/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --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_10-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:22:10,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:22:10,193 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:22:10,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:22:10,231 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:22:10,239 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:22:10,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:22:10,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:22:10,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:22:10,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:22:10,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:22:10,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:22:10,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:22:10,255 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:22:10,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:22:10,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:22:10,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:22:10,264 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:22:10,266 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:22:10,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:22:10,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:22:10,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:22:10,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:22:10,283 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:22:10,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:22:10,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:22:10,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:22:10,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:22:10,299 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:22:10,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:22:10,304 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:22:10,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:22:10,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:22:10,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:22:10,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:22:10,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:22:10,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:22:10,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:22:10,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:22:10,313 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:22:10,314 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:22:10,315 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 13:22:10,361 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:22:10,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:22:10,363 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:22:10,363 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:22:10,364 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:22:10,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:22:10,364 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:22:10,364 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:22:10,365 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:22:10,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:22:10,366 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:22:10,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:22:10,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:22:10,367 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:22:10,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:22:10,367 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:22:10,367 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:22:10,368 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:22:10,368 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:22:10,368 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:22:10,368 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:22:10,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:22:10,369 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:22:10,369 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:22:10,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:22:10,370 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:22:10,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:22:10,370 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:22:10,370 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:22:10,370 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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:22:10,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:22:10,860 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:22:10,865 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:22:10,867 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:22:10,868 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:22:10,869 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_10-2.c [2020-09-25 13:22:10,948 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63adbb50d/d498ab72147c4edd93ec4d856a9bf39b/FLAGa00d2d144 [2020-09-25 13:22:11,527 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:22:11,528 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_10-2.c [2020-09-25 13:22:11,537 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63adbb50d/d498ab72147c4edd93ec4d856a9bf39b/FLAGa00d2d144 [2020-09-25 13:22:11,873 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63adbb50d/d498ab72147c4edd93ec4d856a9bf39b [2020-09-25 13:22:11,886 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:22:11,891 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:22:11,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:22:11,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:22:11,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:22:11,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:22:11" (1/1) ... [2020-09-25 13:22:11,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47211fe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:11, skipping insertion in model container [2020-09-25 13:22:11,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:22:11" (1/1) ... [2020-09-25 13:22:11,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:22:11,937 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:22:12,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:22:12,143 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:22:12,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:22:12,181 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:22:12,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:12 WrapperNode [2020-09-25 13:22:12,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:22:12,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:22:12,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:22:12,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:22:12,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:12" (1/1) ... [2020-09-25 13:22:12,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:12" (1/1) ... [2020-09-25 13:22:12,210 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:12" (1/1) ... [2020-09-25 13:22:12,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:12" (1/1) ... [2020-09-25 13:22:12,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:12" (1/1) ... [2020-09-25 13:22:12,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:12" (1/1) ... [2020-09-25 13:22:12,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:12" (1/1) ... [2020-09-25 13:22:12,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:22:12,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:22:12,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:22:12,226 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:22:12,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:12" (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 13:22:12,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:22:12,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:22:12,389 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-25 13:22:12,389 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:22:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:22:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:22:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-25 13:22:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:22:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:22:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:22:12,600 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:22:12,600 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 13:22:12,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:22:12 BoogieIcfgContainer [2020-09-25 13:22:12,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:22:12,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:22:12,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:22:12,612 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:22:12,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:22:11" (1/3) ... [2020-09-25 13:22:12,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@258a6ba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:22:12, skipping insertion in model container [2020-09-25 13:22:12,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:12" (2/3) ... [2020-09-25 13:22:12,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@258a6ba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:22:12, skipping insertion in model container [2020-09-25 13:22:12,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:22:12" (3/3) ... [2020-09-25 13:22:12,617 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_10-2.c [2020-09-25 13:22:12,629 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:22:12,640 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:22:12,671 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:22:12,711 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:22:12,711 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:22:12,712 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:22:12,712 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:22:12,712 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:22:12,712 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:22:12,712 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:22:12,713 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:22:12,741 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-25 13:22:12,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 13:22:12,752 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:22:12,753 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:22:12,754 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:22:12,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:22:12,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times [2020-09-25 13:22:12,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:22:12,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1267340557] [2020-09-25 13:22:12,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:22:12,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:12,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:12,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:12,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:22:12,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:12,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 13:22:12,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:12,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:12,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:22:12,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:22:12,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:22:12,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 13:22:13,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:22:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:13,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:13,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:13,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:22:13,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:13,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:22:13,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:13,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:13,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:13,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:13,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:13,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:13,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:22:13,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:13,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:13,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:13,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:13,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:13,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 13:22:13,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:13,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:13,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:22:13,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:22:13,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:22:13,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:22:13,150 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 13:22:13,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1267340557] [2020-09-25 13:22:13,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:22:13,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 13:22:13,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604819857] [2020-09-25 13:22:13,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:22:13,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:22:13,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:22:13,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:22:13,180 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-25 13:22:13,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:22:13,300 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-25 13:22:13,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:22:13,302 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 13:22:13,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:22:13,316 INFO L225 Difference]: With dead ends: 44 [2020-09-25 13:22:13,317 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 13:22:13,321 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 13:22:13,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 13:22:13,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 13:22:13,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 13:22:13,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 13:22:13,378 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-25 13:22:13,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:22:13,379 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 13:22:13,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:22:13,379 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 13:22:13,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 13:22:13,382 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:22:13,382 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 13:22:13,382 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:22:13,383 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:22:13,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:22:13,383 INFO L82 PathProgramCache]: Analyzing trace with hash -389703589, now seen corresponding path program 1 times [2020-09-25 13:22:13,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:22:13,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [79630547] [2020-09-25 13:22:13,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:22:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:13,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:13,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:13,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 13:22:13,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:13,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 13:22:13,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:13,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:13,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:22:13,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:22:13,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:22:13,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:13,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:22:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:13,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:13,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:13,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:22:13,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:13,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:22:13,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:13,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:13,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:13,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:13,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:13,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:13,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:22:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:13,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:13,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:13,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:22:13,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:13,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 13:22:13,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:13,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:13,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:22:13,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:22:13,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:22:13,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 13:22:13,630 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 13:22:13,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [79630547] [2020-09-25 13:22:13,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:22:13,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 13:22:13,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231473312] [2020-09-25 13:22:13,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:22:13,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:22:13,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:22:13,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:22:13,634 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-25 13:22:13,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:22:13,717 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-25 13:22:13,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:22:13,718 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 13:22:13,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:22:13,719 INFO L225 Difference]: With dead ends: 36 [2020-09-25 13:22:13,720 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 13:22:13,721 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 13:22:13,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 13:22:13,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-25 13:22:13,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 13:22:13,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 13:22:13,730 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-25 13:22:13,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:22:13,730 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 13:22:13,730 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:22:13,730 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 13:22:13,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 13:22:13,732 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:22:13,732 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:22:13,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:22:13,733 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:22:13,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:22:13,733 INFO L82 PathProgramCache]: Analyzing trace with hash 50309368, now seen corresponding path program 1 times [2020-09-25 13:22:13,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:22:13,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [251760182] [2020-09-25 13:22:13,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:22:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:13,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:13,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:13,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:14,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:14,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 13:22:14,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:22:14,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 619 [2020-09-25 13:22:14,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:14,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:14,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:22:14,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:22:14,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:22:14,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:22:14,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:22:14,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:14,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:14,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:14,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:22:14,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:14,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:22:14,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:14,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:14,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:14,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:14,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:14,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:14,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:22:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:14,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:14,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:14,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:14,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:14,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 13:22:14,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:22:14,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-09-25 13:22:14,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:14,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:14,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:22:14,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:22:14,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:22:14,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:14,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:14,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:14,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:14,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:14,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:14,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:22:14,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:14,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:14,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:22:14,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:14,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:22:14,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:22:14,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 13:22:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:14,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:14,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:14,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:14,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:14,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:22:14,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:14,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:14,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:22:14,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:14,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:22:14,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:14,788 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 13:22:14,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [251760182] [2020-09-25 13:22:14,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:22:14,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 13:22:14,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693130011] [2020-09-25 13:22:14,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 13:22:14,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:22:14,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 13:22:14,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:22:14,791 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 6 states. [2020-09-25 13:22:14,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:22:14,891 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-09-25 13:22:14,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 13:22:14,892 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-09-25 13:22:14,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:22:14,895 INFO L225 Difference]: With dead ends: 44 [2020-09-25 13:22:14,895 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 13:22:14,896 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:22:14,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 13:22:14,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2020-09-25 13:22:14,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-25 13:22:14,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-25 13:22:14,906 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 33 [2020-09-25 13:22:14,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:22:14,906 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-25 13:22:14,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 13:22:14,907 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-25 13:22:14,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 13:22:14,909 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:22:14,909 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:22:14,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:22:14,910 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:22:14,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:22:14,910 INFO L82 PathProgramCache]: Analyzing trace with hash 765810174, now seen corresponding path program 1 times [2020-09-25 13:22:14,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:22:14,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1029163656] [2020-09-25 13:22:14,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:22:14,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:14,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:14,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:14,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:15,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:15,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:15,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 13:22:15,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:22:15,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 542 [2020-09-25 13:22:15,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:15,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:15,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:22:15,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:22:15,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 13:22:15,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:15,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:22:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:15,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:15,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:15,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:22:15,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:15,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:22:15,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:15,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:15,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:15,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:15,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:15,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:15,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:22:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:15,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:15,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:15,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:15,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:15,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:15,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 13:22:15,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:22:15,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 460 [2020-09-25 13:22:15,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:15,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:15,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:22:15,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:22:15,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 13:22:15,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:15,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:16,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:16,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:16,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:22:16,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:16,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 13:22:16,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:16,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:16,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:22:16,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:16,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:22:16,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:22:16,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:22:16,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:16,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:16,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:16,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:22:16,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:16,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 13:22:16,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:16,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:16,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:22:16,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:16,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:22:16,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:16,096 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 13:22:16,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1029163656] [2020-09-25 13:22:16,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:22:16,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 13:22:16,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557365644] [2020-09-25 13:22:16,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 13:22:16,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:22:16,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 13:22:16,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:22:16,103 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 6 states. [2020-09-25 13:22:16,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:22:16,248 INFO L93 Difference]: Finished difference Result 88 states and 137 transitions. [2020-09-25 13:22:16,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 13:22:16,250 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-25 13:22:16,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:22:16,256 INFO L225 Difference]: With dead ends: 88 [2020-09-25 13:22:16,256 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 13:22:16,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:22:16,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 13:22:16,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2020-09-25 13:22:16,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 13:22:16,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 69 transitions. [2020-09-25 13:22:16,273 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 69 transitions. Word has length 35 [2020-09-25 13:22:16,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:22:16,273 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 69 transitions. [2020-09-25 13:22:16,274 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 13:22:16,274 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 69 transitions. [2020-09-25 13:22:16,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 13:22:16,277 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:22:16,277 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:22:16,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:22:16,278 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:22:16,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:22:16,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1693530075, now seen corresponding path program 1 times [2020-09-25 13:22:16,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:22:16,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [871746415] [2020-09-25 13:22:16,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:22:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:16,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:16,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:16,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:16,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:16,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:16,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:16,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:21,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:21,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 13:22:21,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 13:22:21,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 13:22:21,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:21,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:21,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:22:21,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:22:21,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 13:22:21,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:21,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:22:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:21,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:21,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:21,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:22:21,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:21,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:22:21,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:21,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:21,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:21,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:21,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:21,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:21,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:22:21,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:21,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:21,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:21,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:21,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:21,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:21,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:21,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:25,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:25,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 13:22:25,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 13:22:25,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4070 [2020-09-25 13:22:25,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:25,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:25,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:22:25,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:22:25,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 13:22:25,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:25,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:25,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:25,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:25,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:25,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 13:22:25,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:22:25,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 13:22:25,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:25,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:25,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:22:25,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:25,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:22:25,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:25,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:25,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:25,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:25,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:25,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:25,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:25,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:22:25,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:25,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:25,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:25,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:25,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:25,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:25,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 13:22:25,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:25,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:25,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:25,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:25,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:25,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:22:25,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:25,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:25,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:25,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:25,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:25,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:25,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 13:22:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:25,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:25,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:25,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:22:25,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:25,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 13:22:25,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:25,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:25,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:22:25,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:25,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:22:25,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:25,585 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-25 13:22:25,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [871746415] [2020-09-25 13:22:25,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:22:25,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 13:22:25,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875311868] [2020-09-25 13:22:25,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 13:22:25,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:22:25,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 13:22:25,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:22:25,589 INFO L87 Difference]: Start difference. First operand 50 states and 69 transitions. Second operand 6 states. [2020-09-25 13:22:25,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:22:25,715 INFO L93 Difference]: Finished difference Result 68 states and 91 transitions. [2020-09-25 13:22:25,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 13:22:25,717 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2020-09-25 13:22:25,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:22:25,719 INFO L225 Difference]: With dead ends: 68 [2020-09-25 13:22:25,719 INFO L226 Difference]: Without dead ends: 62 [2020-09-25 13:22:25,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:22:25,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-25 13:22:25,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 50. [2020-09-25 13:22:25,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 13:22:25,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 69 transitions. [2020-09-25 13:22:25,735 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 69 transitions. Word has length 51 [2020-09-25 13:22:25,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:22:25,735 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 69 transitions. [2020-09-25 13:22:25,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 13:22:25,735 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 69 transitions. [2020-09-25 13:22:25,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 13:22:25,739 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:22:25,739 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:22:25,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 13:22:25,740 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:22:25,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:22:25,740 INFO L82 PathProgramCache]: Analyzing trace with hash 809102171, now seen corresponding path program 2 times [2020-09-25 13:22:25,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:22:25,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [503596802] [2020-09-25 13:22:25,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:22:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:25,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:25,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:25,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:25,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:25,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:26,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:27,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:27,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:28,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:28,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:28,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:28,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:30,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:30,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:30,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:30,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:30,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:30,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 13:22:30,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-25 13:22:30,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-09-25 13:22:30,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:30,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:30,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:22:30,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:22:30,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 13:22:30,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:30,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:22:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:30,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:30,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:30,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:22:30,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:30,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:22:30,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:30,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:30,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:30,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:30,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:30,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:30,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:22:30,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:30,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:30,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:30,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:30,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:31,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:31,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:31,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:31,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:33,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:35,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:35,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 13:22:35,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 13:22:35,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 13:22:35,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:35,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:35,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 13:22:35,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:22:35,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 13:22:35,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:35,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:35,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:35,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:35,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:36,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:36,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 13:22:36,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:22:36,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-09-25 13:22:36,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:36,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:36,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:22:36,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:36,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 13:22:36,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:22:36,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:36,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:36,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:36,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:36,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:36,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 13:22:36,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:36,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:36,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:22:36,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:36,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:22:36,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:36,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 13:22:36,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:36,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:36,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:36,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:36,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:36,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:22:36,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:36,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:36,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:22:36,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:36,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:22:36,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:36,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 13:22:36,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:36,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:36,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:36,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:36,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:36,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:36,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:37,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:37,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 13:22:37,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 13:22:37,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1797 [2020-09-25 13:22:37,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:37,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:37,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:22:37,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:22:37,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 13:22:37,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:22:37,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:37,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:37,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:37,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:37,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:22:37,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:37,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 13:22:37,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:37,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:37,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:22:38,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:38,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:22:38,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:38,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:22:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:38,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:38,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:38,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:38,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 13:22:38,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:22:38,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 13:22:38,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:38,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:38,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:22:38,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:38,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:22:38,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:38,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:38,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:38,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:38,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:38,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:38,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:22:38,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:38,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:38,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:38,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:38,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:38,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:38,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 13:22:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:38,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:38,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:38,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:38,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:38,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:22:38,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:38,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:38,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:38,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:38,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:38,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:38,104 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 55 proven. 68 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-09-25 13:22:38,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [503596802] [2020-09-25 13:22:38,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:22:38,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 13:22:38,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918757794] [2020-09-25 13:22:38,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:22:38,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:22:38,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:22:38,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:22:38,109 INFO L87 Difference]: Start difference. First operand 50 states and 69 transitions. Second operand 10 states. [2020-09-25 13:22:38,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:22:38,337 INFO L93 Difference]: Finished difference Result 94 states and 132 transitions. [2020-09-25 13:22:38,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 13:22:38,338 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-09-25 13:22:38,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:22:38,341 INFO L225 Difference]: With dead ends: 94 [2020-09-25 13:22:38,342 INFO L226 Difference]: Without dead ends: 49 [2020-09-25 13:22:38,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-09-25 13:22:38,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-09-25 13:22:38,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2020-09-25 13:22:38,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-25 13:22:38,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2020-09-25 13:22:38,362 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 85 [2020-09-25 13:22:38,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:22:38,364 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2020-09-25 13:22:38,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:22:38,364 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2020-09-25 13:22:38,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 13:22:38,369 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:22:38,369 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:22:38,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 13:22:38,370 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:22:38,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:22:38,370 INFO L82 PathProgramCache]: Analyzing trace with hash 501566307, now seen corresponding path program 3 times [2020-09-25 13:22:38,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:22:38,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1334697802] [2020-09-25 13:22:38,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:22:38,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:38,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:38,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:38,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:38,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:38,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:38,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:38,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:38,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:41,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:41,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:43,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:43,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-25 13:22:43,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 13:22:43,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 13:22:43,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:43,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:43,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 13:22:43,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 13:22:43,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 13:22:43,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:43,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:22:43,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:43,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:43,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:43,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:22:43,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:43,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:22:43,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:43,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:43,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:43,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:43,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:43,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:43,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:22:43,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:43,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:43,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:43,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:43,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:43,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:43,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:43,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:44,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:44,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:47,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:48,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:48,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 13:22:48,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 13:22:48,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 13:22:48,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:48,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:48,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 13:22:48,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:22:48,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 13:22:48,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:48,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:48,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:48,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:48,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:48,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 13:22:48,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:22:48,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-25 13:22:48,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:48,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:48,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:22:48,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:48,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 13:22:48,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:22:48,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:48,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:48,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:48,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:22:48,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:48,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:22:48,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:48,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:48,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:22:48,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:48,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:22:48,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:48,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:22:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:48,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:48,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:48,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:48,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:48,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:22:48,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:48,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:48,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:22:48,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:48,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:22:48,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:22:48,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 13:22:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:48,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:48,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:48,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:48,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:48,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:48,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:51,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:51,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 13:22:51,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 13:22:51,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2655 [2020-09-25 13:22:51,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:51,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:51,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:22:51,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:22:51,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 13:22:51,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:22:51,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:51,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:51,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:51,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:51,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 13:22:51,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:51,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 13:22:51,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:51,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:51,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:22:51,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:51,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 13:22:51,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:51,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:51,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:51,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:51,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:51,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:22:51,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:51,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:22:51,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:51,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:51,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:51,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:51,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:51,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:22:51,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:22:51,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:51,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:51,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:51,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:51,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:51,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:22:51,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:51,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:51,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:51,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:51,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:51,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:22:51,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 13:22:51,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:51,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:51,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:51,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:22:51,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:51,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:22:51,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:51,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:51,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:22:51,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:51,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:22:51,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:22:51,415 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 59 proven. 64 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-09-25 13:22:51,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1334697802] [2020-09-25 13:22:51,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:22:51,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 13:22:51,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067503310] [2020-09-25 13:22:51,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 13:22:51,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:22:51,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 13:22:51,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:22:51,420 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand 8 states. [2020-09-25 13:22:51,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:22:51,677 INFO L93 Difference]: Finished difference Result 99 states and 129 transitions. [2020-09-25 13:22:51,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 13:22:51,678 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 87 [2020-09-25 13:22:51,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:22:51,680 INFO L225 Difference]: With dead ends: 99 [2020-09-25 13:22:51,680 INFO L226 Difference]: Without dead ends: 60 [2020-09-25 13:22:51,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-09-25 13:22:51,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-25 13:22:51,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2020-09-25 13:22:51,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 13:22:51,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2020-09-25 13:22:51,691 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 87 [2020-09-25 13:22:51,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:22:51,691 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2020-09-25 13:22:51,691 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 13:22:51,691 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2020-09-25 13:22:51,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-25 13:22:51,693 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:22:51,693 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:22:51,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 13:22:51,694 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:22:51,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:22:51,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1883941443, now seen corresponding path program 4 times [2020-09-25 13:22:51,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:22:51,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1077685233] [2020-09-25 13:22:51,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:22:51,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:51,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:51,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:51,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:51,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:51,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:52,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:52,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:52,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:52,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:53,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:53,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:56,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:56,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-25 13:22:56,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 13:22:56,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 13:22:56,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:56,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:56,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:22:56,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 13:22:56,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 13:22:56,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:22:56,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:22:56,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:56,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:56,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:56,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:22:56,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:56,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:22:56,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:56,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:56,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:56,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:56,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:56,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:22:56,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:22:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:56,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:56,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:56,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:56,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:59,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:59,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:59,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:59,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:59,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:01,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:01,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 13:23:01,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 13:23:01,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 13:23:01,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:01,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:01,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 13:23:01,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:23:01,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 13:23:01,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:23:01,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:23:01,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:01,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:01,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:01,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:03,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:03,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 13:23:03,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:23:03,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1466 [2020-09-25 13:23:03,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:03,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:03,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:23:03,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:23:03,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 13:23:03,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:23:03,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:23:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:03,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:03,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:03,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 13:23:03,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:23:03,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 13:23:03,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:03,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:03,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:23:03,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:23:03,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 13:23:03,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:23:03,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:23:03,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:03,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:03,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:03,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:23:03,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:23:03,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:23:03,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:03,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:03,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:23:03,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:23:03,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:23:03,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:23:03,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:23:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:03,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:03,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:03,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:23:03,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:23:03,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:23:03,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:03,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:03,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:23:03,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:23:03,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:23:03,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:23:03,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 13:23:03,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:03,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:03,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:03,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:23:03,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:23:03,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 13:23:03,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:03,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:03,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:23:03,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:23:03,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:23:03,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:23:03,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 13:23:03,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:03,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:03,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:03,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:03,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:03,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:04,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:04,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:05,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:05,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:05,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:06,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:06,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking...