/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/Problem03_label54.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:25:57,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:25:57,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:25:57,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:25:57,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:25:57,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:25:57,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:25:57,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:25:57,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:25:57,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:25:57,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:25:57,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:25:57,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:25:57,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:25:57,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:25:57,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:25:57,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:25:57,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:25:57,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:25:57,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:25:57,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:25:57,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:25:57,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:25:57,551 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:25:57,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:25:57,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:25:57,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:25:57,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:25:57,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:25:57,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:25:57,557 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:25:57,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:25:57,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:25:57,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:25:57,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:25:57,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:25:57,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:25:57,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:25:57,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:25:57,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:25:57,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:25:57,564 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 06:25:57,587 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:25:57,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:25:57,589 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:25:57,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:25:57,589 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:25:57,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:25:57,590 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:25:57,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:25:57,590 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:25:57,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:25:57,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:25:57,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:25:57,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:25:57,591 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:25:57,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:25:57,591 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:25:57,592 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:25:57,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:25:57,592 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:25:57,592 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:25:57,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:25:57,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:25:57,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:25:57,593 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:25:57,593 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:25:57,593 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:25:57,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:25:57,594 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:25:57,594 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:25:57,594 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 06:25:57,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:25:57,923 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:25:57,926 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:25:57,928 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:25:57,928 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:25:57,929 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label54.c [2020-10-13 06:25:58,016 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d7a141a2/d51f27277753476f8d815b04f5f07730/FLAGfdd46b511 [2020-10-13 06:25:58,723 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:25:58,724 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem03_label54.c [2020-10-13 06:25:58,742 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d7a141a2/d51f27277753476f8d815b04f5f07730/FLAGfdd46b511 [2020-10-13 06:25:58,861 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d7a141a2/d51f27277753476f8d815b04f5f07730 [2020-10-13 06:25:58,871 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:25:58,873 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:25:58,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:25:58,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:25:58,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:25:58,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:25:58" (1/1) ... [2020-10-13 06:25:58,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20fc4f96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:25:58, skipping insertion in model container [2020-10-13 06:25:58,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:25:58" (1/1) ... [2020-10-13 06:25:58,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:25:58,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:25:59,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:25:59,730 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:25:59,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:26:00,022 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:26:00,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:26:00 WrapperNode [2020-10-13 06:26:00,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:26:00,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:26:00,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:26:00,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:26:00,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:26:00" (1/1) ... [2020-10-13 06:26:00,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:26:00" (1/1) ... [2020-10-13 06:26:00,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:26:00" (1/1) ... [2020-10-13 06:26:00,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:26:00" (1/1) ... [2020-10-13 06:26:00,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:26:00" (1/1) ... [2020-10-13 06:26:00,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:26:00" (1/1) ... [2020-10-13 06:26:00,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:26:00" (1/1) ... [2020-10-13 06:26:00,171 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:26:00,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:26:00,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:26:00,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:26:00,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:26:00" (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 06:26:00,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:26:00,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:26:00,245 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:26:00,245 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:26:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:26:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:26:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:26:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:26:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:26:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:26:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:26:02,245 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:26:02,245 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:26:02,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:26:02 BoogieIcfgContainer [2020-10-13 06:26:02,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:26:02,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:26:02,253 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:26:02,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:26:02,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:25:58" (1/3) ... [2020-10-13 06:26:02,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2813c160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:26:02, skipping insertion in model container [2020-10-13 06:26:02,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:26:00" (2/3) ... [2020-10-13 06:26:02,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2813c160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:26:02, skipping insertion in model container [2020-10-13 06:26:02,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:26:02" (3/3) ... [2020-10-13 06:26:02,261 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem03_label54.c [2020-10-13 06:26:02,271 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:26:02,279 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:26:02,293 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:26:02,320 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:26:02,320 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:26:02,320 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:26:02,321 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:26:02,321 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:26:02,321 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:26:02,321 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:26:02,321 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:26:02,346 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states. [2020-10-13 06:26:02,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-13 06:26:02,363 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:26:02,365 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] [2020-10-13 06:26:02,365 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:26:02,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:26:02,372 INFO L82 PathProgramCache]: Analyzing trace with hash -629671171, now seen corresponding path program 1 times [2020-10-13 06:26:02,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:26:02,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [40648212] [2020-10-13 06:26:02,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:26:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:26:02,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:26:03,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:26:06,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:26:06,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 06:26:06,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:26:06,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3661 [2020-10-13 06:26:06,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:26:06,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 06:26:06,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:26:06,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-13 06:26:06,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:26:07,288 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 60 [2020-10-13 06:26:08,190 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 06:26:08,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:26:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:26:08,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:26:08,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:26:08,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:26:08,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:26:08,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 06:26:08,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:26:08,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:26:08,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:26:08,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:26:08,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:26:08,859 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 06:26:08,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [40648212] [2020-10-13 06:26:08,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:26:08,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 06:26:08,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011046508] [2020-10-13 06:26:08,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:26:08,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:26:08,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:26:08,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:26:08,882 INFO L87 Difference]: Start difference. First operand 311 states. Second operand 14 states. [2020-10-13 06:26:09,310 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-13 06:26:09,948 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 166 [2020-10-13 06:26:10,529 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 166 [2020-10-13 06:26:11,252 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 174 [2020-10-13 06:26:12,239 WARN L193 SmtUtils]: Spent 885.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 173 [2020-10-13 06:26:13,501 WARN L193 SmtUtils]: Spent 944.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 172 [2020-10-13 06:26:14,802 WARN L193 SmtUtils]: Spent 847.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 171 [2020-10-13 06:26:17,597 WARN L193 SmtUtils]: Spent 854.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 170 [2020-10-13 06:26:18,501 WARN L193 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 168 [2020-10-13 06:26:20,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:26:20,864 INFO L93 Difference]: Finished difference Result 737 states and 1287 transitions. [2020-10-13 06:26:20,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:26:20,866 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 172 [2020-10-13 06:26:20,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:26:20,884 INFO L225 Difference]: With dead ends: 737 [2020-10-13 06:26:20,884 INFO L226 Difference]: Without dead ends: 364 [2020-10-13 06:26:20,893 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:26:20,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2020-10-13 06:26:20,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2020-10-13 06:26:20,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2020-10-13 06:26:20,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 525 transitions. [2020-10-13 06:26:20,986 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 525 transitions. Word has length 172 [2020-10-13 06:26:20,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:26:20,989 INFO L479 AbstractCegarLoop]: Abstraction has 364 states and 525 transitions. [2020-10-13 06:26:20,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:26:20,989 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 525 transitions. [2020-10-13 06:26:21,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-13 06:26:21,004 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:26:21,005 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 06:26:21,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:26:21,005 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:26:21,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:26:21,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1493322314, now seen corresponding path program 1 times [2020-10-13 06:26:21,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:26:21,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [316072361] [2020-10-13 06:26:21,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:26:21,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:26:21,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:26:21,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:26:22,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:26:25,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:26:25,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-13 06:26:25,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:26:25,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4565 [2020-10-13 06:26:25,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:26:25,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 06:26:25,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:26:25,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-13 06:26:25,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-13 06:26:26,939 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 76 [2020-10-13 06:26:27,196 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 83 [2020-10-13 06:26:27,383 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 76 [2020-10-13 06:26:27,541 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2020-10-13 06:26:27,680 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 55 [2020-10-13 06:26:27,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:26:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:26:27,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:26:27,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:26:27,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:26:27,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:26:27,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 06:26:27,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:26:27,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:26:27,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:26:27,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:26:27,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:26:28,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:26:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:26:28,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:26:28,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:26:28,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:26:28,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:26:28,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-13 06:26:28,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:26:28,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 06:26:28,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:26:28,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:26:28,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 06:26:28,363 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-10-13 06:26:28,771 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 111 [2020-10-13 06:26:29,345 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:26:29,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [316072361] [2020-10-13 06:26:29,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:26:29,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-13 06:26:29,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175725029] [2020-10-13 06:26:29,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 06:26:29,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:26:29,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 06:26:29,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2020-10-13 06:26:29,349 INFO L87 Difference]: Start difference. First operand 364 states and 525 transitions. Second operand 16 states. [2020-10-13 06:26:29,586 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-13 06:26:30,123 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 85 [2020-10-13 06:26:30,410 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2020-10-13 06:26:30,772 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 91 [2020-10-13 06:26:31,342 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 180 [2020-10-13 06:26:32,029 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 200 [2020-10-13 06:26:33,164 WARN L193 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 197 [2020-10-13 06:26:33,881 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 89 [2020-10-13 06:26:34,052 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 42 [2020-10-13 06:26:35,629 WARN L193 SmtUtils]: Spent 908.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 194 [2020-10-13 06:26:38,318 WARN L193 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 191 [2020-10-13 06:26:41,789 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 188 [2020-10-13 06:26:42,868 WARN L193 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 184 [2020-10-13 06:26:47,094 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 151 [2020-10-13 06:26:51,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:26:51,128 INFO L93 Difference]: Finished difference Result 1219 states and 1991 transitions. [2020-10-13 06:26:51,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 06:26:51,129 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 183 [2020-10-13 06:26:51,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:26:51,141 INFO L225 Difference]: With dead ends: 1219 [2020-10-13 06:26:51,141 INFO L226 Difference]: Without dead ends: 976 [2020-10-13 06:26:51,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=230, Invalid=640, Unknown=0, NotChecked=0, Total=870 [2020-10-13 06:26:51,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2020-10-13 06:26:51,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 958. [2020-10-13 06:26:51,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 958 states. [2020-10-13 06:26:51,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1326 transitions. [2020-10-13 06:26:51,207 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1326 transitions. Word has length 183 [2020-10-13 06:26:51,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:26:51,208 INFO L479 AbstractCegarLoop]: Abstraction has 958 states and 1326 transitions. [2020-10-13 06:26:51,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 06:26:51,208 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1326 transitions. [2020-10-13 06:26:51,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-10-13 06:26:51,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:26:51,216 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 06:26:51,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:26:51,217 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:26:51,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:26:51,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1751284738, now seen corresponding path program 1 times [2020-10-13 06:26:51,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:26:51,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521192663] [2020-10-13 06:26:51,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:26:51,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:26:51,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:26:51,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:26:53,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:26:53,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-10-13 06:26:53,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:26:53,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1848 [2020-10-13 06:26:53,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:26:53,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:26:53,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-13 06:26:53,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-13 06:26:53,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:26:53,401 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 06:26:53,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:26:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:26:53,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:26:53,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:26:53,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:26:53,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:26:53,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:26:53,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:26:53,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:26:53,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:26:53,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:26:53,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:26:53,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:26:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:26:53,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:26:53,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:26:53,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 06:26:53,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:26:53,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 06:26:53,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:26:53,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:26:53,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:26:53,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 06:26:53,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:26:53,654 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:26:53,655 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [521192663] [2020-10-13 06:26:53,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:26:53,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:26:53,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078005295] [2020-10-13 06:26:53,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:26:53,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:26:53,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:26:53,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:26:53,658 INFO L87 Difference]: Start difference. First operand 958 states and 1326 transitions. Second operand 6 states. [2020-10-13 06:26:54,048 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 06:26:54,528 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 06:26:57,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:26:57,738 INFO L93 Difference]: Finished difference Result 3085 states and 4588 transitions. [2020-10-13 06:26:57,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 06:26:57,740 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 193 [2020-10-13 06:26:57,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:26:57,760 INFO L225 Difference]: With dead ends: 3085 [2020-10-13 06:26:57,760 INFO L226 Difference]: Without dead ends: 2248 [2020-10-13 06:26:57,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:26:57,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2248 states. [2020-10-13 06:26:57,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2248 to 2245. [2020-10-13 06:26:57,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2245 states. [2020-10-13 06:26:57,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2245 states to 2245 states and 3074 transitions. [2020-10-13 06:26:57,880 INFO L78 Accepts]: Start accepts. Automaton has 2245 states and 3074 transitions. Word has length 193 [2020-10-13 06:26:57,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:26:57,882 INFO L479 AbstractCegarLoop]: Abstraction has 2245 states and 3074 transitions. [2020-10-13 06:26:57,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:26:57,882 INFO L276 IsEmpty]: Start isEmpty. Operand 2245 states and 3074 transitions. [2020-10-13 06:26:57,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-10-13 06:26:57,891 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:26:57,892 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:26:57,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:26:57,892 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:26:57,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:26:57,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1838685050, now seen corresponding path program 1 times [2020-10-13 06:26:57,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:26:57,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1794099494] [2020-10-13 06:26:57,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:26:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:26:58,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:26:58,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:26:59,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:02,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:02,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-13 06:27:02,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:27:02,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4252 [2020-10-13 06:27:02,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:02,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:27:02,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-13 06:27:02,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 06:27:02,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:27:02,425 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 06:27:02,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:27:02,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:02,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:02,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:02,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:27:02,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:27:02,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:27:02,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:02,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:27:02,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:27:02,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:27:02,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:27:02,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:27:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:02,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:02,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:02,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 06:27:02,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:27:02,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 06:27:02,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:02,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:27:02,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:27:02,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 06:27:02,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:27:02,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 06:27:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:02,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:02,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:02,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 06:27:02,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:27:02,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-13 06:27:02,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:02,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:27:02,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:27:02,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:27:02,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:27:02,977 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:27:02,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1794099494] [2020-10-13 06:27:02,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:27:02,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:27:02,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909700205] [2020-10-13 06:27:02,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:27:02,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:27:02,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:27:02,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:27:02,980 INFO L87 Difference]: Start difference. First operand 2245 states and 3074 transitions. Second operand 7 states. [2020-10-13 06:27:03,292 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 06:27:04,260 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 06:27:06,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:27:06,365 INFO L93 Difference]: Finished difference Result 5056 states and 8049 transitions. [2020-10-13 06:27:06,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 06:27:06,366 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 238 [2020-10-13 06:27:06,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:27:06,397 INFO L225 Difference]: With dead ends: 5056 [2020-10-13 06:27:06,398 INFO L226 Difference]: Without dead ends: 3717 [2020-10-13 06:27:06,406 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:27:06,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3717 states. [2020-10-13 06:27:06,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3717 to 3584. [2020-10-13 06:27:06,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3584 states. [2020-10-13 06:27:06,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3584 states to 3584 states and 4989 transitions. [2020-10-13 06:27:06,582 INFO L78 Accepts]: Start accepts. Automaton has 3584 states and 4989 transitions. Word has length 238 [2020-10-13 06:27:06,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:27:06,583 INFO L479 AbstractCegarLoop]: Abstraction has 3584 states and 4989 transitions. [2020-10-13 06:27:06,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:27:06,583 INFO L276 IsEmpty]: Start isEmpty. Operand 3584 states and 4989 transitions. [2020-10-13 06:27:06,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-10-13 06:27:06,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:27:06,591 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:27:06,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:27:06,592 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:27:06,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:27:06,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1905467661, now seen corresponding path program 1 times [2020-10-13 06:27:06,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:27:06,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1186438410] [2020-10-13 06:27:06,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:27:06,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:06,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:06,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:09,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:11,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:11,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 286 [2020-10-13 06:27:11,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:27:11,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5085 [2020-10-13 06:27:11,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:11,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:27:11,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 06:27:11,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 06:27:11,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:27:11,905 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 06:27:11,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:27:11,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:11,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:11,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:11,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:27:11,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:27:11,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:27:11,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:11,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:27:11,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:27:11,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:27:11,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:27:11,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:27:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:11,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:12,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:12,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 06:27:12,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:27:12,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:27:12,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:12,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:27:12,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:27:12,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:27:12,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:27:12,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 06:27:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:12,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:12,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:12,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 06:27:12,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:27:12,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 06:27:12,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:12,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:27:12,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:27:12,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-13 06:27:12,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:27:12,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-13 06:27:12,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:12,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:12,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:12,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 06:27:12,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:27:12,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 06:27:12,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:12,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:27:12,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:27:12,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 06:27:12,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:27:12,232 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 136 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-13 06:27:12,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1186438410] [2020-10-13 06:27:12,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:27:12,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:27:12,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315946177] [2020-10-13 06:27:12,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:27:12,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:27:12,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:27:12,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:27:12,234 INFO L87 Difference]: Start difference. First operand 3584 states and 4989 transitions. Second operand 7 states. [2020-10-13 06:27:12,376 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 06:27:13,111 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 06:27:15,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:27:15,218 INFO L93 Difference]: Finished difference Result 7176 states and 10243 transitions. [2020-10-13 06:27:15,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 06:27:15,219 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 272 [2020-10-13 06:27:15,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:27:15,239 INFO L225 Difference]: With dead ends: 7176 [2020-10-13 06:27:15,240 INFO L226 Difference]: Without dead ends: 3713 [2020-10-13 06:27:15,254 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:27:15,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3713 states. [2020-10-13 06:27:15,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3713 to 3638. [2020-10-13 06:27:15,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3638 states. [2020-10-13 06:27:15,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 4737 transitions. [2020-10-13 06:27:15,379 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 4737 transitions. Word has length 272 [2020-10-13 06:27:15,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:27:15,379 INFO L479 AbstractCegarLoop]: Abstraction has 3638 states and 4737 transitions. [2020-10-13 06:27:15,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:27:15,379 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 4737 transitions. [2020-10-13 06:27:15,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-10-13 06:27:15,389 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:27:15,389 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:27:15,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:27:15,390 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:27:15,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:27:15,390 INFO L82 PathProgramCache]: Analyzing trace with hash -849585825, now seen corresponding path program 1 times [2020-10-13 06:27:15,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:27:15,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [791003722] [2020-10-13 06:27:15,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:27:15,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:15,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:15,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:18,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:20,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:20,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-10-13 06:27:20,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:27:20,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-13 06:27:20,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:20,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:27:20,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-13 06:27:20,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-13 06:27:20,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:27:20,777 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 06:27:20,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:27:20,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:20,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:20,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:20,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:27:20,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:27:20,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:27:20,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:20,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:27:20,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:27:20,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:27:20,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:27:20,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:27:20,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:20,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:21,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:21,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-13 06:27:21,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:27:21,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-13 06:27:21,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:21,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:27:21,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:27:21,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-13 06:27:21,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:27:21,226 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 102 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:27:21,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [791003722] [2020-10-13 06:27:21,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:27:21,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:27:21,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588272680] [2020-10-13 06:27:21,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:27:21,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:27:21,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:27:21,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:27:21,229 INFO L87 Difference]: Start difference. First operand 3638 states and 4737 transitions. Second operand 5 states. [2020-10-13 06:27:21,542 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 06:27:24,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:27:24,221 INFO L93 Difference]: Finished difference Result 10197 states and 13678 transitions. [2020-10-13 06:27:24,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:27:24,222 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 278 [2020-10-13 06:27:24,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:27:24,256 INFO L225 Difference]: With dead ends: 10197 [2020-10-13 06:27:24,257 INFO L226 Difference]: Without dead ends: 6680 [2020-10-13 06:27:24,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:27:24,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6680 states. [2020-10-13 06:27:24,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6680 to 6624. [2020-10-13 06:27:24,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6624 states. [2020-10-13 06:27:24,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6624 states to 6624 states and 8772 transitions. [2020-10-13 06:27:24,478 INFO L78 Accepts]: Start accepts. Automaton has 6624 states and 8772 transitions. Word has length 278 [2020-10-13 06:27:24,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:27:24,479 INFO L479 AbstractCegarLoop]: Abstraction has 6624 states and 8772 transitions. [2020-10-13 06:27:24,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:27:24,479 INFO L276 IsEmpty]: Start isEmpty. Operand 6624 states and 8772 transitions. [2020-10-13 06:27:24,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-10-13 06:27:24,504 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:27:24,504 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:27:24,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:27:24,505 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:27:24,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:27:24,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1583859952, now seen corresponding path program 1 times [2020-10-13 06:27:24,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:27:24,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [124990612] [2020-10-13 06:27:24,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:27:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:24,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:24,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:28,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:28,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 328 [2020-10-13 06:27:28,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:27:28,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4143 [2020-10-13 06:27:28,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:28,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 06:27:28,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:27:28,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-13 06:27:28,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:27:29,021 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 06:27:29,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:27:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:29,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:29,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:29,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:27:29,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:27:29,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:27:29,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:29,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:27:29,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:27:29,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:27:29,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:27:29,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:27:29,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:29,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:29,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:29,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-13 06:27:29,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:27:29,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-13 06:27:29,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:29,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:27:29,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:27:29,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-13 06:27:29,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:27:29,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-13 06:27:29,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:29,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:29,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:29,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-13 06:27:29,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:27:29,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 06:27:29,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:29,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:27:29,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:27:29,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 06:27:29,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:27:29,987 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 139 proven. 33 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-13 06:27:29,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [124990612] [2020-10-13 06:27:29,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:27:29,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:27:29,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526779264] [2020-10-13 06:27:29,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 06:27:29,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:27:29,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 06:27:29,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:27:29,990 INFO L87 Difference]: Start difference. First operand 6624 states and 8772 transitions. Second operand 8 states. [2020-10-13 06:27:30,148 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 06:27:31,143 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 06:27:33,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:27:33,083 INFO L93 Difference]: Finished difference Result 14175 states and 18610 transitions. [2020-10-13 06:27:33,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:27:33,084 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 316 [2020-10-13 06:27:33,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:27:33,132 INFO L225 Difference]: With dead ends: 14175 [2020-10-13 06:27:33,132 INFO L226 Difference]: Without dead ends: 7672 [2020-10-13 06:27:33,157 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-13 06:27:33,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7672 states. [2020-10-13 06:27:33,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7672 to 7468. [2020-10-13 06:27:33,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7468 states. [2020-10-13 06:27:33,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7468 states to 7468 states and 9431 transitions. [2020-10-13 06:27:33,385 INFO L78 Accepts]: Start accepts. Automaton has 7468 states and 9431 transitions. Word has length 316 [2020-10-13 06:27:33,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:27:33,385 INFO L479 AbstractCegarLoop]: Abstraction has 7468 states and 9431 transitions. [2020-10-13 06:27:33,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 06:27:33,386 INFO L276 IsEmpty]: Start isEmpty. Operand 7468 states and 9431 transitions. [2020-10-13 06:27:33,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-10-13 06:27:33,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:27:33,408 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:27:33,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:27:33,408 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:27:33,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:27:33,409 INFO L82 PathProgramCache]: Analyzing trace with hash 950062881, now seen corresponding path program 1 times [2020-10-13 06:27:33,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:27:33,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [792442770] [2020-10-13 06:27:33,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:27:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:33,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:33,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:34,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:36,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:38,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:38,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 347 [2020-10-13 06:27:38,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:27:38,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5071 [2020-10-13 06:27:38,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:38,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:27:38,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-13 06:27:38,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 06:27:38,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:27:38,854 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 06:27:38,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:27:38,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:38,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:38,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:38,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:27:38,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:27:38,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:27:38,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:38,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:27:38,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:27:38,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:27:38,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:27:38,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:27:38,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:38,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:39,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:39,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-13 06:27:39,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:27:39,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-13 06:27:39,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:39,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:27:39,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:27:39,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 06:27:39,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:27:39,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 06:27:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:39,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:39,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:39,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 06:27:39,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:27:39,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-13 06:27:39,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:39,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:27:39,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:27:39,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 06:27:39,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:27:39,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-13 06:27:39,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:39,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:39,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:39,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-13 06:27:39,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:27:39,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 06:27:39,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:39,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:27:39,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-13 06:27:39,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:27:39,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:27:39,487 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 176 proven. 22 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-13 06:27:39,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [792442770] [2020-10-13 06:27:39,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:27:39,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:27:39,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565541004] [2020-10-13 06:27:39,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:27:39,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:27:39,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:27:39,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:27:39,490 INFO L87 Difference]: Start difference. First operand 7468 states and 9431 transitions. Second operand 7 states. [2020-10-13 06:27:39,699 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 06:27:39,931 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 06:27:43,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:27:43,996 INFO L93 Difference]: Finished difference Result 23950 states and 34067 transitions. [2020-10-13 06:27:43,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 06:27:43,996 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 333 [2020-10-13 06:27:43,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:27:44,087 INFO L225 Difference]: With dead ends: 23950 [2020-10-13 06:27:44,087 INFO L226 Difference]: Without dead ends: 16603 [2020-10-13 06:27:44,115 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:27:44,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16603 states. [2020-10-13 06:27:44,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16603 to 16129. [2020-10-13 06:27:44,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16129 states. [2020-10-13 06:27:44,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16129 states to 16129 states and 20484 transitions. [2020-10-13 06:27:44,683 INFO L78 Accepts]: Start accepts. Automaton has 16129 states and 20484 transitions. Word has length 333 [2020-10-13 06:27:44,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:27:44,684 INFO L479 AbstractCegarLoop]: Abstraction has 16129 states and 20484 transitions. [2020-10-13 06:27:44,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:27:44,684 INFO L276 IsEmpty]: Start isEmpty. Operand 16129 states and 20484 transitions. [2020-10-13 06:27:44,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2020-10-13 06:27:44,741 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:27:44,741 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:27:44,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:27:44,742 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:27:44,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:27:44,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1567967978, now seen corresponding path program 1 times [2020-10-13 06:27:44,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:27:44,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1773113957] [2020-10-13 06:27:44,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:27:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:44,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:45,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:45,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:46,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:49,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:49,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 359 [2020-10-13 06:27:49,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:27:49,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-13 06:27:49,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:49,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:27:49,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-13 06:27:49,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 06:27:49,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:27:50,002 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 06:27:50,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:27:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:50,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:50,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:50,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:27:50,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:27:50,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:27:50,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:50,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:27:50,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:27:50,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:27:50,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:27:50,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:27:50,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:50,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:50,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:50,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-13 06:27:50,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:27:50,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-13 06:27:50,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:50,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:27:50,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:27:50,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 06:27:50,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:27:50,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 06:27:50,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:50,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:50,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:50,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 06:27:50,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:27:50,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:27:50,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:50,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:27:50,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:27:50,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 06:27:50,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:27:50,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 06:27:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:50,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:50,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:50,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 06:27:50,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:27:50,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:27:50,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:50,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:27:50,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:27:50,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:27:50,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:27:50,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-13 06:27:50,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:50,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:50,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:27:50,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-13 06:27:50,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:27:50,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 06:27:50,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:27:50,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:27:50,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-13 06:27:50,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:27:50,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:27:50,502 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 170 proven. 12 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 06:27:50,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1773113957] [2020-10-13 06:27:50,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:27:50,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:27:50,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298834032] [2020-10-13 06:27:50,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:27:50,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:27:50,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:27:50,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:27:50,505 INFO L87 Difference]: Start difference. First operand 16129 states and 20484 transitions. Second operand 7 states. [2020-10-13 06:27:50,828 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 06:27:51,919 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 06:27:54,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:27:54,683 INFO L93 Difference]: Finished difference Result 32284 states and 45318 transitions. [2020-10-13 06:27:54,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 06:27:54,684 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 343 [2020-10-13 06:27:54,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:27:54,774 INFO L225 Difference]: With dead ends: 32284 [2020-10-13 06:27:54,774 INFO L226 Difference]: Without dead ends: 22250 [2020-10-13 06:27:54,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:27:54,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22250 states. [2020-10-13 06:27:55,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22250 to 21685. [2020-10-13 06:27:55,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21685 states. [2020-10-13 06:27:55,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21685 states to 21685 states and 27329 transitions. [2020-10-13 06:27:55,447 INFO L78 Accepts]: Start accepts. Automaton has 21685 states and 27329 transitions. Word has length 343 [2020-10-13 06:27:55,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:27:55,447 INFO L479 AbstractCegarLoop]: Abstraction has 21685 states and 27329 transitions. [2020-10-13 06:27:55,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:27:55,447 INFO L276 IsEmpty]: Start isEmpty. Operand 21685 states and 27329 transitions. [2020-10-13 06:27:55,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2020-10-13 06:27:55,514 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:27:55,515 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:27:55,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:27:55,515 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:27:55,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:27:55,516 INFO L82 PathProgramCache]: Analyzing trace with hash -71810853, now seen corresponding path program 1 times [2020-10-13 06:27:55,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:27:55,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [981645601] [2020-10-13 06:27:55,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:27:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:27:55,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:55,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:55,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:56,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:27:56,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:00,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:00,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 366 [2020-10-13 06:28:00,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:28:00,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-13 06:28:00,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:00,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:28:00,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-13 06:28:00,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 06:28:00,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:28:00,796 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 06:28:00,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:28:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:00,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:00,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:00,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:28:00,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:28:00,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:28:00,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:00,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:28:00,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:28:00,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:28:00,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:28:00,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:28:00,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:00,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:00,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:00,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 06:28:00,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:28:00,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:28:00,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:00,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:28:00,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:28:00,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:28:00,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:28:00,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 06:28:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:00,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:00,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:00,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 06:28:00,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:28:00,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:28:00,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:00,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:28:00,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:28:00,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:28:00,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:28:00,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 06:28:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:00,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:00,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:00,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 06:28:00,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:28:00,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:28:00,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:00,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:28:00,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:28:00,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:28:00,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:28:00,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 06:28:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:00,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:00,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:00,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 06:28:00,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:28:00,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:28:00,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:00,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:28:00,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:28:00,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:28:00,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:28:01,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-13 06:28:01,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:01,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:01,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:01,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 06:28:01,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:28:01,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-13 06:28:01,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:01,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:28:01,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:28:01,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 06:28:01,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:28:01,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-13 06:28:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:01,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:01,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:01,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-13 06:28:01,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:28:01,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 06:28:01,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:01,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:28:01,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-13 06:28:01,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:28:01,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:28:01,488 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 245 proven. 22 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2020-10-13 06:28:01,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [981645601] [2020-10-13 06:28:01,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:28:01,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:28:01,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986111766] [2020-10-13 06:28:01,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:28:01,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:28:01,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:28:01,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:28:01,490 INFO L87 Difference]: Start difference. First operand 21685 states and 27329 transitions. Second operand 7 states. [2020-10-13 06:28:01,697 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 06:28:01,913 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 06:28:06,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:28:06,031 INFO L93 Difference]: Finished difference Result 57529 states and 76415 transitions. [2020-10-13 06:28:06,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 06:28:06,032 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 346 [2020-10-13 06:28:06,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:28:06,155 INFO L225 Difference]: With dead ends: 57529 [2020-10-13 06:28:06,155 INFO L226 Difference]: Without dead ends: 36236 [2020-10-13 06:28:06,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:28:06,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36236 states. [2020-10-13 06:28:07,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36236 to 35189. [2020-10-13 06:28:07,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35189 states. [2020-10-13 06:28:07,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35189 states to 35189 states and 43526 transitions. [2020-10-13 06:28:07,142 INFO L78 Accepts]: Start accepts. Automaton has 35189 states and 43526 transitions. Word has length 346 [2020-10-13 06:28:07,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:28:07,143 INFO L479 AbstractCegarLoop]: Abstraction has 35189 states and 43526 transitions. [2020-10-13 06:28:07,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:28:07,143 INFO L276 IsEmpty]: Start isEmpty. Operand 35189 states and 43526 transitions. [2020-10-13 06:28:07,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2020-10-13 06:28:07,200 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:28:07,201 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2020-10-13 06:28:07,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:28:07,201 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:28:07,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:28:07,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1360653603, now seen corresponding path program 1 times [2020-10-13 06:28:07,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:28:07,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1499350896] [2020-10-13 06:28:07,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:28:07,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:07,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:07,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:07,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:08,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:09,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:09,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:12,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:12,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 373 [2020-10-13 06:28:12,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:28:12,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-10-13 06:28:12,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:12,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:28:12,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-10-13 06:28:12,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-13 06:28:12,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:28:12,512 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 06:28:12,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:28:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:12,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:12,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:12,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:28:12,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:28:12,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:28:12,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:12,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:28:12,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:28:12,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:28:12,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:28:12,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:28:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:12,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:12,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:12,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 06:28:12,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:28:12,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:28:12,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:12,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:28:12,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:28:12,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:28:12,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:28:12,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 06:28:12,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:12,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:12,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:12,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 06:28:12,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:28:12,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:28:12,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:12,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:28:12,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:28:12,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:28:12,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:28:12,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 06:28:12,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:12,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:12,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:12,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 06:28:12,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:28:12,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:28:12,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:12,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:28:12,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:28:12,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:28:12,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:28:12,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-13 06:28:12,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:12,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:12,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:12,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 06:28:12,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:28:12,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 06:28:12,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:12,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:28:12,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:28:12,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:28:12,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:28:12,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-13 06:28:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:12,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:12,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:12,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-13 06:28:12,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:28:12,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-13 06:28:12,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:12,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:28:12,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:28:12,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 06:28:12,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:28:12,975 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 289 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-10-13 06:28:12,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1499350896] [2020-10-13 06:28:12,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:28:12,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:28:12,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017324763] [2020-10-13 06:28:12,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:28:12,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:28:12,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:28:12,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:28:12,976 INFO L87 Difference]: Start difference. First operand 35189 states and 43526 transitions. Second operand 7 states. [2020-10-13 06:28:13,346 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-13 06:28:14,429 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 06:28:16,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:28:16,790 INFO L93 Difference]: Finished difference Result 79612 states and 103694 transitions. [2020-10-13 06:28:16,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 06:28:16,790 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 355 [2020-10-13 06:28:16,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:28:17,151 INFO L225 Difference]: With dead ends: 79612 [2020-10-13 06:28:17,152 INFO L226 Difference]: Without dead ends: 50141 [2020-10-13 06:28:17,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-13 06:28:17,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50141 states. [2020-10-13 06:28:18,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50141 to 49547. [2020-10-13 06:28:18,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49547 states. [2020-10-13 06:28:18,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49547 states to 49547 states and 62084 transitions. [2020-10-13 06:28:18,320 INFO L78 Accepts]: Start accepts. Automaton has 49547 states and 62084 transitions. Word has length 355 [2020-10-13 06:28:18,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:28:18,320 INFO L479 AbstractCegarLoop]: Abstraction has 49547 states and 62084 transitions. [2020-10-13 06:28:18,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:28:18,321 INFO L276 IsEmpty]: Start isEmpty. Operand 49547 states and 62084 transitions. [2020-10-13 06:28:18,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2020-10-13 06:28:18,384 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:28:18,385 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:28:18,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:28:18,385 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:28:18,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:28:18,386 INFO L82 PathProgramCache]: Analyzing trace with hash -683991161, now seen corresponding path program 1 times [2020-10-13 06:28:18,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:28:18,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [956643777] [2020-10-13 06:28:18,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:28:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:18,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:18,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:18,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:18,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:19,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:20,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:20,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:20,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:23,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:23,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 383 [2020-10-13 06:28:23,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 06:28:23,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-13 06:28:23,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:23,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:28:23,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-13 06:28:23,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:28:23,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:28:23,729 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 06:28:23,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:28:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:23,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:23,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:23,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:28:23,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:28:23,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:28:23,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:23,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:28:23,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:28:23,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:28:23,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:28:23,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:28:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:23,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:23,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:23,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 06:28:23,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:28:23,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:28:23,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:23,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:28:23,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:28:23,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:28:23,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:28:23,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 06:28:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:23,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:23,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:23,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 06:28:23,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:28:23,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 06:28:23,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:23,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:28:23,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:28:23,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:28:23,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:28:23,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 06:28:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:24,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:24,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:24,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 06:28:24,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:28:24,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 06:28:24,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:24,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:28:24,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:28:24,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:28:24,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:28:24,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 06:28:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:24,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:24,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:24,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 06:28:24,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:28:24,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 06:28:24,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:24,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:28:24,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:28:24,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 06:28:24,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:28:24,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-13 06:28:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:24,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:24,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:24,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 06:28:24,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:28:24,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-13 06:28:24,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:24,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:28:24,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-13 06:28:24,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:28:24,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:28:24,583 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 211 proven. 7 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2020-10-13 06:28:24,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [956643777] [2020-10-13 06:28:24,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:28:24,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:28:24,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300680312] [2020-10-13 06:28:24,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:28:24,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:28:24,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:28:24,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:28:24,602 INFO L87 Difference]: Start difference. First operand 49547 states and 62084 transitions. Second operand 7 states. [2020-10-13 06:28:25,003 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 06:28:25,993 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 06:28:31,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:28:31,271 INFO L93 Difference]: Finished difference Result 177493 states and 241786 transitions. [2020-10-13 06:28:31,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 06:28:31,272 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 365 [2020-10-13 06:28:31,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:28:31,682 INFO L225 Difference]: With dead ends: 177493 [2020-10-13 06:28:31,682 INFO L226 Difference]: Without dead ends: 127775 [2020-10-13 06:28:31,779 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:28:31,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127775 states. [2020-10-13 06:28:37,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127775 to 126333. [2020-10-13 06:28:37,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126333 states. [2020-10-13 06:28:37,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126333 states to 126333 states and 171348 transitions. [2020-10-13 06:28:37,372 INFO L78 Accepts]: Start accepts. Automaton has 126333 states and 171348 transitions. Word has length 365 [2020-10-13 06:28:37,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:28:37,373 INFO L479 AbstractCegarLoop]: Abstraction has 126333 states and 171348 transitions. [2020-10-13 06:28:37,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:28:37,373 INFO L276 IsEmpty]: Start isEmpty. Operand 126333 states and 171348 transitions. [2020-10-13 06:28:37,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2020-10-13 06:28:37,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:28:37,575 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:28:37,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:28:37,575 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:28:37,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:28:37,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1109848847, now seen corresponding path program 1 times [2020-10-13 06:28:37,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:28:37,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697895264] [2020-10-13 06:28:37,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:28:37,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:37,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:37,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:37,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:38,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:38,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:42,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:42,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 387 [2020-10-13 06:28:42,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:28:42,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-13 06:28:42,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:42,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:28:42,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-10-13 06:28:42,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:28:42,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:28:42,901 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 06:28:42,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:28:42,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:42,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:42,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:42,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:28:42,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:28:42,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:28:42,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:42,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:28:42,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:28:42,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:28:42,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:28:43,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:28:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:43,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:43,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:43,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 06:28:43,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:28:43,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 06:28:43,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:43,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:28:43,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:28:43,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:28:43,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:28:43,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 06:28:43,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:43,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:43,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:43,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:28:43,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:28:43,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-13 06:28:43,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:43,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:28:43,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:28:43,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 06:28:43,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:28:43,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-13 06:28:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:43,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:43,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:43,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 06:28:43,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:28:43,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:28:43,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:43,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:28:43,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:28:43,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 06:28:43,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:28:43,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-13 06:28:43,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:28:43,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:28:43,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:28:43,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 06:28:43,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:28:43,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-13 06:28:43,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:28:43,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:28:43,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-13 06:28:43,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:28:43,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:28:43,576 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 206 proven. 7 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2020-10-13 06:28:43,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697895264] [2020-10-13 06:28:43,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:28:43,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:28:43,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645629942] [2020-10-13 06:28:43,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:28:43,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:28:43,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:28:43,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:28:43,578 INFO L87 Difference]: Start difference. First operand 126333 states and 171348 transitions. Second operand 7 states. [2020-10-13 06:28:44,206 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 06:28:44,335 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-13 06:28:59,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:28:59,046 INFO L93 Difference]: Finished difference Result 402455 states and 623276 transitions. [2020-10-13 06:28:59,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 06:28:59,047 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 371 [2020-10-13 06:28:59,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:29:00,476 INFO L225 Difference]: With dead ends: 402455 [2020-10-13 06:29:00,477 INFO L226 Difference]: Without dead ends: 277775 [2020-10-13 06:29:00,723 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:29:00,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277775 states. [2020-10-13 06:29:09,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277775 to 269012. [2020-10-13 06:29:09,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269012 states. [2020-10-13 06:29:17,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269012 states to 269012 states and 381568 transitions. [2020-10-13 06:29:17,470 INFO L78 Accepts]: Start accepts. Automaton has 269012 states and 381568 transitions. Word has length 371 [2020-10-13 06:29:17,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:29:17,470 INFO L479 AbstractCegarLoop]: Abstraction has 269012 states and 381568 transitions. [2020-10-13 06:29:17,470 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:29:17,470 INFO L276 IsEmpty]: Start isEmpty. Operand 269012 states and 381568 transitions. [2020-10-13 06:29:17,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2020-10-13 06:29:17,950 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:29:17,950 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:29:17,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:29:17,951 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:29:17,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:29:17,951 INFO L82 PathProgramCache]: Analyzing trace with hash -774957629, now seen corresponding path program 1 times [2020-10-13 06:29:17,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:29:17,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755919797] [2020-10-13 06:29:17,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:29:18,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:29:18,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:29:18,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:29:18,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:29:18,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:29:19,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:29:21,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:29:22,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:29:23,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:29:23,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:29:23,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 394 [2020-10-13 06:29:23,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 06:29:23,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5066 [2020-10-13 06:29:23,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:29:23,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:29:23,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 91 [2020-10-13 06:29:23,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 06:29:23,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:29:23,345 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 06:29:23,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:29:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:29:23,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:29:23,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:29:23,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:29:23,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:29:23,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:29:23,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:29:23,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:29:23,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:29:23,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:29:23,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:29:23,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:29:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:29:23,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:29:23,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:29:23,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 06:29:23,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:29:23,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 06:29:23,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:29:23,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:29:23,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:29:23,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:29:23,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:29:23,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 06:29:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:29:23,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:29:23,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:29:23,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 06:29:23,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:29:23,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-13 06:29:23,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:29:23,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:29:23,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:29:23,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 06:29:23,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:29:23,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 06:29:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:29:23,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:29:23,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:29:23,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 06:29:23,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:29:23,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-13 06:29:23,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:29:23,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:29:23,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:29:23,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 06:29:23,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:29:23,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 06:29:23,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:29:23,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:29:23,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:29:23,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 06:29:23,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:29:23,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 06:29:23,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:29:23,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:29:23,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-13 06:29:23,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:29:23,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:29:23,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-13 06:29:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:29:23,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:29:24,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:29:24,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-13 06:29:24,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:29:24,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 06:29:24,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:29:24,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:29:24,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-13 06:29:24,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:29:24,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:29:24,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-13 06:29:24,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:29:24,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:29:24,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:29:24,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:29:24,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:29:24,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-13 06:29:24,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:29:24,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:29:24,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-13 06:29:24,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:29:24,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1