/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=0.5 --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/Fibonacci05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:28:57,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:28:57,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:28:57,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:28:57,362 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:28:57,363 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:28:57,365 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:28:57,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:28:57,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:28:57,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:28:57,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:28:57,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:28:57,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:28:57,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:28:57,375 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:28:57,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:28:57,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:28:57,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:28:57,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:28:57,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:28:57,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:28:57,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:28:57,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:28:57,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:28:57,397 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:28:57,397 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:28:57,398 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:28:57,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:28:57,402 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:28:57,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:28:57,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:28:57,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:28:57,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:28:57,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:28:57,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:28:57,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:28:57,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:28:57,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:28:57,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:28:57,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:28:57,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:28:57,424 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 14:28:57,478 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:28:57,478 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:28:57,479 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:28:57,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:28:57,480 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:28:57,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:28:57,480 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:28:57,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:28:57,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:28:57,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:28:57,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:28:57,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:28:57,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:28:57,482 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:28:57,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:28:57,483 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:28:57,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:28:57,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:28:57,483 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:28:57,483 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:28:57,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:28:57,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:28:57,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:28:57,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:28:57,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:28:57,485 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:28:57,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:28:57,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:28:57,486 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:28:57,486 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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;log-additional-information=true; [2020-09-25 14:28:57,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:28:57,985 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:28:57,989 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:28:57,991 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:28:57,991 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:28:57,993 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Fibonacci05.c [2020-09-25 14:28:58,071 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52c0e731a/08083e06f5d545a0ac80bdc2c317f886/FLAGf45e2bd95 [2020-09-25 14:28:58,590 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:28:58,591 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Fibonacci05.c [2020-09-25 14:28:58,599 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52c0e731a/08083e06f5d545a0ac80bdc2c317f886/FLAGf45e2bd95 [2020-09-25 14:28:58,924 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52c0e731a/08083e06f5d545a0ac80bdc2c317f886 [2020-09-25 14:28:58,938 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:28:58,944 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:28:58,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:28:58,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:28:58,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:28:58,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:28:58" (1/1) ... [2020-09-25 14:28:58,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39c1a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:58, skipping insertion in model container [2020-09-25 14:28:58,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:28:58" (1/1) ... [2020-09-25 14:28:58,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:28:58,995 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:28:59,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:28:59,199 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:28:59,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:28:59,235 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:28:59,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:59 WrapperNode [2020-09-25 14:28:59,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:28:59,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:28:59,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:28:59,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:28:59,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:59" (1/1) ... [2020-09-25 14:28:59,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:59" (1/1) ... [2020-09-25 14:28:59,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:59" (1/1) ... [2020-09-25 14:28:59,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:59" (1/1) ... [2020-09-25 14:28:59,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:59" (1/1) ... [2020-09-25 14:28:59,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:59" (1/1) ... [2020-09-25 14:28:59,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:59" (1/1) ... [2020-09-25 14:28:59,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:28:59,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:28:59,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:28:59,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:28:59,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:59" (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 14:28:59,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:28:59,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:28:59,418 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2020-09-25 14:28:59,418 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:28:59,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:28:59,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:28:59,419 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2020-09-25 14:28:59,419 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:28:59,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:28:59,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:28:59,622 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:28:59,623 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 14:28:59,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:28:59 BoogieIcfgContainer [2020-09-25 14:28:59,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:28:59,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:28:59,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:28:59,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:28:59,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:28:58" (1/3) ... [2020-09-25 14:28:59,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0469ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:28:59, skipping insertion in model container [2020-09-25 14:28:59,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:59" (2/3) ... [2020-09-25 14:28:59,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0469ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:28:59, skipping insertion in model container [2020-09-25 14:28:59,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:28:59" (3/3) ... [2020-09-25 14:28:59,637 INFO L109 eAbstractionObserver]: Analyzing ICFG Fibonacci05.c [2020-09-25 14:28:59,648 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:28:59,658 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:28:59,680 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:28:59,710 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:28:59,711 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:28:59,711 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:28:59,711 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:28:59,711 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:28:59,711 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:28:59,712 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:28:59,712 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:28:59,735 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-09-25 14:28:59,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-25 14:28:59,742 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:28:59,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:28:59,743 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:28:59,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:28:59,750 INFO L82 PathProgramCache]: Analyzing trace with hash -2064988448, now seen corresponding path program 1 times [2020-09-25 14:28:59,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:28:59,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1104322361] [2020-09-25 14:28:59,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:28:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:59,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:59,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:59,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 14:28:59,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:59,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 14:28:59,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:59,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:59,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:28:59,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 14:28:59,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:28:59,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:29:00,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:00,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:00,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:00,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:00,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:00,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:00,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:29:00,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:00,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:00,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:00,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:00,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:00,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:00,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 14:29:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:00,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:00,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:00,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:00,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:00,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 14:29:00,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:00,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:00,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:29:00,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:00,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:29:00,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:00,158 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 14:29:00,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1104322361] [2020-09-25 14:29:00,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:29:00,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:29:00,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219092100] [2020-09-25 14:29:00,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:29:00,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:00,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:29:00,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:29:00,212 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2020-09-25 14:29:00,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:00,363 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2020-09-25 14:29:00,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:29:00,365 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-25 14:29:00,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:00,379 INFO L225 Difference]: With dead ends: 48 [2020-09-25 14:29:00,379 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 14:29:00,384 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 14:29:00,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 14:29:00,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-25 14:29:00,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-25 14:29:00,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-09-25 14:29:00,437 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 18 [2020-09-25 14:29:00,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:00,438 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-09-25 14:29:00,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:29:00,438 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-09-25 14:29:00,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-25 14:29:00,440 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:00,441 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:29:00,441 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:29:00,441 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:00,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:00,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1678486471, now seen corresponding path program 1 times [2020-09-25 14:29:00,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:00,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856006502] [2020-09-25 14:29:00,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:00,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:00,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:00,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 14:29:00,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:00,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 14:29:00,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:00,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:00,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:29:00,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 14:29:00,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 14:29:00,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:00,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:00,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:00,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:00,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:00,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:00,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:00,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:29:00,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:00,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:00,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:00,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:00,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:00,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 14:29:00,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 14:29:00,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:00,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:00,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:00,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:00,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:00,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 14:29:00,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:00,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:00,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:29:00,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:00,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:29:00,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:00,684 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 14:29:00,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856006502] [2020-09-25 14:29:00,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:29:00,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:29:00,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066672537] [2020-09-25 14:29:00,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:29:00,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:00,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:29:00,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:29:00,689 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 5 states. [2020-09-25 14:29:00,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:00,751 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2020-09-25 14:29:00,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:29:00,753 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-09-25 14:29:00,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:00,755 INFO L225 Difference]: With dead ends: 38 [2020-09-25 14:29:00,755 INFO L226 Difference]: Without dead ends: 32 [2020-09-25 14:29:00,758 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 14:29:00,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-09-25 14:29:00,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2020-09-25 14:29:00,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-25 14:29:00,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-09-25 14:29:00,770 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 19 [2020-09-25 14:29:00,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:00,770 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-09-25 14:29:00,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:29:00,771 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-09-25 14:29:00,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 14:29:00,773 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:00,773 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, 1, 1] [2020-09-25 14:29:00,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:29:00,773 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:00,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:00,774 INFO L82 PathProgramCache]: Analyzing trace with hash 961212118, now seen corresponding path program 1 times [2020-09-25 14:29:00,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:00,775 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851433841] [2020-09-25 14:29:00,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:00,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:00,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:00,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:01,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:01,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 14:29:01,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:29:01,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 510 [2020-09-25 14:29:01,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:01,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:01,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:01,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 14:29:01,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 14:29:01,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:29:01,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:01,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:01,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:01,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:01,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:01,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:29:01,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:01,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:01,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:01,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:01,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:01,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:01,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 14:29:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:01,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:01,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:01,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:01,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:29:01,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:01,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 14:29:01,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:01,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:01,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:01,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:01,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 14:29:01,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:01,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:01,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:01,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:01,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:01,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:01,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:29:01,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:01,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:01,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:29:01,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:01,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:29:01,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:01,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:29:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:01,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:01,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:01,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:01,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:01,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:29:01,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:01,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:01,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:01,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:01,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:29:01,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:01,551 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 14:29:01,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1851433841] [2020-09-25 14:29:01,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:29:01,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 14:29:01,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485270071] [2020-09-25 14:29:01,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:29:01,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:01,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:29:01,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:29:01,554 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 7 states. [2020-09-25 14:29:01,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:01,656 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2020-09-25 14:29:01,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:29:01,657 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 14:29:01,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:01,659 INFO L225 Difference]: With dead ends: 68 [2020-09-25 14:29:01,659 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 14:29:01,661 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:29:01,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 14:29:01,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2020-09-25 14:29:01,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-25 14:29:01,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2020-09-25 14:29:01,670 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 35 [2020-09-25 14:29:01,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:01,671 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2020-09-25 14:29:01,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:29:01,671 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2020-09-25 14:29:01,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 14:29:01,673 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:01,673 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:29:01,673 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:29:01,673 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:01,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:01,674 INFO L82 PathProgramCache]: Analyzing trace with hash -125795935, now seen corresponding path program 1 times [2020-09-25 14:29:01,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:01,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1999365564] [2020-09-25 14:29:01,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:01,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:01,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:02,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:02,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 14:29:02,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:02,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 348 [2020-09-25 14:29:02,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:02,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:02,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:02,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 14:29:02,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 14:29:02,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:02,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:02,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:02,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:02,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:02,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:02,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:02,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:29:02,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:02,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:02,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:02,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:02,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:02,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:02,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 14:29:02,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:02,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:02,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:02,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:02,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 14:29:02,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:02,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-09-25 14:29:02,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:02,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:02,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:02,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 14:29:02,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:02,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:02,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:02,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:02,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:02,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:02,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 14:29:02,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:02,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:02,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:29:02,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:02,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:29:02,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:29:02,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 14:29:02,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:02,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:02,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:02,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:02,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:02,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 14:29:02,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:02,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:02,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:02,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:02,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:29:02,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:29:02,512 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 14:29:02,514 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1999365564] [2020-09-25 14:29:02,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:29:02,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 14:29:02,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078146202] [2020-09-25 14:29:02,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:29:02,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:02,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:29:02,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:29:02,519 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 7 states. [2020-09-25 14:29:02,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:02,658 INFO L93 Difference]: Finished difference Result 74 states and 93 transitions. [2020-09-25 14:29:02,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:29:02,658 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-09-25 14:29:02,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:02,662 INFO L225 Difference]: With dead ends: 74 [2020-09-25 14:29:02,662 INFO L226 Difference]: Without dead ends: 68 [2020-09-25 14:29:02,664 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:29:02,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-25 14:29:02,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 62. [2020-09-25 14:29:02,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-25 14:29:02,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 80 transitions. [2020-09-25 14:29:02,691 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 80 transitions. Word has length 36 [2020-09-25 14:29:02,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:02,692 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 80 transitions. [2020-09-25 14:29:02,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:29:02,692 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 80 transitions. [2020-09-25 14:29:02,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-25 14:29:02,700 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:02,700 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 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 14:29:02,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:29:02,700 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:02,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:02,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1970096676, now seen corresponding path program 2 times [2020-09-25 14:29:02,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:02,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874719855] [2020-09-25 14:29:02,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:02,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:02,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:02,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:02,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:03,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:03,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:03,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:03,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:06,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:06,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 14:29:06,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 14:29:06,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4113 [2020-09-25 14:29:06,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:06,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:06,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:06,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 14:29:06,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 14:29:06,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:06,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:06,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:06,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:06,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:06,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:06,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:06,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:29:06,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:06,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:06,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:06,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:06,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:06,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:06,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 14:29:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:06,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:06,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:06,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:07,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:07,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:07,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:08,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:08,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 14:29:08,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 14:29:08,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1426 [2020-09-25 14:29:08,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:08,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:08,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:08,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:08,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 14:29:08,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:08,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:08,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:08,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:08,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:08,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:08,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:29:08,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:08,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 14:29:08,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:08,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:29:08,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:08,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:08,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:08,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:08,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:08,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:08,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:08,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:29:08,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:08,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:08,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:08,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:08,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:08,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:08,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:29:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:08,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:08,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:08,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:08,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:08,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:29:08,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:08,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:08,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:08,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:08,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:08,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:08,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 14:29:08,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:08,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:08,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:08,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:08,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:08,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:29:08,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:08,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:08,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:29:08,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:08,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:29:08,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:08,441 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-09-25 14:29:08,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874719855] [2020-09-25 14:29:08,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:29:08,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 14:29:08,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484134008] [2020-09-25 14:29:08,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:29:08,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:08,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:29:08,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:29:08,444 INFO L87 Difference]: Start difference. First operand 62 states and 80 transitions. Second operand 6 states. [2020-09-25 14:29:08,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:08,514 INFO L93 Difference]: Finished difference Result 86 states and 108 transitions. [2020-09-25 14:29:08,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 14:29:08,515 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-09-25 14:29:08,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:08,517 INFO L225 Difference]: With dead ends: 86 [2020-09-25 14:29:08,517 INFO L226 Difference]: Without dead ends: 80 [2020-09-25 14:29:08,518 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 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 14:29:08,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-25 14:29:08,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 62. [2020-09-25 14:29:08,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-25 14:29:08,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 80 transitions. [2020-09-25 14:29:08,531 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 80 transitions. Word has length 52 [2020-09-25 14:29:08,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:08,531 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 80 transitions. [2020-09-25 14:29:08,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:29:08,532 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 80 transitions. [2020-09-25 14:29:08,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 14:29:08,534 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:08,534 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, 1, 1] [2020-09-25 14:29:08,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 14:29:08,534 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:08,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:08,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1486829505, now seen corresponding path program 2 times [2020-09-25 14:29:08,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:08,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1731442186] [2020-09-25 14:29:08,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:08,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:08,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:08,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:08,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:09,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:09,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:10,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:12,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:12,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 14:29:12,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 14:29:12,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3808 [2020-09-25 14:29:12,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:12,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:12,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:12,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 14:29:12,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 14:29:12,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:12,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:12,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:12,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:12,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:12,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:12,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:29:12,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:12,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:12,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:12,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:12,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:12,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:12,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 14:29:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:12,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:12,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:12,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:12,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:13,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:13,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:13,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:15,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:15,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 14:29:15,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 14:29:15,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3327 [2020-09-25 14:29:15,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:15,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:15,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:15,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:15,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 14:29:15,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:15,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:15,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:15,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:15,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:15,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:15,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:29:15,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:29:15,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 14:29:15,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:15,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:15,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:15,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:15,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:29:15,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:15,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:15,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:15,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:15,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:15,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:15,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:29:15,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:15,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:15,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:15,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:15,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:15,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:15,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:29:15,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:15,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:15,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:15,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:15,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:15,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:29:15,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:15,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:15,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:15,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:15,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:15,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:15,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 14:29:15,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:15,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:15,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:15,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:15,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:15,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 14:29:15,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:15,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:15,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:29:15,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:15,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:29:15,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:15,949 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-25 14:29:15,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1731442186] [2020-09-25 14:29:15,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:29:15,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 14:29:15,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576681277] [2020-09-25 14:29:15,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:29:15,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:15,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:29:15,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:29:15,953 INFO L87 Difference]: Start difference. First operand 62 states and 80 transitions. Second operand 7 states. [2020-09-25 14:29:16,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:16,064 INFO L93 Difference]: Finished difference Result 84 states and 106 transitions. [2020-09-25 14:29:16,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:29:16,065 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2020-09-25 14:29:16,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:16,068 INFO L225 Difference]: With dead ends: 84 [2020-09-25 14:29:16,068 INFO L226 Difference]: Without dead ends: 78 [2020-09-25 14:29:16,069 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:29:16,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-25 14:29:16,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 58. [2020-09-25 14:29:16,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 14:29:16,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 76 transitions. [2020-09-25 14:29:16,080 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 76 transitions. Word has length 53 [2020-09-25 14:29:16,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:16,081 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 76 transitions. [2020-09-25 14:29:16,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:29:16,081 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 76 transitions. [2020-09-25 14:29:16,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 14:29:16,084 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:16,084 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, 1, 1] [2020-09-25 14:29:16,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 14:29:16,084 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:16,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:16,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1801616585, now seen corresponding path program 3 times [2020-09-25 14:29:16,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:16,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1107117708] [2020-09-25 14:29:16,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:16,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:16,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:16,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:16,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:16,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:16,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:16,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:16,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:18,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:18,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:18,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:18,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:18,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:21,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:21,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-25 14:29:21,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 14:29:21,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 14:29:21,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:21,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:21,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:29:21,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 14:29:21,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 14:29:21,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:21,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:21,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:21,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:21,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:21,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:21,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:21,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:29:21,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:21,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:21,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:21,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:21,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:21,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:21,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 14:29:21,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:21,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:21,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:21,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:21,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:21,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:21,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:21,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:21,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:21,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:21,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:22,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:22,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:22,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:26,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:26,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 14:29:26,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 14:29:26,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 14:29:26,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:26,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:26,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 14:29:26,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:29:26,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 14:29:26,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:26,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:26,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:26,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:26,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:26,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:26,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:29:26,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:29:26,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-25 14:29:26,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:26,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:26,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:26,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:26,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 14:29:26,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:26,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:26,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:26,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:26,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:26,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:26,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:29:26,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:26,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:26,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:29:26,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:26,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:29:26,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:26,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:29:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:26,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:26,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:26,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:26,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:26,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:29:26,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:26,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:26,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:26,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:26,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:29:26,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:26,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 14:29:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:26,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:26,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:26,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:26,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:26,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:26,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:26,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:26,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:28,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:28,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 14:29:28,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 14:29:28,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1967 [2020-09-25 14:29:28,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:28,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:28,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:29:28,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:29:28,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 14:29:28,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:28,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:28,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:28,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:28,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:28,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:28,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:29:28,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:28,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 14:29:28,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:28,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:28,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:28,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:28,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:29:28,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:28,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:28,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:28,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:28,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:28,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:28,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:28,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:29:28,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:28,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:28,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:28,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:28,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:28,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:28,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:29:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:28,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:28,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:28,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:28,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:28,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:29:28,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:28,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:28,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:28,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:28,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:28,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:28,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 14:29:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:28,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:28,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:28,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:28,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:28,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:29:28,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:28,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:28,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:28,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:28,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:29:28,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:28,515 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 54 proven. 69 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-09-25 14:29:28,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1107117708] [2020-09-25 14:29:28,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:29:28,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 14:29:28,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543378252] [2020-09-25 14:29:28,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:29:28,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:28,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:29:28,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:29:28,518 INFO L87 Difference]: Start difference. First operand 58 states and 76 transitions. Second operand 9 states. [2020-09-25 14:29:28,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:28,741 INFO L93 Difference]: Finished difference Result 93 states and 126 transitions. [2020-09-25 14:29:28,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 14:29:28,741 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 87 [2020-09-25 14:29:28,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:28,742 INFO L225 Difference]: With dead ends: 93 [2020-09-25 14:29:28,743 INFO L226 Difference]: Without dead ends: 43 [2020-09-25 14:29:28,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-25 14:29:28,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-25 14:29:28,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-09-25 14:29:28,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-25 14:29:28,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2020-09-25 14:29:28,750 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 87 [2020-09-25 14:29:28,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:28,751 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2020-09-25 14:29:28,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:29:28,751 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2020-09-25 14:29:28,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-25 14:29:28,752 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:28,752 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, 1, 1] [2020-09-25 14:29:28,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 14:29:28,753 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:28,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:28,753 INFO L82 PathProgramCache]: Analyzing trace with hash 4423077, now seen corresponding path program 4 times [2020-09-25 14:29:28,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:28,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798228270] [2020-09-25 14:29:28,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:28,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:28,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:28,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:28,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:28,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:28,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:29,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:29,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:29,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:32,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:33,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:33,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:33,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-25 14:29:33,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 14:29:33,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 14:29:33,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:33,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:33,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 14:29:33,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 14:29:33,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 14:29:33,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:33,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:33,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:33,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:33,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:33,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:33,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:33,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:29:33,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:33,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:33,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:33,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:33,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:33,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:33,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 14:29:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:33,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:33,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:33,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:33,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:34,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:34,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:34,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:34,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:34,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:34,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:34,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:36,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:36,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:36,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:37,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:38,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:38,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 14:29:38,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 14:29:38,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 14:29:38,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:38,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:38,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 14:29:38,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:29:38,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 14:29:38,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:38,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:38,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:38,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:38,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:38,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:38,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 14:29:38,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:38,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 14:29:38,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:38,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:38,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:38,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:38,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 14:29:38,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:38,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:38,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:38,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:38,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:38,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:38,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:38,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:29:38,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:38,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:38,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:29:38,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:38,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:29:38,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:38,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 14:29:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:38,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:38,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:39,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:39,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:39,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:29:39,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:39,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:39,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:39,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:39,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:29:39,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:39,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 14:29:39,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:39,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:39,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:39,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:39,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:39,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:39,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:40,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:40,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 14:29:40,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 14:29:40,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1573 [2020-09-25 14:29:40,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:40,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:40,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:29:40,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:29:40,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 14:29:40,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:40,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:40,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:40,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:40,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 14:29:40,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:40,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 14:29:40,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:40,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:40,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:40,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:40,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 14:29:40,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:40,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:40,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:40,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:40,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:40,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:40,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:29:40,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:40,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:40,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:40,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:40,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:40,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:40,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 14:29:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:40,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:40,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:40,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:40,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:40,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:29:40,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:40,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:40,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:40,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:40,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:40,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:40,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 14:29:40,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:40,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:40,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:40,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:40,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:40,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:29:40,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:40,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:40,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:40,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:40,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:29:40,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:40,723 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 55 proven. 76 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-25 14:29:40,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798228270] [2020-09-25 14:29:40,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:29:40,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 14:29:40,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801535319] [2020-09-25 14:29:40,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 14:29:40,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:40,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 14:29:40,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:29:40,726 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand 10 states. [2020-09-25 14:29:40,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:40,986 INFO L93 Difference]: Finished difference Result 89 states and 116 transitions. [2020-09-25 14:29:40,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 14:29:40,987 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 89 [2020-09-25 14:29:40,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:40,990 INFO L225 Difference]: With dead ends: 89 [2020-09-25 14:29:40,990 INFO L226 Difference]: Without dead ends: 53 [2020-09-25 14:29:40,992 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2020-09-25 14:29:40,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-09-25 14:29:40,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-09-25 14:29:41,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-25 14:29:41,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 63 transitions. [2020-09-25 14:29:41,004 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 63 transitions. Word has length 89 [2020-09-25 14:29:41,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:41,004 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 63 transitions. [2020-09-25 14:29:41,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 14:29:41,005 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2020-09-25 14:29:41,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-25 14:29:41,007 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:41,007 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:29:41,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 14:29:41,007 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:41,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:41,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1320849095, now seen corresponding path program 5 times [2020-09-25 14:29:41,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:41,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095760] [2020-09-25 14:29:41,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:41,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:41,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:41,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:41,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:41,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:41,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:41,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:42,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:42,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:42,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:42,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:42,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:42,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:42,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:42,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:42,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:42,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:45,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:45,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:45,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:46,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:46,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-25 14:29:46,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-09-25 14:29:46,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 14:29:46,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:46,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:46,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:29:46,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 14:29:46,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 14:29:46,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:46,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:46,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:46,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:46,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:46,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:46,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:29:46,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:46,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:46,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:46,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:46,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:46,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:46,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 14:29:46,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:46,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:46,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:46,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:46,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:46,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:46,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:46,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:46,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:46,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:46,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:46,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:46,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:46,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:47,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:48,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:49,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:51,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-25 14:29:51,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-25 14:29:51,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 14:29:51,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:51,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:51,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:29:51,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:29:51,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 14:29:51,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:51,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:51,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:51,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:53,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:53,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 14:29:53,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 14:29:53,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1985 [2020-09-25 14:29:53,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:53,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:53,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:29:53,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:29:53,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 14:29:53,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:53,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:53,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:53,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:53,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:53,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:53,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 14:29:53,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:29:53,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-09-25 14:29:53,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:53,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:53,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:29:53,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:53,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 14:29:53,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:53,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:53,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:53,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:53,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:53,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:53,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:53,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:29:53,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:53,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:53,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:53,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:53,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:29:53,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:53,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 14:29:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:53,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:53,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:53,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:53,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:53,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:29:53,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:53,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:53,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:53,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:53,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:29:53,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:53,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 14:29:53,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:53,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:53,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:53,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:53,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:53,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:29:53,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:53,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:53,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:29:53,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:29:53,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:29:53,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:53,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 14:29:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:53,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:53,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:53,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:53,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking...