/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label21.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:53:40,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:53:40,732 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:53:40,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:53:40,759 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:53:40,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:53:40,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:53:40,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:53:40,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:53:40,767 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:53:40,768 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:53:40,769 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:53:40,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:53:40,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:53:40,772 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:53:40,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:53:40,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:53:40,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:53:40,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:53:40,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:53:40,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:53:40,785 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:53:40,786 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:53:40,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:53:40,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:53:40,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:53:40,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:53:40,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:53:40,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:53:40,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:53:40,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:53:40,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:53:40,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:53:40,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:53:40,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:53:40,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:53:40,804 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:53:40,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:53:40,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:53:40,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:53:40,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:53:40,811 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:53:40,872 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:53:40,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:53:40,874 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:53:40,874 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:53:40,875 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:53:40,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:53:40,876 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:53:40,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:53:40,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:53:40,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:53:40,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:53:40,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:53:40,877 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:53:40,877 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:53:40,877 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:53:40,878 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:53:40,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:53:40,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:53:40,879 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:53:40,880 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:53:40,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:53:40,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:53:40,880 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:53:40,880 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:53:40,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:53:40,881 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:53:40,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:53:40,881 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:53:40,882 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:53:40,882 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:53:41,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:53:41,412 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:53:41,417 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:53:41,419 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:53:41,419 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:53:41,421 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label21.c [2020-09-25 07:53:41,520 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4889bc6df/de927dc1040143eeae4cab36f863d71e/FLAG20ff6ffd7 [2020-09-25 07:53:42,188 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:53:42,189 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label21.c [2020-09-25 07:53:42,201 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4889bc6df/de927dc1040143eeae4cab36f863d71e/FLAG20ff6ffd7 [2020-09-25 07:53:42,391 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4889bc6df/de927dc1040143eeae4cab36f863d71e [2020-09-25 07:53:42,406 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:53:42,413 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:53:42,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:53:42,418 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:53:42,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:53:42,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:53:42" (1/1) ... [2020-09-25 07:53:42,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d72532b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:53:42, skipping insertion in model container [2020-09-25 07:53:42,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:53:42" (1/1) ... [2020-09-25 07:53:42,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:53:42,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:53:42,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:53:42,958 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:53:43,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:53:43,171 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:53:43,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:53:43 WrapperNode [2020-09-25 07:53:43,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:53:43,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:53:43,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:53:43,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:53:43,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:53:43" (1/1) ... [2020-09-25 07:53:43,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:53:43" (1/1) ... [2020-09-25 07:53:43,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:53:43" (1/1) ... [2020-09-25 07:53:43,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:53:43" (1/1) ... [2020-09-25 07:53:43,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:53:43" (1/1) ... [2020-09-25 07:53:43,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:53:43" (1/1) ... [2020-09-25 07:53:43,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:53:43" (1/1) ... [2020-09-25 07:53:43,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:53:43,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:53:43,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:53:43,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:53:43,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:53:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:53:43,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:53:43,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:53:43,381 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 07:53:43,381 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:53:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 07:53:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:53:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:53:43,383 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 07:53:43,383 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:53:43,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:53:43,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:53:44,740 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:53:44,741 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 07:53:44,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:53:44 BoogieIcfgContainer [2020-09-25 07:53:44,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:53:44,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:53:44,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:53:44,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:53:44,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:53:42" (1/3) ... [2020-09-25 07:53:44,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@590b40ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:53:44, skipping insertion in model container [2020-09-25 07:53:44,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:53:43" (2/3) ... [2020-09-25 07:53:44,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@590b40ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:53:44, skipping insertion in model container [2020-09-25 07:53:44,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:53:44" (3/3) ... [2020-09-25 07:53:44,760 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label21.c [2020-09-25 07:53:44,773 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:53:44,784 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:53:44,807 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:53:44,841 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:53:44,842 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:53:44,842 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:53:44,842 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:53:44,842 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:53:44,842 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:53:44,843 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:53:44,843 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:53:44,877 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states. [2020-09-25 07:53:44,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-09-25 07:53:44,897 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:53:44,898 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:53:44,899 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:53:44,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:53:44,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1196465745, now seen corresponding path program 1 times [2020-09-25 07:53:44,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:53:44,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [100677907] [2020-09-25 07:53:44,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:53:45,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:53:45,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:53:45,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:53:46,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:53:47,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:53:47,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:53:47,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:53:47,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:53:50,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:53:50,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 07:53:50,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:53:50,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 07:53:50,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:53:50,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:53:50,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:53:50,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 07:53:50,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-09-25 07:53:50,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:53:50,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:53:50,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:53:50,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:53:50,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:53:50,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:53:50,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:53:50,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 07:53:50,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:53:50,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:53:50,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:53:50,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:53:50,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 07:53:50,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:53:50,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:53:50,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [100677907] [2020-09-25 07:53:50,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:53:50,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:53:50,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745980246] [2020-09-25 07:53:50,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:53:50,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:53:50,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:53:50,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:53:50,501 INFO L87 Difference]: Start difference. First operand 527 states. Second operand 4 states. [2020-09-25 07:53:52,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:53:52,736 INFO L93 Difference]: Finished difference Result 1396 states and 1850 transitions. [2020-09-25 07:53:52,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:53:52,738 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 122 [2020-09-25 07:53:52,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:53:52,776 INFO L225 Difference]: With dead ends: 1396 [2020-09-25 07:53:52,776 INFO L226 Difference]: Without dead ends: 788 [2020-09-25 07:53:52,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:53:52,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2020-09-25 07:53:52,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 665. [2020-09-25 07:53:52,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 665 states. [2020-09-25 07:53:52,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 813 transitions. [2020-09-25 07:53:52,887 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 813 transitions. Word has length 122 [2020-09-25 07:53:52,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:53:52,888 INFO L479 AbstractCegarLoop]: Abstraction has 665 states and 813 transitions. [2020-09-25 07:53:52,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:53:52,888 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 813 transitions. [2020-09-25 07:53:52,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-09-25 07:53:52,898 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:53:52,899 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:53:52,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:53:52,899 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:53:52,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:53:52,900 INFO L82 PathProgramCache]: Analyzing trace with hash -54057051, now seen corresponding path program 1 times [2020-09-25 07:53:52,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:53:52,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [781406838] [2020-09-25 07:53:52,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:53:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:53:52,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:53:53,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:53:53,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:53:53,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:53:53,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:53:54,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:53:54,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:53:55,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:53:55,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:53:57,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:53:57,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:53:57,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:53:57,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 07:53:57,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 07:53:57,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 07:53:57,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:53:57,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:53:57,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:53:57,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-25 07:53:57,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-25 07:53:57,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:53:58,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:53:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:53:58,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:53:58,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:53:58,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:53:58,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:53:58,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 07:53:58,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:53:58,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:53:58,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:53:58,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:53:58,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:53:58,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:53:58,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 07:53:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:53:58,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:53:58,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:53:58,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:53:58,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:53:58,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:53:58,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:53:58,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:53:58,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:53:58,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:53:58,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:53:58,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:53:58,200 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:53:58,200 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [781406838] [2020-09-25 07:53:58,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:53:58,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 07:53:58,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974217644] [2020-09-25 07:53:58,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:53:58,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:53:58,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:53:58,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:53:58,204 INFO L87 Difference]: Start difference. First operand 665 states and 813 transitions. Second operand 5 states. [2020-09-25 07:53:59,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:53:59,839 INFO L93 Difference]: Finished difference Result 1623 states and 2079 transitions. [2020-09-25 07:53:59,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 07:53:59,844 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 140 [2020-09-25 07:53:59,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:53:59,853 INFO L225 Difference]: With dead ends: 1623 [2020-09-25 07:53:59,854 INFO L226 Difference]: Without dead ends: 980 [2020-09-25 07:53:59,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:53:59,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2020-09-25 07:53:59,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 816. [2020-09-25 07:53:59,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 816 states. [2020-09-25 07:53:59,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1043 transitions. [2020-09-25 07:53:59,910 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1043 transitions. Word has length 140 [2020-09-25 07:53:59,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:53:59,911 INFO L479 AbstractCegarLoop]: Abstraction has 816 states and 1043 transitions. [2020-09-25 07:53:59,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:53:59,911 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1043 transitions. [2020-09-25 07:53:59,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 07:53:59,917 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:53:59,918 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:53:59,918 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:53:59,919 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:53:59,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:53:59,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1331654230, now seen corresponding path program 1 times [2020-09-25 07:53:59,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:53:59,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1583149200] [2020-09-25 07:53:59,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:53:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:53:59,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:00,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:00,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:00,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:02,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:03,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:03,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-09-25 07:54:03,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:54:03,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3135 [2020-09-25 07:54:03,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:03,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:03,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:54:03,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 07:54:03,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-25 07:54:03,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:54:03,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:54:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:03,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:03,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:03,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:54:03,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:54:03,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:54:03,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:03,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:03,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:54:03,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:54:03,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:54:03,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:54:03,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 07:54:03,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:03,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:03,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:03,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 07:54:03,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:54:03,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 07:54:03,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:03,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:03,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:54:03,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:54:03,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 07:54:03,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:54:03,330 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:54:03,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1583149200] [2020-09-25 07:54:03,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:54:03,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 07:54:03,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923784922] [2020-09-25 07:54:03,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:54:03,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:54:03,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:54:03,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:54:03,334 INFO L87 Difference]: Start difference. First operand 816 states and 1043 transitions. Second operand 5 states. [2020-09-25 07:54:05,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:54:05,658 INFO L93 Difference]: Finished difference Result 2102 states and 2820 transitions. [2020-09-25 07:54:05,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 07:54:05,659 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 07:54:05,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:54:05,667 INFO L225 Difference]: With dead ends: 2102 [2020-09-25 07:54:05,668 INFO L226 Difference]: Without dead ends: 1308 [2020-09-25 07:54:05,672 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:54:05,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1308 states. [2020-09-25 07:54:05,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1308 to 1272. [2020-09-25 07:54:05,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1272 states. [2020-09-25 07:54:05,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1561 transitions. [2020-09-25 07:54:05,736 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1561 transitions. Word has length 148 [2020-09-25 07:54:05,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:54:05,739 INFO L479 AbstractCegarLoop]: Abstraction has 1272 states and 1561 transitions. [2020-09-25 07:54:05,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:54:05,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1561 transitions. [2020-09-25 07:54:05,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 07:54:05,750 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:54:05,750 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:54:05,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:54:05,753 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:54:05,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:54:05,755 INFO L82 PathProgramCache]: Analyzing trace with hash 931685273, now seen corresponding path program 1 times [2020-09-25 07:54:05,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:54:05,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934400252] [2020-09-25 07:54:05,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:54:05,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:05,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:05,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:05,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:08,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:08,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:09,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:09,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:10,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:10,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-09-25 07:54:10,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:54:10,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:54:10,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:10,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:10,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:54:10,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-25 07:54:10,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-25 07:54:10,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:54:10,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:54:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:10,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:10,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:10,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:54:10,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:54:10,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:54:10,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:10,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:10,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:54:10,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:54:10,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:54:10,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:54:10,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 07:54:10,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:10,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:11,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:11,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 07:54:11,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:54:11,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 07:54:11,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:11,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:11,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:54:11,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:54:11,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 07:54:11,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:54:11,065 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:54:11,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934400252] [2020-09-25 07:54:11,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:54:11,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 07:54:11,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287823819] [2020-09-25 07:54:11,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:54:11,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:54:11,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:54:11,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:54:11,068 INFO L87 Difference]: Start difference. First operand 1272 states and 1561 transitions. Second operand 5 states. [2020-09-25 07:54:13,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:54:13,054 INFO L93 Difference]: Finished difference Result 3300 states and 4205 transitions. [2020-09-25 07:54:13,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 07:54:13,057 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 160 [2020-09-25 07:54:13,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:54:13,070 INFO L225 Difference]: With dead ends: 3300 [2020-09-25 07:54:13,071 INFO L226 Difference]: Without dead ends: 1739 [2020-09-25 07:54:13,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:54:13,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2020-09-25 07:54:13,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1567. [2020-09-25 07:54:13,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1567 states. [2020-09-25 07:54:13,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 1909 transitions. [2020-09-25 07:54:13,137 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 1909 transitions. Word has length 160 [2020-09-25 07:54:13,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:54:13,138 INFO L479 AbstractCegarLoop]: Abstraction has 1567 states and 1909 transitions. [2020-09-25 07:54:13,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:54:13,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 1909 transitions. [2020-09-25 07:54:13,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-25 07:54:13,147 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:54:13,147 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:54:13,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:54:13,148 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:54:13,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:54:13,148 INFO L82 PathProgramCache]: Analyzing trace with hash -904785138, now seen corresponding path program 1 times [2020-09-25 07:54:13,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:54:13,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1835572667] [2020-09-25 07:54:13,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:54:13,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:13,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:13,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:13,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:13,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:14,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:15,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:16,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:18,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:18,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-09-25 07:54:18,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:54:18,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:54:18,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:18,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:18,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:54:18,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-09-25 07:54:18,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-09-25 07:54:18,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:54:18,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:54:18,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:18,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:18,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:18,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:54:18,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:54:18,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:54:18,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:18,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:18,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:54:18,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:54:18,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:54:18,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:54:18,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 07:54:18,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:18,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:18,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:18,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:54:18,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:54:18,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 07:54:18,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:18,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:18,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:54:18,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:54:18,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:54:18,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:54:18,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 07:54:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:18,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:18,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:18,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:18,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 07:54:18,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:54:18,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 07:54:18,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:18,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:18,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:54:18,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:54:18,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 07:54:18,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:54:18,533 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 16 proven. 39 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 07:54:18,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1835572667] [2020-09-25 07:54:18,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:54:18,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 07:54:18,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226705789] [2020-09-25 07:54:18,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:54:18,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:54:18,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:54:18,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:54:18,536 INFO L87 Difference]: Start difference. First operand 1567 states and 1909 transitions. Second operand 6 states. [2020-09-25 07:54:20,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:54:20,912 INFO L93 Difference]: Finished difference Result 3913 states and 5087 transitions. [2020-09-25 07:54:20,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 07:54:20,913 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 191 [2020-09-25 07:54:20,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:54:20,928 INFO L225 Difference]: With dead ends: 3913 [2020-09-25 07:54:20,928 INFO L226 Difference]: Without dead ends: 2368 [2020-09-25 07:54:20,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:54:20,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2020-09-25 07:54:21,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 2061. [2020-09-25 07:54:21,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2061 states. [2020-09-25 07:54:21,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2061 states to 2061 states and 2512 transitions. [2020-09-25 07:54:21,010 INFO L78 Accepts]: Start accepts. Automaton has 2061 states and 2512 transitions. Word has length 191 [2020-09-25 07:54:21,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:54:21,011 INFO L479 AbstractCegarLoop]: Abstraction has 2061 states and 2512 transitions. [2020-09-25 07:54:21,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:54:21,011 INFO L276 IsEmpty]: Start isEmpty. Operand 2061 states and 2512 transitions. [2020-09-25 07:54:21,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-25 07:54:21,020 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:54:21,020 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:54:21,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:54:21,021 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:54:21,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:54:21,021 INFO L82 PathProgramCache]: Analyzing trace with hash -68871987, now seen corresponding path program 1 times [2020-09-25 07:54:21,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:54:21,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [408056494] [2020-09-25 07:54:21,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:54:21,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:21,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:21,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:21,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:21,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:21,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:21,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:23,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:25,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:26,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:26,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 07:54:26,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 07:54:26,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 07:54:26,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:26,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:26,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:54:26,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-09-25 07:54:26,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-25 07:54:26,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:54:26,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:54:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:26,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:26,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:26,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:54:26,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:54:26,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:54:26,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:26,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:26,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:54:26,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:54:26,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:54:26,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:54:26,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 07:54:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:26,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:26,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:26,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:54:26,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:54:26,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:54:26,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:26,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:26,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:54:26,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:54:26,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:54:26,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:54:26,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-25 07:54:26,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:26,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:26,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:26,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 07:54:26,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:54:26,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 07:54:26,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:26,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:26,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:54:26,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:54:26,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 07:54:26,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:54:26,259 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 07:54:26,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [408056494] [2020-09-25 07:54:26,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:54:26,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 07:54:26,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700616366] [2020-09-25 07:54:26,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:54:26,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:54:26,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:54:26,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:54:26,261 INFO L87 Difference]: Start difference. First operand 2061 states and 2512 transitions. Second operand 5 states. [2020-09-25 07:54:28,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:54:28,195 INFO L93 Difference]: Finished difference Result 5130 states and 6409 transitions. [2020-09-25 07:54:28,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 07:54:28,197 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 192 [2020-09-25 07:54:28,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:54:28,214 INFO L225 Difference]: With dead ends: 5130 [2020-09-25 07:54:28,214 INFO L226 Difference]: Without dead ends: 3090 [2020-09-25 07:54:28,222 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:54:28,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3090 states. [2020-09-25 07:54:28,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3090 to 2663. [2020-09-25 07:54:28,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2663 states. [2020-09-25 07:54:28,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2663 states to 2663 states and 3281 transitions. [2020-09-25 07:54:28,322 INFO L78 Accepts]: Start accepts. Automaton has 2663 states and 3281 transitions. Word has length 192 [2020-09-25 07:54:28,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:54:28,323 INFO L479 AbstractCegarLoop]: Abstraction has 2663 states and 3281 transitions. [2020-09-25 07:54:28,323 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:54:28,323 INFO L276 IsEmpty]: Start isEmpty. Operand 2663 states and 3281 transitions. [2020-09-25 07:54:28,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-25 07:54:28,335 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:54:28,335 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:54:28,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:54:28,336 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:54:28,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:54:28,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1038430652, now seen corresponding path program 1 times [2020-09-25 07:54:28,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:54:28,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [529975161] [2020-09-25 07:54:28,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:54:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:28,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:28,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:28,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:28,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:29,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:31,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:31,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:32,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:33,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:33,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-09-25 07:54:33,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 07:54:33,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:54:33,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:33,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:33,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:54:33,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-25 07:54:33,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:54:33,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:54:33,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:54:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:33,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:54:33,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:54:33,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:54:33,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:54:33,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:54:33,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:54:33,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:54:33,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:54:33,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:54:33,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:54:33,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:54:33,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 07:54:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:54:33,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking...