/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/Problem02_label30.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:11:11,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:11:11,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:11:12,017 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:11:12,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:11:12,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:11:12,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:11:12,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:11:12,032 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:11:12,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:11:12,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:11:12,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:11:12,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:11:12,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:11:12,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:11:12,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:11:12,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:11:12,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:11:12,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:11:12,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:11:12,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:11:12,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:11:12,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:11:12,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:11:12,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:11:12,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:11:12,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:11:12,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:11:12,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:11:12,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:11:12,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:11:12,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:11:12,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:11:12,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:11:12,062 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:11:12,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:11:12,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:11:12,063 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:11:12,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:11:12,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:11:12,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:11:12,065 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 06:11:12,087 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:11:12,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:11:12,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:11:12,088 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:11:12,089 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:11:12,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:11:12,089 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:11:12,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:11:12,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:11:12,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:11:12,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:11:12,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:11:12,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:11:12,090 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:11:12,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:11:12,091 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:11:12,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:11:12,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:11:12,091 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:11:12,092 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:11:12,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:11:12,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:11:12,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:11:12,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:11:12,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:11:12,093 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:11:12,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:11:12,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:11:12,093 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:11:12,094 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 06:11:12,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:11:12,394 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:11:12,397 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:11:12,399 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:11:12,399 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:11:12,400 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label30.c [2020-10-13 06:11:12,465 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/962d0161e/ed502a37c3ce4a05bd97e470257837d8/FLAGca9d21f23 [2020-10-13 06:11:13,022 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:11:13,023 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label30.c [2020-10-13 06:11:13,034 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/962d0161e/ed502a37c3ce4a05bd97e470257837d8/FLAGca9d21f23 [2020-10-13 06:11:13,312 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/962d0161e/ed502a37c3ce4a05bd97e470257837d8 [2020-10-13 06:11:13,320 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:11:13,321 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:11:13,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:11:13,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:11:13,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:11:13,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:11:13" (1/1) ... [2020-10-13 06:11:13,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bdfc9a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:11:13, skipping insertion in model container [2020-10-13 06:11:13,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:11:13" (1/1) ... [2020-10-13 06:11:13,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:11:13,403 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:11:14,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:11:14,053 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:11:14,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:11:14,211 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:11:14,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:11:14 WrapperNode [2020-10-13 06:11:14,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:11:14,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:11:14,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:11:14,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:11:14,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:11:14" (1/1) ... [2020-10-13 06:11:14,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:11:14" (1/1) ... [2020-10-13 06:11:14,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:11:14" (1/1) ... [2020-10-13 06:11:14,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:11:14" (1/1) ... [2020-10-13 06:11:14,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:11:14" (1/1) ... [2020-10-13 06:11:14,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:11:14" (1/1) ... [2020-10-13 06:11:14,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:11:14" (1/1) ... [2020-10-13 06:11:14,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:11:14,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:11:14,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:11:14,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:11:14,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:11:14" (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 06:11:14,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:11:14,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:11:14,397 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:11:14,397 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:11:14,397 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:11:14,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:11:14,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:11:14,398 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:11:14,398 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:11:14,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:11:14,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:11:15,605 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:11:15,606 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:11:15,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:11:15 BoogieIcfgContainer [2020-10-13 06:11:15,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:11:15,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:11:15,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:11:15,617 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:11:15,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:11:13" (1/3) ... [2020-10-13 06:11:15,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16a14471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:11:15, skipping insertion in model container [2020-10-13 06:11:15,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:11:14" (2/3) ... [2020-10-13 06:11:15,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16a14471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:11:15, skipping insertion in model container [2020-10-13 06:11:15,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:11:15" (3/3) ... [2020-10-13 06:11:15,620 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label30.c [2020-10-13 06:11:15,631 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:11:15,639 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:11:15,653 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:11:15,679 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:11:15,679 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:11:15,679 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:11:15,679 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:11:15,680 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:11:15,680 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:11:15,680 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:11:15,680 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:11:15,704 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-10-13 06:11:15,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-13 06:11:15,719 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:15,720 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] [2020-10-13 06:11:15,721 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:15,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:15,727 INFO L82 PathProgramCache]: Analyzing trace with hash -375142418, now seen corresponding path program 1 times [2020-10-13 06:11:15,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:15,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [343982067] [2020-10-13 06:11:15,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:15,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:16,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:16,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:17,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:17,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-13 06:11:17,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:11:17,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1579 [2020-10-13 06:11:17,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:17,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 06:11:17,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:11:17,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:11:17,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:11:18,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:18,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:18,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:18,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:18,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:18,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:11:18,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:18,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:18,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:18,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:11:18,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:18,321 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 06:11:18,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [343982067] [2020-10-13 06:11:18,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:11:18,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 06:11:18,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540617973] [2020-10-13 06:11:18,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 06:11:18,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:18,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 06:11:18,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:11:18,355 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 11 states. [2020-10-13 06:11:18,955 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2020-10-13 06:11:19,165 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2020-10-13 06:11:19,656 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-10-13 06:11:20,018 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2020-10-13 06:11:20,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:20,972 INFO L93 Difference]: Finished difference Result 536 states and 892 transitions. [2020-10-13 06:11:20,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:11:20,979 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 134 [2020-10-13 06:11:20,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:21,001 INFO L225 Difference]: With dead ends: 536 [2020-10-13 06:11:21,002 INFO L226 Difference]: Without dead ends: 236 [2020-10-13 06:11:21,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:11:21,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-13 06:11:21,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-10-13 06:11:21,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-13 06:11:21,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 323 transitions. [2020-10-13 06:11:21,091 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 323 transitions. Word has length 134 [2020-10-13 06:11:21,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:21,092 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 323 transitions. [2020-10-13 06:11:21,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 06:11:21,092 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 323 transitions. [2020-10-13 06:11:21,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-13 06:11:21,097 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:21,098 INFO L422 BasicCegarLoop]: trace histogram [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 06:11:21,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:11:21,098 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:21,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:21,099 INFO L82 PathProgramCache]: Analyzing trace with hash 19483679, now seen corresponding path program 1 times [2020-10-13 06:11:21,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:21,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [393004577] [2020-10-13 06:11:21,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:21,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:21,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:21,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:21,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:22,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:22,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-13 06:11:22,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:11:22,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1278 [2020-10-13 06:11:22,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:22,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:11:22,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 06:11:22,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:11:22,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:22,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:22,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:22,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:22,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:22,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:22,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:11:22,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:22,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:22,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:22,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:22,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:22,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:22,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:22,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:22,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 06:11:22,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:22,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:11:22,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:22,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:22,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:22,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 06:11:22,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-13 06:11:22,990 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:11:22,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [393004577] [2020-10-13 06:11:22,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:22,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:11:22,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87535756] [2020-10-13 06:11:22,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:11:22,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:22,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:11:22,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:11:22,996 INFO L87 Difference]: Start difference. First operand 233 states and 323 transitions. Second operand 12 states. [2020-10-13 06:11:24,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:24,784 INFO L93 Difference]: Finished difference Result 549 states and 794 transitions. [2020-10-13 06:11:24,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-13 06:11:24,784 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 143 [2020-10-13 06:11:24,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:24,787 INFO L225 Difference]: With dead ends: 549 [2020-10-13 06:11:24,787 INFO L226 Difference]: Without dead ends: 236 [2020-10-13 06:11:24,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:11:24,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-13 06:11:24,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-10-13 06:11:24,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-13 06:11:24,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 308 transitions. [2020-10-13 06:11:24,808 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 308 transitions. Word has length 143 [2020-10-13 06:11:24,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:24,808 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 308 transitions. [2020-10-13 06:11:24,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:11:24,809 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 308 transitions. [2020-10-13 06:11:24,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-13 06:11:24,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:24,812 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 06:11:24,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:11:24,812 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:24,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:24,813 INFO L82 PathProgramCache]: Analyzing trace with hash -93820777, now seen corresponding path program 1 times [2020-10-13 06:11:24,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:24,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [40384806] [2020-10-13 06:11:24,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:24,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:24,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:25,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:26,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:26,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-13 06:11:26,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:11:26,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1251 [2020-10-13 06:11:26,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:26,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:11:26,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 06:11:26,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 06:11:26,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:26,705 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 47 [2020-10-13 06:11:26,904 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 45 [2020-10-13 06:11:27,100 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 41 [2020-10-13 06:11:27,283 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 37 [2020-10-13 06:11:27,446 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 32 [2020-10-13 06:11:27,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:27,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:27,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:27,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:27,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:27,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:11:27,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:27,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:27,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:27,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:27,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:27,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:27,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:27,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:27,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:27,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:11:27,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:27,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 06:11:27,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:27,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:27,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:27,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:11:27,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:27,881 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:11:27,881 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [40384806] [2020-10-13 06:11:27,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:27,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:11:27,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065760847] [2020-10-13 06:11:27,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:11:27,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:27,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:11:27,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:11:27,884 INFO L87 Difference]: Start difference. First operand 233 states and 308 transitions. Second operand 12 states. [2020-10-13 06:11:28,210 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 06:11:28,589 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 103 [2020-10-13 06:11:28,858 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 100 [2020-10-13 06:11:29,393 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 97 [2020-10-13 06:11:29,892 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 92 [2020-10-13 06:11:30,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:30,476 INFO L93 Difference]: Finished difference Result 554 states and 772 transitions. [2020-10-13 06:11:30,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:11:30,477 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 147 [2020-10-13 06:11:30,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:30,483 INFO L225 Difference]: With dead ends: 554 [2020-10-13 06:11:30,483 INFO L226 Difference]: Without dead ends: 327 [2020-10-13 06:11:30,484 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-10-13 06:11:30,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-13 06:11:30,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 318. [2020-10-13 06:11:30,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-13 06:11:30,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 397 transitions. [2020-10-13 06:11:30,511 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 397 transitions. Word has length 147 [2020-10-13 06:11:30,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:30,512 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 397 transitions. [2020-10-13 06:11:30,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:11:30,512 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 397 transitions. [2020-10-13 06:11:30,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-13 06:11:30,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:30,516 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:30,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:11:30,516 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:30,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:30,517 INFO L82 PathProgramCache]: Analyzing trace with hash 445705455, now seen corresponding path program 1 times [2020-10-13 06:11:30,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:30,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697392763] [2020-10-13 06:11:30,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:30,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:30,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:30,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:31,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:31,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-13 06:11:31,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:11:31,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 501 [2020-10-13 06:11:31,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:31,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:11:31,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-13 06:11:31,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-13 06:11:31,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:31,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:31,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:31,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:31,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:31,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:31,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:11:31,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:31,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:31,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:31,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:31,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:31,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:31,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:31,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:31,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:11:31,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:31,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:11:31,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:31,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:31,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:31,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:31,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:31,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 06:11:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:31,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:31,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:31,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 06:11:31,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:31,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 06:11:31,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:31,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:31,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:31,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 06:11:31,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:31,532 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 06:11:31,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697392763] [2020-10-13 06:11:31,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:31,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:11:31,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333861808] [2020-10-13 06:11:31,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:11:31,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:31,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:11:31,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:11:31,536 INFO L87 Difference]: Start difference. First operand 318 states and 397 transitions. Second operand 5 states. [2020-10-13 06:11:32,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:32,541 INFO L93 Difference]: Finished difference Result 724 states and 951 transitions. [2020-10-13 06:11:32,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:11:32,542 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 169 [2020-10-13 06:11:32,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:32,547 INFO L225 Difference]: With dead ends: 724 [2020-10-13 06:11:32,548 INFO L226 Difference]: Without dead ends: 323 [2020-10-13 06:11:32,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:11:32,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-10-13 06:11:32,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 318. [2020-10-13 06:11:32,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-13 06:11:32,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 395 transitions. [2020-10-13 06:11:32,588 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 395 transitions. Word has length 169 [2020-10-13 06:11:32,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:32,588 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 395 transitions. [2020-10-13 06:11:32,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:11:32,589 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 395 transitions. [2020-10-13 06:11:32,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-13 06:11:32,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:32,595 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:32,595 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:11:32,595 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:32,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:32,596 INFO L82 PathProgramCache]: Analyzing trace with hash -151805330, now seen corresponding path program 1 times [2020-10-13 06:11:32,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:32,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [109049108] [2020-10-13 06:11:32,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:32,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:32,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:32,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:33,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:33,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 06:11:33,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:11:33,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1333 [2020-10-13 06:11:33,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:33,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:11:33,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-13 06:11:33,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:11:33,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:34,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:34,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:34,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:34,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:34,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:34,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:34,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:11:34,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:34,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:34,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:34,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:34,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:34,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:34,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:34,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:34,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:34,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:11:34,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:34,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 06:11:34,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:34,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:34,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:34,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:11:34,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:34,666 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:11:34,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [109049108] [2020-10-13 06:11:34,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:34,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:11:34,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489871358] [2020-10-13 06:11:34,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:11:34,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:34,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:11:34,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:11:34,670 INFO L87 Difference]: Start difference. First operand 318 states and 395 transitions. Second operand 12 states. [2020-10-13 06:11:36,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:36,219 INFO L93 Difference]: Finished difference Result 723 states and 948 transitions. [2020-10-13 06:11:36,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 06:11:36,221 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 168 [2020-10-13 06:11:36,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:36,226 INFO L225 Difference]: With dead ends: 723 [2020-10-13 06:11:36,226 INFO L226 Difference]: Without dead ends: 401 [2020-10-13 06:11:36,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2020-10-13 06:11:36,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-13 06:11:36,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 394. [2020-10-13 06:11:36,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-13 06:11:36,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 475 transitions. [2020-10-13 06:11:36,249 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 475 transitions. Word has length 168 [2020-10-13 06:11:36,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:36,251 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 475 transitions. [2020-10-13 06:11:36,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:11:36,251 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 475 transitions. [2020-10-13 06:11:36,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-13 06:11:36,253 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:36,254 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:36,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:11:36,254 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:36,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:36,255 INFO L82 PathProgramCache]: Analyzing trace with hash 2053173065, now seen corresponding path program 1 times [2020-10-13 06:11:36,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:36,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [159707286] [2020-10-13 06:11:36,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:36,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:36,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:36,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:36,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:37,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:37,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-13 06:11:37,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:11:37,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1393 [2020-10-13 06:11:37,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:37,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:11:37,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-13 06:11:37,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 06:11:37,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:37,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:37,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:37,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:37,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:37,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:37,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:37,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:11:37,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:37,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:37,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:37,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:37,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:37,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:37,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:37,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:37,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:37,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:11:37,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:37,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:11:37,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:37,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:37,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:37,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:37,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:37,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 06:11:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:37,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:37,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:37,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:11:37,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:37,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:11:37,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:37,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:37,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:37,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:11:37,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:38,020 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 06:11:38,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [159707286] [2020-10-13 06:11:38,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:38,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:11:38,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43435676] [2020-10-13 06:11:38,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:11:38,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:38,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:11:38,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:11:38,023 INFO L87 Difference]: Start difference. First operand 394 states and 475 transitions. Second operand 5 states. [2020-10-13 06:11:39,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:39,013 INFO L93 Difference]: Finished difference Result 874 states and 1106 transitions. [2020-10-13 06:11:39,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:11:39,016 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 176 [2020-10-13 06:11:39,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:39,019 INFO L225 Difference]: With dead ends: 874 [2020-10-13 06:11:39,020 INFO L226 Difference]: Without dead ends: 399 [2020-10-13 06:11:39,021 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:11:39,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-10-13 06:11:39,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 394. [2020-10-13 06:11:39,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-13 06:11:39,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 472 transitions. [2020-10-13 06:11:39,049 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 472 transitions. Word has length 176 [2020-10-13 06:11:39,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:39,049 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 472 transitions. [2020-10-13 06:11:39,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:11:39,050 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 472 transitions. [2020-10-13 06:11:39,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-13 06:11:39,053 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:39,053 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:39,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:11:39,054 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:39,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:39,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1883825476, now seen corresponding path program 1 times [2020-10-13 06:11:39,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:39,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1152456364] [2020-10-13 06:11:39,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:39,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:39,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:39,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:39,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:40,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:40,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-13 06:11:40,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:11:40,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1453 [2020-10-13 06:11:40,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:40,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:11:40,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-13 06:11:40,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:11:40,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:40,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:40,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:40,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:40,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:40,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:40,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:11:40,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:40,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:40,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:40,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:40,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:40,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:40,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:40,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:40,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:40,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:11:40,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:40,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 06:11:40,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:40,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:40,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:40,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:11:40,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:41,174 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 47 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:11:41,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1152456364] [2020-10-13 06:11:41,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:41,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:11:41,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058324024] [2020-10-13 06:11:41,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:11:41,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:41,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:11:41,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:11:41,177 INFO L87 Difference]: Start difference. First operand 394 states and 472 transitions. Second operand 12 states. [2020-10-13 06:11:43,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:43,280 INFO L93 Difference]: Finished difference Result 886 states and 1110 transitions. [2020-10-13 06:11:43,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 06:11:43,282 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 185 [2020-10-13 06:11:43,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:43,285 INFO L225 Difference]: With dead ends: 886 [2020-10-13 06:11:43,285 INFO L226 Difference]: Without dead ends: 498 [2020-10-13 06:11:43,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=155, Invalid=307, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:11:43,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2020-10-13 06:11:43,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 477. [2020-10-13 06:11:43,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2020-10-13 06:11:43,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 561 transitions. [2020-10-13 06:11:43,305 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 561 transitions. Word has length 185 [2020-10-13 06:11:43,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:43,305 INFO L479 AbstractCegarLoop]: Abstraction has 477 states and 561 transitions. [2020-10-13 06:11:43,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:11:43,306 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 561 transitions. [2020-10-13 06:11:43,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-13 06:11:43,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:43,309 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:43,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:11:43,309 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:43,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:43,310 INFO L82 PathProgramCache]: Analyzing trace with hash 316111320, now seen corresponding path program 1 times [2020-10-13 06:11:43,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:43,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2144727467] [2020-10-13 06:11:43,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:43,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:43,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:43,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:44,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:44,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:44,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-13 06:11:44,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:11:44,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1443 [2020-10-13 06:11:44,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:44,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:11:44,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-13 06:11:44,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:11:44,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:45,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:45,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:45,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:45,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:45,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:45,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:45,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:11:45,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:45,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:45,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:45,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:45,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:45,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:45,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:45,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:45,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:11:45,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:45,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 06:11:45,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:45,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:45,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:45,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-13 06:11:45,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:45,833 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:11:45,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2144727467] [2020-10-13 06:11:45,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:45,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:11:45,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832538648] [2020-10-13 06:11:45,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:11:45,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:45,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:11:45,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:11:45,836 INFO L87 Difference]: Start difference. First operand 477 states and 561 transitions. Second operand 12 states. [2020-10-13 06:11:46,352 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 101 [2020-10-13 06:11:46,879 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 97 [2020-10-13 06:11:47,088 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 94 [2020-10-13 06:11:47,508 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-10-13 06:11:47,709 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2020-10-13 06:11:48,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:48,346 INFO L93 Difference]: Finished difference Result 1040 states and 1272 transitions. [2020-10-13 06:11:48,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:11:48,346 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 191 [2020-10-13 06:11:48,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:48,349 INFO L225 Difference]: With dead ends: 1040 [2020-10-13 06:11:48,350 INFO L226 Difference]: Without dead ends: 569 [2020-10-13 06:11:48,352 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=128, Invalid=252, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:11:48,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2020-10-13 06:11:48,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 556. [2020-10-13 06:11:48,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-10-13 06:11:48,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 645 transitions. [2020-10-13 06:11:48,379 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 645 transitions. Word has length 191 [2020-10-13 06:11:48,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:48,380 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 645 transitions. [2020-10-13 06:11:48,380 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:11:48,380 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 645 transitions. [2020-10-13 06:11:48,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-13 06:11:48,384 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:48,384 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:48,384 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:11:48,385 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:48,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:48,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1304267614, now seen corresponding path program 1 times [2020-10-13 06:11:48,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:48,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [542894742] [2020-10-13 06:11:48,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:48,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:48,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:48,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:48,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:50,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:50,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-10-13 06:11:50,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:11:50,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2098 [2020-10-13 06:11:50,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:50,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:11:50,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-13 06:11:50,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 06:11:50,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:50,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:50,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:50,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:50,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:50,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:50,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:50,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:11:50,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:50,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:50,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:50,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:50,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:50,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:50,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:50,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:50,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:50,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:11:50,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:50,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:11:50,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:50,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:50,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:50,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:50,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:50,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 06:11:50,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:50,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:50,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:50,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 06:11:50,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:50,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 06:11:50,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:50,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:50,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:50,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 06:11:50,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:51,006 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 06:11:51,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [542894742] [2020-10-13 06:11:51,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:51,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:11:51,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622988635] [2020-10-13 06:11:51,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:11:51,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:51,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:11:51,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:11:51,009 INFO L87 Difference]: Start difference. First operand 556 states and 645 transitions. Second operand 6 states. [2020-10-13 06:11:51,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:51,993 INFO L93 Difference]: Finished difference Result 1203 states and 1454 transitions. [2020-10-13 06:11:51,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:11:51,994 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 216 [2020-10-13 06:11:51,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:51,997 INFO L225 Difference]: With dead ends: 1203 [2020-10-13 06:11:51,997 INFO L226 Difference]: Without dead ends: 464 [2020-10-13 06:11:51,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:11:52,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-10-13 06:11:52,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 457. [2020-10-13 06:11:52,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2020-10-13 06:11:52,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 533 transitions. [2020-10-13 06:11:52,015 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 533 transitions. Word has length 216 [2020-10-13 06:11:52,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:52,015 INFO L479 AbstractCegarLoop]: Abstraction has 457 states and 533 transitions. [2020-10-13 06:11:52,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:11:52,016 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 533 transitions. [2020-10-13 06:11:52,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-10-13 06:11:52,019 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:52,019 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, 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] [2020-10-13 06:11:52,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:11:52,020 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:52,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:52,020 INFO L82 PathProgramCache]: Analyzing trace with hash 780322708, now seen corresponding path program 1 times [2020-10-13 06:11:52,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:52,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [941564118] [2020-10-13 06:11:52,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:52,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:52,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:52,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:52,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:52,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:54,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:54,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-10-13 06:11:54,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:11:54,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2291 [2020-10-13 06:11:54,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:54,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:11:54,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-13 06:11:54,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 06:11:54,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:54,857 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2020-10-13 06:11:55,024 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 43 [2020-10-13 06:11:55,175 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 39 [2020-10-13 06:11:55,316 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 35 [2020-10-13 06:11:55,459 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 30 [2020-10-13 06:11:55,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:55,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:55,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:55,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:55,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:55,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:11:55,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:55,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:55,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:55,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:55,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:55,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:55,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:55,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:55,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:11:55,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:55,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:11:55,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:55,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:55,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:55,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:55,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:55,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 06:11:55,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:55,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:55,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:55,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:11:55,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:55,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:11:55,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:55,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:55,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:55,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:11:55,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:55,969 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 88 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 06:11:55,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [941564118] [2020-10-13 06:11:55,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:55,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:11:55,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578633165] [2020-10-13 06:11:55,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:11:55,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:55,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:11:55,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:11:55,973 INFO L87 Difference]: Start difference. First operand 457 states and 533 transitions. Second operand 12 states. [2020-10-13 06:11:56,645 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-13 06:11:57,000 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 102 [2020-10-13 06:11:57,302 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 99 [2020-10-13 06:11:57,728 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 96 [2020-10-13 06:11:57,987 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 91 [2020-10-13 06:11:58,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:58,729 INFO L93 Difference]: Finished difference Result 1000 states and 1211 transitions. [2020-10-13 06:11:58,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:11:58,730 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 227 [2020-10-13 06:11:58,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:58,734 INFO L225 Difference]: With dead ends: 1000 [2020-10-13 06:11:58,734 INFO L226 Difference]: Without dead ends: 549 [2020-10-13 06:11:58,736 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:11:58,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2020-10-13 06:11:58,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 534. [2020-10-13 06:11:58,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2020-10-13 06:11:58,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 613 transitions. [2020-10-13 06:11:58,753 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 613 transitions. Word has length 227 [2020-10-13 06:11:58,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:58,753 INFO L479 AbstractCegarLoop]: Abstraction has 534 states and 613 transitions. [2020-10-13 06:11:58,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:11:58,754 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 613 transitions. [2020-10-13 06:11:58,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-10-13 06:11:58,756 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:58,756 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 06:11:58,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:11:58,757 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:58,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:58,757 INFO L82 PathProgramCache]: Analyzing trace with hash 839667462, now seen corresponding path program 1 times [2020-10-13 06:11:58,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:58,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [179784494] [2020-10-13 06:11:58,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:58,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:58,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:59,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:59,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-13 06:11:59,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:11:59,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 691 [2020-10-13 06:11:59,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:59,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:11:59,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 118 [2020-10-13 06:11:59,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-13 06:11:59,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:59,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:59,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:59,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:59,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:59,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:59,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:11:59,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:59,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:59,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:59,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:59,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:59,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:59,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:59,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:59,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:59,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:11:59,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:59,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:11:59,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:59,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:59,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:59,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:59,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:59,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 06:11:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:59,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:59,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:59,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 06:11:59,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:59,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 06:11:59,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:59,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:59,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:59,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 06:11:59,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:59,901 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-13 06:11:59,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [179784494] [2020-10-13 06:11:59,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:59,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:11:59,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538270857] [2020-10-13 06:11:59,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:11:59,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:59,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:11:59,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:11:59,904 INFO L87 Difference]: Start difference. First operand 534 states and 613 transitions. Second operand 6 states. [2020-10-13 06:12:01,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:01,251 INFO L93 Difference]: Finished difference Result 1245 states and 1526 transitions. [2020-10-13 06:12:01,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 06:12:01,256 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 240 [2020-10-13 06:12:01,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:01,259 INFO L225 Difference]: With dead ends: 1245 [2020-10-13 06:12:01,259 INFO L226 Difference]: Without dead ends: 465 [2020-10-13 06:12:01,261 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:12:01,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-10-13 06:12:01,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 458. [2020-10-13 06:12:01,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2020-10-13 06:12:01,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 530 transitions. [2020-10-13 06:12:01,276 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 530 transitions. Word has length 240 [2020-10-13 06:12:01,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:01,276 INFO L479 AbstractCegarLoop]: Abstraction has 458 states and 530 transitions. [2020-10-13 06:12:01,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:12:01,277 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 530 transitions. [2020-10-13 06:12:01,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-10-13 06:12:01,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:01,279 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 06:12:01,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:12:01,279 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:01,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:01,280 INFO L82 PathProgramCache]: Analyzing trace with hash 156271065, now seen corresponding path program 1 times [2020-10-13 06:12:01,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:01,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1262400310] [2020-10-13 06:12:01,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:01,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:01,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:01,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:01,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:01,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:01,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:03,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:03,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:03,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:04,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:05,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:05,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-10-13 06:12:05,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 06:12:05,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4605 [2020-10-13 06:12:05,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:05,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:12:05,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-13 06:12:05,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 06:12:05,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:06,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:06,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:06,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:06,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:06,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:06,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:12:06,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:06,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:06,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:06,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:06,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:06,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:06,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:06,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:06,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:12:06,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:06,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:12:06,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:06,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:06,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:06,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:06,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:12:06,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 06:12:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:06,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:06,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:06,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:12:06,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:06,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:12:06,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:06,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:06,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:06,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:06,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:06,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 06:12:06,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:06,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:06,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:06,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:12:06,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:06,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:12:06,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:06,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 06:12:06,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:06,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 06:12:06,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:12:06,608 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 105 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-13 06:12:06,609 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1262400310] [2020-10-13 06:12:06,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:06,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:12:06,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076539495] [2020-10-13 06:12:06,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:12:06,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:06,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:12:06,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:12:06,611 INFO L87 Difference]: Start difference. First operand 458 states and 530 transitions. Second operand 13 states. [2020-10-13 06:12:08,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:08,995 INFO L93 Difference]: Finished difference Result 1152 states and 1416 transitions. [2020-10-13 06:12:08,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 06:12:08,996 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 247 [2020-10-13 06:12:08,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:08,999 INFO L225 Difference]: With dead ends: 1152 [2020-10-13 06:12:08,999 INFO L226 Difference]: Without dead ends: 466 [2020-10-13 06:12:09,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=303, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:12:09,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-10-13 06:12:09,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 461. [2020-10-13 06:12:09,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-10-13 06:12:09,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 541 transitions. [2020-10-13 06:12:09,015 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 541 transitions. Word has length 247 [2020-10-13 06:12:09,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:09,016 INFO L479 AbstractCegarLoop]: Abstraction has 461 states and 541 transitions. [2020-10-13 06:12:09,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:12:09,016 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 541 transitions. [2020-10-13 06:12:09,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-10-13 06:12:09,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:09,018 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:12:09,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:12:09,019 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:09,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:09,019 INFO L82 PathProgramCache]: Analyzing trace with hash 582278910, now seen corresponding path program 1 times [2020-10-13 06:12:09,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:09,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1757360913] [2020-10-13 06:12:09,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:09,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:09,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:09,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:09,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:09,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:10,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:10,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-13 06:12:10,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:12:10,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1627 [2020-10-13 06:12:10,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:10,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:12:10,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-13 06:12:10,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 06:12:10,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:10,992 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2020-10-13 06:12:11,167 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 41 [2020-10-13 06:12:11,349 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 40 [2020-10-13 06:12:11,478 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 36 [2020-10-13 06:12:11,613 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 32 [2020-10-13 06:12:11,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:11,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:11,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:11,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:11,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:11,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:12:11,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:11,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:11,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:11,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:11,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:11,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:11,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:11,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:11,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:12:11,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:11,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:12:11,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:11,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:11,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:11,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:11,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:11,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:12:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:11,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:11,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:11,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:12:11,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:11,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 06:12:11,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:11,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:11,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:11,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:12:11,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:12,050 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-13 06:12:12,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1757360913] [2020-10-13 06:12:12,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:12,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:12:12,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054773357] [2020-10-13 06:12:12,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:12:12,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:12,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:12:12,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:12:12,053 INFO L87 Difference]: Start difference. First operand 461 states and 541 transitions. Second operand 12 states. [2020-10-13 06:12:12,836 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-13 06:12:13,011 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-13 06:12:13,297 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 100 [2020-10-13 06:12:13,559 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 97 [2020-10-13 06:12:13,862 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 94 [2020-10-13 06:12:14,101 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 89 [2020-10-13 06:12:14,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:14,654 INFO L93 Difference]: Finished difference Result 987 states and 1185 transitions. [2020-10-13 06:12:14,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 06:12:14,657 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 262 [2020-10-13 06:12:14,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:14,660 INFO L225 Difference]: With dead ends: 987 [2020-10-13 06:12:14,660 INFO L226 Difference]: Without dead ends: 532 [2020-10-13 06:12:14,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-10-13 06:12:14,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2020-10-13 06:12:14,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 498. [2020-10-13 06:12:14,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 498 states. [2020-10-13 06:12:14,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 585 transitions. [2020-10-13 06:12:14,681 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 585 transitions. Word has length 262 [2020-10-13 06:12:14,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:14,682 INFO L479 AbstractCegarLoop]: Abstraction has 498 states and 585 transitions. [2020-10-13 06:12:14,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:12:14,682 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 585 transitions. [2020-10-13 06:12:14,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-10-13 06:12:14,684 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:14,685 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 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] [2020-10-13 06:12:14,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:12:14,685 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:14,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:14,685 INFO L82 PathProgramCache]: Analyzing trace with hash 879281293, now seen corresponding path program 1 times [2020-10-13 06:12:14,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:14,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [802674479] [2020-10-13 06:12:14,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:14,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:14,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:14,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:15,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:15,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:15,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:16,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:16,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 290 [2020-10-13 06:12:16,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:12:16,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1310 [2020-10-13 06:12:16,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:16,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:12:16,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 156 [2020-10-13 06:12:16,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 06:12:16,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:16,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:16,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:16,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:16,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:16,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:16,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:12:16,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:16,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:16,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:16,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:16,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:12:16,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:16,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:16,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:16,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:12:16,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:16,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:12:16,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:16,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:16,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:16,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:16,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:12:16,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:12:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:16,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:16,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:16,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:12:16,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:16,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:12:16,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:16,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:16,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:16,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:16,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:12:16,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:12:16,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:16,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:16,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:16,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 06:12:16,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:16,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:12:16,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:16,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:16,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:16,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 06:12:16,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:12:16,617 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 136 proven. 3 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-13 06:12:16,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [802674479] [2020-10-13 06:12:16,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:16,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:12:16,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145391102] [2020-10-13 06:12:16,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:12:16,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:16,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:12:16,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:12:16,621 INFO L87 Difference]: Start difference. First operand 498 states and 585 transitions. Second operand 5 states. [2020-10-13 06:12:17,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:17,547 INFO L93 Difference]: Finished difference Result 1076 states and 1306 transitions. [2020-10-13 06:12:17,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:12:17,554 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 276 [2020-10-13 06:12:17,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:17,557 INFO L225 Difference]: With dead ends: 1076 [2020-10-13 06:12:17,557 INFO L226 Difference]: Without dead ends: 501 [2020-10-13 06:12:17,558 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:12:17,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2020-10-13 06:12:17,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 498. [2020-10-13 06:12:17,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 498 states. [2020-10-13 06:12:17,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 580 transitions. [2020-10-13 06:12:17,574 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 580 transitions. Word has length 276 [2020-10-13 06:12:17,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:17,575 INFO L479 AbstractCegarLoop]: Abstraction has 498 states and 580 transitions. [2020-10-13 06:12:17,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:12:17,575 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 580 transitions. [2020-10-13 06:12:17,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-10-13 06:12:17,578 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:17,578 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 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] [2020-10-13 06:12:17,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:12:17,578 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:17,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:17,579 INFO L82 PathProgramCache]: Analyzing trace with hash -2067626567, now seen corresponding path program 1 times [2020-10-13 06:12:17,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:17,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [587885406] [2020-10-13 06:12:17,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:17,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:17,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:17,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:17,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:17,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:17,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:18,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:19,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:19,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:19,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:21,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:21,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 297 [2020-10-13 06:12:21,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 06:12:21,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4053 [2020-10-13 06:12:21,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:21,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:12:21,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-10-13 06:12:21,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:12:21,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:22,146 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 38 [2020-10-13 06:12:22,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:22,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:22,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:22,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:22,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:22,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:12:22,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:22,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:22,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:22,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:22,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:22,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:22,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:22,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:22,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:22,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:12:22,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:22,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:12:22,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:22,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:22,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:22,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:22,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:22,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:12:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:22,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:22,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:22,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:12:22,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:22,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:12:22,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:22,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:22,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:22,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:22,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:22,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:12:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:22,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:22,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:22,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 06:12:22,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:22,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:12:22,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:22,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 06:12:22,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:22,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:12:22,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:22,739 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 141 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 06:12:22,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [587885406] [2020-10-13 06:12:22,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:22,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:12:22,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189942977] [2020-10-13 06:12:22,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:12:22,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:22,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:12:22,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:12:22,741 INFO L87 Difference]: Start difference. First operand 498 states and 580 transitions. Second operand 13 states. [2020-10-13 06:12:23,471 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-13 06:12:23,763 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 99 [2020-10-13 06:12:24,024 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2020-10-13 06:12:24,430 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 92 [2020-10-13 06:12:24,863 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 87 [2020-10-13 06:12:25,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:25,775 INFO L93 Difference]: Finished difference Result 1370 states and 1676 transitions. [2020-10-13 06:12:25,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:12:25,776 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 283 [2020-10-13 06:12:25,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:25,781 INFO L225 Difference]: With dead ends: 1370 [2020-10-13 06:12:25,781 INFO L226 Difference]: Without dead ends: 877 [2020-10-13 06:12:25,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:12:25,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2020-10-13 06:12:25,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 869. [2020-10-13 06:12:25,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2020-10-13 06:12:25,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 999 transitions. [2020-10-13 06:12:25,807 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 999 transitions. Word has length 283 [2020-10-13 06:12:25,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:25,808 INFO L479 AbstractCegarLoop]: Abstraction has 869 states and 999 transitions. [2020-10-13 06:12:25,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:12:25,808 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 999 transitions. [2020-10-13 06:12:25,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2020-10-13 06:12:25,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:25,811 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 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] [2020-10-13 06:12:25,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:12:25,812 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:25,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:25,812 INFO L82 PathProgramCache]: Analyzing trace with hash -967244658, now seen corresponding path program 1 times [2020-10-13 06:12:25,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:25,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1195123627] [2020-10-13 06:12:25,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:25,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:25,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:26,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:26,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-13 06:12:26,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:12:26,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 493 [2020-10-13 06:12:26,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:26,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:12:26,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-13 06:12:26,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 06:12:26,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:26,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:26,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:26,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:26,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:26,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:26,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:12:26,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:26,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:26,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:26,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:26,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:26,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:26,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:26,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:26,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:26,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:12:26,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:26,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:12:26,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:26,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:26,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:26,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:26,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:26,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:12:26,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:26,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:26,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:26,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:12:26,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:26,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:12:26,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:26,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:26,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:26,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:26,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:26,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:12:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:26,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:26,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:26,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 06:12:26,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:26,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 06:12:26,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:26,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:26,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:26,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 06:12:26,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:26,727 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 148 proven. 3 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-10-13 06:12:26,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1195123627] [2020-10-13 06:12:26,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:26,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:12:26,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940564864] [2020-10-13 06:12:26,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:12:26,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:26,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:12:26,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:12:26,730 INFO L87 Difference]: Start difference. First operand 869 states and 999 transitions. Second operand 5 states. [2020-10-13 06:12:27,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:27,647 INFO L93 Difference]: Finished difference Result 1823 states and 2143 transitions. [2020-10-13 06:12:27,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:12:27,652 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 288 [2020-10-13 06:12:27,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:27,657 INFO L225 Difference]: With dead ends: 1823 [2020-10-13 06:12:27,657 INFO L226 Difference]: Without dead ends: 874 [2020-10-13 06:12:27,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:12:27,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2020-10-13 06:12:27,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 869. [2020-10-13 06:12:27,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2020-10-13 06:12:27,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 984 transitions. [2020-10-13 06:12:27,680 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 984 transitions. Word has length 288 [2020-10-13 06:12:27,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:27,681 INFO L479 AbstractCegarLoop]: Abstraction has 869 states and 984 transitions. [2020-10-13 06:12:27,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:12:27,681 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 984 transitions. [2020-10-13 06:12:27,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2020-10-13 06:12:27,684 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:27,684 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 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] [2020-10-13 06:12:27,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:12:27,685 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:27,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:27,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1400580444, now seen corresponding path program 1 times [2020-10-13 06:12:27,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:27,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1156104787] [2020-10-13 06:12:27,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:27,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:27,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:27,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:27,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:28,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:28,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:30,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:30,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 307 [2020-10-13 06:12:30,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:12:30,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2275 [2020-10-13 06:12:30,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:30,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:12:30,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-13 06:12:30,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 06:12:30,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:30,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:30,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:30,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:30,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:30,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:30,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:12:30,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:30,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:30,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:30,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:30,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:30,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:30,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:30,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:30,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:30,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:12:30,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:30,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:12:30,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:30,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:30,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:30,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:30,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:30,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:12:30,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:30,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:30,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:30,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:12:30,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:30,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:12:30,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:30,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:30,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:30,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:30,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:30,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:12:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:30,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:30,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:30,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 06:12:30,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:30,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:12:30,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:30,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:30,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:30,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 06:12:30,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:30,417 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 153 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2020-10-13 06:12:30,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1156104787] [2020-10-13 06:12:30,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:30,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:12:30,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596751949] [2020-10-13 06:12:30,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:12:30,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:30,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:12:30,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:12:30,421 INFO L87 Difference]: Start difference. First operand 869 states and 984 transitions. Second operand 5 states. [2020-10-13 06:12:31,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:31,258 INFO L93 Difference]: Finished difference Result 1821 states and 2105 transitions. [2020-10-13 06:12:31,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:12:31,259 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 293 [2020-10-13 06:12:31,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:31,263 INFO L225 Difference]: With dead ends: 1821 [2020-10-13 06:12:31,263 INFO L226 Difference]: Without dead ends: 874 [2020-10-13 06:12:31,265 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:12:31,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2020-10-13 06:12:31,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 869. [2020-10-13 06:12:31,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2020-10-13 06:12:31,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 971 transitions. [2020-10-13 06:12:31,287 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 971 transitions. Word has length 293 [2020-10-13 06:12:31,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:31,288 INFO L479 AbstractCegarLoop]: Abstraction has 869 states and 971 transitions. [2020-10-13 06:12:31,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:12:31,288 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 971 transitions. [2020-10-13 06:12:31,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2020-10-13 06:12:31,292 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:31,292 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:12:31,293 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:12:31,293 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:31,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:31,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1763538451, now seen corresponding path program 1 times [2020-10-13 06:12:31,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:31,294 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1983644375] [2020-10-13 06:12:31,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:31,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:31,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:31,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:31,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:31,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:31,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:31,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:33,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:33,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:34,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:34,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:34,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:34,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:35,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:35,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 364 [2020-10-13 06:12:35,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-13 06:12:35,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3848 [2020-10-13 06:12:35,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:35,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:12:35,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-10-13 06:12:35,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:12:35,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:35,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:35,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:35,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:35,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:35,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:35,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:12:35,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:35,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:35,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:35,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:35,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:35,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:35,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:35,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:35,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:35,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:12:35,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:35,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:12:35,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:35,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:35,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:35,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:35,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:35,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:12:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:35,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:35,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:35,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:12:35,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:35,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:12:35,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:35,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:35,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:35,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:35,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:35,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:12:35,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:35,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:35,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:35,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 06:12:35,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:35,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:12:35,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:35,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:35,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:35,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 06:12:35,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:35,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-13 06:12:35,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:35,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:35,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:35,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 06:12:35,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:35,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 06:12:35,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:35,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:12:35,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:12:35,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:12:35,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:35,493 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 336 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-13 06:12:35,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1983644375] [2020-10-13 06:12:35,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:35,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 06:12:35,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311404141] [2020-10-13 06:12:35,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 06:12:35,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:35,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 06:12:35,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:12:35,495 INFO L87 Difference]: Start difference. First operand 869 states and 971 transitions. Second operand 8 states. [2020-10-13 06:12:36,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:36,243 INFO L93 Difference]: Finished difference Result 1261 states and 1388 transitions. [2020-10-13 06:12:36,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 06:12:36,244 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 348 [2020-10-13 06:12:36,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:36,244 INFO L225 Difference]: With dead ends: 1261 [2020-10-13 06:12:36,245 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:12:36,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:12:36,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:12:36,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:12:36,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:12:36,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:12:36,249 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 348 [2020-10-13 06:12:36,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:36,250 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:12:36,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 06:12:36,250 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:12:36,250 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:12:36,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:12:36,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:12:37,591 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 203 DAG size of output: 151 [2020-10-13 06:12:38,223 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 172 [2020-10-13 06:12:41,433 WARN L193 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 255 DAG size of output: 189 [2020-10-13 06:12:42,193 WARN L193 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 82 [2020-10-13 06:12:43,181 WARN L193 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 111 [2020-10-13 06:12:43,185 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:12:43,186 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-10-13 06:12:43,186 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:12:43,186 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,186 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,186 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,186 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,187 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,187 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-10-13 06:12:43,187 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-10-13 06:12:43,187 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-13 06:12:43,187 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-13 06:12:43,187 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-13 06:12:43,187 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-13 06:12:43,188 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-13 06:12:43,188 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-10-13 06:12:43,188 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-10-13 06:12:43,188 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-10-13 06:12:43,188 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-10-13 06:12:43,188 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-10-13 06:12:43,188 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-10-13 06:12:43,188 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,189 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,189 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,189 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,189 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-10-13 06:12:43,189 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,189 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-10-13 06:12:43,189 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-13 06:12:43,189 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-13 06:12:43,189 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-13 06:12:43,189 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-13 06:12:43,189 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-13 06:12:43,190 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-10-13 06:12:43,190 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-10-13 06:12:43,190 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-10-13 06:12:43,190 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-10-13 06:12:43,190 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-10-13 06:12:43,190 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-10-13 06:12:43,190 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-10-13 06:12:43,190 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-10-13 06:12:43,190 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-10-13 06:12:43,190 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,190 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,191 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,191 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,191 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,191 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 556) no Hoare annotation was computed. [2020-10-13 06:12:43,191 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-10-13 06:12:43,191 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-10-13 06:12:43,191 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-10-13 06:12:43,191 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-13 06:12:43,192 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-13 06:12:43,192 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-13 06:12:43,192 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-13 06:12:43,192 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-13 06:12:43,192 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-10-13 06:12:43,192 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-10-13 06:12:43,192 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-10-13 06:12:43,192 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,192 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,193 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,193 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,193 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,193 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-10-13 06:12:43,193 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-10-13 06:12:43,193 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-10-13 06:12:43,193 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-13 06:12:43,193 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-13 06:12:43,193 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-13 06:12:43,193 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-13 06:12:43,193 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-13 06:12:43,193 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-10-13 06:12:43,194 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-10-13 06:12:43,194 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-10-13 06:12:43,194 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-10-13 06:12:43,194 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-10-13 06:12:43,194 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,194 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,194 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,194 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,194 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,194 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-10-13 06:12:43,195 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-10-13 06:12:43,195 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-13 06:12:43,195 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-13 06:12:43,195 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-13 06:12:43,195 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-13 06:12:43,195 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-10-13 06:12:43,195 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-10-13 06:12:43,195 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-10-13 06:12:43,195 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-10-13 06:12:43,195 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-10-13 06:12:43,195 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-10-13 06:12:43,195 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-10-13 06:12:43,195 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-10-13 06:12:43,196 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-10-13 06:12:43,196 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-10-13 06:12:43,196 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,196 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,196 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,196 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,196 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-10-13 06:12:43,196 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,196 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-10-13 06:12:43,196 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,196 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-10-13 06:12:43,196 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-10-13 06:12:43,197 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-10-13 06:12:43,197 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,197 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,197 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-10-13 06:12:43,197 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-13 06:12:43,197 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-13 06:12:43,197 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-13 06:12:43,197 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-13 06:12:43,197 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-13 06:12:43,198 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-10-13 06:12:43,198 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-10-13 06:12:43,198 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-10-13 06:12:43,198 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-10-13 06:12:43,198 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-10-13 06:12:43,198 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,198 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,198 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,198 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,198 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,199 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,199 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-10-13 06:12:43,199 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-10-13 06:12:43,199 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-13 06:12:43,199 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-13 06:12:43,199 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-13 06:12:43,199 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-13 06:12:43,199 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-13 06:12:43,199 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-10-13 06:12:43,199 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-10-13 06:12:43,199 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-10-13 06:12:43,200 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-10-13 06:12:43,200 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,200 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,200 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,200 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,200 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,200 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,200 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-10-13 06:12:43,200 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-10-13 06:12:43,200 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-10-13 06:12:43,201 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-10-13 06:12:43,201 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-13 06:12:43,201 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-13 06:12:43,201 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-13 06:12:43,201 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-13 06:12:43,201 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-13 06:12:43,201 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-10-13 06:12:43,201 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-10-13 06:12:43,201 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-10-13 06:12:43,201 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-10-13 06:12:43,201 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-10-13 06:12:43,202 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,202 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,202 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,203 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse30 (= |old(~a19~0)| 1)) (.cse7 (= |old(~a11~0)| 1))) (let ((.cse13 (not (<= |old(~a17~0)| 8))) (.cse16 (and (not (<= 2 |old(~a11~0)|)) (not (<= |old(~a11~0)| 0)))) (.cse15 (not (< 7 |old(~a17~0)|))) (.cse25 (= ~a19~0 1)) (.cse21 (not (= |old(~a11~0)| |old(~a25~0)|))) (.cse10 (not (= 9 |old(~a28~0)|))) (.cse11 (= ~a28~0 9)) (.cse22 (not (= 10 |old(~a28~0)|))) (.cse18 (not (= 7 |old(~a17~0)|))) (.cse19 (not (= |old(~a19~0)| |old(~a25~0)|))) (.cse20 (= 7 ~a17~0)) (.cse23 (= ~a28~0 10)) (.cse28 (= 7 ~a28~0)) (.cse27 (not (= 0 |old(~a25~0)|))) (.cse29 (not (= 7 |old(~a28~0)|))) (.cse12 (not .cse7)) (.cse26 (= ~a25~0 |old(~a25~0)|)) (.cse0 (not (<= |old(~a28~0)| 7))) (.cse14 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1))))) (.cse17 (not (<= |old(~a19~0)| 0))) (.cse24 (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) (not (= |calculate_output_#in~input| 6)))) (.cse1 (not (= |old(~a25~0)| 1))) (.cse2 (= ~a11~0 |old(~a11~0)|)) (.cse3 (= ~a17~0 8)) (.cse4 (= ~a25~0 1)) (.cse31 (= ~a28~0 8)) (.cse5 (= ~a19~0 |old(~a19~0)|)) (.cse9 (not .cse30)) (.cse6 (not (= 8 |old(~a17~0)|))) (.cse8 (not (= ~a21~0 1))) (.cse32 (not (= 8 |old(~a28~0)|)))) (and (or .cse0 .cse1 (and (= ~a28~0 |old(~a28~0)|) .cse2 .cse3 .cse4 .cse5) .cse6 .cse7 .cse8) (or .cse1 .cse9 .cse6 .cse10 .cse8 (and .cse2 .cse3 .cse4 .cse11 .cse5) .cse12) (or .cse1 .cse13 (not (<= |old(~a28~0)| 10)) .cse8 .cse14 .cse15 .cse16 .cse17 (and .cse2 (< 9 ~a28~0) .cse3 .cse4 (<= ~a28~0 10) .cse5) (not (< 9 |old(~a28~0)|))) (or .cse1 .cse18 (not (= |old(~a17~0)| |old(~a28~0)|)) .cse19 .cse8 (and .cse20 .cse2 .cse4 .cse5 (= ~a28~0 ~a17~0)) .cse21) (or (not (<= |old(~a25~0)| 1)) (not (<= |old(~a19~0)| 1)) .cse13 (not (<= |old(~a28~0)| 11)) (not (< 10 |old(~a28~0)|)) (not (<= 1 |old(~a19~0)|)) (and (<= ~a28~0 11) .cse2 (<= ~a17~0 8) (<= ~a25~0 1) (< 7 ~a17~0) (< 10 ~a28~0) .cse5 (< 0 ~a25~0)) .cse8 .cse14 .cse16 .cse15 (not (< 0 |old(~a25~0)|))) (or .cse1 .cse22 .cse9 .cse6 (and .cse2 .cse3 .cse4 .cse5 .cse23) .cse8 .cse12) (or .cse24 .cse9 .cse6 .cse7 .cse10 .cse8 (and .cse2 .cse25 .cse26 .cse3 .cse11)) (or .cse24 .cse9 (not (= 0 |old(~a11~0)|)) .cse6 .cse27 .cse8 (and .cse2 .cse25 .cse26 .cse3 .cse28) .cse29) (or .cse30 .cse1 .cse18 (and .cse20 .cse2 .cse4 .cse11 .cse5) .cse10 .cse8 .cse21) (or .cse24 .cse22 .cse9 .cse6 .cse7 .cse8 (and .cse2 .cse26 .cse3 .cse5 .cse23)) (or (and .cse2 .cse26 .cse3 .cse31 .cse5) .cse30 .cse6 .cse27 .cse7 .cse8 .cse14 .cse32) (or .cse9 (not (<= |old(~a19~0)| |old(~a11~0)|)) .cse6 (not (<= |old(~a25~0)| 0)) (not (< |old(~a11~0)| (+ |old(~a19~0)| 1))) .cse10 .cse8 (and .cse2 .cse26 .cse3 .cse11 .cse5)) (or .cse22 .cse18 .cse19 .cse27 .cse8 (and .cse20 .cse2 (= ~a25~0 ~a19~0) .cse5 .cse23) .cse12) (or (and .cse2 .cse26 .cse3 .cse28 .cse5) .cse6 .cse27 .cse8 .cse29 (= |old(~a11~0)| |old(~a19~0)|) .cse12) (or (and .cse2 .cse26 .cse3 (<= ~a28~0 7) .cse5 (< 6 ~a28~0)) .cse0 .cse6 .cse7 .cse8 .cse14 .cse17 (not (< 6 |old(~a28~0)|))) (or .cse24 .cse1 (and .cse2 .cse3 .cse4 .cse31 .cse5) .cse9 .cse6 .cse7 .cse8 .cse32)))) [2020-10-13 06:12:43,203 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,203 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,203 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,203 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-10-13 06:12:43,203 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-10-13 06:12:43,203 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-10-13 06:12:43,203 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-13 06:12:43,203 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-13 06:12:43,204 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-13 06:12:43,204 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-13 06:12:43,204 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-13 06:12:43,204 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-13 06:12:43,204 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-10-13 06:12:43,204 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-10-13 06:12:43,204 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-10-13 06:12:43,204 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-10-13 06:12:43,204 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,204 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,205 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,205 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,205 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,205 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,205 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-10-13 06:12:43,205 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-10-13 06:12:43,205 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-10-13 06:12:43,205 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-13 06:12:43,205 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-13 06:12:43,206 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-13 06:12:43,206 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-13 06:12:43,206 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-13 06:12:43,206 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-10-13 06:12:43,206 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-10-13 06:12:43,206 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-10-13 06:12:43,206 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-10-13 06:12:43,206 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-10-13 06:12:43,206 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-10-13 06:12:43,206 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-10-13 06:12:43,206 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-10-13 06:12:43,207 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,207 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,207 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,207 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,207 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:43,207 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-10-13 06:12:43,207 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-10-13 06:12:43,207 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-10-13 06:12:43,207 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-10-13 06:12:43,207 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-10-13 06:12:43,208 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-13 06:12:43,208 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-13 06:12:43,208 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-13 06:12:43,208 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-13 06:12:43,208 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-13 06:12:43,208 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-10-13 06:12:43,208 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-10-13 06:12:43,208 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-10-13 06:12:43,208 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-10-13 06:12:43,208 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-10-13 06:12:43,208 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-10-13 06:12:43,209 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-10-13 06:12:43,209 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-10-13 06:12:43,209 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-10-13 06:12:43,209 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:12:43,209 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 1) (= ~a25~0 0) (= ~a21~0 1) (= ~a17~0 8) (= 7 ~a28~0) (= ~a11~0 0)) [2020-10-13 06:12:43,209 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:12:43,209 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:12:43,209 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= |old(~a19~0)| 1)) (and (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8) (= 7 ~a28~0) (= ~a19~0 |old(~a19~0)|)) (not (= 0 |old(~a11~0)|)) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (not (= ~a21~0 1)) (not (= 7 |old(~a28~0)|))) [2020-10-13 06:12:43,210 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (= ~a19~0 1)) (.cse8 (= ~a11~0 1))) (let ((.cse6 (= ~a25~0 0)) (.cse10 (<= ~a19~0 0)) (.cse3 (not .cse8)) (.cse5 (<= ~a28~0 7)) (.cse13 (= ~a25~0 ~a19~0)) (.cse7 (= 7 ~a28~0)) (.cse14 (= ~a25~0 ~a11~0)) (.cse12 (= 7 ~a17~0)) (.cse9 (not .cse0)) (.cse2 (= ~a28~0 9)) (.cse1 (= ~a17~0 8)) (.cse4 (= ~a25~0 1)) (.cse11 (= ~a28~0 10))) (or (not (= |old(~a19~0)| 1)) (and .cse0 .cse1 .cse2 .cse3) (not (= 8 |old(~a17~0)|)) (and .cse1 .cse4 .cse3 .cse5) (not (= 0 |old(~a25~0)|)) (and (or (<= ~a11~0 0) (< 1 ~a11~0)) (<= ~a28~0 11) (<= 1 ~a25~0) (<= 8 ~a17~0) (<= ~a19~0 1) (<= ~a17~0 8) (<= ~a25~0 1) (<= 1 ~a19~0)) (and .cse0 .cse1 .cse2 (<= ~a25~0 0)) (and .cse6 .cse1 .cse7 (not (= ~a11~0 ~a19~0)) .cse8) (and .cse6 .cse1 .cse9 .cse3 (= ~a28~0 8)) (and .cse10 (<= 10 ~a28~0) .cse1 .cse4 .cse3 (<= ~a28~0 10)) (and .cse0 .cse1 .cse3 .cse11) (and .cse12 .cse6 .cse8 .cse13 .cse11) (and .cse10 (<= 7 ~a28~0) .cse1 .cse3 .cse5) (and .cse14 .cse12 .cse4 .cse13 (= ~a28~0 ~a17~0)) (not (= 0 |old(~a11~0)|)) (and (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) .cse1 .cse7 (= ~a19~0 |old(~a19~0)|)) (and .cse0 .cse1 .cse4 .cse2) (and .cse14 .cse12 .cse9 .cse4 .cse2) (not (= ~a21~0 1)) (not (= 7 |old(~a28~0)|)) (and .cse0 .cse1 .cse4 .cse11)))) [2020-10-13 06:12:43,210 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-10-13 06:12:43,210 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-10-13 06:12:43,210 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse12 (= ~a11~0 1)) (.cse10 (= ~a19~0 1))) (let ((.cse0 (or (<= ~a11~0 0) (< 1 ~a11~0))) (.cse11 (= 7 ~a28~0)) (.cse6 (<= ~a19~0 0)) (.cse1 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 6 main_~input~0) (<= main_~input~0 6)) (and (<= main_~input~0 3) (<= 3 main_~input~0)) (and (<= main_~input~0 1) (<= 1 main_~input~0)) (and (<= main_~input~0 5) (<= 5 main_~input~0)))) (.cse8 (<= ~a28~0 7)) (.cse2 (= ~a25~0 0)) (.cse15 (= ~a25~0 ~a19~0)) (.cse17 (= ~a25~0 ~a11~0)) (.cse14 (= 7 ~a17~0)) (.cse4 (not .cse10)) (.cse16 (= ~a28~0 10)) (.cse7 (= ~a25~0 1)) (.cse9 (or (= 5 main_~input~0) (= 6 main_~input~0) (= main_~input~0 4) (= 3 main_~input~0) (= main_~input~0 1))) (.cse3 (= ~a17~0 8)) (.cse13 (= ~a28~0 9)) (.cse5 (not .cse12))) (or (and .cse0 (<= ~a28~0 11) (<= 1 ~a25~0) (<= 8 ~a17~0) .cse1 (<= ~a19~0 1) (<= ~a17~0 8) (<= ~a25~0 1) (<= 1 ~a19~0)) (not (= |old(~a19~0)| 1)) (and .cse2 .cse3 .cse1 .cse4 .cse5 (= ~a28~0 8)) (not (= 8 |old(~a17~0)|)) (and .cse0 .cse6 (<= 10 ~a28~0) .cse3 .cse1 .cse7 (<= ~a28~0 10)) (and .cse3 .cse7 .cse5 .cse8) (not (= 0 |old(~a25~0)|)) (and .cse9 (= ~a11~0 |old(~a11~0)|) .cse10 (= ~a25~0 |old(~a25~0)|) .cse3 .cse11) (and .cse2 .cse3 .cse11 (not (= ~a11~0 ~a19~0)) .cse12) (and .cse10 (<= ~a19~0 ~a11~0) .cse3 .cse13 (< ~a11~0 (+ ~a19~0 1)) (<= ~a25~0 0)) (and .cse6 (<= 7 ~a28~0) .cse3 .cse1 .cse5 .cse8) (and .cse14 .cse2 .cse12 .cse15 .cse16) (not (= 0 |old(~a11~0)|)) (and .cse17 .cse14 .cse7 .cse15 (= ~a28~0 ~a17~0)) (and .cse17 .cse14 .cse4 .cse7 .cse13) (not (= ~a21~0 1)) (and .cse10 .cse3 .cse7 .cse12 .cse16) (and .cse9 .cse10 .cse3 .cse5 .cse16) (and .cse10 .cse3 .cse7 .cse13 .cse12) (not (= 7 |old(~a28~0)|)) (and .cse9 .cse10 .cse3 .cse13 .cse5)))) [2020-10-13 06:12:43,211 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-10-13 06:12:43,211 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-10-13 06:12:43,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:12:43 BoogieIcfgContainer [2020-10-13 06:12:43,236 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:12:43,238 INFO L168 Benchmark]: Toolchain (without parser) took 89916.79 ms. Allocated memory was 148.4 MB in the beginning and 1.1 GB in the end (delta: 908.6 MB). Free memory was 103.1 MB in the beginning and 871.9 MB in the end (delta: -768.8 MB). Peak memory consumption was 901.0 MB. Max. memory is 7.1 GB. [2020-10-13 06:12:43,239 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-10-13 06:12:43,239 INFO L168 Benchmark]: CACSL2BoogieTranslator took 888.26 ms. Allocated memory was 148.4 MB in the beginning and 208.7 MB in the end (delta: 60.3 MB). Free memory was 102.8 MB in the beginning and 175.0 MB in the end (delta: -72.1 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. [2020-10-13 06:12:43,240 INFO L168 Benchmark]: Boogie Preprocessor took 109.30 ms. Allocated memory is still 208.7 MB. Free memory was 175.0 MB in the beginning and 170.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-10-13 06:12:43,240 INFO L168 Benchmark]: RCFGBuilder took 1289.95 ms. Allocated memory was 208.7 MB in the beginning and 235.4 MB in the end (delta: 26.7 MB). Free memory was 170.1 MB in the beginning and 176.0 MB in the end (delta: -5.9 MB). Peak memory consumption was 79.2 MB. Max. memory is 7.1 GB. [2020-10-13 06:12:43,241 INFO L168 Benchmark]: TraceAbstraction took 87623.17 ms. Allocated memory was 235.4 MB in the beginning and 1.1 GB in the end (delta: 821.6 MB). Free memory was 176.0 MB in the beginning and 871.9 MB in the end (delta: -695.8 MB). Peak memory consumption was 886.9 MB. Max. memory is 7.1 GB. [2020-10-13 06:12:43,244 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 888.26 ms. Allocated memory was 148.4 MB in the beginning and 208.7 MB in the end (delta: 60.3 MB). Free memory was 102.8 MB in the beginning and 175.0 MB in the end (delta: -72.1 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.30 ms. Allocated memory is still 208.7 MB. Free memory was 175.0 MB in the beginning and 170.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1289.95 ms. Allocated memory was 208.7 MB in the beginning and 235.4 MB in the end (delta: 26.7 MB). Free memory was 170.1 MB in the beginning and 176.0 MB in the end (delta: -5.9 MB). Peak memory consumption was 79.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 87623.17 ms. Allocated memory was 235.4 MB in the beginning and 1.1 GB in the end (delta: 821.6 MB). Free memory was 176.0 MB in the beginning and 871.9 MB in the end (delta: -695.8 MB). Peak memory consumption was 886.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 556]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((((((((((((((((!(\old(a19) == 1) || (((a19 == 1 && a17 == 8) && a28 == 9) && !(a11 == 1))) || !(8 == \old(a17))) || (((a17 == 8 && a25 == 1) && !(a11 == 1)) && a28 <= 7)) || !(0 == \old(a25))) || ((((((((a11 <= 0 || 1 < a11) && a28 <= 11) && 1 <= a25) && 8 <= a17) && a19 <= 1) && a17 <= 8) && a25 <= 1) && 1 <= a19)) || (((a19 == 1 && a17 == 8) && a28 == 9) && a25 <= 0)) || ((((a25 == 0 && a17 == 8) && 7 == a28) && !(a11 == a19)) && a11 == 1)) || ((((a25 == 0 && a17 == 8) && !(a19 == 1)) && !(a11 == 1)) && a28 == 8)) || (((((a19 <= 0 && 10 <= a28) && a17 == 8) && a25 == 1) && !(a11 == 1)) && a28 <= 10)) || (((a19 == 1 && a17 == 8) && !(a11 == 1)) && a28 == 10)) || ((((7 == a17 && a25 == 0) && a11 == 1) && a25 == a19) && a28 == 10)) || ((((a19 <= 0 && 7 <= a28) && a17 == 8) && !(a11 == 1)) && a28 <= 7)) || ((((a25 == a11 && 7 == a17) && a25 == 1) && a25 == a19) && a28 == a17)) || !(0 == \old(a11))) || ((((a11 == \old(a11) && a25 == \old(a25)) && a17 == 8) && 7 == a28) && a19 == \old(a19))) || (((a19 == 1 && a17 == 8) && a25 == 1) && a28 == 9)) || ((((a25 == a11 && 7 == a17) && !(a19 == 1)) && a25 == 1) && a28 == 9)) || !(a21 == 1)) || !(7 == \old(a28))) || (((a19 == 1 && a17 == 8) && a25 == 1) && a28 == 10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 80.5s, OverallIterations: 18, TraceHistogramMax: 5, AutomataDifference: 31.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 677 SDtfs, 7136 SDslu, 985 SDs, 0 SdLazy, 15224 SolverSat, 1266 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 388 GetRequests, 152 SyntacticMatches, 12 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 16.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=869occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 18 MinimizatonAttempts, 155 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 109 PreInvPairs, 149 NumberOfFragments, 1825 HoareAnnotationTreeSize, 109 FomulaSimplifications, 20710074 FormulaSimplificationTreeSizeReduction, 1.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2351 FormulaSimplificationTreeSizeReductionInter, 4.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 43.8s InterpolantComputationTime, 3993 NumberOfCodeBlocks, 3993 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3975 ConstructedInterpolants, 0 QuantifiedInterpolants, 8907961 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 1 PerfectInterpolantSequences, 2294/2328 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...