/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_25-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:45:01,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:45:01,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:45:01,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:45:01,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:45:01,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:45:01,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:45:01,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:45:01,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:45:01,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:45:01,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:45:01,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:45:01,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:45:01,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:45:01,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:45:01,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:45:01,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:45:01,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:45:01,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:45:01,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:45:01,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:45:01,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:45:01,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:45:01,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:45:01,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:45:01,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:45:01,180 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:45:01,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:45:01,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:45:01,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:45:01,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:45:01,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:45:01,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:45:01,188 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:45:01,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:45:01,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:45:01,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:45:01,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:45:01,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:45:01,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:45:01,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:45:01,195 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:45:01,240 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:45:01,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:45:01,242 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:45:01,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:45:01,243 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:45:01,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:45:01,244 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:45:01,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:45:01,244 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:45:01,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:45:01,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:45:01,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:45:01,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:45:01,246 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:45:01,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:45:01,247 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:45:01,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:45:01,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:45:01,247 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:45:01,248 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:45:01,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:45:01,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:45:01,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:45:01,248 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:45:01,249 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:45:01,249 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:45:01,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:45:01,249 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:45:01,249 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:45:01,250 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:45:01,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:45:01,730 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:45:01,735 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:45:01,737 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:45:01,737 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:45:01,739 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_25-2.c [2020-09-25 07:45:01,824 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42543d654/f727b0324f394474b066aee246efbbbd/FLAG11191cea7 [2020-09-25 07:45:02,360 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:45:02,361 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_25-2.c [2020-09-25 07:45:02,369 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42543d654/f727b0324f394474b066aee246efbbbd/FLAG11191cea7 [2020-09-25 07:45:02,731 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42543d654/f727b0324f394474b066aee246efbbbd [2020-09-25 07:45:02,745 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:45:02,751 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:45:02,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:45:02,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:45:02,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:45:02,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:45:02" (1/1) ... [2020-09-25 07:45:02,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bdaa1ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:02, skipping insertion in model container [2020-09-25 07:45:02,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:45:02" (1/1) ... [2020-09-25 07:45:02,778 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:45:02,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:45:03,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:45:03,025 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:45:03,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:45:03,061 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:45:03,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:03 WrapperNode [2020-09-25 07:45:03,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:45:03,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:45:03,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:45:03,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:45:03,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:03" (1/1) ... [2020-09-25 07:45:03,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:03" (1/1) ... [2020-09-25 07:45:03,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:03" (1/1) ... [2020-09-25 07:45:03,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:03" (1/1) ... [2020-09-25 07:45:03,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:03" (1/1) ... [2020-09-25 07:45:03,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:03" (1/1) ... [2020-09-25 07:45:03,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:03" (1/1) ... [2020-09-25 07:45:03,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:45:03,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:45:03,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:45:03,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:45:03,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:03" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:45:03,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:45:03,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:45:03,266 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-25 07:45:03,266 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-25 07:45:03,266 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:45:03,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:45:03,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:45:03,267 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-25 07:45:03,267 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-25 07:45:03,267 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:45:03,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:45:03,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:45:03,503 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:45:03,503 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 07:45:03,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:45:03 BoogieIcfgContainer [2020-09-25 07:45:03,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:45:03,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:45:03,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:45:03,518 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:45:03,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:45:02" (1/3) ... [2020-09-25 07:45:03,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315056e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:45:03, skipping insertion in model container [2020-09-25 07:45:03,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:03" (2/3) ... [2020-09-25 07:45:03,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315056e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:45:03, skipping insertion in model container [2020-09-25 07:45:03,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:45:03" (3/3) ... [2020-09-25 07:45:03,523 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_25-2.c [2020-09-25 07:45:03,535 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:45:03,546 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:45:03,606 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:45:03,654 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:45:03,655 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:45:03,658 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:45:03,658 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:45:03,659 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:45:03,659 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:45:03,659 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:45:03,659 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:45:03,685 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-25 07:45:03,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 07:45:03,693 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:03,694 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:03,694 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:03,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:03,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-25 07:45:03,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:03,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [334840864] [2020-09-25 07:45:03,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:03,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:03,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:03,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:45:03,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:03,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 07:45:03,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:03,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:03,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:03,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:03,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:45:03,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:45:03,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:03,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:03,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:03,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:03,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:03,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:03,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:45:03,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:03,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:03,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:03,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:03,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:03,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:03,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:03,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:03,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:03,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:03,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:03,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:03,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 07:45:03,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:03,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:03,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:03,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:03,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:03,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:04,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:45:04,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [334840864] [2020-09-25 07:45:04,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:45:04,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:45:04,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303666470] [2020-09-25 07:45:04,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:45:04,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:04,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:45:04,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:45:04,067 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-25 07:45:04,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:04,227 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-25 07:45:04,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:45:04,230 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 07:45:04,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:04,253 INFO L225 Difference]: With dead ends: 58 [2020-09-25 07:45:04,254 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 07:45:04,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:45:04,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 07:45:04,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 07:45:04,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 07:45:04,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 07:45:04,315 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-25 07:45:04,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:04,316 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 07:45:04,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:45:04,316 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 07:45:04,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 07:45:04,319 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:04,319 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:04,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:45:04,320 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:04,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:04,320 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-25 07:45:04,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:04,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1202362452] [2020-09-25 07:45:04,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:04,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:04,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 07:45:04,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:04,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 07:45:04,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:04,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:04,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:04,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:04,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:04,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:04,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:04,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:04,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:04,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:04,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:04,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:45:04,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:04,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:04,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:04,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:04,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:04,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:04,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:04,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:04,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:04,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:04,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:04,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 07:45:04,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:04,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:04,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:04,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:04,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:04,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:04,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:45:04,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1202362452] [2020-09-25 07:45:04,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:45:04,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:45:04,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819076114] [2020-09-25 07:45:04,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:45:04,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:04,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:45:04,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:45:04,528 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-25 07:45:04,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:04,602 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-25 07:45:04,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:45:04,603 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 07:45:04,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:04,605 INFO L225 Difference]: With dead ends: 50 [2020-09-25 07:45:04,605 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 07:45:04,606 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:45:04,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 07:45:04,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 07:45:04,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 07:45:04,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 07:45:04,617 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-25 07:45:04,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:04,617 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 07:45:04,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:45:04,617 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 07:45:04,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 07:45:04,619 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:04,620 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:04,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:45:04,620 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:04,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:04,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-25 07:45:04,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:04,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1360236164] [2020-09-25 07:45:04,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:04,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:05,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:05,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 07:45:05,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:45:05,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 601 [2020-09-25 07:45:05,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:05,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:05,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:05,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:05,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:45:05,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:45:05,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:05,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:05,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:05,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:05,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:05,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:45:05,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:05,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:05,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:05,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:05,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:05,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:05,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:05,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:05,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:05,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:05,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:05,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:05,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:45:05,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:45:05,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-25 07:45:05,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:05,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:05,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:05,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:05,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 07:45:05,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:05,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:05,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:05,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:05,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:05,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:05,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:45:05,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:05,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:05,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:05,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:05,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:05,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:05,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:05,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:05,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:05,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:05,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:05,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:45:05,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:05,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:05,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:05,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:05,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:05,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:05,585 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 07:45:05,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1360236164] [2020-09-25 07:45:05,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:45:05,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:45:05,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818628327] [2020-09-25 07:45:05,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:45:05,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:05,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:45:05,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:45:05,588 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-09-25 07:45:05,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:05,717 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2020-09-25 07:45:05,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:45:05,718 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-25 07:45:05,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:05,720 INFO L225 Difference]: With dead ends: 58 [2020-09-25 07:45:05,720 INFO L226 Difference]: Without dead ends: 52 [2020-09-25 07:45:05,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:45:05,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-25 07:45:05,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2020-09-25 07:45:05,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 07:45:05,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-09-25 07:45:05,733 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 33 [2020-09-25 07:45:05,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:05,734 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-09-25 07:45:05,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:45:05,734 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-09-25 07:45:05,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 07:45:05,736 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:05,736 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:05,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:45:05,737 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:05,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:05,737 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-25 07:45:05,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:05,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [406273764] [2020-09-25 07:45:05,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:05,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:05,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:05,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:06,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:06,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:06,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 07:45:06,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:45:06,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 525 [2020-09-25 07:45:06,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:06,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:06,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:06,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:06,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:45:06,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:06,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:06,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:06,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:06,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:06,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:06,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:06,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:06,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:06,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:06,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:06,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:06,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:06,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:06,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:06,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:06,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:06,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:06,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:06,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 07:45:06,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:45:06,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 441 [2020-09-25 07:45:06,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:06,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:06,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:06,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:06,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 07:45:06,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:06,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:06,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:06,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:06,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:06,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:06,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:06,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 07:45:06,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:06,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:06,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:06,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:06,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:45:06,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:06,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:45:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:06,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:06,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:06,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:06,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:06,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:45:06,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:06,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:06,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:06,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:06,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:06,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:06,865 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 07:45:06,867 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [406273764] [2020-09-25 07:45:06,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:06,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 07:45:06,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654180700] [2020-09-25 07:45:06,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:45:06,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:06,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:45:06,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:45:06,870 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 7 states. [2020-09-25 07:45:07,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:07,050 INFO L93 Difference]: Finished difference Result 110 states and 146 transitions. [2020-09-25 07:45:07,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:45:07,052 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 07:45:07,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:07,054 INFO L225 Difference]: With dead ends: 110 [2020-09-25 07:45:07,055 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 07:45:07,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:45:07,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 07:45:07,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-09-25 07:45:07,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 07:45:07,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2020-09-25 07:45:07,081 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 35 [2020-09-25 07:45:07,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:07,086 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2020-09-25 07:45:07,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:45:07,086 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2020-09-25 07:45:07,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 07:45:07,091 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:07,094 INFO L422 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:07,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:45:07,095 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:07,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:07,096 INFO L82 PathProgramCache]: Analyzing trace with hash 758565477, now seen corresponding path program 1 times [2020-09-25 07:45:07,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:07,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [281901717] [2020-09-25 07:45:07,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:07,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:07,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:07,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:07,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:07,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:07,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:07,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:12,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:12,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 07:45:12,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:45:12,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:45:12,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:12,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:12,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:12,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:12,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 07:45:12,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:12,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:12,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:12,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:12,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:12,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:12,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:45:12,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:12,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:12,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:12,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:12,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:12,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:12,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:12,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:12,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:12,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:12,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:13,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:13,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:13,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:16,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:16,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 07:45:16,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:45:16,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4209 [2020-09-25 07:45:16,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:16,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:16,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:16,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:16,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 07:45:16,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:16,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:16,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:16,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:16,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:16,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:16,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:45:16,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:45:16,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-09-25 07:45:16,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:16,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:16,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:45:16,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:16,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:45:16,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:16,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:16,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:16,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:16,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:16,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:16,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:16,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:45:16,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:16,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:16,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:16,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:16,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:16,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:16,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:16,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:16,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:16,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:16,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:16,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:45:16,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:16,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:16,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:16,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:16,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:16,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:16,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 07:45:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:16,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:16,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:16,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:16,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:16,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:45:16,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:16,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:16,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:16,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:16,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:16,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:45:16,764 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 07:45:16,765 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [281901717] [2020-09-25 07:45:16,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:16,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 07:45:16,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159002145] [2020-09-25 07:45:16,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:45:16,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:16,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:45:16,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:45:16,767 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand 9 states. [2020-09-25 07:45:17,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:17,015 INFO L93 Difference]: Finished difference Result 78 states and 105 transitions. [2020-09-25 07:45:17,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 07:45:17,015 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-09-25 07:45:17,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:17,021 INFO L225 Difference]: With dead ends: 78 [2020-09-25 07:45:17,022 INFO L226 Difference]: Without dead ends: 72 [2020-09-25 07:45:17,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:45:17,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-25 07:45:17,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 62. [2020-09-25 07:45:17,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-25 07:45:17,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 80 transitions. [2020-09-25 07:45:17,052 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 80 transitions. Word has length 51 [2020-09-25 07:45:17,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:17,054 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 80 transitions. [2020-09-25 07:45:17,054 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:45:17,055 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 80 transitions. [2020-09-25 07:45:17,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 07:45:17,062 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:17,062 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:17,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:45:17,063 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:17,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:17,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1208671938, now seen corresponding path program 1 times [2020-09-25 07:45:17,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:17,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1216545621] [2020-09-25 07:45:17,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:17,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:17,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:17,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:17,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:17,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:17,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:17,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:18,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:19,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:19,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:19,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:19,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:20,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:20,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:20,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:22,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:22,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 07:45:22,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 07:45:22,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 07:45:22,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:22,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:22,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:22,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:22,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 07:45:22,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:22,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:22,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:22,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:22,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:22,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:22,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:22,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:22,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:22,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:22,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:22,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:22,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:22,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:22,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:22,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:22,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:22,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:22,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:22,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:22,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:22,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:22,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:23,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:26,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:26,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:27,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 07:45:27,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 07:45:27,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 07:45:27,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:27,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:27,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:45:27,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 07:45:27,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 07:45:27,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:27,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:27,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:27,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:27,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 07:45:27,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:45:27,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-09-25 07:45:27,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:27,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:27,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:27,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:27,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 07:45:27,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:27,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:27,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:27,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:27,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:27,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:45:27,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:27,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:27,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:27,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:27,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:27,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:27,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:45:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:27,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:27,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:27,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:27,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 07:45:27,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:27,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:27,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:27,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:27,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:45:27,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:27,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 07:45:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:27,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:27,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 07:45:27,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:45:27,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-09-25 07:45:27,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:27,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:27,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:27,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:27,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 07:45:27,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:27,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:27,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:27,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:27,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:27,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:45:27,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:27,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:27,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:27,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:27,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:27,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:27,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:45:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:27,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:27,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:27,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:45:27,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 07:45:27,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:27,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:27,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:27,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:27,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:45:27,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:27,746 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 32 proven. 11 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-09-25 07:45:27,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1216545621] [2020-09-25 07:45:27,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:27,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 07:45:27,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145177928] [2020-09-25 07:45:27,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:45:27,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:27,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:45:27,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:45:27,749 INFO L87 Difference]: Start difference. First operand 62 states and 80 transitions. Second operand 10 states. [2020-09-25 07:45:27,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:27,989 INFO L93 Difference]: Finished difference Result 168 states and 275 transitions. [2020-09-25 07:45:27,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 07:45:27,989 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-09-25 07:45:27,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:27,992 INFO L225 Difference]: With dead ends: 168 [2020-09-25 07:45:27,993 INFO L226 Difference]: Without dead ends: 112 [2020-09-25 07:45:27,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2020-09-25 07:45:27,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-09-25 07:45:28,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 98. [2020-09-25 07:45:28,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-25 07:45:28,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 142 transitions. [2020-09-25 07:45:28,019 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 142 transitions. Word has length 71 [2020-09-25 07:45:28,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:28,020 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 142 transitions. [2020-09-25 07:45:28,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:45:28,021 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 142 transitions. [2020-09-25 07:45:28,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-25 07:45:28,025 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:28,026 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:28,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:45:28,028 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:28,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:28,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1053318756, now seen corresponding path program 1 times [2020-09-25 07:45:28,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:28,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1964555594] [2020-09-25 07:45:28,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:28,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:28,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:28,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:28,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:28,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:28,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:28,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:28,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:28,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:28,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:28,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:31,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:31,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:31,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:32,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:32,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:32,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:33,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:33,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-25 07:45:33,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-09-25 07:45:33,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 07:45:33,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:33,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:33,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:33,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 07:45:33,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 07:45:33,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:33,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:33,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:33,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:33,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:33,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:33,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:33,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:33,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:33,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:33,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:33,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:33,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:33,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:33,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:33,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:33,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:33,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:33,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:33,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:33,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:33,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:33,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:34,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:34,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:36,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:36,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:36,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:38,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-25 07:45:38,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-09-25 07:45:38,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 07:45:38,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:38,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:38,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:38,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-25 07:45:38,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 07:45:38,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:38,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:38,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:38,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:39,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:40,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:40,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:40,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:40,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:43,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 07:45:43,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-09-25 07:45:43,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 07:45:43,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:43,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:43,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:43,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-09-25 07:45:43,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 07:45:43,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:43,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:43,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:43,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:43,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:45:43,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:45:43,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 07:45:43,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:43,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:43,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:43,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:43,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:43,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:43,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:43,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:43,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:43,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:43,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:43,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:45:43,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:43,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:43,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:43,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:43,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:43,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:43,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:43,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:43,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:43,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:43,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:45:43,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:43,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:43,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:43,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:43,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:43,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:43,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 07:45:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:43,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:45,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:45,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 07:45:45,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 07:45:45,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2335 [2020-09-25 07:45:45,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:45,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:45,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:45,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 07:45:45,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 07:45:45,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:45,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:45,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:45,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:45,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:45,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:45,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:45,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:45,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:45,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:45,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:46,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 07:45:46,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 07:45:46,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 453 [2020-09-25 07:45:46,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:46,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:46,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:46,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:46,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 07:45:46,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:46,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:46,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:46,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:46,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:46,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:45:46,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:46,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:46,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:46,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:46,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:46,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:46,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:46,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:46,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:46,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:46,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:45:46,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 07:45:46,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:46,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:46,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:46,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:46,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:45:46,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:46,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 07:45:46,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:46,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:46,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:46,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:46,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:45:46,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:46,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:46,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:46,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:46,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:46,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:46,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-25 07:45:46,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:46,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:46,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 07:45:46,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:45:46,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 07:45:46,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:46,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:46,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:46,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-25 07:45:46,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:46,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:46,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:46,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:46,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:46,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:46,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:46,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:45:46,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:46,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:46,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:46,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:46,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:46,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:46,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:45:46,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:46,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:46,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:46,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:46,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:45:46,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:46,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:46,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:46,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:46,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:46,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:46,327 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 76 proven. 40 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-09-25 07:45:46,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1964555594] [2020-09-25 07:45:46,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:46,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 07:45:46,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668992865] [2020-09-25 07:45:46,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 07:45:46,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:46,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 07:45:46,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:45:46,330 INFO L87 Difference]: Start difference. First operand 98 states and 142 transitions. Second operand 11 states. [2020-09-25 07:45:46,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:46,659 INFO L93 Difference]: Finished difference Result 216 states and 371 transitions. [2020-09-25 07:45:46,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 07:45:46,659 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 121 [2020-09-25 07:45:46,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:46,662 INFO L225 Difference]: With dead ends: 216 [2020-09-25 07:45:46,662 INFO L226 Difference]: Without dead ends: 124 [2020-09-25 07:45:46,665 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2020-09-25 07:45:46,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-09-25 07:45:46,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 118. [2020-09-25 07:45:46,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-09-25 07:45:46,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 182 transitions. [2020-09-25 07:45:46,699 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 182 transitions. Word has length 121 [2020-09-25 07:45:46,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:46,699 INFO L479 AbstractCegarLoop]: Abstraction has 118 states and 182 transitions. [2020-09-25 07:45:46,700 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 07:45:46,700 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 182 transitions. [2020-09-25 07:45:46,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-25 07:45:46,702 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:46,702 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:46,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 07:45:46,703 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:46,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:46,703 INFO L82 PathProgramCache]: Analyzing trace with hash -110022438, now seen corresponding path program 1 times [2020-09-25 07:45:46,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:46,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1355629327] [2020-09-25 07:45:46,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:46,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:49,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:49,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:49,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:51,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:51,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-25 07:45:51,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-09-25 07:45:51,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 07:45:51,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:51,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:51,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:45:51,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 07:45:51,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 07:45:51,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:51,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:51,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:51,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:51,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:51,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:51,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:51,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:51,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:51,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:51,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:51,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:51,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:51,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:51,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:51,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:51,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:51,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:51,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:51,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:55,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:55,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:55,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:55,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:55,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:55,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:56,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 07:45:56,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-09-25 07:45:56,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 07:45:56,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:56,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:56,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:45:56,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 07:45:56,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-25 07:45:56,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:56,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:56,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:57,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:57,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:57,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:57,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:57,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:57,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking...