:22,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:25:22,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:25:22,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:22,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:22,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:22,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:22,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:22,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:22,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:22,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:22,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:22,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:22,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:22,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:25:22,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:25:22,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:22,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:22,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:22,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:22,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:22,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:25:22,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:22,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:22,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:22,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:22,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:22,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:25:22,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 10:25:22,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:22,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:22,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:22,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:22,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:22,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 10:25:22,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 10:25:22,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-14 10:25:22,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:22,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:22,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 10:25:22,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 10:25:22,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 10:25:22,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:22,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:25:22,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:22,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:22,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:22,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:22,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:22,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:25:22,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:22,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:22,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 10:25:22,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:22,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 10:25:22,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:25:22,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:25:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:22,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:22,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:22,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:22,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:22,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 10:25:22,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 10:25:22,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 10:25:22,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:22,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:22,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 10:25:22,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:22,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 10:25:22,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:25:22,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:25:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:22,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:22,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:22,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:22,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:22,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:22,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:22,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:22,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:22,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:22,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:22,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:25:22,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:25:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:22,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:22,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:22,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:22,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:22,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:25:22,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:22,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:22,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:25:22,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:22,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:25:22,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:22,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 10:25:22,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:22,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:22,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:22,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:22,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:22,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:25:22,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:22,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:22,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:22,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 10:25:22,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:22,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:22,817 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-14 10:25:22,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [107035173] [2020-10-14 10:25:22,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:25:22,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 10:25:22,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521338457] [2020-10-14 10:25:22,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 10:25:22,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:25:22,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 10:25:22,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2020-10-14 10:25:22,819 INFO L87 Difference]: Start difference. First operand 142 states and 200 transitions. Second operand 12 states. [2020-10-14 10:25:23,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:25:23,817 INFO L93 Difference]: Finished difference Result 299 states and 515 transitions. [2020-10-14 10:25:23,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 10:25:23,817 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 81 [2020-10-14 10:25:23,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:25:23,821 INFO L225 Difference]: With dead ends: 299 [2020-10-14 10:25:23,821 INFO L226 Difference]: Without dead ends: 181 [2020-10-14 10:25:23,822 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=145, Invalid=455, Unknown=0, NotChecked=0, Total=600 [2020-10-14 10:25:23,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-10-14 10:25:23,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 166. [2020-10-14 10:25:23,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-14 10:25:23,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 268 transitions. [2020-10-14 10:25:23,845 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 268 transitions. Word has length 81 [2020-10-14 10:25:23,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:25:23,845 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 268 transitions. [2020-10-14 10:25:23,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 10:25:23,845 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 268 transitions. [2020-10-14 10:25:23,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 10:25:23,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:25:23,848 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:25:23,848 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 10:25:23,848 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:25:23,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:25:23,848 INFO L82 PathProgramCache]: Analyzing trace with hash 988412515, now seen corresponding path program 1 times [2020-10-14 10:25:23,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:25:23,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1622587330] [2020-10-14 10:25:23,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:25:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:23,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:24,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:24,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 10:25:24,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:24,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 395 [2020-10-14 10:25:24,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:24,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:24,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 10:25:24,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-14 10:25:24,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 10:25:24,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:24,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:25:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:24,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:24,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:24,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:24,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:24,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:24,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:24,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:24,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:24,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:24,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:24,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:24,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:25:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:24,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:24,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:24,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 10:25:24,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:24,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 10:25:24,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:24,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:24,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:24,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:24,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:24,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:24,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:25:24,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:24,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:24,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:24,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:24,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:24,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:24,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:24,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:24,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:24,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:24,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:24,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:24,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:25:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:24,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:24,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:24,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:25:24,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:24,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 10:25:24,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:24,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:24,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:24,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:24,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:24,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:24,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:25:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:24,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:24,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:24,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:24,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:24,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:24,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:24,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:24,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:24,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:24,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:24,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:24,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:25:24,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:24,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:24,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:24,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:24,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:24,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:24,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:24,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:24,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:24,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:24,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:24,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:24,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 10:25:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:24,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:24,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:24,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 10:25:24,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:24,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 10:25:24,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:24,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:24,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 10:25:24,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:24,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 10:25:24,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:24,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:25:24,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:24,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:24,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:24,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:24,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:24,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:25:24,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:24,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:24,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:25:24,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:24,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:25:24,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:24,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:25:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:24,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:24,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:24,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 10:25:24,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:24,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 10:25:24,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:24,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:24,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 10:25:24,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:24,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 10:25:24,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:24,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:25:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:24,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:24,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:24,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:24,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:24,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:25:24,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:24,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:24,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:25:24,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:24,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:25:24,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:24,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:25:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:24,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:24,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:24,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:24,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:24,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:24,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:24,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:24,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:25:24,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:24,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:25:24,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:25:24,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 10:25:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:24,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:24,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:24,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:24,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:24,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:25:24,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:24,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:24,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:25:24,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:24,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:25:24,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:24,848 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 15 proven. 16 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-10-14 10:25:24,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1622587330] [2020-10-14 10:25:24,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:25:24,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 10:25:24,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242300779] [2020-10-14 10:25:24,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 10:25:24,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:25:24,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 10:25:24,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-10-14 10:25:24,850 INFO L87 Difference]: Start difference. First operand 166 states and 268 transitions. Second operand 21 states. [2020-10-14 10:25:26,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:25:26,893 INFO L93 Difference]: Finished difference Result 222 states and 360 transitions. [2020-10-14 10:25:26,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 10:25:26,894 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 82 [2020-10-14 10:25:26,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:25:26,898 INFO L225 Difference]: With dead ends: 222 [2020-10-14 10:25:26,899 INFO L226 Difference]: Without dead ends: 220 [2020-10-14 10:25:26,900 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=205, Invalid=1435, Unknown=0, NotChecked=0, Total=1640 [2020-10-14 10:25:26,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-10-14 10:25:26,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 172. [2020-10-14 10:25:26,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-10-14 10:25:26,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 279 transitions. [2020-10-14 10:25:26,920 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 279 transitions. Word has length 82 [2020-10-14 10:25:26,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:25:26,921 INFO L479 AbstractCegarLoop]: Abstraction has 172 states and 279 transitions. [2020-10-14 10:25:26,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 10:25:26,921 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 279 transitions. [2020-10-14 10:25:26,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-14 10:25:26,923 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:25:26,923 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:25:26,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 10:25:26,924 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:25:26,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:25:26,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1188395303, now seen corresponding path program 2 times [2020-10-14 10:25:26,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:25:26,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1560495224] [2020-10-14 10:25:26,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:25:26,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:26,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:26,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:27,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:27,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:28,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:31,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:31,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 10:25:31,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 10:25:31,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 10:25:31,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:31,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:31,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 10:25:31,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 10:25:31,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 10:25:31,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:32,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:25:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:32,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:32,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:32,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:32,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:32,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:32,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:32,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:32,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:32,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:32,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:32,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:32,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:25:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:32,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:32,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:32,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:25:32,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:32,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 10:25:32,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:32,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:32,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 10:25:32,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:32,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 10:25:32,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:32,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:25:32,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:32,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:32,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:32,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:32,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:32,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:25:32,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:32,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:32,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 10:25:32,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:32,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 10:25:32,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:32,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:25:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:32,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:32,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:32,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:32,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:32,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 10:25:32,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:32,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:32,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 10:25:32,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 10:25:32,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 10:25:32,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:32,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 10:25:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:32,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:32,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:32,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:32,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-14 10:25:32,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 10:25:32,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 10:25:32,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:32,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:32,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:25:32,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:32,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 10:25:32,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:32,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:25:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:32,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:32,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:32,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 10:25:32,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:32,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:25:32,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:32,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:32,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:32,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:32,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:32,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:32,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:25:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:32,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:32,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:32,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:32,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:32,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:25:32,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:32,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:32,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:32,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:32,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:32,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:32,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:25:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:32,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:32,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:32,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:32,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:32,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:25:32,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:32,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:32,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:32,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:32,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:32,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:32,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 10:25:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:32,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:32,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:32,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:32,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:32,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:25:32,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:32,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:32,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:32,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:32,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:32,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:32,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 10:25:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:32,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:32,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:32,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:32,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:32,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:25:32,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:32,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:32,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:25:32,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:32,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:25:32,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:32,428 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-14 10:25:32,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1560495224] [2020-10-14 10:25:32,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:25:32,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 10:25:32,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501548831] [2020-10-14 10:25:32,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 10:25:32,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:25:32,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 10:25:32,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2020-10-14 10:25:32,430 INFO L87 Difference]: Start difference. First operand 172 states and 279 transitions. Second operand 17 states. [2020-10-14 10:25:33,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:25:33,416 INFO L93 Difference]: Finished difference Result 203 states and 328 transitions. [2020-10-14 10:25:33,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 10:25:33,416 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 70 [2020-10-14 10:25:33,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:25:33,419 INFO L225 Difference]: With dead ends: 203 [2020-10-14 10:25:33,419 INFO L226 Difference]: Without dead ends: 177 [2020-10-14 10:25:33,421 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=107, Invalid=595, Unknown=0, NotChecked=0, Total=702 [2020-10-14 10:25:33,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-10-14 10:25:33,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2020-10-14 10:25:33,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-10-14 10:25:33,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 289 transitions. [2020-10-14 10:25:33,444 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 289 transitions. Word has length 70 [2020-10-14 10:25:33,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:25:33,444 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 289 transitions. [2020-10-14 10:25:33,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 10:25:33,444 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 289 transitions. [2020-10-14 10:25:33,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-14 10:25:33,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:25:33,447 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:25:33,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 10:25:33,448 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:25:33,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:25:33,448 INFO L82 PathProgramCache]: Analyzing trace with hash 666264874, now seen corresponding path program 3 times [2020-10-14 10:25:33,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:25:33,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [888719128] [2020-10-14 10:25:33,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:25:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:33,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:33,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:33,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:36,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:37,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:37,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:37,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:38,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:38,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 10:25:38,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 10:25:38,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 10:25:38,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:38,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:38,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 10:25:38,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 10:25:38,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 10:25:38,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:25:38,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:25:38,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:38,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:38,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:38,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:38,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:38,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:38,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:38,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:38,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:38,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:38,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:38,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:38,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:25:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:38,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:38,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:38,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 10:25:38,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:38,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 10:25:38,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:38,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:38,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 10:25:38,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:38,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-14 10:25:38,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:38,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:25:38,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:38,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:38,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:38,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:38,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:38,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:38,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:38,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:38,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:38,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:38,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:38,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:38,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:25:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:38,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:38,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:38,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:25:38,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:38,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 10:25:38,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:38,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:38,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 10:25:38,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:38,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 10:25:38,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:38,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:25:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:38,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:38,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:38,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:38,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:38,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:25:38,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:38,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:38,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:25:38,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:38,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 10:25:38,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:38,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:25:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:38,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:38,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:38,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:38,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:38,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:38,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:38,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:38,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:25:38,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:38,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 10:25:38,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:38,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 10:25:38,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:38,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:38,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:38,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-14 10:25:38,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:38,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 10:25:38,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:38,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:38,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 10:25:38,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 10:25:38,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 10:25:38,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:38,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:25:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:38,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:38,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:38,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 10:25:38,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:38,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 10:25:38,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:38,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:38,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:25:38,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:38,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 10:25:38,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:38,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:25:38,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:38,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:38,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:38,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:38,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:38,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:25:38,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:38,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:38,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:38,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:38,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:38,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:38,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:25:38,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:38,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:38,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:38,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:38,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:38,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:25:38,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:38,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:38,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:38,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:38,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:38,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:38,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 10:25:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:38,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:38,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:38,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:38,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:38,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:25:38,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:38,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:38,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 10:25:38,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:38,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 10:25:38,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:38,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 10:25:38,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:38,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:38,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:38,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:38,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:38,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:25:38,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:38,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:38,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:38,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 10:25:38,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:38,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:38,848 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 36 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-14 10:25:38,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [888719128] [2020-10-14 10:25:38,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:25:38,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-14 10:25:38,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770912565] [2020-10-14 10:25:38,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 10:25:38,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:25:38,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 10:25:38,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2020-10-14 10:25:38,850 INFO L87 Difference]: Start difference. First operand 177 states and 289 transitions. Second operand 16 states. [2020-10-14 10:25:39,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:25:39,694 INFO L93 Difference]: Finished difference Result 201 states and 314 transitions. [2020-10-14 10:25:39,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 10:25:39,695 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 80 [2020-10-14 10:25:39,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:25:39,697 INFO L225 Difference]: With dead ends: 201 [2020-10-14 10:25:39,697 INFO L226 Difference]: Without dead ends: 177 [2020-10-14 10:25:39,698 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=108, Invalid=594, Unknown=0, NotChecked=0, Total=702 [2020-10-14 10:25:39,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-10-14 10:25:39,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2020-10-14 10:25:39,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-10-14 10:25:39,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 286 transitions. [2020-10-14 10:25:39,715 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 286 transitions. Word has length 80 [2020-10-14 10:25:39,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:25:39,716 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 286 transitions. [2020-10-14 10:25:39,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 10:25:39,716 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 286 transitions. [2020-10-14 10:25:39,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-14 10:25:39,718 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:25:39,718 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:25:39,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 10:25:39,719 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:25:39,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:25:39,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1483835908, now seen corresponding path program 4 times [2020-10-14 10:25:39,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:25:39,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1938645715] [2020-10-14 10:25:39,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:25:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:39,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:39,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:40,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:42,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:42,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 10:25:42,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 10:25:42,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2786 [2020-10-14 10:25:42,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:42,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:42,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 10:25:42,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-14 10:25:42,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 10:25:42,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:42,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:25:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:42,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:42,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:42,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:42,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:42,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:42,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:42,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:42,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:42,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:42,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:42,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:42,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:25:42,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:42,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:42,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:42,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 10:25:42,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:42,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 10:25:42,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:42,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:42,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:42,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:42,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:42,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:42,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:25:42,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:42,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:42,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:42,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:25:42,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:42,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 10:25:42,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:42,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:42,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:42,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:42,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:42,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:42,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:25:42,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:42,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:42,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:42,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:42,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:42,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:42,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:42,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:42,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:42,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:42,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:42,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:42,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:25:42,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:42,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:42,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:42,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:42,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:42,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:42,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:42,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:42,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:42,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:42,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:42,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:42,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 10:25:42,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:42,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:42,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:42,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:42,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:42,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:42,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:42,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:42,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:42,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:42,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:42,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:42,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 10:25:42,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:42,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:42,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:42,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:42,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:42,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-14 10:25:42,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 10:25:42,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-14 10:25:42,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:42,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:42,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 10:25:42,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:42,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 10:25:42,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:43,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:25:43,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:43,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:43,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:43,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 10:25:43,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:43,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 10:25:43,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:43,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:43,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 10:25:43,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:43,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 10:25:43,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:43,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:25:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:43,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:43,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:43,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:43,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:43,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:25:43,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:43,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:43,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 10:25:43,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:43,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:25:43,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:25:43,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:25:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:43,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:43,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:43,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:43,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:43,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:43,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:43,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:43,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:25:43,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:43,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:25:43,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:43,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 10:25:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:43,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:43,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:43,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:43,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:43,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:43,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:43,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:43,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:25:43,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:43,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:25:43,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:43,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 10:25:43,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:43,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:43,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:43,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:43,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:43,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:43,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:43,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:43,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:25:43,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:43,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:25:43,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:43,273 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-10-14 10:25:43,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1938645715] [2020-10-14 10:25:43,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:25:43,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-14 10:25:43,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423558798] [2020-10-14 10:25:43,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-14 10:25:43,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:25:43,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-14 10:25:43,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=505, Unknown=0, NotChecked=0, Total=552 [2020-10-14 10:25:43,275 INFO L87 Difference]: Start difference. First operand 177 states and 286 transitions. Second operand 24 states. [2020-10-14 10:25:45,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:25:45,537 INFO L93 Difference]: Finished difference Result 225 states and 361 transitions. [2020-10-14 10:25:45,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 10:25:45,537 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 80 [2020-10-14 10:25:45,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:25:45,540 INFO L225 Difference]: With dead ends: 225 [2020-10-14 10:25:45,540 INFO L226 Difference]: Without dead ends: 223 [2020-10-14 10:25:45,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=262, Invalid=1900, Unknown=0, NotChecked=0, Total=2162 [2020-10-14 10:25:45,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2020-10-14 10:25:45,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 205. [2020-10-14 10:25:45,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-14 10:25:45,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 331 transitions. [2020-10-14 10:25:45,565 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 331 transitions. Word has length 80 [2020-10-14 10:25:45,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:25:45,566 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 331 transitions. [2020-10-14 10:25:45,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-14 10:25:45,566 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 331 transitions. [2020-10-14 10:25:45,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-14 10:25:45,568 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:25:45,568 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:25:45,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 10:25:45,569 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:25:45,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:25:45,569 INFO L82 PathProgramCache]: Analyzing trace with hash -890555678, now seen corresponding path program 1 times [2020-10-14 10:25:45,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:25:45,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2019576620] [2020-10-14 10:25:45,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:25:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:45,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:45,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:46,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:46,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:47,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:48,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:48,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:48,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:50,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:50,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 10:25:50,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 10:25:50,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 10:25:50,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:50,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:50,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 10:25:50,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-14 10:25:50,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 10:25:50,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:50,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:25:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:50,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:50,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:50,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:50,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:50,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:50,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:50,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:50,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:50,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:50,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:50,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:50,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:25:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:50,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:50,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:50,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 10:25:50,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:50,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 10:25:50,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:50,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:50,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:50,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:50,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:50,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:50,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:25:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:50,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:50,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:50,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:25:50,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:50,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 10:25:50,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:50,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:50,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:50,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:50,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:50,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:50,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:25:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:50,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:50,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:50,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:50,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:50,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:50,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:50,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:50,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:50,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:50,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:50,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:50,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:25:50,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:50,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:50,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:50,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:50,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:50,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:25:50,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:50,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:50,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:50,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:50,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:50,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:50,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 10:25:50,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:50,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:50,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:50,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:50,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:50,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:50,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:50,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:50,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:50,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:50,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:50,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:50,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 10:25:50,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:50,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:50,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:50,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:50,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:50,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:50,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:51,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:51,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 10:25:51,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 10:25:51,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-10-14 10:25:51,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:51,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:51,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 10:25:51,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:51,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 10:25:51,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:51,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:25:51,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:51,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:51,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:51,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 10:25:51,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:51,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 10:25:51,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:51,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:51,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 10:25:51,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:51,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 10:25:51,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:51,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:25:51,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:51,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:51,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:51,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:51,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:51,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:25:51,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:51,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:51,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 10:25:51,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:51,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:25:51,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:25:51,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:25:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:51,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:51,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:51,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:51,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:51,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:25:51,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:51,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:51,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:25:51,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:51,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:25:51,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:51,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 10:25:51,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:51,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:51,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:51,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:51,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:51,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:25:51,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:51,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:51,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:25:51,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:51,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:25:51,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:51,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 10:25:51,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:51,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:51,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:51,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:51,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:51,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 10:25:51,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:51,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:51,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 10:25:51,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:51,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 10:25:51,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:51,733 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 7 proven. 27 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-10-14 10:25:51,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2019576620] [2020-10-14 10:25:51,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:25:51,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-14 10:25:51,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716841220] [2020-10-14 10:25:51,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-14 10:25:51,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:25:51,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-14 10:25:51,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2020-10-14 10:25:51,735 INFO L87 Difference]: Start difference. First operand 205 states and 331 transitions. Second operand 27 states. [2020-10-14 10:25:54,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:25:54,903 INFO L93 Difference]: Finished difference Result 261 states and 457 transitions. [2020-10-14 10:25:54,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-14 10:25:54,907 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 81 [2020-10-14 10:25:54,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:25:54,910 INFO L225 Difference]: With dead ends: 261 [2020-10-14 10:25:54,910 INFO L226 Difference]: Without dead ends: 259 [2020-10-14 10:25:54,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=289, Invalid=2363, Unknown=0, NotChecked=0, Total=2652 [2020-10-14 10:25:54,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-10-14 10:25:54,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 239. [2020-10-14 10:25:54,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-10-14 10:25:54,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 404 transitions. [2020-10-14 10:25:54,938 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 404 transitions. Word has length 81 [2020-10-14 10:25:54,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:25:54,938 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 404 transitions. [2020-10-14 10:25:54,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-14 10:25:54,938 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 404 transitions. [2020-10-14 10:25:54,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-14 10:25:54,941 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:25:54,941 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:25:54,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 10:25:54,942 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:25:54,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:25:54,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1170063002, now seen corresponding path program 2 times [2020-10-14 10:25:54,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:25:54,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1613644711] [2020-10-14 10:25:54,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:25:54,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:54,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:55,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:55,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 10:25:55,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:55,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 656 [2020-10-14 10:25:55,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:55,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:55,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 10:25:55,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-14 10:25:55,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 10:25:55,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:55,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:25:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:55,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:55,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:55,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:55,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:55,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:55,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:55,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:55,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:55,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:55,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:55,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:55,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:25:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:55,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:55,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:55,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 10:25:55,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:55,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 10:25:55,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:55,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:55,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:55,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:55,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:55,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:55,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:25:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:55,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:55,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:55,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:25:55,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:55,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 10:25:55,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:55,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:55,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:55,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:55,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:55,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:55,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:25:55,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:55,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:55,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:55,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:55,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:55,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:25:55,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:55,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:55,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:55,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:55,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:55,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:55,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:25:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:55,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:55,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:55,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:55,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:55,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:25:55,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:55,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:55,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:55,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:55,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:55,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:55,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 10:25:55,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:55,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:55,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:55,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:25:55,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:55,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:25:55,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:55,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:55,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:25:55,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:55,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:25:55,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:55,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 10:25:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:55,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:55,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:55,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 10:25:55,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:55,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 10:25:55,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:55,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:55,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 10:25:55,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:55,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 10:25:55,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:56,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:25:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:56,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:56,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:56,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 10:25:56,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:56,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 10:25:56,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:56,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:56,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 10:25:56,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:56,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 10:25:56,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:56,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:25:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:56,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:56,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:56,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:56,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:56,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:25:56,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:56,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:56,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:25:56,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:56,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:25:56,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:56,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:25:56,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:56,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:56,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:56,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:56,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:56,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:56,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:56,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:56,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:25:56,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:56,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:25:56,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:56,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 10:25:56,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:56,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:56,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:56,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:56,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:56,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:56,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:56,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:56,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:25:56,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:56,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:25:56,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:25:56,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 10:25:56,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:56,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:56,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:25:56,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:25:56,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:25:56,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:25:56,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:25:56,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:25:56,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:25:56,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:25:56,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:25:56,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:25:56,118 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 18 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-10-14 10:25:56,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1613644711] [2020-10-14 10:25:56,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:25:56,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 10:25:56,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535673483] [2020-10-14 10:25:56,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 10:25:56,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:25:56,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 10:25:56,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-10-14 10:25:56,120 INFO L87 Difference]: Start difference. First operand 239 states and 404 transitions. Second operand 21 states. [2020-10-14 10:25:58,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:25:58,056 INFO L93 Difference]: Finished difference Result 301 states and 546 transitions. [2020-10-14 10:25:58,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 10:25:58,056 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 81 [2020-10-14 10:25:58,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:25:58,061 INFO L225 Difference]: With dead ends: 301 [2020-10-14 10:25:58,061 INFO L226 Difference]: Without dead ends: 299 [2020-10-14 10:25:58,062 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=205, Invalid=1435, Unknown=0, NotChecked=0, Total=1640 [2020-10-14 10:25:58,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-10-14 10:25:58,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 253. [2020-10-14 10:25:58,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-10-14 10:25:58,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 463 transitions. [2020-10-14 10:25:58,090 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 463 transitions. Word has length 81 [2020-10-14 10:25:58,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:25:58,091 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 463 transitions. [2020-10-14 10:25:58,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 10:25:58,091 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 463 transitions. [2020-10-14 10:25:58,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 10:25:58,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:25:58,095 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:25:58,095 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 10:25:58,095 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:25:58,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:25:58,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1557043264, now seen corresponding path program 1 times [2020-10-14 10:25:58,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:25:58,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1434714426] [2020-10-14 10:25:58,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:25:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:25:58,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:58,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:25:58,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:00,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:00,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 10:26:00,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 10:26:00,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1925 [2020-10-14 10:26:00,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:00,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:00,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 10:26:00,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-14 10:26:00,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 10:26:00,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:26:00,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:26:00,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:00,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:00,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:00,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:00,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:00,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:00,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:00,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:00,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:00,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:00,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:00,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:00,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:26:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:00,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:00,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:00,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 10:26:00,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:00,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 10:26:00,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:00,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:00,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:00,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:00,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:00,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:00,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:26:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:00,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:00,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:00,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:26:00,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:00,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 10:26:00,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:00,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:00,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:00,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:00,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:00,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:00,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:26:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:00,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:00,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:00,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:00,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:00,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:26:00,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:00,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:00,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:00,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:00,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:00,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:00,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:26:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:00,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:00,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:00,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:00,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:00,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:26:00,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:00,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:00,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:00,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:00,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:00,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:00,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 10:26:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:00,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:00,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:00,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:00,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:00,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:00,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:00,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:00,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:00,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:00,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:00,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:00,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 10:26:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:00,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:00,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:00,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:00,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 10:26:00,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 10:26:00,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-14 10:26:00,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:00,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:00,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 10:26:00,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:00,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 10:26:00,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:00,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:26:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:00,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:00,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:00,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 10:26:00,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:00,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 10:26:00,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:00,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:00,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 10:26:00,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:00,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 10:26:00,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:00,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:26:00,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:00,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:00,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:00,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:00,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:00,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:00,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:00,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:00,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:00,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:00,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:26:00,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:00,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:26:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:00,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:00,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:00,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:00,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:00,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:00,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:00,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:00,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:00,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:00,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:26:00,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:00,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 10:26:00,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:00,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:00,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:00,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:00,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:00,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:00,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:00,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:00,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:00,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:00,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:26:00,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:00,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 10:26:00,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:00,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:00,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:00,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:00,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:00,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:26:00,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:00,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 10:26:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 10:26:00,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:00,892 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 16 proven. 15 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-10-14 10:26:00,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1434714426] [2020-10-14 10:26:00,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:26:00,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-14 10:26:00,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452106101] [2020-10-14 10:26:00,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-14 10:26:00,894 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:26:00,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-14 10:26:00,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=548, Unknown=0, NotChecked=0, Total=600 [2020-10-14 10:26:00,895 INFO L87 Difference]: Start difference. First operand 253 states and 463 transitions. Second operand 25 states. [2020-10-14 10:26:03,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:26:03,532 INFO L93 Difference]: Finished difference Result 293 states and 536 transitions. [2020-10-14 10:26:03,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 10:26:03,533 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 82 [2020-10-14 10:26:03,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:26:03,538 INFO L225 Difference]: With dead ends: 293 [2020-10-14 10:26:03,538 INFO L226 Difference]: Without dead ends: 291 [2020-10-14 10:26:03,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=262, Invalid=1994, Unknown=0, NotChecked=0, Total=2256 [2020-10-14 10:26:03,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-10-14 10:26:03,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 260. [2020-10-14 10:26:03,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-10-14 10:26:03,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 485 transitions. [2020-10-14 10:26:03,572 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 485 transitions. Word has length 82 [2020-10-14 10:26:03,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:26:03,573 INFO L479 AbstractCegarLoop]: Abstraction has 260 states and 485 transitions. [2020-10-14 10:26:03,573 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-14 10:26:03,573 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 485 transitions. [2020-10-14 10:26:03,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-14 10:26:03,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:26:03,581 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:26:03,581 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 10:26:03,582 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:26:03,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:26:03,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1329859613, now seen corresponding path program 2 times [2020-10-14 10:26:03,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:26:03,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [419606734] [2020-10-14 10:26:03,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:26:03,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:03,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:03,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:03,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:04,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:05,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:05,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:08,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:08,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-14 10:26:08,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 10:26:08,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 10:26:08,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:08,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:08,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 10:26:08,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-14 10:26:08,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 10:26:08,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:08,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:26:08,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:08,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:08,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:08,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:08,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:08,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:08,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:08,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:08,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:08,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:08,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:08,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:08,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:26:08,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:08,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:08,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:08,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 10:26:08,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:08,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 10:26:08,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:08,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:08,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:08,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:08,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:08,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:08,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:26:08,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:08,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:08,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:08,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:08,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:08,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:08,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:08,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:08,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:08,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:08,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:08,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:08,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:26:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:08,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:08,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:08,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:26:08,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:08,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 10:26:08,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:08,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:08,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:08,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:08,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:08,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:08,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:26:08,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:08,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:08,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:08,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:08,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:08,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:08,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:08,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:08,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:08,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:08,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:08,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:08,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:26:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:08,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:08,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:08,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:08,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:08,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:26:08,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:08,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:08,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:08,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:08,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:08,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:08,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 10:26:08,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:08,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:08,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:08,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:08,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-14 10:26:08,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 10:26:08,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-14 10:26:08,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:08,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:08,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 10:26:08,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 10:26:08,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 10:26:08,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:26:08,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:26:08,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:08,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:08,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:08,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:08,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:08,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:08,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:08,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:08,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:08,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:08,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:08,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:08,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:26:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:08,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:08,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:09,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:09,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 10:26:09,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 10:26:09,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 10:26:09,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:09,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:09,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 10:26:09,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:09,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 10:26:09,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:09,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:26:09,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:09,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:09,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:09,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:09,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:09,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:09,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:09,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:09,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:09,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:09,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:09,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:09,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:26:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:09,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:09,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:09,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 10:26:09,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:09,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 10:26:09,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:09,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:09,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 10:26:09,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:09,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 10:26:09,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:09,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:26:09,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:09,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:09,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:09,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:09,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:09,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:26:09,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:09,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:09,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 10:26:09,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:09,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 10:26:09,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:09,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:26:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:09,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:09,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:09,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:09,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:09,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:09,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:09,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:09,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:09,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:09,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:26:09,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:09,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 10:26:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:09,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:09,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:09,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:09,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:09,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:26:09,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:09,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:09,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:09,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 10:26:09,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:09,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:09,213 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 33 proven. 15 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-10-14 10:26:09,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [419606734] [2020-10-14 10:26:09,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:26:09,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 10:26:09,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204437465] [2020-10-14 10:26:09,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 10:26:09,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:26:09,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 10:26:09,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-10-14 10:26:09,215 INFO L87 Difference]: Start difference. First operand 260 states and 485 transitions. Second operand 14 states. [2020-10-14 10:26:10,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:26:10,360 INFO L93 Difference]: Finished difference Result 538 states and 1213 transitions. [2020-10-14 10:26:10,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 10:26:10,362 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 95 [2020-10-14 10:26:10,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:26:10,367 INFO L225 Difference]: With dead ends: 538 [2020-10-14 10:26:10,367 INFO L226 Difference]: Without dead ends: 307 [2020-10-14 10:26:10,372 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=154, Invalid=548, Unknown=0, NotChecked=0, Total=702 [2020-10-14 10:26:10,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-10-14 10:26:10,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 278. [2020-10-14 10:26:10,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-10-14 10:26:10,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 510 transitions. [2020-10-14 10:26:10,399 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 510 transitions. Word has length 95 [2020-10-14 10:26:10,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:26:10,400 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 510 transitions. [2020-10-14 10:26:10,400 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 10:26:10,400 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 510 transitions. [2020-10-14 10:26:10,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 10:26:10,406 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:26:10,406 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:26:10,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 10:26:10,407 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:26:10,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:26:10,407 INFO L82 PathProgramCache]: Analyzing trace with hash 855054373, now seen corresponding path program 2 times [2020-10-14 10:26:10,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:26:10,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [690402339] [2020-10-14 10:26:10,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:26:10,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:10,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:10,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:11,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:12,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:14,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:15,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:15,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 10:26:15,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 10:26:15,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 10:26:15,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:15,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:15,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 10:26:15,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-14 10:26:15,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 10:26:15,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:15,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:26:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:15,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:15,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:15,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:15,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:15,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:26:15,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:15,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:15,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:15,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:15,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:15,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:15,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:26:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:15,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:15,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:15,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 10:26:15,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:15,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 10:26:15,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:15,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:15,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:15,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:15,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:15,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:15,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:26:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:15,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:15,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:15,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:15,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:15,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:26:15,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:15,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:15,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:15,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:15,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:15,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:15,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:26:15,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:15,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:15,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:15,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:26:15,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:15,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:26:15,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:15,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:15,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:15,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:15,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:15,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:15,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:26:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:15,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:15,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:15,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:15,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:15,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:26:15,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:15,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:15,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:15,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:15,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:15,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:15,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:26:15,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:15,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:15,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:15,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:15,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:15,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:26:15,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:15,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:15,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:15,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:15,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:15,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:15,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 10:26:15,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:15,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:15,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:15,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-14 10:26:15,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:15,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 10:26:15,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:15,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:15,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 10:26:15,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:15,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 10:26:15,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:15,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:26:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:15,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:15,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:15,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:15,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:15,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:15,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:15,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:15,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:15,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:15,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:26:15,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:15,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:26:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:15,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:15,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:15,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 10:26:15,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:15,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 10:26:15,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:15,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:15,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 10:26:15,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:15,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 10:26:15,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:16,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:26:16,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:16,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:16,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:16,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:16,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:16,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:26:16,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:16,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:16,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:16,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:16,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:26:16,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:26:16,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:26:16,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:16,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:16,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:16,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 10:26:16,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:16,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 10:26:16,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:16,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:16,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:16,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:16,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 10:26:16,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:26:16,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:26:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:16,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:16,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:16,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:16,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:16,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:16,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:16,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:16,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:16,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:16,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:16,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:26:16,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:26:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:16,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:16,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:16,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:16,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:16,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:16,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:16,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:16,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:16,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:16,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:16,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:26:16,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 10:26:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:16,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:16,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:16,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:16,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:16,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:26:16,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:16,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:16,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:16,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:16,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:26:16,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:16,087 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 29 proven. 26 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-14 10:26:16,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [690402339] [2020-10-14 10:26:16,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:26:16,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 10:26:16,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426706442] [2020-10-14 10:26:16,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 10:26:16,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:26:16,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 10:26:16,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-10-14 10:26:16,092 INFO L87 Difference]: Start difference. First operand 278 states and 510 transitions. Second operand 21 states. [2020-10-14 10:26:18,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:26:18,112 INFO L93 Difference]: Finished difference Result 329 states and 568 transitions. [2020-10-14 10:26:18,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 10:26:18,115 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2020-10-14 10:26:18,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:26:18,118 INFO L225 Difference]: With dead ends: 329 [2020-10-14 10:26:18,118 INFO L226 Difference]: Without dead ends: 327 [2020-10-14 10:26:18,120 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=208, Invalid=1432, Unknown=0, NotChecked=0, Total=1640 [2020-10-14 10:26:18,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-14 10:26:18,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 232. [2020-10-14 10:26:18,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-10-14 10:26:18,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 404 transitions. [2020-10-14 10:26:18,143 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 404 transitions. Word has length 96 [2020-10-14 10:26:18,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:26:18,143 INFO L479 AbstractCegarLoop]: Abstraction has 232 states and 404 transitions. [2020-10-14 10:26:18,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 10:26:18,143 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 404 transitions. [2020-10-14 10:26:18,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-14 10:26:18,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:26:18,146 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:26:18,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 10:26:18,147 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:26:18,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:26:18,147 INFO L82 PathProgramCache]: Analyzing trace with hash -2050076275, now seen corresponding path program 4 times [2020-10-14 10:26:18,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:26:18,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679514553] [2020-10-14 10:26:18,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:26:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:18,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:18,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:20,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:20,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:21,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:21,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:22,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:22,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:23,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:23,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:23,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 10:26:23,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 10:26:23,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 10:26:23,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:23,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:23,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 10:26:23,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 10:26:23,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 10:26:23,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:23,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:26:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:23,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:23,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:23,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:23,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:23,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:23,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:23,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:23,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:23,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:23,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:23,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:23,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:26:23,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:23,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:23,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:23,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 10:26:23,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:23,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 10:26:23,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:23,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:23,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 10:26:23,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:23,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-14 10:26:23,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:23,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:26:23,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:23,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:23,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:23,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:23,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:23,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:26:23,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:23,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:23,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 10:26:23,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 10:26:23,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 10:26:23,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:23,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:26:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:23,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:23,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:23,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:26:23,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:23,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 10:26:23,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:23,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:23,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 10:26:23,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 10:26:23,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 10:26:23,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:24,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:26:24,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:24,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:24,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:24,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:24,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:24,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:26:24,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:24,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:24,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:24,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:24,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 10:26:24,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:26:24,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:26:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:24,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:24,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:24,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:24,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:24,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 10:26:24,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:24,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:24,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 10:26:24,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:24,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 10:26:24,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:26:24,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 10:26:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:24,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:24,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:24,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-14 10:26:24,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:24,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 10:26:24,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:24,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:24,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:24,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:24,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 10:26:24,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:24,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:26:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:24,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:24,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:24,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:24,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:24,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:24,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:24,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:24,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:24,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:24,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:24,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:26:24,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:26:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:24,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:24,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:24,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 10:26:24,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:24,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 10:26:24,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:24,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:24,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:24,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:24,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:24,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:26:24,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:26:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:24,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:24,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:24,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:24,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:24,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:24,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:24,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:24,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:24,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:24,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:24,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:26:24,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:26:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:24,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:24,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:24,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:24,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:24,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:26:24,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:24,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:24,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:24,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:24,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:24,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:26:24,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 10:26:24,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:24,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:24,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:24,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:24,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:24,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:26:24,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:24,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:24,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:24,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:24,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:26:24,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:24,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 10:26:24,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:24,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:24,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:24,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:24,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:24,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:26:24,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:24,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:24,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:24,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:24,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:26:24,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:24,270 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 12 proven. 28 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2020-10-14 10:26:24,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679514553] [2020-10-14 10:26:24,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:26:24,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 10:26:24,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186497067] [2020-10-14 10:26:24,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 10:26:24,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:26:24,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 10:26:24,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=460, Unknown=0, NotChecked=0, Total=506 [2020-10-14 10:26:24,273 INFO L87 Difference]: Start difference. First operand 232 states and 404 transitions. Second operand 23 states. [2020-10-14 10:26:26,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:26:26,365 INFO L93 Difference]: Finished difference Result 321 states and 524 transitions. [2020-10-14 10:26:26,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 10:26:26,366 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 90 [2020-10-14 10:26:26,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:26:26,369 INFO L225 Difference]: With dead ends: 321 [2020-10-14 10:26:26,369 INFO L226 Difference]: Without dead ends: 305 [2020-10-14 10:26:26,370 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=173, Invalid=1467, Unknown=0, NotChecked=0, Total=1640 [2020-10-14 10:26:26,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2020-10-14 10:26:26,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 299. [2020-10-14 10:26:26,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-14 10:26:26,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 500 transitions. [2020-10-14 10:26:26,401 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 500 transitions. Word has length 90 [2020-10-14 10:26:26,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:26:26,401 INFO L479 AbstractCegarLoop]: Abstraction has 299 states and 500 transitions. [2020-10-14 10:26:26,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 10:26:26,402 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 500 transitions. [2020-10-14 10:26:26,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-14 10:26:26,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:26:26,405 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:26:26,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 10:26:26,406 INFO L427 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:26:26,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:26:26,406 INFO L82 PathProgramCache]: Analyzing trace with hash 2088576911, now seen corresponding path program 1 times [2020-10-14 10:26:26,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:26:26,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1294847467] [2020-10-14 10:26:26,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:26:26,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:26,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:26,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:29,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:31,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:31,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:31,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:31,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:31,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 10:26:31,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 10:26:31,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 10:26:31,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:31,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:31,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 10:26:31,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 10:26:31,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 10:26:31,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:31,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:26:31,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:31,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:31,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:31,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:31,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:31,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:31,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:31,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:31,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:31,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:31,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:31,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:31,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:26:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:31,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:31,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:31,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 10:26:31,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:31,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-14 10:26:31,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:31,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:31,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 10:26:31,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:31,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-14 10:26:31,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:32,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:26:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:32,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:32,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:32,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:32,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:32,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:26:32,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:32,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:32,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:32,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:32,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 10:26:32,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:32,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:26:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:32,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:32,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:32,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:26:32,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:32,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 10:26:32,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:32,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:32,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 10:26:32,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:32,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 10:26:32,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:32,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:26:32,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:32,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:32,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:32,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:32,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:32,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 10:26:32,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:32,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:32,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 10:26:32,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:32,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 10:26:32,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:26:32,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:26:32,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:32,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:32,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:32,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:32,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:32,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 10:26:32,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:32,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:32,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 10:26:32,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 10:26:32,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 10:26:32,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:32,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 10:26:32,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:32,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:32,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:32,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-14 10:26:32,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:32,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 10:26:32,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:32,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:32,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:32,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:32,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 10:26:32,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:32,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:26:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:32,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:32,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:32,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:32,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:32,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:26:32,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:32,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:32,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:32,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:32,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:32,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:26:32,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:26:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:32,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:32,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:32,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 10:26:32,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:32,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:26:32,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:32,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:32,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:32,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:32,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:32,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:32,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:26:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:32,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:32,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:32,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:32,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:32,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:26:32,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:32,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:32,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:32,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:32,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:32,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:26:32,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:26:32,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:32,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:32,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:32,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:32,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:32,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:26:32,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:32,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:32,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:32,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:32,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:32,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:26:32,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 10:26:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:32,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:32,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:32,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:32,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:32,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:26:32,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:32,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:32,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:32,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:32,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:26:32,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:32,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 10:26:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:32,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:32,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:32,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:32,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:32,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:26:32,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:32,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:32,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:32,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:32,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:26:32,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:32,411 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 16 proven. 22 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-14 10:26:32,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1294847467] [2020-10-14 10:26:32,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:26:32,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 10:26:32,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318061182] [2020-10-14 10:26:32,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 10:26:32,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:26:32,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 10:26:32,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2020-10-14 10:26:32,413 INFO L87 Difference]: Start difference. First operand 299 states and 500 transitions. Second operand 23 states. [2020-10-14 10:26:34,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:26:34,332 INFO L93 Difference]: Finished difference Result 457 states and 718 transitions. [2020-10-14 10:26:34,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 10:26:34,332 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 90 [2020-10-14 10:26:34,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:26:34,336 INFO L225 Difference]: With dead ends: 457 [2020-10-14 10:26:34,336 INFO L226 Difference]: Without dead ends: 417 [2020-10-14 10:26:34,337 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=154, Invalid=1178, Unknown=0, NotChecked=0, Total=1332 [2020-10-14 10:26:34,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2020-10-14 10:26:34,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 399. [2020-10-14 10:26:34,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2020-10-14 10:26:34,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 646 transitions. [2020-10-14 10:26:34,384 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 646 transitions. Word has length 90 [2020-10-14 10:26:34,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:26:34,384 INFO L479 AbstractCegarLoop]: Abstraction has 399 states and 646 transitions. [2020-10-14 10:26:34,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 10:26:34,384 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 646 transitions. [2020-10-14 10:26:34,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-14 10:26:34,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:26:34,388 INFO L422 BasicCegarLoop]: trace histogram [7, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:26:34,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 10:26:34,389 INFO L427 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:26:34,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:26:34,389 INFO L82 PathProgramCache]: Analyzing trace with hash 550392298, now seen corresponding path program 5 times [2020-10-14 10:26:34,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:26:34,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [14407704] [2020-10-14 10:26:34,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:26:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:34,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:34,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:39,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:39,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:39,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 10:26:39,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 10:26:39,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 10:26:39,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:39,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:39,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 10:26:39,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-14 10:26:39,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 10:26:39,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:39,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:26:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:39,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:39,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:39,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:39,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:39,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:39,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:39,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:39,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:39,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:39,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:39,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:39,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:26:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:39,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:39,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:39,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 10:26:39,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:39,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 10:26:39,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:39,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:39,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:39,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:39,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:39,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:39,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:26:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:39,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:39,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:39,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:26:39,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:39,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 10:26:39,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:39,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:39,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:39,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:39,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:39,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:39,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:26:39,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:39,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:39,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:39,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:39,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:39,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:26:39,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:39,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:39,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:39,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:39,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:39,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:39,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:26:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:39,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:39,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:39,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:39,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:39,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:26:39,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:39,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:39,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:39,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:39,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:39,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:39,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 10:26:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:39,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:39,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:39,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:26:39,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:39,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 10:26:39,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:39,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:39,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:39,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:39,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:39,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:39,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:26:39,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:39,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:39,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:39,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:39,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:39,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:39,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:39,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:39,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:26:39,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:26:39,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:39,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:39,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:39,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:39,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:39,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:39,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:39,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:39,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:39,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:39,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:39,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:26:39,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 10:26:39,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:39,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:39,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:39,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-14 10:26:39,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:39,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 10:26:39,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:39,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:39,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 10:26:39,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:39,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 10:26:39,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:39,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:26:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:39,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:39,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:39,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:39,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:39,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:26:39,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:39,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:39,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:39,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:39,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:26:39,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:39,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:26:39,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:39,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:39,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:39,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 10:26:39,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:39,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 10:26:39,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:39,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:39,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 10:26:39,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:39,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 10:26:39,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:39,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:26:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:39,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:39,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:39,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:39,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:39,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:39,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:39,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:39,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:39,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:39,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:26:39,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:39,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:26:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:39,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:39,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:39,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:39,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:39,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:26:39,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:39,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:39,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 10:26:39,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:39,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 10:26:39,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:39,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 10:26:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:39,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:39,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:39,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:39,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:39,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:26:39,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:39,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:39,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:39,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:39,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:26:39,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:39,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 10:26:39,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:39,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:39,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:39,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:39,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:39,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:39,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:39,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:39,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:39,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:39,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:26:39,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:39,955 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 21 proven. 21 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-10-14 10:26:39,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [14407704] [2020-10-14 10:26:39,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:26:39,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-14 10:26:39,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977521684] [2020-10-14 10:26:39,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-14 10:26:39,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:26:39,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-14 10:26:39,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2020-10-14 10:26:39,957 INFO L87 Difference]: Start difference. First operand 399 states and 646 transitions. Second operand 18 states. [2020-10-14 10:26:41,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:26:41,704 INFO L93 Difference]: Finished difference Result 711 states and 1133 transitions. [2020-10-14 10:26:41,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 10:26:41,705 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 100 [2020-10-14 10:26:41,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:26:41,710 INFO L225 Difference]: With dead ends: 711 [2020-10-14 10:26:41,711 INFO L226 Difference]: Without dead ends: 671 [2020-10-14 10:26:41,712 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=165, Invalid=1025, Unknown=0, NotChecked=0, Total=1190 [2020-10-14 10:26:41,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2020-10-14 10:26:41,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 456. [2020-10-14 10:26:41,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 456 states. [2020-10-14 10:26:41,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 819 transitions. [2020-10-14 10:26:41,770 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 819 transitions. Word has length 100 [2020-10-14 10:26:41,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:26:41,770 INFO L479 AbstractCegarLoop]: Abstraction has 456 states and 819 transitions. [2020-10-14 10:26:41,770 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-14 10:26:41,770 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 819 transitions. [2020-10-14 10:26:41,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-14 10:26:41,777 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:26:41,777 INFO L422 BasicCegarLoop]: trace histogram [7, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:26:41,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 10:26:41,777 INFO L427 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:26:41,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:26:41,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1172221906, now seen corresponding path program 2 times [2020-10-14 10:26:41,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:26:41,778 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1648937884] [2020-10-14 10:26:41,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:26:41,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:41,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:41,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:46,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:46,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 10:26:46,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 10:26:46,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 10:26:46,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:46,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:46,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 10:26:46,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-14 10:26:46,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 10:26:46,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:46,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:26:46,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:46,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:46,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:46,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:46,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:46,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:46,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:46,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:46,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:46,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:46,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:46,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:47,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:26:47,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:47,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:47,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:47,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 10:26:47,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:47,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 10:26:47,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:47,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:47,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:47,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:47,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:47,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:47,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:26:47,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:47,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:47,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:47,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:47,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:47,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:47,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:47,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:47,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:47,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:47,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:47,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:47,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:26:47,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:47,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:47,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:47,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 10:26:47,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:47,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 10:26:47,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:47,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:47,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:47,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:47,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:47,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:47,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:26:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:47,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:47,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:47,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:26:47,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:47,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 10:26:47,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:47,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:47,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:47,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:47,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:47,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:47,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:26:47,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:47,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:47,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:47,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:47,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:47,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:26:47,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:47,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:47,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:47,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:47,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:47,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:47,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:26:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:47,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:47,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:47,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:47,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:47,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:26:47,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:47,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:47,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:47,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:47,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:47,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:47,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 10:26:47,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:47,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:47,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:47,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:47,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:47,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:26:47,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:47,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:47,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:47,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:47,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:47,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:47,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 10:26:47,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:47,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:47,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:47,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-14 10:26:47,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:47,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 10:26:47,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:47,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:47,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 10:26:47,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:47,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 10:26:47,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:47,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:26:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:47,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:47,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:47,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:47,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:47,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:26:47,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:47,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:47,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:47,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:47,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:26:47,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:47,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:26:47,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:47,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:47,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:47,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 10:26:47,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:47,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 10:26:47,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:47,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:47,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 10:26:47,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:47,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 10:26:47,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:47,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:26:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:47,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:47,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:47,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:47,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:47,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:26:47,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:47,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:47,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 10:26:47,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:47,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 10:26:47,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:47,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:26:47,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:47,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:47,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:47,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:47,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:47,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:47,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:47,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:47,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:47,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:47,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:26:47,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:47,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 10:26:47,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:47,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:47,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:47,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:47,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:47,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:47,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:47,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:47,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:47,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:47,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:26:47,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:47,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 10:26:47,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:47,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:47,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:47,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:47,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:47,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:47,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:47,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:47,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:47,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:47,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:26:47,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:47,396 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 18 proven. 26 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2020-10-14 10:26:47,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1648937884] [2020-10-14 10:26:47,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:26:47,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 10:26:47,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151665466] [2020-10-14 10:26:47,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 10:26:47,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:26:47,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 10:26:47,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-10-14 10:26:47,398 INFO L87 Difference]: Start difference. First operand 456 states and 819 transitions. Second operand 19 states. [2020-10-14 10:26:49,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:26:49,619 INFO L93 Difference]: Finished difference Result 813 states and 1461 transitions. [2020-10-14 10:26:49,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 10:26:49,620 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 100 [2020-10-14 10:26:49,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:26:49,629 INFO L225 Difference]: With dead ends: 813 [2020-10-14 10:26:49,629 INFO L226 Difference]: Without dead ends: 773 [2020-10-14 10:26:49,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=213, Invalid=1347, Unknown=0, NotChecked=0, Total=1560 [2020-10-14 10:26:49,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2020-10-14 10:26:49,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 558. [2020-10-14 10:26:49,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2020-10-14 10:26:49,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 1141 transitions. [2020-10-14 10:26:49,715 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 1141 transitions. Word has length 100 [2020-10-14 10:26:49,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:26:49,715 INFO L479 AbstractCegarLoop]: Abstraction has 558 states and 1141 transitions. [2020-10-14 10:26:49,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 10:26:49,715 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 1141 transitions. [2020-10-14 10:26:49,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-14 10:26:49,724 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:26:49,724 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:26:49,725 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 10:26:49,725 INFO L427 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:26:49,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:26:49,725 INFO L82 PathProgramCache]: Analyzing trace with hash 452165552, now seen corresponding path program 3 times [2020-10-14 10:26:49,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:26:49,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1459703644] [2020-10-14 10:26:49,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:26:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:49,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:49,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:50,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:50,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:50,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:50,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:50,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:53,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:54,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:54,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-14 10:26:54,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 10:26:54,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 10:26:54,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:54,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:54,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 10:26:54,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 10:26:54,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 10:26:54,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:54,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:26:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:54,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:54,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:54,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:54,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:54,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:26:54,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:54,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:54,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:54,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:54,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:54,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 10:26:54,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:26:54,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:54,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:55,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:55,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 10:26:55,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:55,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 333 [2020-10-14 10:26:55,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:55,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:55,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 10:26:55,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:55,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 10:26:55,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:55,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:26:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:55,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:55,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:55,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:55,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:55,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 10:26:55,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:55,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:55,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 10:26:55,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 10:26:55,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 10:26:55,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:55,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:26:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:55,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:55,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:55,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 10:26:55,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:55,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 10:26:55,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:55,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:55,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 10:26:55,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 10:26:55,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 10:26:55,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:55,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:26:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:55,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:55,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:55,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:26:55,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:55,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 10:26:55,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:55,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:55,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:55,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:55,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 10:26:55,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:55,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:26:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:55,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:55,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:55,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:55,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:55,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:26:55,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:55,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:55,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:55,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:55,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:55,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:55,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:26:55,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:55,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:55,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:55,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:55,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:55,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:26:55,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:55,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:55,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:55,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:55,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:55,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:55,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 10:26:55,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:55,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:55,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:55,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:26:55,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:55,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:26:55,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:55,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:55,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 10:26:55,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:55,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 10:26:55,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:55,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 10:26:55,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:55,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:55,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:55,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 10:26:55,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:55,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-14 10:26:55,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:55,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:55,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 10:26:55,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 10:26:55,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-14 10:26:55,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:55,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:26:55,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:55,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:55,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:55,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 10:26:55,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:55,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 10:26:55,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:55,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:55,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:55,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:55,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 10:26:55,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:55,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:26:55,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:55,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:55,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:55,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:55,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:55,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:26:55,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:55,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:55,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:55,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:55,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:55,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:55,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:26:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:55,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:55,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:55,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:55,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:55,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:26:55,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:55,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:55,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:55,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:55,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:55,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:55,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 10:26:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:55,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:56,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:56,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-14 10:26:56,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:56,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 10:26:56,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:56,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:56,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 10:26:56,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:56,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 10:26:56,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:56,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:26:56,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:56,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:56,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:56,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:56,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:56,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:26:56,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:56,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:56,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:56,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:56,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:26:56,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:56,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:26:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:56,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:56,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:56,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-14 10:26:56,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:56,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 10:26:56,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:56,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:56,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 10:26:56,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:56,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 10:26:56,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:56,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:26:56,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:56,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:56,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:56,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:56,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:56,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:26:56,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:56,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:56,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:56,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:56,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:26:56,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:56,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:26:56,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:56,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:56,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:56,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 10:26:56,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:56,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 10:26:56,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:56,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:56,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:26:56,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:56,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 10:26:56,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:56,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:26:56,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:56,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:56,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:56,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:56,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:56,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:26:56,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:56,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:56,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:56,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:56,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:56,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:56,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:26:56,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:56,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:56,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:56,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:56,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:56,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:26:56,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:56,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:56,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:56,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:26:56,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:56,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:56,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-14 10:26:56,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:56,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:56,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:26:56,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:26:56,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:26:56,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:26:56,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:26:56,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:26:56,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:26:56,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 10:26:56,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:26:56,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:26:56,237 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 104 proven. 71 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2020-10-14 10:26:56,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1459703644] [2020-10-14 10:26:56,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:26:56,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-14 10:26:56,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516904733] [2020-10-14 10:26:56,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-14 10:26:56,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:26:56,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-14 10:26:56,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462 [2020-10-14 10:26:56,239 INFO L87 Difference]: Start difference. First operand 558 states and 1141 transitions. Second operand 22 states. [2020-10-14 10:26:58,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:26:58,178 INFO L93 Difference]: Finished difference Result 713 states and 1320 transitions. [2020-10-14 10:26:58,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 10:26:58,180 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 130 [2020-10-14 10:26:58,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:26:58,186 INFO L225 Difference]: With dead ends: 713 [2020-10-14 10:26:58,186 INFO L226 Difference]: Without dead ends: 582 [2020-10-14 10:26:58,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=195, Invalid=1287, Unknown=0, NotChecked=0, Total=1482 [2020-10-14 10:26:58,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2020-10-14 10:26:58,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 558. [2020-10-14 10:26:58,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2020-10-14 10:26:58,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 1106 transitions. [2020-10-14 10:26:58,256 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 1106 transitions. Word has length 130 [2020-10-14 10:26:58,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:26:58,257 INFO L479 AbstractCegarLoop]: Abstraction has 558 states and 1106 transitions. [2020-10-14 10:26:58,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-14 10:26:58,257 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 1106 transitions. [2020-10-14 10:26:58,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-14 10:26:58,266 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:26:58,266 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:26:58,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 10:26:58,267 INFO L427 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:26:58,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:26:58,267 INFO L82 PathProgramCache]: Analyzing trace with hash 376137930, now seen corresponding path program 4 times [2020-10-14 10:26:58,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:26:58,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [687572669] [2020-10-14 10:26:58,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:26:58,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:26:58,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:58,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:58,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:59,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:26:59,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:00,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:01,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:01,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:02,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:03,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:03,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-14 10:27:03,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 10:27:03,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 10:27:03,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:03,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:03,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 10:27:03,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 10:27:03,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-14 10:27:03,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:27:03,862 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2020-10-14 10:27:04,076 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2020-10-14 10:27:04,312 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2020-10-14 10:27:04,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:27:04,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:04,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:04,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:04,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:04,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:04,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:04,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:04,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:04,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:04,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:04,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:04,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:04,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:27:04,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:04,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:04,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:04,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 10:27:04,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:04,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-10-14 10:27:04,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:04,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:04,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 10:27:04,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:04,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 10:27:04,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:05,032 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 43 [2020-10-14 10:27:05,239 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-10-14 10:27:05,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:27:05,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:05,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:05,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:05,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:05,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:05,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:27:05,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:05,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:05,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:05,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:05,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 10:27:05,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:05,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:27:05,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:05,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:05,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:05,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 10:27:05,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:05,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-14 10:27:05,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:05,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:05,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 10:27:05,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:05,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 10:27:05,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:05,670 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 33 [2020-10-14 10:27:05,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:27:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:05,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:05,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:05,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:05,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:05,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:05,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:05,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:05,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:05,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:05,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:05,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:27:05,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:27:05,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:05,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:05,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:05,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:27:05,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:05,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 10:27:05,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:05,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:05,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 10:27:05,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:05,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 10:27:05,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:05,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:27:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:05,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:05,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:05,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:05,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:05,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:05,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:05,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:05,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:05,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:05,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:05,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:05,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:27:05,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:05,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:05,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:05,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:05,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:05,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:27:05,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:05,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:05,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 10:27:05,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:05,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 10:27:05,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:05,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 10:27:05,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:05,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:06,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:06,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 10:27:06,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:06,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-14 10:27:06,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:06,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:06,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 10:27:06,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 10:27:06,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-14 10:27:06,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:06,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:06,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:06,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:06,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:06,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 10:27:06,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:06,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 10:27:06,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:06,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:06,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:06,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:06,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 10:27:06,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:06,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:06,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:06,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:06,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:06,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:06,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:06,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:06,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:06,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:06,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:06,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:06,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:06,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:27:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:06,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:06,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:06,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:06,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:06,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:06,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:06,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:06,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:06,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:06,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:06,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:06,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 10:27:06,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:06,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:06,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:06,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-14 10:27:06,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:06,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 10:27:06,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:06,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:06,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 10:27:06,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:06,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 10:27:06,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:06,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:06,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:06,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:06,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:06,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:06,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:06,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:06,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:06,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:06,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:06,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:06,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:27:06,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:06,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:27:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:06,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:06,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:06,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-14 10:27:06,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:06,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 10:27:06,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:06,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:06,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 10:27:06,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:06,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 10:27:06,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:06,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:06,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:06,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:06,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:06,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:06,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:06,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:06,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:06,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:06,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:06,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:27:06,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:06,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:27:06,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:06,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:06,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:06,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 10:27:06,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:06,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 10:27:06,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:06,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:06,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 10:27:06,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:06,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 10:27:06,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:07,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:07,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:07,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:07,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:07,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:07,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:07,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:27:07,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:07,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:07,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:07,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:07,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:27:07,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:07,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:27:07,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:07,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:07,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:07,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:07,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:07,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 10:27:07,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:07,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:07,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 10:27:07,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:07,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 10:27:07,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:07,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-14 10:27:07,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:07,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:07,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:07,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:07,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:07,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:07,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:07,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:07,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:07,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 10:27:07,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:07,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:07,378 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 141 proven. 70 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2020-10-14 10:27:07,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [687572669] [2020-10-14 10:27:07,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:27:07,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-14 10:27:07,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106787603] [2020-10-14 10:27:07,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-14 10:27:07,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:27:07,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-14 10:27:07,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=642, Unknown=0, NotChecked=0, Total=702 [2020-10-14 10:27:07,380 INFO L87 Difference]: Start difference. First operand 558 states and 1106 transitions. Second operand 27 states. [2020-10-14 10:27:08,840 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-14 10:27:11,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:27:11,023 INFO L93 Difference]: Finished difference Result 978 states and 2038 transitions. [2020-10-14 10:27:11,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-14 10:27:11,023 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 130 [2020-10-14 10:27:11,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:27:11,034 INFO L225 Difference]: With dead ends: 978 [2020-10-14 10:27:11,034 INFO L226 Difference]: Without dead ends: 835 [2020-10-14 10:27:11,037 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=266, Invalid=2086, Unknown=0, NotChecked=0, Total=2352 [2020-10-14 10:27:11,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2020-10-14 10:27:11,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 783. [2020-10-14 10:27:11,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 783 states. [2020-10-14 10:27:11,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1794 transitions. [2020-10-14 10:27:11,147 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1794 transitions. Word has length 130 [2020-10-14 10:27:11,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:27:11,147 INFO L479 AbstractCegarLoop]: Abstraction has 783 states and 1794 transitions. [2020-10-14 10:27:11,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-14 10:27:11,147 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1794 transitions. [2020-10-14 10:27:11,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-14 10:27:11,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:27:11,160 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:27:11,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 10:27:11,161 INFO L427 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:27:11,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:27:11,161 INFO L82 PathProgramCache]: Analyzing trace with hash 26496586, now seen corresponding path program 5 times [2020-10-14 10:27:11,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:27:11,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [947935727] [2020-10-14 10:27:11,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:27:11,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:11,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:11,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:11,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:11,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:11,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:13,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:16,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:16,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-14 10:27:16,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 10:27:16,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 10:27:16,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:16,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:16,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 10:27:16,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-14 10:27:16,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 10:27:16,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:16,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:27:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:16,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:16,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:16,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:16,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:16,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:16,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:16,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:16,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:16,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:16,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:16,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:16,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:27:16,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:16,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:16,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:16,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 10:27:16,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:16,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 10:27:16,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:16,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:16,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:16,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:16,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:16,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:16,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:27:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:16,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:16,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:16,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:27:16,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:16,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 10:27:16,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:16,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:16,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:16,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:16,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:16,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:16,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:27:16,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:16,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:16,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:16,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:16,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:16,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:16,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:16,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:16,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:16,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:16,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:16,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:16,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:27:16,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:16,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:16,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:16,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:16,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:16,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:16,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:16,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:16,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:16,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:16,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:16,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:16,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 10:27:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:16,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:16,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:16,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:27:16,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:16,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 10:27:16,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:16,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:16,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:16,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:16,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:16,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:16,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:27:16,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:16,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:16,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:16,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:16,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:16,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:16,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:16,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:16,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:16,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:16,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:16,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:16,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:27:16,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:16,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:16,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:16,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:16,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:16,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:16,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:16,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:16,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:16,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:16,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:16,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:16,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 10:27:16,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:16,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:16,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:16,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 10:27:16,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:16,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 10:27:16,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:16,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:16,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 10:27:16,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:16,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 10:27:16,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:16,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:16,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:16,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:16,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 10:27:16,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:16,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 10:27:16,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:16,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:16,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:16,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:16,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 10:27:16,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:16,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:16,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:16,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:16,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:16,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:16,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:16,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:16,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:16,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:16,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:16,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:16,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:16,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:16,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:27:16,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:16,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:16,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:16,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:16,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:16,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:16,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:16,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:16,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:16,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:16,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:16,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:16,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 10:27:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:16,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:16,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:16,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-14 10:27:16,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:16,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 10:27:16,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:16,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:16,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 10:27:16,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:16,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 10:27:16,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:16,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:16,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:16,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:16,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:16,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:16,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:16,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:27:16,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:16,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:16,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 10:27:16,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:16,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:27:16,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:16,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:27:16,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:16,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:16,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:16,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-14 10:27:16,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:16,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 10:27:16,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:16,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:16,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:16,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:16,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 10:27:16,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:16,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:16,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:16,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:16,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:16,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:16,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:16,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:16,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:16,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:16,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:16,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:16,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:16,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:27:16,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:16,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:16,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:16,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 10:27:16,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:16,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:27:16,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:16,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:16,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:16,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:16,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:16,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:16,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:16,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:16,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:16,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:16,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:16,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:16,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:16,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:16,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:16,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:16,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:16,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:16,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:16,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:27:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:16,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:16,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:16,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:16,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:16,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:16,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:16,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:16,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:16,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:16,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:16,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:16,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-14 10:27:16,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:16,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:16,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:16,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:16,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:16,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:16,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:16,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:16,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:16,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:16,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:27:16,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:16,945 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 60 proven. 52 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2020-10-14 10:27:16,945 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [947935727] [2020-10-14 10:27:16,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:27:16,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-14 10:27:16,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162537054] [2020-10-14 10:27:16,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-14 10:27:16,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:27:16,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-14 10:27:16,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=419, Unknown=0, NotChecked=0, Total=462 [2020-10-14 10:27:16,947 INFO L87 Difference]: Start difference. First operand 783 states and 1794 transitions. Second operand 22 states. [2020-10-14 10:27:19,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:27:19,274 INFO L93 Difference]: Finished difference Result 956 states and 2202 transitions. [2020-10-14 10:27:19,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-14 10:27:19,275 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 130 [2020-10-14 10:27:19,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:27:19,284 INFO L225 Difference]: With dead ends: 956 [2020-10-14 10:27:19,284 INFO L226 Difference]: Without dead ends: 950 [2020-10-14 10:27:19,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=270, Invalid=1800, Unknown=0, NotChecked=0, Total=2070 [2020-10-14 10:27:19,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2020-10-14 10:27:19,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 861. [2020-10-14 10:27:19,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2020-10-14 10:27:19,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 2065 transitions. [2020-10-14 10:27:19,473 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 2065 transitions. Word has length 130 [2020-10-14 10:27:19,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:27:19,473 INFO L479 AbstractCegarLoop]: Abstraction has 861 states and 2065 transitions. [2020-10-14 10:27:19,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-14 10:27:19,473 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 2065 transitions. [2020-10-14 10:27:19,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-14 10:27:19,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:27:19,489 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:27:19,489 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-14 10:27:19,489 INFO L427 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:27:19,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:27:19,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1394391565, now seen corresponding path program 6 times [2020-10-14 10:27:19,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:27:19,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1594311147] [2020-10-14 10:27:19,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:27:19,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:19,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:19,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:20,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:20,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:20,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:21,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:22,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:24,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:24,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:24,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-14 10:27:24,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 10:27:24,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5186 [2020-10-14 10:27:24,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:24,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:24,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 10:27:24,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-14 10:27:24,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-14 10:27:24,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:27:24,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:27:24,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:24,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:24,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:24,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:24,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:24,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:24,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:24,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:24,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:24,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:24,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:24,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:24,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:27:24,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:24,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:24,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:24,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 10:27:24,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:24,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 10:27:24,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:24,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:24,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:24,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:24,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:24,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:24,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:27:24,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:24,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:24,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:24,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:24,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:24,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:24,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:24,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:24,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:24,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:24,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:24,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:24,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:27:24,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:24,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:24,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:24,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 10:27:24,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:24,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 10:27:24,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:24,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:24,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:24,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:24,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:24,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:25,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:27:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:25,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:25,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:25,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:27:25,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:25,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 10:27:25,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:25,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:25,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:25,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:25,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:25,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:25,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:27:25,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:25,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:25,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:25,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:25,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:25,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:25,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:25,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:25,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:25,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:25,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:25,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:25,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:27:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:25,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:25,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:25,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:25,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:25,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:25,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:25,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:25,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:25,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:25,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:25,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:25,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 10:27:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:25,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:25,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:25,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:25,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:25,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:25,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:25,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:25,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:25,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:25,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:25,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:25,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 10:27:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:25,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:25,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:25,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:25,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:25,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:25,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-14 10:27:25,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 10:27:25,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 600 [2020-10-14 10:27:25,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:25,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:25,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 10:27:25,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:25,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 10:27:25,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:25,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:25,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:25,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:25,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:25,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 10:27:25,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:25,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 10:27:25,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:25,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:25,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:25,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:25,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 10:27:25,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:25,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:25,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:25,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:25,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:25,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:25,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:25,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:25,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:25,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:25,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:25,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:25,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:25,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:25,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:27:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:25,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:25,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:25,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:25,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:25,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:25,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:25,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:25,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:25,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:25,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:25,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:25,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 10:27:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:25,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:25,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:25,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-14 10:27:25,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:25,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 10:27:25,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:25,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:25,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 10:27:25,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:25,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 10:27:25,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:26,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:26,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:26,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:26,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:26,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 10:27:26,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:26,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 10:27:26,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:26,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:26,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 10:27:26,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:26,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 10:27:26,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:26,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:26,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:26,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:26,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:26,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:26,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:26,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:27:26,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:26,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:26,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 10:27:26,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:26,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 10:27:26,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:26,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:27:26,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:26,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:26,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:26,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:26,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:26,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:26,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:26,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:26,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:26,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:26,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:27:26,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:26,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 10:27:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:26,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:26,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:26,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:26,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:26,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:26,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:26,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:26,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:26,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:26,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:27:26,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:26,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 10:27:26,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:26,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:26,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:26,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:26,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:26,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:26,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:26,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:26,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:26,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:26,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:27:26,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:26,204 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 56 proven. 42 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2020-10-14 10:27:26,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1594311147] [2020-10-14 10:27:26,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:27:26,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-14 10:27:26,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283955390] [2020-10-14 10:27:26,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-14 10:27:26,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:27:26,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-14 10:27:26,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=597, Unknown=0, NotChecked=0, Total=650 [2020-10-14 10:27:26,206 INFO L87 Difference]: Start difference. First operand 861 states and 2065 transitions. Second operand 26 states. [2020-10-14 10:27:29,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:27:29,651 INFO L93 Difference]: Finished difference Result 1176 states and 2886 transitions. [2020-10-14 10:27:29,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-14 10:27:29,652 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 117 [2020-10-14 10:27:29,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:27:29,667 INFO L225 Difference]: With dead ends: 1176 [2020-10-14 10:27:29,667 INFO L226 Difference]: Without dead ends: 1170 [2020-10-14 10:27:29,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=352, Invalid=2510, Unknown=0, NotChecked=0, Total=2862 [2020-10-14 10:27:29,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2020-10-14 10:27:29,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 914. [2020-10-14 10:27:29,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 914 states. [2020-10-14 10:27:29,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 2266 transitions. [2020-10-14 10:27:29,868 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 2266 transitions. Word has length 117 [2020-10-14 10:27:29,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:27:29,868 INFO L479 AbstractCegarLoop]: Abstraction has 914 states and 2266 transitions. [2020-10-14 10:27:29,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-14 10:27:29,869 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 2266 transitions. [2020-10-14 10:27:29,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-14 10:27:29,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:27:29,884 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:27:29,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-14 10:27:29,885 INFO L427 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:27:29,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:27:29,885 INFO L82 PathProgramCache]: Analyzing trace with hash -427370873, now seen corresponding path program 7 times [2020-10-14 10:27:29,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:27:29,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [550950694] [2020-10-14 10:27:29,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:27:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:29,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:30,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:30,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:30,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:30,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:31,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:31,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:31,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:34,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:34,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 10:27:34,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 10:27:34,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 10:27:34,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:34,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:34,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 10:27:34,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 10:27:34,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-14 10:27:34,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:35,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:27:35,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:35,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:35,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:35,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:35,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:35,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:35,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:35,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:35,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:35,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:35,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:35,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:35,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:27:35,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:35,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:35,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:35,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:35,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 10:27:35,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 10:27:35,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-14 10:27:35,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:35,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:35,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 10:27:35,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:35,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 10:27:35,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:35,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:27:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:35,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:35,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:35,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:35,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:35,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:35,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:35,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:35,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:35,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:35,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:35,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:27:35,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:27:35,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:35,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:35,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:35,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 10:27:35,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:35,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 10:27:35,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:35,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:35,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 10:27:35,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:35,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-14 10:27:35,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:27:35,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:27:35,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:35,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:35,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:35,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:35,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:35,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:27:35,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:35,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:35,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:35,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:35,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 10:27:35,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:35,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:27:35,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:35,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:35,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:35,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:27:35,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:35,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 10:27:35,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:35,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:35,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 10:27:35,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:35,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 10:27:35,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:35,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:27:35,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:35,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:35,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:35,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:35,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:35,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:27:35,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:35,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:35,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:35,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:35,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 10:27:35,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:35,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:27:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:35,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:35,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:35,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:35,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:35,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:35,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:35,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:35,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:35,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:35,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 10:27:35,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:35,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 10:27:35,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:35,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:35,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:35,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-14 10:27:35,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:35,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 10:27:35,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:35,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:35,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 10:27:35,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 10:27:35,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 10:27:35,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:35,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:35,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:35,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:35,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 10:27:35,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:35,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 10:27:35,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:35,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:35,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:35,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:35,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 10:27:35,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:35,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:35,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:35,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:35,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:35,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:35,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:35,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:35,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:35,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:35,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:35,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:35,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:35,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:27:35,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:35,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:35,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:35,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:35,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:35,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:35,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:35,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:35,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:35,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:35,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:35,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:35,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 10:27:35,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:35,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:35,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:35,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 10:27:35,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:35,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 10:27:35,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:35,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:35,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 10:27:35,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:35,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 10:27:35,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:35,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:35,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:35,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:35,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 10:27:35,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:35,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 10:27:35,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:35,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:35,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:35,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:35,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 10:27:35,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:35,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:35,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:35,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:35,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:35,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:35,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:35,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:35,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:35,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:35,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:35,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:35,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:35,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:27:35,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:35,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:35,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:35,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:35,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:35,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:35,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:35,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:35,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:35,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:35,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:35,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:35,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 10:27:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:35,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:35,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:35,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:35,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:35,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:27:35,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:35,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:35,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 10:27:35,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:35,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 10:27:35,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:35,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-14 10:27:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:35,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:35,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:35,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:35,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:35,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:35,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:35,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:35,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:35,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 10:27:35,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:35,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:35,952 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 96 proven. 34 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2020-10-14 10:27:35,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [550950694] [2020-10-14 10:27:35,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:27:35,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 10:27:35,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245338820] [2020-10-14 10:27:35,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 10:27:35,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:27:35,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 10:27:35,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2020-10-14 10:27:35,954 INFO L87 Difference]: Start difference. First operand 914 states and 2266 transitions. Second operand 21 states. [2020-10-14 10:27:37,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:27:37,360 INFO L93 Difference]: Finished difference Result 1100 states and 2601 transitions. [2020-10-14 10:27:37,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 10:27:37,362 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 118 [2020-10-14 10:27:37,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:27:37,373 INFO L225 Difference]: With dead ends: 1100 [2020-10-14 10:27:37,373 INFO L226 Difference]: Without dead ends: 955 [2020-10-14 10:27:37,376 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=160, Invalid=1030, Unknown=0, NotChecked=0, Total=1190 [2020-10-14 10:27:37,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2020-10-14 10:27:37,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 917. [2020-10-14 10:27:37,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 917 states. [2020-10-14 10:27:37,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 2339 transitions. [2020-10-14 10:27:37,536 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 2339 transitions. Word has length 118 [2020-10-14 10:27:37,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:27:37,537 INFO L479 AbstractCegarLoop]: Abstraction has 917 states and 2339 transitions. [2020-10-14 10:27:37,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 10:27:37,537 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 2339 transitions. [2020-10-14 10:27:37,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-14 10:27:37,555 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:27:37,555 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:27:37,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-14 10:27:37,555 INFO L427 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:27:37,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:27:37,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1032034634, now seen corresponding path program 8 times [2020-10-14 10:27:37,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:27:37,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1585979194] [2020-10-14 10:27:37,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:27:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:37,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:38,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:39,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:39,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:42,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:42,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 10:27:42,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 10:27:42,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 10:27:42,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:42,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:42,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 10:27:42,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-14 10:27:42,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-14 10:27:42,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:42,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:27:42,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:42,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:42,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:42,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:42,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:42,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:42,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:42,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:42,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:42,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:42,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:42,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:42,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:27:42,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:42,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:42,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:42,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-14 10:27:42,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:42,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 10:27:42,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:42,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:42,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:42,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:42,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:42,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:42,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:27:42,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:42,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:42,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:42,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:27:42,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:42,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 10:27:42,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:42,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:42,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:42,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:42,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:42,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:42,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:27:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:42,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:42,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:42,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:42,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:42,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:42,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:42,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:42,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:42,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:42,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:42,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:42,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:27:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:42,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:42,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:42,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:42,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:42,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:42,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:42,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:42,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:42,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:42,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:42,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:42,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 10:27:42,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:42,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:42,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:42,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 10:27:42,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:42,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 10:27:42,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:42,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:42,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:42,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:42,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:42,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:42,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:27:42,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:42,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:42,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:42,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:27:42,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:42,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 10:27:42,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:42,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:42,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:42,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:42,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:42,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:42,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:27:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:42,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:42,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:42,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:42,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:42,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:42,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:42,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:42,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:42,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:42,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:42,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:42,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:27:42,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:42,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:42,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:42,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:42,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:42,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:42,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:42,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:42,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:42,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:42,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:42,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:42,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 10:27:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:42,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:42,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:42,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:42,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:42,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:42,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:42,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:42,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:42,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:42,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:42,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:42,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 10:27:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:42,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:43,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:43,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:43,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-14 10:27:43,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 10:27:43,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-14 10:27:43,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:43,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:43,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 10:27:43,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:43,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 10:27:43,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:43,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:43,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:43,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:43,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 10:27:43,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:43,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 10:27:43,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:43,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:43,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:43,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:43,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 10:27:43,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:43,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:43,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:43,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:43,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:43,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:43,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:43,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:43,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:43,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:43,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:43,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:43,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:43,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:27:43,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:43,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:43,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:43,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:43,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:43,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:43,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:43,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:43,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:43,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:43,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:43,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:43,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 10:27:43,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:43,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:43,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:43,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 10:27:43,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:43,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 10:27:43,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:43,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:43,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 10:27:43,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:43,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 10:27:43,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:43,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:43,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:43,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:43,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:43,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 10:27:43,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:43,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 10:27:43,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:43,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:43,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:43,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:43,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 10:27:43,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:43,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:43,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:43,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:43,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:43,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:43,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:43,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:43,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:43,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:43,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:43,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:43,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:43,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:27:43,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:43,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:43,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:43,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:43,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:43,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:43,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:43,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:43,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:43,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:43,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:43,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:43,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 10:27:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:43,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:43,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:43,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:43,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:43,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:43,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:43,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:43,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:43,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:43,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:27:43,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:43,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-14 10:27:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:43,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:43,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:43,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:43,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:43,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:43,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:43,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:43,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:43,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:43,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:27:43,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:43,554 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 49 proven. 26 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2020-10-14 10:27:43,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1585979194] [2020-10-14 10:27:43,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:27:43,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-14 10:27:43,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678801702] [2020-10-14 10:27:43,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-14 10:27:43,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:27:43,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-14 10:27:43,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=420, Unknown=0, NotChecked=0, Total=462 [2020-10-14 10:27:43,555 INFO L87 Difference]: Start difference. First operand 917 states and 2339 transitions. Second operand 22 states. [2020-10-14 10:27:45,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:27:45,862 INFO L93 Difference]: Finished difference Result 1074 states and 2524 transitions. [2020-10-14 10:27:45,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 10:27:45,862 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 128 [2020-10-14 10:27:45,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:27:45,870 INFO L225 Difference]: With dead ends: 1074 [2020-10-14 10:27:45,870 INFO L226 Difference]: Without dead ends: 1068 [2020-10-14 10:27:45,872 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=235, Invalid=1571, Unknown=0, NotChecked=0, Total=1806 [2020-10-14 10:27:45,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2020-10-14 10:27:45,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 755. [2020-10-14 10:27:45,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 755 states. [2020-10-14 10:27:46,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 1967 transitions. [2020-10-14 10:27:46,000 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 1967 transitions. Word has length 128 [2020-10-14 10:27:46,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:27:46,001 INFO L479 AbstractCegarLoop]: Abstraction has 755 states and 1967 transitions. [2020-10-14 10:27:46,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-14 10:27:46,001 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 1967 transitions. [2020-10-14 10:27:46,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-14 10:27:46,013 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:27:46,013 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:27:46,013 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-14 10:27:46,013 INFO L427 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:27:46,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:27:46,014 INFO L82 PathProgramCache]: Analyzing trace with hash 454017959, now seen corresponding path program 1 times [2020-10-14 10:27:46,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:27:46,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [967871097] [2020-10-14 10:27:46,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:27:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:46,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:46,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:48,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:48,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-14 10:27:48,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 10:27:48,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2528 [2020-10-14 10:27:48,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:48,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:48,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 10:27:48,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-14 10:27:48,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 10:27:48,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:48,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:27:48,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:48,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:48,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:48,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:48,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:48,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:48,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:48,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:48,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:48,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:48,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:48,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:48,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:27:48,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:48,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:48,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:48,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 10:27:48,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:48,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 10:27:48,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:48,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:48,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 10:27:48,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:48,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-14 10:27:48,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:48,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:27:48,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:48,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:48,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:48,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:27:48,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:48,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 10:27:48,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:48,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:48,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:48,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:48,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:48,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:48,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:27:48,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:48,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:48,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:48,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:48,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:48,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:48,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:48,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:48,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:48,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:48,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:48,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:48,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:27:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:48,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:48,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:48,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:48,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:48,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:48,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:48,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:48,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:48,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:48,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:48,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:48,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 10:27:48,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:48,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:48,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:48,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:48,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:48,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:27:48,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:48,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:48,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 10:27:48,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:48,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 10:27:48,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:48,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 10:27:48,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:48,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:48,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:48,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 10:27:48,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:48,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 10:27:48,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:48,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:48,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 10:27:48,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 10:27:48,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 10:27:48,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:48,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:48,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:48,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:48,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 10:27:48,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:48,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 10:27:48,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:48,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:48,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:48,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:48,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 10:27:48,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:48,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:48,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:48,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:48,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:48,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:48,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:48,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:48,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:48,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:48,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:48,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:48,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:48,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:27:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:48,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:48,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:48,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:48,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:48,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:48,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:48,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:48,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:48,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:48,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:48,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:48,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 10:27:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:48,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:48,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:48,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 10:27:48,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:48,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 10:27:48,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:48,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:48,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 10:27:48,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:48,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 10:27:48,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:49,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:49,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:49,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:49,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 10:27:49,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:49,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 10:27:49,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:49,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:49,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:49,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:49,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 10:27:49,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:49,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:49,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:49,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:49,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:49,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:49,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:49,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:49,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:49,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:49,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:49,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:49,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:49,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:49,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:27:49,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:49,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:49,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:49,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:49,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:49,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:49,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:49,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:49,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:49,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:49,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:49,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:49,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 10:27:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:49,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:49,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:49,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:49,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:49,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:49,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:49,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:49,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:49,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:49,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:27:49,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:49,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 10:27:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:49,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:49,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:49,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:49,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:49,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:49,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:49,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:49,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:49,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 10:27:49,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:49,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:49,056 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 63 proven. 25 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2020-10-14 10:27:49,056 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [967871097] [2020-10-14 10:27:49,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:27:49,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 10:27:49,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410775370] [2020-10-14 10:27:49,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 10:27:49,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:27:49,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 10:27:49,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-10-14 10:27:49,058 INFO L87 Difference]: Start difference. First operand 755 states and 1967 transitions. Second operand 14 states. [2020-10-14 10:27:50,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:27:50,072 INFO L93 Difference]: Finished difference Result 813 states and 2029 transitions. [2020-10-14 10:27:50,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 10:27:50,072 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 109 [2020-10-14 10:27:50,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:27:50,079 INFO L225 Difference]: With dead ends: 813 [2020-10-14 10:27:50,080 INFO L226 Difference]: Without dead ends: 761 [2020-10-14 10:27:50,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2020-10-14 10:27:50,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2020-10-14 10:27:50,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 755. [2020-10-14 10:27:50,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 755 states. [2020-10-14 10:27:50,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 1888 transitions. [2020-10-14 10:27:50,171 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 1888 transitions. Word has length 109 [2020-10-14 10:27:50,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:27:50,172 INFO L479 AbstractCegarLoop]: Abstraction has 755 states and 1888 transitions. [2020-10-14 10:27:50,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 10:27:50,172 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 1888 transitions. [2020-10-14 10:27:50,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-14 10:27:50,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:27:50,184 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:27:50,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-14 10:27:50,185 INFO L427 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:27:50,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:27:50,185 INFO L82 PathProgramCache]: Analyzing trace with hash 11873761, now seen corresponding path program 2 times [2020-10-14 10:27:50,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:27:50,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [414946643] [2020-10-14 10:27:50,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:27:50,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:50,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:51,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:51,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-14 10:27:51,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:51,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1366 [2020-10-14 10:27:51,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:51,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:51,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 10:27:51,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-14 10:27:51,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-14 10:27:51,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:51,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:27:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:51,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:51,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:51,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:51,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:51,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:51,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:51,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:51,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:51,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:51,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:51,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:27:51,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:27:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:51,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:51,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:51,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-14 10:27:51,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:51,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 10:27:51,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:51,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:51,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:51,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:51,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:51,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:51,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:27:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:51,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:51,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:51,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:27:51,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:51,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 10:27:51,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:51,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:51,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:51,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:51,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:51,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:51,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:27:51,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:51,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:51,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:51,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:51,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:51,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:51,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:51,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:51,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:51,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:51,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:51,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:51,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:27:51,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:51,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:51,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:51,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:51,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:51,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:51,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:51,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:51,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:51,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:51,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:51,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:51,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 10:27:51,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:51,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:51,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:51,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 10:27:51,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:51,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 10:27:51,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:51,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:51,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:51,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:51,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:51,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:51,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:27:51,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:51,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:51,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:51,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:27:51,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:51,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 10:27:51,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:51,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:51,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:51,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:51,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:51,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:51,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:27:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:51,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:51,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:51,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:51,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:51,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:51,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:51,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:51,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:51,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:51,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:51,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:51,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:27:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:51,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:51,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:51,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:51,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:51,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:51,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:51,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:51,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:51,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:51,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:51,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:51,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 10:27:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:51,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:51,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:51,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:51,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:51,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:51,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:51,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:51,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:51,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:51,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:51,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:51,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 10:27:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:51,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:51,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:51,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 10:27:51,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:51,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 10:27:51,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:51,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:51,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 10:27:51,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:51,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 10:27:51,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:52,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:52,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:52,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:52,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 10:27:52,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:52,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 10:27:52,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:52,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:52,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 10:27:52,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:52,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 10:27:52,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:52,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:52,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:52,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:52,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:52,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:52,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:52,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:52,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:52,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:52,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:52,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:27:52,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:52,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:27:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:52,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:52,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:52,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:52,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:52,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:52,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:52,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:52,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:52,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:52,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:27:52,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:52,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 10:27:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:52,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:52,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:52,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 10:27:52,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:52,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 10:27:52,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:52,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:52,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:52,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:52,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 10:27:52,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:52,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:52,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:52,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:52,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:52,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 10:27:52,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:52,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:27:52,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:52,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:52,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:52,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:52,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:52,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:52,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:27:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:52,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:52,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:52,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:52,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:52,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:52,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:52,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:52,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:52,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:52,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:52,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:52,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:27:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:52,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:52,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:52,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:52,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:52,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:52,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:52,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:52,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:52,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:52,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:52,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:52,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 10:27:52,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:52,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:52,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:52,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:52,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:52,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:27:52,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:52,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:52,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:52,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:52,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:52,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:52,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-14 10:27:52,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:52,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:52,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:52,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:27:52,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:52,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:52,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:52,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:52,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:27:52,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:52,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:27:52,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:27:52,307 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 25 proven. 52 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2020-10-14 10:27:52,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [414946643] [2020-10-14 10:27:52,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:27:52,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 10:27:52,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401406016] [2020-10-14 10:27:52,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 10:27:52,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:27:52,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 10:27:52,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-10-14 10:27:52,308 INFO L87 Difference]: Start difference. First operand 755 states and 1888 transitions. Second operand 21 states. [2020-10-14 10:27:54,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:27:54,391 INFO L93 Difference]: Finished difference Result 851 states and 2003 transitions. [2020-10-14 10:27:54,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 10:27:54,392 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 129 [2020-10-14 10:27:54,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:27:54,399 INFO L225 Difference]: With dead ends: 851 [2020-10-14 10:27:54,399 INFO L226 Difference]: Without dead ends: 849 [2020-10-14 10:27:54,401 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=208, Invalid=1432, Unknown=0, NotChecked=0, Total=1640 [2020-10-14 10:27:54,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2020-10-14 10:27:54,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 750. [2020-10-14 10:27:54,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 750 states. [2020-10-14 10:27:54,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1712 transitions. [2020-10-14 10:27:54,496 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1712 transitions. Word has length 129 [2020-10-14 10:27:54,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:27:54,497 INFO L479 AbstractCegarLoop]: Abstraction has 750 states and 1712 transitions. [2020-10-14 10:27:54,497 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 10:27:54,497 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1712 transitions. [2020-10-14 10:27:54,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-14 10:27:54,504 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:27:54,505 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:27:54,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-14 10:27:54,505 INFO L427 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:27:54,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:27:54,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1059531185, now seen corresponding path program 3 times [2020-10-14 10:27:54,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:27:54,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [577521776] [2020-10-14 10:27:54,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:27:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:54,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:54,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:54,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:55,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:55,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:59,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:59,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 10:27:59,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 10:27:59,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 10:27:59,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:59,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:59,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 10:27:59,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 10:27:59,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 10:27:59,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:27:59,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:27:59,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:27:59,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:27:59,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:27:59,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:27:59,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:27:59,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:27:59,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:27:59,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:27:59,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:27:59,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:27:59,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:27:59,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:28:00,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 10:28:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:28:00,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:28:00,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:28:00,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:28:00,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 10:28:00,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 10:28:00,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 444 [2020-10-14 10:28:00,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:28:00,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:28:00,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 10:28:00,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:28:00,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-14 10:28:00,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:28:00,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:28:00,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:28:00,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:28:00,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:28:00,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 10:28:00,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:28:00,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 10:28:00,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:28:00,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:28:00,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 10:28:00,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:28:00,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 10:28:00,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:28:01,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:28:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:28:01,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:28:01,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:28:01,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:28:01,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:28:01,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:28:01,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:28:01,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:28:01,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:28:01,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:28:01,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 10:28:01,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:28:01,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:28:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:28:01,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:28:01,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:28:01,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:28:01,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:28:01,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 10:28:01,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:28:01,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:28:01,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 10:28:01,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:28:01,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 10:28:01,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:28:01,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 10:28:01,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:28:01,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:28:01,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:28:01,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:28:01,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:28:01,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 10:28:01,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:28:01,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:28:01,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 10:28:01,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 10:28:01,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 10:28:01,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:28:01,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 10:28:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:28:01,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:28:01,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:28:01,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-14 10:28:01,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:28:01,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 10:28:01,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:28:01,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:28:01,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:28:01,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:28:01,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 10:28:01,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:28:01,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:28:01,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:28:01,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:28:01,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:28:01,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 10:28:01,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:28:01,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 10:28:01,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:28:01,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:28:01,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:28:01,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:28:01,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:28:01,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:28:01,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 10:28:01,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:28:01,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:28:01,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:28:01,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:28:01,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:28:01,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:28:01,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:28:01,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:28:01,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:28:01,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:28:01,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:28:01,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:28:01,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 10:28:01,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:28:01,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:28:01,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:28:01,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:28:01,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:28:01,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:28:01,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:28:01,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:28:01,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:28:01,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:28:01,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:28:01,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:28:01,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 10:28:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:28:01,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:28:01,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:28:01,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:28:01,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:28:01,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:28:01,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:28:01,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:28:01,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:28:01,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:28:01,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:28:01,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:28:01,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 10:28:01,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:28:01,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:28:01,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:28:01,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:28:01,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:28:01,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:28:01,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:28:01,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:28:01,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:28:01,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:28:01,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:28:01,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:28:01,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 10:28:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:28:01,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:28:01,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:28:01,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:28:01,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:28:01,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:28:01,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:28:01,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:28:01,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:28:01,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:28:01,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:28:01,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:28:01,255 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 18 proven. 20 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-14 10:28:01,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [577521776] [2020-10-14 10:28:01,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:28:01,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-14 10:28:01,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551280612] [2020-10-14 10:28:01,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-14 10:28:01,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:28:01,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-14 10:28:01,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=501, Unknown=0, NotChecked=0, Total=552 [2020-10-14 10:28:01,258 INFO L87 Difference]: Start difference. First operand 750 states and 1712 transitions. Second operand 24 states.