/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 SequenceOfStatements --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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem06_label10.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 07:02:23,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 07:02:23,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 07:02:23,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 07:02:23,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 07:02:23,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 07:02:23,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 07:02:23,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 07:02:23,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 07:02:23,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 07:02:23,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 07:02:23,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 07:02:23,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 07:02:23,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 07:02:23,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 07:02:23,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 07:02:23,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 07:02:23,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 07:02:23,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 07:02:23,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 07:02:23,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 07:02:23,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 07:02:23,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 07:02:23,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 07:02:23,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 07:02:23,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 07:02:23,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 07:02:23,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 07:02:23,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 07:02:23,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 07:02:23,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 07:02:23,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 07:02:23,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 07:02:23,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 07:02:23,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 07:02:23,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 07:02:23,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 07:02:23,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 07:02:23,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 07:02:23,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 07:02:23,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 07:02:23,651 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 [2020-10-13 07:02:23,687 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 07:02:23,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 07:02:23,689 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 07:02:23,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 07:02:23,690 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 07:02:23,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 07:02:23,691 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 07:02:23,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 07:02:23,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 07:02:23,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 07:02:23,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 07:02:23,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 07:02:23,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 07:02:23,693 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 07:02:23,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 07:02:23,694 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 07:02:23,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 07:02:23,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 07:02:23,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 07:02:23,695 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 07:02:23,695 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 07:02:23,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 07:02:23,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 07:02:23,696 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 07:02:23,696 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 07:02:23,696 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 07:02:23,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 07:02:23,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 07:02:23,696 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 07:02:23,697 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 -> SequenceOfStatements 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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 07:02:23,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 07:02:24,003 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 07:02:24,006 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 07:02:24,008 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 07:02:24,008 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 07:02:24,009 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem06_label10.c [2020-10-13 07:02:24,066 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/607cf9ba2/80ea8726026340c9807521db7f78f7ea/FLAGe7957ed63 [2020-10-13 07:02:24,919 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 07:02:24,920 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem06_label10.c [2020-10-13 07:02:24,962 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/607cf9ba2/80ea8726026340c9807521db7f78f7ea/FLAGe7957ed63 [2020-10-13 07:02:25,388 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/607cf9ba2/80ea8726026340c9807521db7f78f7ea [2020-10-13 07:02:25,396 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 07:02:25,398 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 07:02:25,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 07:02:25,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 07:02:25,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 07:02:25,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:02:25" (1/1) ... [2020-10-13 07:02:25,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31a2ded and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:02:25, skipping insertion in model container [2020-10-13 07:02:25,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:02:25" (1/1) ... [2020-10-13 07:02:25,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 07:02:25,652 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 07:02:27,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 07:02:27,707 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 07:02:28,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 07:02:28,847 INFO L208 MainTranslator]: Completed translation [2020-10-13 07:02:28,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:02:28 WrapperNode [2020-10-13 07:02:28,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 07:02:28,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 07:02:28,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 07:02:28,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 07:02:28,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:02:28" (1/1) ... [2020-10-13 07:02:28,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:02:28" (1/1) ... [2020-10-13 07:02:28,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:02:28" (1/1) ... [2020-10-13 07:02:28,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:02:28" (1/1) ... [2020-10-13 07:02:29,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:02:28" (1/1) ... [2020-10-13 07:02:29,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:02:28" (1/1) ... [2020-10-13 07:02:29,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:02:28" (1/1) ... [2020-10-13 07:02:29,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 07:02:29,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 07:02:29,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 07:02:29,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 07:02:29,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:02:28" (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 [2020-10-13 07:02:29,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 07:02:29,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 07:02:29,273 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 07:02:29,274 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-13 07:02:29,274 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-13 07:02:29,274 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-13 07:02:29,274 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2020-10-13 07:02:29,275 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 07:02:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 07:02:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-13 07:02:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-13 07:02:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-13 07:02:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2020-10-13 07:02:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 07:02:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 07:02:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 07:02:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 07:02:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 07:02:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 07:02:36,085 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 07:02:36,086 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 07:02:36,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:02:36 BoogieIcfgContainer [2020-10-13 07:02:36,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 07:02:36,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 07:02:36,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 07:02:36,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 07:02:36,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:02:25" (1/3) ... [2020-10-13 07:02:36,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@162f1df0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:02:36, skipping insertion in model container [2020-10-13 07:02:36,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:02:28" (2/3) ... [2020-10-13 07:02:36,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@162f1df0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:02:36, skipping insertion in model container [2020-10-13 07:02:36,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:02:36" (3/3) ... [2020-10-13 07:02:36,110 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem06_label10.c [2020-10-13 07:02:36,120 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 07:02:36,128 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 07:02:36,142 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 07:02:36,169 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 07:02:36,169 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 07:02:36,170 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 07:02:36,170 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 07:02:36,170 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 07:02:36,170 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 07:02:36,170 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 07:02:36,170 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 07:02:36,209 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states. [2020-10-13 07:02:36,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 958 [2020-10-13 07:02:36,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 07:02:36,265 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 07:02:36,266 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 07:02:36,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 07:02:36,272 INFO L82 PathProgramCache]: Analyzing trace with hash 752382048, now seen corresponding path program 1 times [2020-10-13 07:02:36,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 07:02:36,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [899056565] [2020-10-13 07:02:36,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 07:02:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:02:37,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:02:40,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:02:42,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:02:42,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 973 [2020-10-13 07:02:42,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 07:02:42,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5227 [2020-10-13 07:02:42,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:02:42,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 07:02:42,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 07:02:42,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 769 [2020-10-13 07:02:42,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 07:02:49,392 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2020-10-13 07:02:49,674 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-13 07:02:49,949 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 86 [2020-10-13 07:02:50,199 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 86 [2020-10-13 07:02:50,517 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 88 [2020-10-13 07:02:50,835 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 83 [2020-10-13 07:02:51,137 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 79 [2020-10-13 07:02:51,430 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 77 [2020-10-13 07:02:51,714 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 71 [2020-10-13 07:02:52,058 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 72 [2020-10-13 07:02:52,385 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 72 [2020-10-13 07:02:52,685 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 62 [2020-10-13 07:02:53,072 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 07:02:53,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 07:02:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:02:53,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:02:53,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:02:53,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 07:02:53,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:02:53,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 07:02:53,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:02:53,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 07:02:53,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 07:02:53,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 07:02:53,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:03:06,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 07:03:06,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [899056565] [2020-10-13 07:03:06,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 07:03:06,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-13 07:03:06,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632336087] [2020-10-13 07:03:06,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 07:03:06,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 07:03:06,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 07:03:06,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2020-10-13 07:03:06,587 INFO L87 Difference]: Start difference. First operand 1315 states. Second operand 18 states. [2020-10-13 07:03:07,046 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 07:03:07,851 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 186 [2020-10-13 07:03:08,626 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 184 [2020-10-13 07:03:09,503 WARN L193 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 192 [2020-10-13 07:03:13,678 WARN L193 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 191 [2020-10-13 07:03:17,235 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 224 DAG size of output: 190 [2020-10-13 07:03:19,797 WARN L193 SmtUtils]: Spent 693.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 182 [2020-10-13 07:03:20,650 WARN L193 SmtUtils]: Spent 759.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 188 [2020-10-13 07:03:21,769 WARN L193 SmtUtils]: Spent 761.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 187 [2020-10-13 07:03:31,479 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 179 [2020-10-13 07:03:32,362 WARN L193 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 184 [2020-10-13 07:03:35,496 WARN L193 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 178 [2020-10-13 07:03:43,035 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 173 [2020-10-13 07:03:43,904 WARN L193 SmtUtils]: Spent 760.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 177 [2020-10-13 07:03:46,509 WARN L193 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 175 [2020-10-13 07:03:59,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 07:03:59,123 INFO L93 Difference]: Finished difference Result 3396 states and 6359 transitions. [2020-10-13 07:03:59,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 07:03:59,133 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 957 [2020-10-13 07:03:59,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 07:03:59,173 INFO L225 Difference]: With dead ends: 3396 [2020-10-13 07:03:59,173 INFO L226 Difference]: Without dead ends: 2019 [2020-10-13 07:03:59,186 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=155, Invalid=901, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 07:03:59,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2019 states. [2020-10-13 07:03:59,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2019 to 2019. [2020-10-13 07:03:59,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2019 states. [2020-10-13 07:03:59,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2019 states to 2019 states and 3053 transitions. [2020-10-13 07:03:59,368 INFO L78 Accepts]: Start accepts. Automaton has 2019 states and 3053 transitions. Word has length 957 [2020-10-13 07:03:59,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 07:03:59,371 INFO L479 AbstractCegarLoop]: Abstraction has 2019 states and 3053 transitions. [2020-10-13 07:03:59,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 07:03:59,371 INFO L276 IsEmpty]: Start isEmpty. Operand 2019 states and 3053 transitions. [2020-10-13 07:03:59,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1028 [2020-10-13 07:03:59,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 07:03:59,417 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 07:03:59,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 07:03:59,418 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 07:03:59,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 07:03:59,419 INFO L82 PathProgramCache]: Analyzing trace with hash -456106643, now seen corresponding path program 1 times [2020-10-13 07:03:59,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 07:03:59,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [648749124] [2020-10-13 07:03:59,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 07:03:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:04:00,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:04:00,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:04:04,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:04:04,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1045 [2020-10-13 07:04:04,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 07:04:04,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5087 [2020-10-13 07:04:04,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:04:04,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 07:04:04,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 07:04:04,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 07:04:04,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 07:04:05,454 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 07:04:05,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 07:04:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:04:05,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:04:05,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:04:05,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 07:04:05,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:04:05,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 07:04:05,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:04:05,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 07:04:05,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 07:04:05,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 07:04:05,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:04:05,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 07:04:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:04:05,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:04:05,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:04:05,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 07:04:05,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:04:05,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-10-13 07:04:05,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:04:05,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 07:04:05,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 07:04:05,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 07:04:05,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:04:07,559 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 07:04:07,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [648749124] [2020-10-13 07:04:07,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 07:04:07,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 07:04:07,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523281291] [2020-10-13 07:04:07,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 07:04:07,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 07:04:07,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 07:04:07,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-13 07:04:07,564 INFO L87 Difference]: Start difference. First operand 2019 states and 3053 transitions. Second operand 8 states. [2020-10-13 07:04:07,742 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 07:04:09,163 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-13 07:04:11,485 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 07:04:37,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 07:04:37,643 INFO L93 Difference]: Finished difference Result 5640 states and 9669 transitions. [2020-10-13 07:04:37,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 07:04:37,646 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1027 [2020-10-13 07:04:37,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 07:04:37,670 INFO L225 Difference]: With dead ends: 5640 [2020-10-13 07:04:37,671 INFO L226 Difference]: Without dead ends: 4381 [2020-10-13 07:04:37,675 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-13 07:04:37,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4381 states. [2020-10-13 07:04:37,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4381 to 4284. [2020-10-13 07:04:37,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4284 states. [2020-10-13 07:04:37,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4284 states to 4284 states and 6542 transitions. [2020-10-13 07:04:37,793 INFO L78 Accepts]: Start accepts. Automaton has 4284 states and 6542 transitions. Word has length 1027 [2020-10-13 07:04:37,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 07:04:37,793 INFO L479 AbstractCegarLoop]: Abstraction has 4284 states and 6542 transitions. [2020-10-13 07:04:37,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 07:04:37,794 INFO L276 IsEmpty]: Start isEmpty. Operand 4284 states and 6542 transitions. [2020-10-13 07:04:37,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1080 [2020-10-13 07:04:37,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 07:04:37,812 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 07:04:37,813 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 07:04:37,813 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 07:04:37,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 07:04:37,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1270519818, now seen corresponding path program 1 times [2020-10-13 07:04:37,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 07:04:37,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [261736715] [2020-10-13 07:04:37,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 07:04:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:04:38,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:04:39,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:04:43,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:04:43,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1097 [2020-10-13 07:04:43,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 07:04:43,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5103 [2020-10-13 07:04:43,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:04:43,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 07:04:43,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 07:04:43,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 552 [2020-10-13 07:04:43,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:04:45,244 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-10-13 07:04:45,399 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2020-10-13 07:04:45,577 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2020-10-13 07:04:45,800 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2020-10-13 07:04:45,996 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 55 [2020-10-13 07:04:46,192 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-13 07:04:46,399 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 47 [2020-10-13 07:04:46,562 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 07:04:46,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 07:04:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:04:46,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:04:46,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:04:46,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 07:04:46,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:04:46,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 07:04:46,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:04:46,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 07:04:46,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 07:04:46,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 07:04:46,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:04:46,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 07:04:46,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:04:46,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:04:47,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:04:47,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 07:04:47,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:04:47,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 376 [2020-10-13 07:04:47,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:04:47,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 07:04:47,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 07:04:47,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-13 07:04:47,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:04:55,965 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 2 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 07:04:55,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [261736715] [2020-10-13 07:04:55,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 07:04:55,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-13 07:04:55,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616146353] [2020-10-13 07:04:55,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 07:04:55,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 07:04:55,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 07:04:55,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2020-10-13 07:04:55,968 INFO L87 Difference]: Start difference. First operand 4284 states and 6542 transitions. Second operand 19 states. [2020-10-13 07:04:56,222 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-13 07:04:58,032 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2020-10-13 07:04:58,291 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2020-10-13 07:04:58,629 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2020-10-13 07:04:59,307 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 169 [2020-10-13 07:05:00,036 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 177 [2020-10-13 07:05:01,393 WARN L193 SmtUtils]: Spent 779.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 176 [2020-10-13 07:05:04,213 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 175 [2020-10-13 07:05:13,009 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 165 [2020-10-13 07:05:13,800 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 179 [2020-10-13 07:05:15,123 WARN L193 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 175 [2020-10-13 07:05:24,174 WARN L193 SmtUtils]: Spent 997.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 172 [2020-10-13 07:05:25,582 WARN L193 SmtUtils]: Spent 981.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 168 [2020-10-13 07:05:48,675 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-13 07:05:48,918 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2020-10-13 07:05:49,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 07:05:49,000 INFO L93 Difference]: Finished difference Result 11818 states and 19148 transitions. [2020-10-13 07:05:49,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 07:05:49,003 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 1079 [2020-10-13 07:05:49,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 07:05:49,049 INFO L225 Difference]: With dead ends: 11818 [2020-10-13 07:05:49,049 INFO L226 Difference]: Without dead ends: 8294 [2020-10-13 07:05:49,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=263, Invalid=927, Unknown=0, NotChecked=0, Total=1190 [2020-10-13 07:05:49,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8294 states. [2020-10-13 07:05:49,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8294 to 8200. [2020-10-13 07:05:49,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8200 states. [2020-10-13 07:05:49,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8200 states to 8200 states and 12635 transitions. [2020-10-13 07:05:49,313 INFO L78 Accepts]: Start accepts. Automaton has 8200 states and 12635 transitions. Word has length 1079 [2020-10-13 07:05:49,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 07:05:49,315 INFO L479 AbstractCegarLoop]: Abstraction has 8200 states and 12635 transitions. [2020-10-13 07:05:49,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 07:05:49,315 INFO L276 IsEmpty]: Start isEmpty. Operand 8200 states and 12635 transitions. [2020-10-13 07:05:49,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1105 [2020-10-13 07:05:49,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 07:05:49,351 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 07:05:49,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 07:05:49,351 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 07:05:49,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 07:05:49,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1337588995, now seen corresponding path program 1 times [2020-10-13 07:05:49,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 07:05:49,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1168105738] [2020-10-13 07:05:49,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 07:05:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:05:49,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:05:50,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:05:53,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:05:54,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:05:54,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1124 [2020-10-13 07:05:54,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 07:05:54,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-13 07:05:54,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:05:54,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-13 07:05:54,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 07:05:54,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 891 [2020-10-13 07:05:54,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:05:59,398 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2020-10-13 07:05:59,621 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-10-13 07:05:59,872 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-10-13 07:06:00,119 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-10-13 07:06:00,356 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-10-13 07:06:00,592 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-10-13 07:06:00,849 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2020-10-13 07:06:01,099 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2020-10-13 07:06:01,345 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 66 [2020-10-13 07:06:01,630 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2020-10-13 07:06:01,959 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 62 [2020-10-13 07:06:02,259 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 57 [2020-10-13 07:06:02,448 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 39 [2020-10-13 07:06:02,640 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 39 [2020-10-13 07:06:02,833 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 39 [2020-10-13 07:06:03,021 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 07:06:03,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 07:06:03,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:06:03,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:06:03,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:06:03,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 07:06:03,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:06:03,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 07:06:03,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:06:03,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 07:06:03,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 07:06:03,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 07:06:03,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:06:03,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 07:06:03,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:06:03,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:06:03,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:06:03,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 07:06:03,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:06:03,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-13 07:06:03,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:06:03,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 07:06:03,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 07:06:03,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-13 07:06:03,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:06:03,986 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-10-13 07:06:04,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-13 07:06:04,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:06:04,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:06:04,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:06:04,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 07:06:04,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:06:04,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-13 07:06:04,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:06:04,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 07:06:04,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 07:06:04,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 07:06:04,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:06:04,591 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81