/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=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:25:16,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:25:16,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:25:16,484 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:25:16,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:25:16,486 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:25:16,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:25:16,489 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:25:16,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:25:16,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:25:16,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:25:16,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:25:16,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:25:16,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:25:16,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:25:16,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:25:16,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:25:16,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:25:16,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:25:16,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:25:16,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:25:16,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:25:16,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:25:16,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:25:16,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:25:16,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:25:16,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:25:16,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:25:16,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:25:16,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:25:16,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:25:16,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:25:16,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:25:16,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:25:16,520 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:25:16,520 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:25:16,521 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:25:16,521 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:25:16,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:25:16,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:25:16,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:25:16,524 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 12:25:16,577 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:25:16,578 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:25:16,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:25:16,579 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:25:16,579 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:25:16,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:25:16,580 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:25:16,580 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:25:16,580 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:25:16,580 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:25:16,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:25:16,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:25:16,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:25:16,586 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:25:16,587 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:25:16,587 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:25:16,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:25:16,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:25:16,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:25:16,588 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:25:16,588 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:25:16,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:25:16,588 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:25:16,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:25:16,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:25:16,591 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:25:16,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:25:16,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:25:16,591 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:25:16,591 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=0.3;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=0.3;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=0.3;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=0.3;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=0.3;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=0.3;log-additional-information=true; [2020-09-25 12:25:17,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:25:17,087 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:25:17,091 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:25:17,093 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:25:17,093 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:25:17,094 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label51.c [2020-09-25 12:25:17,190 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4450654c5/6013330d20f147bc90f6c71d87deccfc/FLAGa507113ba [2020-09-25 12:25:17,843 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:25:17,844 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label51.c [2020-09-25 12:25:17,860 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4450654c5/6013330d20f147bc90f6c71d87deccfc/FLAGa507113ba [2020-09-25 12:25:18,069 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4450654c5/6013330d20f147bc90f6c71d87deccfc [2020-09-25 12:25:18,083 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:25:18,088 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:25:18,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:25:18,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:25:18,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:25:18,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:25:18" (1/1) ... [2020-09-25 12:25:18,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@112bbb30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:25:18, skipping insertion in model container [2020-09-25 12:25:18,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:25:18" (1/1) ... [2020-09-25 12:25:18,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:25:18,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:25:18,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:25:18,662 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:25:18,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:25:18,964 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:25:18,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:25:18 WrapperNode [2020-09-25 12:25:18,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:25:18,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:25:18,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:25:18,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:25:18,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:25:18" (1/1) ... [2020-09-25 12:25:18,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:25:18" (1/1) ... [2020-09-25 12:25:19,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:25:18" (1/1) ... [2020-09-25 12:25:19,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:25:18" (1/1) ... [2020-09-25 12:25:19,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:25:18" (1/1) ... [2020-09-25 12:25:19,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:25:18" (1/1) ... [2020-09-25 12:25:19,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:25:18" (1/1) ... [2020-09-25 12:25:19,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:25:19,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:25:19,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:25:19,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:25:19,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:25:18" (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 12:25:19,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:25:19,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:25:19,213 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 12:25:19,213 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:25:19,213 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 12:25:19,214 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:25:19,214 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:25:19,214 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 12:25:19,214 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:25:19,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:25:19,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:25:20,570 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:25:20,570 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 12:25:20,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:25:20 BoogieIcfgContainer [2020-09-25 12:25:20,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:25:20,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:25:20,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:25:20,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:25:20,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:25:18" (1/3) ... [2020-09-25 12:25:20,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2566a626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:25:20, skipping insertion in model container [2020-09-25 12:25:20,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:25:18" (2/3) ... [2020-09-25 12:25:20,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2566a626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:25:20, skipping insertion in model container [2020-09-25 12:25:20,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:25:20" (3/3) ... [2020-09-25 12:25:20,590 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label51.c [2020-09-25 12:25:20,602 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:25:20,613 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:25:20,637 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:25:20,671 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:25:20,671 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:25:20,671 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:25:20,671 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:25:20,672 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:25:20,672 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:25:20,672 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:25:20,672 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:25:20,705 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states. [2020-09-25 12:25:20,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-25 12:25:20,727 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:25:20,729 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:25:20,729 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:25:20,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:25:20,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1376443753, now seen corresponding path program 1 times [2020-09-25 12:25:20,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:25:20,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [142353674] [2020-09-25 12:25:20,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:25:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:25:21,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:21,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:21,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:23,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:23,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:26,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:25:26,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-25 12:25:26,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:25:26,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 12:25:26,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:25:26,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:25:26,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:25:26,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 12:25:26,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-09-25 12:25:26,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 12:25:26,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:25:26,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:25:26,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:26,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:25:26,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:25:26,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:25:26,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 12:25:26,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:25:26,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:25:26,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:25:26,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:25:26,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 12:25:26,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:25:26,360 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 12:25:26,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [142353674] [2020-09-25 12:25:26,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:25:26,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 12:25:26,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878766693] [2020-09-25 12:25:26,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 12:25:26,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:25:26,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 12:25:26,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 12:25:26,398 INFO L87 Difference]: Start difference. First operand 527 states. Second operand 4 states. [2020-09-25 12:25:28,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:25:28,821 INFO L93 Difference]: Finished difference Result 1387 states and 1841 transitions. [2020-09-25 12:25:28,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:25:28,823 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 136 [2020-09-25 12:25:28,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:25:28,850 INFO L225 Difference]: With dead ends: 1387 [2020-09-25 12:25:28,851 INFO L226 Difference]: Without dead ends: 779 [2020-09-25 12:25:28,863 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:25:28,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2020-09-25 12:25:28,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 659. [2020-09-25 12:25:28,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2020-09-25 12:25:28,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 807 transitions. [2020-09-25 12:25:28,973 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 807 transitions. Word has length 136 [2020-09-25 12:25:28,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:25:28,974 INFO L479 AbstractCegarLoop]: Abstraction has 659 states and 807 transitions. [2020-09-25 12:25:28,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 12:25:28,974 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 807 transitions. [2020-09-25 12:25:28,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 12:25:28,986 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:25:28,987 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:25:28,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:25:28,987 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:25:28,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:25:28,988 INFO L82 PathProgramCache]: Analyzing trace with hash 685540285, now seen corresponding path program 1 times [2020-09-25 12:25:28,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:25:28,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2070257281] [2020-09-25 12:25:28,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:25:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:25:29,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:29,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:29,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:29,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:30,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:30,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:31,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:33,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:34,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:25:34,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-09-25 12:25:34,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 12:25:34,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 12:25:34,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:25:34,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:25:34,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:25:34,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-09-25 12:25:34,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-09-25 12:25:34,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 12:25:34,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:25:34,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:25:34,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:34,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:25:34,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:25:34,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:25:34,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 12:25:34,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:25:34,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:25:34,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:25:34,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:25:34,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:25:34,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:25:34,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:25:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:25:34,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:34,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:25:34,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:25:34,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:25:34,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 12:25:34,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:25:34,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:25:34,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:25:34,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:25:34,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:25:34,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:25:34,340 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:25:34,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2070257281] [2020-09-25 12:25:34,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:25:34,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 12:25:34,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220671045] [2020-09-25 12:25:34,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 12:25:34,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:25:34,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 12:25:34,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:25:34,346 INFO L87 Difference]: Start difference. First operand 659 states and 807 transitions. Second operand 5 states. [2020-09-25 12:25:36,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:25:36,475 INFO L93 Difference]: Finished difference Result 1648 states and 2113 transitions. [2020-09-25 12:25:36,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 12:25:36,481 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 154 [2020-09-25 12:25:36,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:25:36,492 INFO L225 Difference]: With dead ends: 1648 [2020-09-25 12:25:36,492 INFO L226 Difference]: Without dead ends: 1011 [2020-09-25 12:25:36,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:25:36,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2020-09-25 12:25:36,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 965. [2020-09-25 12:25:36,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-09-25 12:25:36,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1175 transitions. [2020-09-25 12:25:36,560 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1175 transitions. Word has length 154 [2020-09-25 12:25:36,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:25:36,560 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1175 transitions. [2020-09-25 12:25:36,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 12:25:36,561 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1175 transitions. [2020-09-25 12:25:36,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-09-25 12:25:36,567 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:25:36,567 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:25:36,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:25:36,568 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:25:36,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:25:36,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1224055138, now seen corresponding path program 1 times [2020-09-25 12:25:36,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:25:36,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1928840896] [2020-09-25 12:25:36,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:25:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:25:36,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:36,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:37,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:37,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:37,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:40,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:40,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:40,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:41,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:25:41,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-09-25 12:25:41,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 12:25:41,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-25 12:25:41,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:25:41,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:25:41,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 12:25:41,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 12:25:41,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-09-25 12:25:41,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:25:41,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:25:41,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:25:41,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:41,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:25:41,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:25:41,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:25:41,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 12:25:41,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:25:41,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:25:41,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:25:41,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:25:41,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 12:25:41,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:25:42,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:25:42,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:25:42,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:42,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:42,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:25:42,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:25:42,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:25:42,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 12:25:42,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:25:42,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:25:42,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:25:42,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:25:42,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 12:25:42,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:25:42,534 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:25:42,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1928840896] [2020-09-25 12:25:42,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:25:42,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 12:25:42,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422235823] [2020-09-25 12:25:42,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 12:25:42,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:25:42,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 12:25:42,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-09-25 12:25:42,539 INFO L87 Difference]: Start difference. First operand 965 states and 1175 transitions. Second operand 12 states. [2020-09-25 12:25:49,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:25:49,431 INFO L93 Difference]: Finished difference Result 4931 states and 7080 transitions. [2020-09-25 12:25:49,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 12:25:49,432 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 155 [2020-09-25 12:25:49,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:25:49,461 INFO L225 Difference]: With dead ends: 4931 [2020-09-25 12:25:49,461 INFO L226 Difference]: Without dead ends: 3988 [2020-09-25 12:25:49,475 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=152, Invalid=604, Unknown=0, NotChecked=0, Total=756 [2020-09-25 12:25:49,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3988 states. [2020-09-25 12:25:49,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3988 to 3751. [2020-09-25 12:25:49,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3751 states. [2020-09-25 12:25:49,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3751 states to 3751 states and 4935 transitions. [2020-09-25 12:25:49,640 INFO L78 Accepts]: Start accepts. Automaton has 3751 states and 4935 transitions. Word has length 155 [2020-09-25 12:25:49,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:25:49,640 INFO L479 AbstractCegarLoop]: Abstraction has 3751 states and 4935 transitions. [2020-09-25 12:25:49,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 12:25:49,640 INFO L276 IsEmpty]: Start isEmpty. Operand 3751 states and 4935 transitions. [2020-09-25 12:25:49,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-09-25 12:25:49,665 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:25:49,666 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:25:49,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:25:49,666 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:25:49,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:25:49,667 INFO L82 PathProgramCache]: Analyzing trace with hash 494480843, now seen corresponding path program 1 times [2020-09-25 12:25:49,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:25:49,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1291775144] [2020-09-25 12:25:49,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:25:49,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:25:49,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:49,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:50,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:50,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:52,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:54,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:54,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:25:54,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 12:25:54,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 12:25:54,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 12:25:54,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:25:54,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:25:54,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:25:54,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-25 12:25:54,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 12:25:54,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:25:54,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:25:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:25:54,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:54,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:25:54,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:25:54,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:25:54,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 12:25:54,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:25:54,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:25:54,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:25:54,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:25:54,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:25:54,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:25:54,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:25:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:25:54,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:55,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:25:55,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-25 12:25:55,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:25:55,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 12:25:55,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:25:55,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:25:55,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:25:55,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:25:55,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 12:25:55,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:25:55,376 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 35 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:25:55,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1291775144] [2020-09-25 12:25:55,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:25:55,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 12:25:55,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221818140] [2020-09-25 12:25:55,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 12:25:55,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:25:55,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 12:25:55,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:25:55,380 INFO L87 Difference]: Start difference. First operand 3751 states and 4935 transitions. Second operand 9 states. [2020-09-25 12:25:59,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:25:59,278 INFO L93 Difference]: Finished difference Result 9311 states and 12854 transitions. [2020-09-25 12:25:59,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 12:25:59,278 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 182 [2020-09-25 12:25:59,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:25:59,316 INFO L225 Difference]: With dead ends: 9311 [2020-09-25 12:25:59,316 INFO L226 Difference]: Without dead ends: 4897 [2020-09-25 12:25:59,350 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2020-09-25 12:25:59,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4897 states. [2020-09-25 12:25:59,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4897 to 4877. [2020-09-25 12:25:59,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4877 states. [2020-09-25 12:25:59,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4877 states to 4877 states and 6507 transitions. [2020-09-25 12:25:59,550 INFO L78 Accepts]: Start accepts. Automaton has 4877 states and 6507 transitions. Word has length 182 [2020-09-25 12:25:59,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:25:59,550 INFO L479 AbstractCegarLoop]: Abstraction has 4877 states and 6507 transitions. [2020-09-25 12:25:59,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 12:25:59,551 INFO L276 IsEmpty]: Start isEmpty. Operand 4877 states and 6507 transitions. [2020-09-25 12:25:59,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-25 12:25:59,583 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:25:59,584 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:25:59,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:25:59,584 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:25:59,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:25:59,585 INFO L82 PathProgramCache]: Analyzing trace with hash 504191434, now seen corresponding path program 1 times [2020-09-25 12:25:59,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:25:59,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1487628904] [2020-09-25 12:25:59,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:25:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:25:59,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:59,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:59,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:26:00,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:26:01,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:26:04,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:26:04,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-09-25 12:26:04,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:26:04,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 12:26:04,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:26:04,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:26:04,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:26:04,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-25 12:26:04,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 12:26:04,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:26:04,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:26:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:26:04,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:26:04,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:26:04,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:26:04,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:26:04,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 12:26:04,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:26:04,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:26:04,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:26:04,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:26:04,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:26:04,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 12:26:04,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:26:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:26:04,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:26:04,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:26:04,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 12:26:04,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:26:04,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:26:04,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:26:04,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:26:04,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:26:04,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:26:04,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:26:04,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:26:04,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-25 12:26:04,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat