/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/Problem01_label34.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:03:30,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:03:30,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:03:30,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:03:30,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:03:30,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:03:30,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:03:30,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:03:30,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:03:30,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:03:30,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:03:30,146 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:03:30,147 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:03:30,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:03:30,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:03:30,153 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:03:30,154 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:03:30,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:03:30,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:03:30,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:03:30,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:03:30,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:03:30,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:03:30,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:03:30,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:03:30,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:03:30,187 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:03:30,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:03:30,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:03:30,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:03:30,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:03:30,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:03:30,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:03:30,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:03:30,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:03:30,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:03:30,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:03:30,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:03:30,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:03:30,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:03:30,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:03:30,203 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 06:03:30,239 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:03:30,240 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:03:30,242 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:03:30,242 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:03:30,242 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:03:30,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:03:30,243 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:03:30,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:03:30,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:03:30,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:03:30,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:03:30,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:03:30,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:03:30,245 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:03:30,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:03:30,246 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:03:30,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:03:30,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:03:30,247 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:03:30,247 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:03:30,247 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:03:30,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:03:30,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:03:30,248 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:03:30,248 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:03:30,248 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:03:30,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:03:30,249 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:03:30,249 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:03:30,249 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 06:03:30,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:03:30,566 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:03:30,569 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:03:30,571 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:03:30,571 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:03:30,572 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label34.c [2020-10-13 06:03:30,636 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/466a3d70e/83cf9024636544b3b24cbea3f0674d0d/FLAGe571eb09b [2020-10-13 06:03:31,238 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:03:31,239 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label34.c [2020-10-13 06:03:31,250 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/466a3d70e/83cf9024636544b3b24cbea3f0674d0d/FLAGe571eb09b [2020-10-13 06:03:31,546 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/466a3d70e/83cf9024636544b3b24cbea3f0674d0d [2020-10-13 06:03:31,555 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:03:31,557 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:03:31,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:03:31,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:03:31,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:03:31,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:03:31" (1/1) ... [2020-10-13 06:03:31,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@532b1c07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:31, skipping insertion in model container [2020-10-13 06:03:31,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:03:31" (1/1) ... [2020-10-13 06:03:31,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:03:31,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:03:32,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:03:32,137 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:03:32,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:03:32,322 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:03:32,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:32 WrapperNode [2020-10-13 06:03:32,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:03:32,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:03:32,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:03:32,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:03:32,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:32" (1/1) ... [2020-10-13 06:03:32,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:32" (1/1) ... [2020-10-13 06:03:32,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:32" (1/1) ... [2020-10-13 06:03:32,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:32" (1/1) ... [2020-10-13 06:03:32,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:32" (1/1) ... [2020-10-13 06:03:32,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:32" (1/1) ... [2020-10-13 06:03:32,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:32" (1/1) ... [2020-10-13 06:03:32,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:03:32,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:03:32,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:03:32,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:03:32,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:32" (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 06:03:32,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:03:32,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:03:32,570 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:03:32,570 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:03:32,570 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:03:32,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:03:32,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:03:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:03:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:03:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:03:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:03:33,846 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:03:33,847 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:03:33,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:03:33 BoogieIcfgContainer [2020-10-13 06:03:33,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:03:33,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:03:33,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:03:33,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:03:33,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:03:31" (1/3) ... [2020-10-13 06:03:33,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac6017a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:03:33, skipping insertion in model container [2020-10-13 06:03:33,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:32" (2/3) ... [2020-10-13 06:03:33,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac6017a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:03:33, skipping insertion in model container [2020-10-13 06:03:33,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:03:33" (3/3) ... [2020-10-13 06:03:33,862 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label34.c [2020-10-13 06:03:33,873 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:03:33,881 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:03:33,896 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:03:33,922 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:03:33,922 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:03:33,922 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:03:33,923 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:03:33,923 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:03:33,923 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:03:33,923 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:03:33,923 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:03:33,946 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-13 06:03:33,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-13 06:03:33,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:33,959 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] [2020-10-13 06:03:33,960 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:33,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:33,966 INFO L82 PathProgramCache]: Analyzing trace with hash -2059241649, now seen corresponding path program 1 times [2020-10-13 06:03:33,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:33,976 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1749757271] [2020-10-13 06:03:33,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:34,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:34,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:34,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:35,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:35,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 06:03:35,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:03:35,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1399 [2020-10-13 06:03:35,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:35,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 06:03:35,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:03:35,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:03:35,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:03:36,537 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-10-13 06:03:36,767 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 49 [2020-10-13 06:03:37,133 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 50 [2020-10-13 06:03:37,417 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 46 [2020-10-13 06:03:37,637 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 43 [2020-10-13 06:03:37,834 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 40 [2020-10-13 06:03:37,989 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 36 [2020-10-13 06:03:38,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:38,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:38,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:38,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:38,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:38,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:38,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:03:38,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:38,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:38,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:38,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:03:38,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:38,369 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 06:03:38,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1749757271] [2020-10-13 06:03:38,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:03:38,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 06:03:38,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348036519] [2020-10-13 06:03:38,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:03:38,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:38,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:03:38,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:03:38,398 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 12 states. [2020-10-13 06:03:38,832 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-13 06:03:39,015 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 06:03:39,365 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 114 [2020-10-13 06:03:39,750 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 111 [2020-10-13 06:03:40,244 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 108 [2020-10-13 06:03:40,819 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 105 [2020-10-13 06:03:41,234 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 100 [2020-10-13 06:03:42,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:42,186 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-13 06:03:42,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:03:42,188 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 111 [2020-10-13 06:03:42,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:42,203 INFO L225 Difference]: With dead ends: 474 [2020-10-13 06:03:42,203 INFO L226 Difference]: Without dead ends: 205 [2020-10-13 06:03:42,210 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:03:42,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-13 06:03:42,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-13 06:03:42,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-13 06:03:42,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-13 06:03:42,275 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 111 [2020-10-13 06:03:42,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:42,276 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-13 06:03:42,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:03:42,277 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-13 06:03:42,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-13 06:03:42,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:42,282 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 06:03:42,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:03:42,283 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:42,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:42,283 INFO L82 PathProgramCache]: Analyzing trace with hash -381409516, now seen corresponding path program 1 times [2020-10-13 06:03:42,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:42,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1764350184] [2020-10-13 06:03:42,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:42,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:42,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:42,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:43,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:43,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 06:03:43,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:03:43,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1507 [2020-10-13 06:03:43,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:43,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:43,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 06:03:43,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:03:43,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:44,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:44,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:44,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:44,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:44,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:44,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:03:44,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:44,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:44,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:44,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:44,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-13 06:03:44,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:44,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:44,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:44,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:03:44,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:44,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:03:44,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:44,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:44,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:44,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:03:44,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:44,500 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:03:44,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1764350184] [2020-10-13 06:03:44,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:44,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:03:44,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797151353] [2020-10-13 06:03:44,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:03:44,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:44,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:03:44,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:03:44,505 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 14 states. [2020-10-13 06:03:44,905 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2020-10-13 06:03:45,122 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 06:03:45,597 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:03:46,711 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-13 06:03:47,055 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-10-13 06:03:47,478 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2020-10-13 06:03:47,667 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2020-10-13 06:03:48,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:48,749 INFO L93 Difference]: Finished difference Result 508 states and 777 transitions. [2020-10-13 06:03:48,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-13 06:03:48,750 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 119 [2020-10-13 06:03:48,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:48,756 INFO L225 Difference]: With dead ends: 508 [2020-10-13 06:03:48,756 INFO L226 Difference]: Without dead ends: 369 [2020-10-13 06:03:48,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=316, Invalid=740, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 06:03:48,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2020-10-13 06:03:48,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 278. [2020-10-13 06:03:48,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-10-13 06:03:48,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 357 transitions. [2020-10-13 06:03:48,784 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 357 transitions. Word has length 119 [2020-10-13 06:03:48,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:48,785 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 357 transitions. [2020-10-13 06:03:48,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:03:48,785 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 357 transitions. [2020-10-13 06:03:48,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-13 06:03:48,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:48,790 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:48,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:03:48,791 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:48,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:48,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1335140182, now seen corresponding path program 1 times [2020-10-13 06:03:48,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:48,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1453813707] [2020-10-13 06:03:48,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:48,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:48,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:48,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:49,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:49,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:49,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-13 06:03:49,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:03:49,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 710 [2020-10-13 06:03:49,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:49,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:49,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:03:49,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-13 06:03:49,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:49,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:49,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:49,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:49,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:49,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:49,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:49,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:03:49,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:49,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:49,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:49,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:49,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:49,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:49,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:49,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:49,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:49,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:03:49,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:49,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 06:03:49,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:49,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:49,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:49,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:03:49,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:50,112 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:03:50,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1453813707] [2020-10-13 06:03:50,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:50,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:03:50,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668094169] [2020-10-13 06:03:50,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:03:50,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:50,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:03:50,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:03:50,118 INFO L87 Difference]: Start difference. First operand 278 states and 357 transitions. Second operand 5 states. [2020-10-13 06:03:51,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:51,265 INFO L93 Difference]: Finished difference Result 591 states and 814 transitions. [2020-10-13 06:03:51,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:03:51,269 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 122 [2020-10-13 06:03:51,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:51,273 INFO L225 Difference]: With dead ends: 591 [2020-10-13 06:03:51,273 INFO L226 Difference]: Without dead ends: 280 [2020-10-13 06:03:51,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 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 06:03:51,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-10-13 06:03:51,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 278. [2020-10-13 06:03:51,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-10-13 06:03:51,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 332 transitions. [2020-10-13 06:03:51,296 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 332 transitions. Word has length 122 [2020-10-13 06:03:51,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:51,297 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 332 transitions. [2020-10-13 06:03:51,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:03:51,297 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 332 transitions. [2020-10-13 06:03:51,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-13 06:03:51,302 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:51,303 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:03:51,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:03:51,303 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:51,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:51,304 INFO L82 PathProgramCache]: Analyzing trace with hash 800151762, now seen corresponding path program 1 times [2020-10-13 06:03:51,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:51,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2055002879] [2020-10-13 06:03:51,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:51,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:51,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:51,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:53,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:53,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-13 06:03:53,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:03:53,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2221 [2020-10-13 06:03:53,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:53,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:53,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 06:03:53,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:03:53,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:53,970 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2020-10-13 06:03:54,118 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-10-13 06:03:54,324 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-13 06:03:54,580 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 49 [2020-10-13 06:03:54,840 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 45 [2020-10-13 06:03:55,060 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 42 [2020-10-13 06:03:55,280 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 39 [2020-10-13 06:03:55,477 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 33 [2020-10-13 06:03:55,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:55,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:55,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:55,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:55,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:55,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:55,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:03:55,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:55,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:55,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:55,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:55,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:55,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:55,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:55,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:55,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:03:55,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:55,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 06:03:55,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:55,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:55,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:55,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 06:03:55,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:55,816 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:03:55,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2055002879] [2020-10-13 06:03:55,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:55,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:55,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210352560] [2020-10-13 06:03:55,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:55,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:55,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:55,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:55,820 INFO L87 Difference]: Start difference. First operand 278 states and 332 transitions. Second operand 13 states. [2020-10-13 06:03:56,134 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 40 [2020-10-13 06:03:56,294 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 06:03:56,458 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 06:03:56,989 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 114 [2020-10-13 06:03:57,526 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 111 [2020-10-13 06:03:57,866 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 108 [2020-10-13 06:03:58,191 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 105 [2020-10-13 06:03:58,620 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 100 [2020-10-13 06:03:58,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:58,962 INFO L93 Difference]: Finished difference Result 556 states and 700 transitions. [2020-10-13 06:03:58,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 06:03:58,962 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 152 [2020-10-13 06:03:58,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:58,966 INFO L225 Difference]: With dead ends: 556 [2020-10-13 06:03:58,967 INFO L226 Difference]: Without dead ends: 327 [2020-10-13 06:03:58,968 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:03:58,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-13 06:03:58,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 321. [2020-10-13 06:03:58,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-10-13 06:03:58,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 380 transitions. [2020-10-13 06:03:58,988 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 380 transitions. Word has length 152 [2020-10-13 06:03:58,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:58,988 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 380 transitions. [2020-10-13 06:03:58,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:58,988 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 380 transitions. [2020-10-13 06:03:58,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-13 06:03:58,992 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:58,993 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, 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 06:03:58,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:03:58,993 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:58,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:58,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1292621997, now seen corresponding path program 1 times [2020-10-13 06:03:58,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:58,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [346164348] [2020-10-13 06:03:58,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:59,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:59,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:59,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:59,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:00,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:02,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:02,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-13 06:04:02,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:04:02,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3574 [2020-10-13 06:04:02,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:02,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:02,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 06:04:02,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 06:04:02,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 06:04:03,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:03,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:03,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:03,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:03,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:03,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:04:03,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:03,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:03,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:03,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:03,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:04:03,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:03,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:03,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:03,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:04:03,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:03,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:03,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:03,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:03,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:03,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:03,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:03,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:04:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:03,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:03,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:03,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:04:03,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:03,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 06:04:03,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:03,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:03,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:03,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 06:04:03,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:04:03,316 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 06:04:03,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [346164348] [2020-10-13 06:04:03,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:03,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:03,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710785899] [2020-10-13 06:04:03,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:03,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:03,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:03,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:03,321 INFO L87 Difference]: Start difference. First operand 321 states and 380 transitions. Second operand 13 states. [2020-10-13 06:04:03,899 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-13 06:04:04,020 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-13 06:04:04,266 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 06:04:04,623 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-13 06:04:04,906 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-13 06:04:05,122 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-13 06:04:05,441 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-10-13 06:04:05,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:05,904 INFO L93 Difference]: Finished difference Result 654 states and 817 transitions. [2020-10-13 06:04:05,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:04:05,907 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 169 [2020-10-13 06:04:05,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:05,910 INFO L225 Difference]: With dead ends: 654 [2020-10-13 06:04:05,911 INFO L226 Difference]: Without dead ends: 399 [2020-10-13 06:04:05,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:04:05,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-10-13 06:04:05,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 393. [2020-10-13 06:04:05,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-10-13 06:04:05,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 458 transitions. [2020-10-13 06:04:05,945 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 458 transitions. Word has length 169 [2020-10-13 06:04:05,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:05,945 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 458 transitions. [2020-10-13 06:04:05,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:05,946 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 458 transitions. [2020-10-13 06:04:05,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-13 06:04:05,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:05,953 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:04:05,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:04:05,956 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:05,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:05,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1440651458, now seen corresponding path program 1 times [2020-10-13 06:04:05,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:05,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2037695041] [2020-10-13 06:04:05,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:06,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:06,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:06,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:07,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:07,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-13 06:04:07,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:04:07,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1559 [2020-10-13 06:04:07,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:07,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:07,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 06:04:07,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 06:04:07,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:04:08,142 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-10-13 06:04:08,361 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-13 06:04:08,651 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 51 [2020-10-13 06:04:08,931 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 47 [2020-10-13 06:04:09,188 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 43 [2020-10-13 06:04:09,370 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 40 [2020-10-13 06:04:09,559 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 35 [2020-10-13 06:04:09,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:09,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:09,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:09,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:09,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:09,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:04:09,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:09,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:09,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:09,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:09,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 06:04:09,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:09,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:09,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:09,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:09,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:09,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-13 06:04:09,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:09,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:09,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:09,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 06:04:09,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:09,926 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 59 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:04:09,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2037695041] [2020-10-13 06:04:09,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:09,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:09,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741819337] [2020-10-13 06:04:09,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:09,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:09,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:09,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:09,928 INFO L87 Difference]: Start difference. First operand 393 states and 458 transitions. Second operand 13 states. [2020-10-13 06:04:10,426 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 44 [2020-10-13 06:04:10,587 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 06:04:10,760 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 06:04:11,317 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 115 [2020-10-13 06:04:11,870 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 112 [2020-10-13 06:04:12,203 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 109 [2020-10-13 06:04:12,534 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 106 [2020-10-13 06:04:12,892 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 101 [2020-10-13 06:04:13,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:13,349 INFO L93 Difference]: Finished difference Result 793 states and 971 transitions. [2020-10-13 06:04:13,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:04:13,351 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 174 [2020-10-13 06:04:13,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:13,355 INFO L225 Difference]: With dead ends: 793 [2020-10-13 06:04:13,356 INFO L226 Difference]: Without dead ends: 446 [2020-10-13 06:04:13,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:04:13,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2020-10-13 06:04:13,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 444. [2020-10-13 06:04:13,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-13 06:04:13,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 510 transitions. [2020-10-13 06:04:13,386 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 510 transitions. Word has length 174 [2020-10-13 06:04:13,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:13,387 INFO L479 AbstractCegarLoop]: Abstraction has 444 states and 510 transitions. [2020-10-13 06:04:13,387 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:13,387 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 510 transitions. [2020-10-13 06:04:13,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-13 06:04:13,391 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:13,391 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, 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] [2020-10-13 06:04:13,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:04:13,392 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:13,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:13,392 INFO L82 PathProgramCache]: Analyzing trace with hash 307685535, now seen corresponding path program 1 times [2020-10-13 06:04:13,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:13,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [896484435] [2020-10-13 06:04:13,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:13,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:13,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:16,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:16,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-10-13 06:04:16,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:04:16,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2692 [2020-10-13 06:04:16,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:16,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:16,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 06:04:16,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:04:16,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:16,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:16,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:16,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:16,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:16,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:16,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:16,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:16,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:16,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:16,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:16,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:16,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:16,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:16,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:16,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:16,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:04:16,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:16,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:04:16,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:16,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:16,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:16,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:16,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:16,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:04:16,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:16,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:16,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:16,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:04:16,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:16,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 06:04:16,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:16,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:16,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:16,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 06:04:16,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:16,735 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-13 06:04:16,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [896484435] [2020-10-13 06:04:16,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:16,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:16,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944233564] [2020-10-13 06:04:16,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:16,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:16,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:16,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:16,737 INFO L87 Difference]: Start difference. First operand 444 states and 510 transitions. Second operand 13 states. [2020-10-13 06:04:17,350 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-13 06:04:17,651 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2020-10-13 06:04:17,989 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2020-10-13 06:04:18,210 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-10-13 06:04:18,526 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2020-10-13 06:04:18,823 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2020-10-13 06:04:19,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:19,202 INFO L93 Difference]: Finished difference Result 886 states and 1063 transitions. [2020-10-13 06:04:19,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:04:19,203 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 185 [2020-10-13 06:04:19,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:19,206 INFO L225 Difference]: With dead ends: 886 [2020-10-13 06:04:19,206 INFO L226 Difference]: Without dead ends: 508 [2020-10-13 06:04:19,208 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:04:19,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-10-13 06:04:19,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2020-10-13 06:04:19,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2020-10-13 06:04:19,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 581 transitions. [2020-10-13 06:04:19,225 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 581 transitions. Word has length 185 [2020-10-13 06:04:19,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:19,226 INFO L479 AbstractCegarLoop]: Abstraction has 508 states and 581 transitions. [2020-10-13 06:04:19,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:19,226 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 581 transitions. [2020-10-13 06:04:19,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-13 06:04:19,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:19,229 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:04:19,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:04:19,230 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:19,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:19,230 INFO L82 PathProgramCache]: Analyzing trace with hash -124613681, now seen corresponding path program 1 times [2020-10-13 06:04:19,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:19,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [902527732] [2020-10-13 06:04:19,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:19,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:19,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:20,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:20,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:21,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:21,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-10-13 06:04:21,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:04:21,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2459 [2020-10-13 06:04:21,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:21,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:21,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 06:04:21,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:04:21,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:22,142 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-10-13 06:04:22,318 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 50 [2020-10-13 06:04:22,560 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 51 [2020-10-13 06:04:22,791 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 47 [2020-10-13 06:04:23,007 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 44 [2020-10-13 06:04:23,210 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 40 [2020-10-13 06:04:23,392 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 34 [2020-10-13 06:04:23,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:23,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:23,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:23,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:23,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:23,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:23,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:23,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:23,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:23,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:23,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:23,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:23,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:23,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:23,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:04:23,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:23,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:23,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:23,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:23,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:23,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:23,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:23,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:04:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:23,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:23,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:23,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:04:23,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:23,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 06:04:23,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:23,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:23,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:23,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:04:23,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:23,815 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 06:04:23,815 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [902527732] [2020-10-13 06:04:23,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:23,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:23,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651813952] [2020-10-13 06:04:23,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:23,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:23,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:23,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:23,819 INFO L87 Difference]: Start difference. First operand 508 states and 581 transitions. Second operand 13 states. [2020-10-13 06:04:24,553 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 41 [2020-10-13 06:04:24,705 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 06:04:24,884 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 06:04:25,347 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 115 [2020-10-13 06:04:25,834 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 112 [2020-10-13 06:04:26,072 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2020-10-13 06:04:26,375 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 109 [2020-10-13 06:04:26,736 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 106 [2020-10-13 06:04:27,152 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 101 [2020-10-13 06:04:27,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:27,759 INFO L93 Difference]: Finished difference Result 1010 states and 1198 transitions. [2020-10-13 06:04:27,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:04:27,760 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 188 [2020-10-13 06:04:27,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:27,763 INFO L225 Difference]: With dead ends: 1010 [2020-10-13 06:04:27,764 INFO L226 Difference]: Without dead ends: 551 [2020-10-13 06:04:27,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:04:27,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2020-10-13 06:04:27,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 546. [2020-10-13 06:04:27,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 546 states. [2020-10-13 06:04:27,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 626 transitions. [2020-10-13 06:04:27,785 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 626 transitions. Word has length 188 [2020-10-13 06:04:27,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:27,785 INFO L479 AbstractCegarLoop]: Abstraction has 546 states and 626 transitions. [2020-10-13 06:04:27,786 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:27,786 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 626 transitions. [2020-10-13 06:04:27,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-13 06:04:27,789 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:27,789 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, 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] [2020-10-13 06:04:27,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:04:27,790 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:27,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:27,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1277622485, now seen corresponding path program 1 times [2020-10-13 06:04:27,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:27,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1222362068] [2020-10-13 06:04:27,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:27,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:27,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:27,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:28,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:29,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:29,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-10-13 06:04:29,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:04:29,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1872 [2020-10-13 06:04:29,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:29,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:29,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-13 06:04:29,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:04:29,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:30,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:30,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:30,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:30,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:30,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:30,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:30,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:30,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:30,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:30,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:30,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:30,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:30,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:30,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:30,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:30,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:04:30,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:30,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:04:30,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:30,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:30,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:30,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:30,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:30,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:04:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:30,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:30,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:30,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 06:04:30,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:30,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:04:30,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:30,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:30,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:30,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 06:04:30,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:30,232 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 75 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 06:04:30,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1222362068] [2020-10-13 06:04:30,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:30,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:30,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228536920] [2020-10-13 06:04:30,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:30,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:30,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:30,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:30,234 INFO L87 Difference]: Start difference. First operand 546 states and 626 transitions. Second operand 13 states. [2020-10-13 06:04:31,217 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:04:31,542 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:04:31,808 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:04:32,022 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:04:32,341 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:04:32,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:32,709 INFO L93 Difference]: Finished difference Result 1088 states and 1290 transitions. [2020-10-13 06:04:32,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:04:32,710 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 191 [2020-10-13 06:04:32,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:32,714 INFO L225 Difference]: With dead ends: 1088 [2020-10-13 06:04:32,714 INFO L226 Difference]: Without dead ends: 591 [2020-10-13 06:04:32,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:04:32,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2020-10-13 06:04:32,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 589. [2020-10-13 06:04:32,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-10-13 06:04:32,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 676 transitions. [2020-10-13 06:04:32,737 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 676 transitions. Word has length 191 [2020-10-13 06:04:32,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:32,738 INFO L479 AbstractCegarLoop]: Abstraction has 589 states and 676 transitions. [2020-10-13 06:04:32,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:32,738 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 676 transitions. [2020-10-13 06:04:32,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-13 06:04:32,741 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:32,741 INFO L422 BasicCegarLoop]: trace histogram [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, 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 06:04:32,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:04:32,741 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:32,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:32,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1543067350, now seen corresponding path program 1 times [2020-10-13 06:04:32,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:32,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717508273] [2020-10-13 06:04:32,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:32,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:32,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:33,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:33,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:33,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:34,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:34,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-13 06:04:34,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:04:34,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2112 [2020-10-13 06:04:34,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:34,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:34,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-13 06:04:34,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:04:34,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:35,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:35,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:35,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:35,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:35,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:35,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:35,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:35,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:35,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:35,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:35,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:35,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:35,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:35,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:35,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:35,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:04:35,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:35,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:35,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:35,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:35,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:35,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:35,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:35,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:04:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:35,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:35,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:35,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:04:35,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:35,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:35,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:35,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:35,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:35,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:35,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:35,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:04:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:35,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:35,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:35,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 06:04:35,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:35,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:04:35,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:35,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:35,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:35,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 06:04:35,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:35,450 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 06:04:35,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [717508273] [2020-10-13 06:04:35,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:35,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:35,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227511647] [2020-10-13 06:04:35,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:35,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:35,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:35,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:35,452 INFO L87 Difference]: Start difference. First operand 589 states and 676 transitions. Second operand 13 states. [2020-10-13 06:04:35,945 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-13 06:04:37,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:37,154 INFO L93 Difference]: Finished difference Result 1170 states and 1386 transitions. [2020-10-13 06:04:37,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:04:37,155 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 195 [2020-10-13 06:04:37,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:37,158 INFO L225 Difference]: With dead ends: 1170 [2020-10-13 06:04:37,158 INFO L226 Difference]: Without dead ends: 630 [2020-10-13 06:04:37,160 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:04:37,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2020-10-13 06:04:37,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 589. [2020-10-13 06:04:37,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-10-13 06:04:37,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 676 transitions. [2020-10-13 06:04:37,180 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 676 transitions. Word has length 195 [2020-10-13 06:04:37,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:37,180 INFO L479 AbstractCegarLoop]: Abstraction has 589 states and 676 transitions. [2020-10-13 06:04:37,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:37,181 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 676 transitions. [2020-10-13 06:04:37,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-10-13 06:04:37,183 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:37,183 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, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:04:37,184 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:04:37,184 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:37,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:37,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1711201780, now seen corresponding path program 1 times [2020-10-13 06:04:37,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:37,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [215568028] [2020-10-13 06:04:37,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:37,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:37,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:37,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:37,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:38,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:40,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:40,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-10-13 06:04:40,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:04:40,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3003 [2020-10-13 06:04:40,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:40,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:40,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-13 06:04:40,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:04:40,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:40,659 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2020-10-13 06:04:40,807 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 39 [2020-10-13 06:04:40,956 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 37 [2020-10-13 06:04:41,100 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 35 [2020-10-13 06:04:41,246 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 34 [2020-10-13 06:04:41,385 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 31 [2020-10-13 06:04:41,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:41,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:41,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:41,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:41,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:41,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:41,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:41,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:41,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:41,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:41,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:41,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:41,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:41,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:41,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:41,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:04:41,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:41,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:04:41,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:41,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:41,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:41,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:41,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:41,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:04:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:41,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:41,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:41,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:04:41,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:41,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:04:41,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:41,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:41,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:41,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:41,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:41,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:04:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:41,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:41,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:41,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 06:04:41,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:41,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:04:41,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:41,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:41,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:41,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 06:04:41,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:41,659 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 96 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 06:04:41,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [215568028] [2020-10-13 06:04:41,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:41,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:41,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2858005] [2020-10-13 06:04:41,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:41,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:41,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:41,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:41,661 INFO L87 Difference]: Start difference. First operand 589 states and 676 transitions. Second operand 13 states. [2020-10-13 06:04:42,144 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-13 06:04:42,554 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 93 [2020-10-13 06:04:42,927 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-13 06:04:43,174 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2020-10-13 06:04:43,583 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 90 [2020-10-13 06:04:43,902 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 88 [2020-10-13 06:04:44,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:44,224 INFO L93 Difference]: Finished difference Result 1175 states and 1391 transitions. [2020-10-13 06:04:44,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 06:04:44,225 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 213 [2020-10-13 06:04:44,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:44,228 INFO L225 Difference]: With dead ends: 1175 [2020-10-13 06:04:44,228 INFO L226 Difference]: Without dead ends: 635 [2020-10-13 06:04:44,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:04:44,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2020-10-13 06:04:44,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 589. [2020-10-13 06:04:44,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-10-13 06:04:44,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 675 transitions. [2020-10-13 06:04:44,250 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 675 transitions. Word has length 213 [2020-10-13 06:04:44,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:44,251 INFO L479 AbstractCegarLoop]: Abstraction has 589 states and 675 transitions. [2020-10-13 06:04:44,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:44,251 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 675 transitions. [2020-10-13 06:04:44,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-10-13 06:04:44,254 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:44,254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:04:44,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:04:44,254 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:44,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:44,255 INFO L82 PathProgramCache]: Analyzing trace with hash 942286423, now seen corresponding path program 1 times [2020-10-13 06:04:44,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:44,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [531162903] [2020-10-13 06:04:44,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:44,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:44,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:44,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:44,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:44,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:45,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:45,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-10-13 06:04:45,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:04:45,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1658 [2020-10-13 06:04:45,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:45,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:45,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-13 06:04:45,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:04:45,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:46,450 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-13 06:04:46,612 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 06:04:46,766 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2020-10-13 06:04:46,913 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 34 [2020-10-13 06:04:47,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:47,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:47,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:47,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:47,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:47,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:47,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:04:47,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:47,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:47,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:47,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:47,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:04:47,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:47,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:47,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:47,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:47,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:47,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:04:47,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:47,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:47,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:47,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:47,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:47,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:47,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:47,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:47,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:47,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:47,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:47,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 06:04:47,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:47,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:47,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:47,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:04:47,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:47,635 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-13 06:04:47,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [531162903] [2020-10-13 06:04:47,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:47,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:04:47,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527911888] [2020-10-13 06:04:47,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:04:47,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:47,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:04:47,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:04:47,637 INFO L87 Difference]: Start difference. First operand 589 states and 675 transitions. Second operand 14 states. [2020-10-13 06:04:48,225 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-10-13 06:04:48,462 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-10-13 06:04:48,747 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2020-10-13 06:04:49,030 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2020-10-13 06:04:49,316 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2020-10-13 06:04:49,868 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2020-10-13 06:04:50,187 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-13 06:04:50,482 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-10-13 06:04:50,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:50,838 INFO L93 Difference]: Finished difference Result 1176 states and 1394 transitions. [2020-10-13 06:04:50,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:04:50,841 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 225 [2020-10-13 06:04:50,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:50,844 INFO L225 Difference]: With dead ends: 1176 [2020-10-13 06:04:50,844 INFO L226 Difference]: Without dead ends: 606 [2020-10-13 06:04:50,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=182, Invalid=418, Unknown=0, NotChecked=0, Total=600 [2020-10-13 06:04:50,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-10-13 06:04:50,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 604. [2020-10-13 06:04:50,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 604 states. [2020-10-13 06:04:50,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 691 transitions. [2020-10-13 06:04:50,866 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 691 transitions. Word has length 225 [2020-10-13 06:04:50,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:50,867 INFO L479 AbstractCegarLoop]: Abstraction has 604 states and 691 transitions. [2020-10-13 06:04:50,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:04:50,867 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 691 transitions. [2020-10-13 06:04:50,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-10-13 06:04:50,869 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:50,870 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:04:50,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:04:50,870 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:50,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:50,870 INFO L82 PathProgramCache]: Analyzing trace with hash 486865686, now seen corresponding path program 1 times [2020-10-13 06:04:50,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:50,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [16033381] [2020-10-13 06:04:50,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:50,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:51,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:51,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:51,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:52,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:53,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:53,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-10-13 06:04:53,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:04:53,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2219 [2020-10-13 06:04:53,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:53,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:53,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-13 06:04:53,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 06:04:53,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:53,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:53,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:53,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:53,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:53,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:53,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:04:53,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:53,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:53,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:53,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:53,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:04:53,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:53,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:53,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:53,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:04:53,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:53,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:53,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:53,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:53,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:53,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:53,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:04:53,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:04:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:53,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:53,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:53,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:04:53,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:53,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:04:53,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:53,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:53,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:53,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:53,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:04:53,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:04:53,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:53,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:53,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:53,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 06:04:53,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:53,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-13 06:04:53,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:53,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:53,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:53,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 06:04:53,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:04:54,070 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-13 06:04:54,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [16033381] [2020-10-13 06:04:54,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:54,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:04:54,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234539749] [2020-10-13 06:04:54,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:04:54,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:54,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:04:54,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:04:54,080 INFO L87 Difference]: Start difference. First operand 604 states and 691 transitions. Second operand 5 states. [2020-10-13 06:04:54,714 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-13 06:04:55,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:55,354 INFO L93 Difference]: Finished difference Result 1228 states and 1459 transitions. [2020-10-13 06:04:55,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:55,355 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 227 [2020-10-13 06:04:55,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:55,357 INFO L225 Difference]: With dead ends: 1228 [2020-10-13 06:04:55,357 INFO L226 Difference]: Without dead ends: 271 [2020-10-13 06:04:55,359 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:04:55,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-10-13 06:04:55,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2020-10-13 06:04:55,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-10-13 06:04:55,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 302 transitions. [2020-10-13 06:04:55,368 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 302 transitions. Word has length 227 [2020-10-13 06:04:55,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:55,368 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 302 transitions. [2020-10-13 06:04:55,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:04:55,368 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 302 transitions. [2020-10-13 06:04:55,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-10-13 06:04:55,371 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:55,371 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:04:55,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:04:55,371 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:55,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:55,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1841033234, now seen corresponding path program 1 times [2020-10-13 06:04:55,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:55,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1211524407] [2020-10-13 06:04:55,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:55,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:55,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:55,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:55,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:55,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:57,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:59,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:59,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-13 06:04:59,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:04:59,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3633 [2020-10-13 06:04:59,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:59,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:59,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-10-13 06:04:59,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:04:59,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:59,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:59,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:59,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:59,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:59,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:59,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:59,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:59,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:59,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:59,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:59,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:59,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:59,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:59,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:59,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:59,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:59,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:04:59,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:59,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:59,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:59,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:59,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:59,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:59,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:59,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:59,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:59,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:59,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:59,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:04:59,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:59,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:59,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:59,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:59,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:59,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:59,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:59,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:59,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:59,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:59,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:04:59,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:59,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:59,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:59,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:04:59,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:59,694 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 121 proven. 3 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-13 06:04:59,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1211524407] [2020-10-13 06:04:59,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:59,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:59,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260328520] [2020-10-13 06:04:59,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:59,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:59,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:59,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:59,696 INFO L87 Difference]: Start difference. First operand 271 states and 302 transitions. Second operand 13 states. [2020-10-13 06:05:00,272 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-13 06:05:00,538 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 06:05:00,771 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-13 06:05:00,980 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-13 06:05:01,330 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-13 06:05:01,659 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-10-13 06:05:02,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:02,088 INFO L93 Difference]: Finished difference Result 551 states and 646 transitions. [2020-10-13 06:05:02,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:05:02,089 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 238 [2020-10-13 06:05:02,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:02,092 INFO L225 Difference]: With dead ends: 551 [2020-10-13 06:05:02,092 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:05:02,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:05:02,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:05:02,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:05:02,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:05:02,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 383 transitions. [2020-10-13 06:05:02,103 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 383 transitions. Word has length 238 [2020-10-13 06:05:02,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:02,104 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 383 transitions. [2020-10-13 06:05:02,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:05:02,104 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 383 transitions. [2020-10-13 06:05:02,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-10-13 06:05:02,106 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:02,106 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-13 06:05:02,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:05:02,106 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:02,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:02,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1190520543, now seen corresponding path program 1 times [2020-10-13 06:05:02,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:02,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1500533601] [2020-10-13 06:05:02,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:02,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:02,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:02,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:02,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-13 06:05:02,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:05:02,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 445 [2020-10-13 06:05:02,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:02,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:02,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-13 06:05:02,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:05:02,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:02,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:02,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:02,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:02,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:02,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:02,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:05:02,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:02,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:02,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:02,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:02,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:02,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:02,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:02,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:02,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:05:02,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:02,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 06:05:02,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:02,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:02,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:02,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:02,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:02,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:05:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:02,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:02,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:02,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:05:02,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:02,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:05:02,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:02,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:02,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:02,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:02,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:02,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:05:02,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:02,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:02,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:02,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:05:02,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:02,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:05:02,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:02,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:02,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:02,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:02,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:02,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:05:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:02,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:03,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:03,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 06:05:03,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:03,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:05:03,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:03,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:03,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:03,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 06:05:03,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:03,448 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 132 proven. 4 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-10-13 06:05:03,449 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1500533601] [2020-10-13 06:05:03,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:03,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:05:03,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23899085] [2020-10-13 06:05:03,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:05:03,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:03,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:05:03,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:05:03,454 INFO L87 Difference]: Start difference. First operand 346 states and 383 transitions. Second operand 5 states. [2020-10-13 06:05:04,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:04,387 INFO L93 Difference]: Finished difference Result 708 states and 817 transitions. [2020-10-13 06:05:04,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:05:04,388 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 250 [2020-10-13 06:05:04,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:04,390 INFO L225 Difference]: With dead ends: 708 [2020-10-13 06:05:04,390 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:05:04,392 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:05:04,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:05:04,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:05:04,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:05:04,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 381 transitions. [2020-10-13 06:05:04,402 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 381 transitions. Word has length 250 [2020-10-13 06:05:04,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:04,402 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 381 transitions. [2020-10-13 06:05:04,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:05:04,403 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 381 transitions. [2020-10-13 06:05:04,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-10-13 06:05:04,404 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:04,405 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-13 06:05:04,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:05:04,405 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:04,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:04,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1503547973, now seen corresponding path program 1 times [2020-10-13 06:05:04,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:04,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1267370432] [2020-10-13 06:05:04,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:04,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:04,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:04,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:05,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:05,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-10-13 06:05:05,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:05:05,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 902 [2020-10-13 06:05:05,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:05,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:05:05,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-13 06:05:05,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 06:05:05,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:05,930 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-10-13 06:05:06,093 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 42 [2020-10-13 06:05:06,227 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 38 [2020-10-13 06:05:06,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:06,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:06,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:06,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:06,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:06,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:06,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:06,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:06,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:06,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:06,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:06,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:06,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:06,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:06,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:06,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:06,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:05:06,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:06,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:05:06,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:06,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:06,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:06,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:06,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:06,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:05:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:06,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:06,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:06,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:05:06,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:06,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:05:06,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:06,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:06,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:06,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:06,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:06,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:05:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:06,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:06,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:06,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:05:06,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:06,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:06,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:06,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:06,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:06,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:06,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:06,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:05:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:06,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:06,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:06,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:05:06,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:06,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:05:06,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:06,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:06,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:06,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:05:06,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:06,920 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 135 proven. 4 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-10-13 06:05:06,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1267370432] [2020-10-13 06:05:06,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:06,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:05:06,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259887899] [2020-10-13 06:05:06,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:05:06,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:06,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:05:06,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:05:06,922 INFO L87 Difference]: Start difference. First operand 346 states and 381 transitions. Second operand 13 states. [2020-10-13 06:05:07,622 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 06:05:08,010 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 111 [2020-10-13 06:05:08,349 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 108 [2020-10-13 06:05:08,718 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 105 [2020-10-13 06:05:09,023 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 102 [2020-10-13 06:05:09,450 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 97 [2020-10-13 06:05:09,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:09,798 INFO L93 Difference]: Finished difference Result 698 states and 802 transitions. [2020-10-13 06:05:09,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:05:09,799 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 253 [2020-10-13 06:05:09,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:09,803 INFO L225 Difference]: With dead ends: 698 [2020-10-13 06:05:09,803 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:05:09,804 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:05:09,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:05:09,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:05:09,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:05:09,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 460 transitions. [2020-10-13 06:05:09,817 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 460 transitions. Word has length 253 [2020-10-13 06:05:09,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:09,818 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 460 transitions. [2020-10-13 06:05:09,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:05:09,818 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 460 transitions. [2020-10-13 06:05:09,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-10-13 06:05:09,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:09,820 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-13 06:05:09,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:05:09,821 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:09,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:09,821 INFO L82 PathProgramCache]: Analyzing trace with hash 901315903, now seen corresponding path program 1 times [2020-10-13 06:05:09,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:09,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1204296801] [2020-10-13 06:05:09,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:09,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:10,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:10,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:10,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-10-13 06:05:10,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:05:10,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 439 [2020-10-13 06:05:10,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:10,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:10,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-10-13 06:05:10,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 06:05:10,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:10,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:10,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:10,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:10,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:10,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:10,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:10,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:10,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:10,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:10,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:10,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:10,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:10,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:10,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:10,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:05:10,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:10,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 06:05:10,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:10,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:10,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:10,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:10,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:10,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:05:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:10,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:10,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:10,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:05:10,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:10,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:05:10,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:10,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:10,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:10,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:10,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:10,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:05:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:10,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:10,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:10,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:05:10,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:10,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:05:10,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:10,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:10,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:10,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:10,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:10,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:05:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:10,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:10,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:10,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 06:05:10,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:10,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 06:05:10,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:10,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:10,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:10,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:05:10,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:11,006 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 137 proven. 4 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-13 06:05:11,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1204296801] [2020-10-13 06:05:11,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:11,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:05:11,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892119950] [2020-10-13 06:05:11,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:05:11,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:11,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:05:11,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:05:11,008 INFO L87 Difference]: Start difference. First operand 418 states and 460 transitions. Second operand 5 states. [2020-10-13 06:05:11,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:11,882 INFO L93 Difference]: Finished difference Result 851 states and 970 transitions. [2020-10-13 06:05:11,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:05:11,883 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 255 [2020-10-13 06:05:11,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:11,886 INFO L225 Difference]: With dead ends: 851 [2020-10-13 06:05:11,886 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:05:11,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 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 06:05:11,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:05:11,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:05:11,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:05:11,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 458 transitions. [2020-10-13 06:05:11,902 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 458 transitions. Word has length 255 [2020-10-13 06:05:11,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:11,902 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 458 transitions. [2020-10-13 06:05:11,903 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:05:11,903 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 458 transitions. [2020-10-13 06:05:11,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-10-13 06:05:11,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:11,905 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 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] [2020-10-13 06:05:11,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:05:11,905 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:11,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:11,906 INFO L82 PathProgramCache]: Analyzing trace with hash 569666072, now seen corresponding path program 1 times [2020-10-13 06:05:11,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:11,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [583210711] [2020-10-13 06:05:11,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:11,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:12,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:12,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:12,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:12,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 291 [2020-10-13 06:05:12,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:05:12,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 605 [2020-10-13 06:05:12,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:12,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:12,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 06:05:12,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:05:12,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:12,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:12,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:12,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:12,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:12,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:12,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:12,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:12,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:12,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:12,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:12,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:12,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:12,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:12,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:12,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:12,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:05:12,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:12,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:05:12,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:12,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:12,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:12,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:12,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:12,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:05:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:12,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:12,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:12,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:05:12,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:12,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:05:12,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:12,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:12,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:12,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:12,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:12,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:05:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:12,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:12,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:12,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:05:12,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:12,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:12,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:12,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:12,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:12,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:12,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:12,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:05:12,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:12,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:12,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:12,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:05:12,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:12,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:12,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:12,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:12,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:12,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:12,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:12,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:05:12,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:12,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:12,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:12,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:05:12,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:12,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:05:12,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:12,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:12,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:12,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:05:12,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:12,962 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 154 proven. 5 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-10-13 06:05:12,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [583210711] [2020-10-13 06:05:12,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:12,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:05:12,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44605950] [2020-10-13 06:05:12,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:05:12,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:12,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:05:12,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:05:12,964 INFO L87 Difference]: Start difference. First operand 418 states and 458 transitions. Second operand 5 states. [2020-10-13 06:05:13,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:13,876 INFO L93 Difference]: Finished difference Result 849 states and 963 transitions. [2020-10-13 06:05:13,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:05:13,877 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 273 [2020-10-13 06:05:13,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:13,880 INFO L225 Difference]: With dead ends: 849 [2020-10-13 06:05:13,880 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:05:13,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 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 06:05:13,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:05:13,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:05:13,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:05:13,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 456 transitions. [2020-10-13 06:05:13,893 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 456 transitions. Word has length 273 [2020-10-13 06:05:13,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:13,893 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 456 transitions. [2020-10-13 06:05:13,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:05:13,894 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 456 transitions. [2020-10-13 06:05:13,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-10-13 06:05:13,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:13,896 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:05:13,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:05:13,896 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:13,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:13,897 INFO L82 PathProgramCache]: Analyzing trace with hash -273531381, now seen corresponding path program 1 times [2020-10-13 06:05:13,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:13,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1302976954] [2020-10-13 06:05:13,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:13,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:13,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:14,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:14,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:14,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-10-13 06:05:14,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:05:14,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 573 [2020-10-13 06:05:14,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:14,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:14,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 06:05:14,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 06:05:14,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:14,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:14,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:14,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:14,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:14,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:14,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:05:14,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:14,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:14,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:14,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:14,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:14,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:14,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:14,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:14,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:05:14,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:14,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:05:14,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:14,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:14,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:14,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:14,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:14,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:05:14,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:14,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:14,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:14,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:05:14,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:14,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:05:14,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:14,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:14,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:14,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:14,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:14,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:05:14,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:14,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:14,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:14,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:05:14,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:14,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:05:14,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:14,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:14,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:14,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:14,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:14,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:05:14,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:14,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:14,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:14,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:05:14,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:14,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 06:05:14,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:14,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:14,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:14,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:05:14,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:15,141 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 154 proven. 4 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-10-13 06:05:15,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1302976954] [2020-10-13 06:05:15,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:15,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:05:15,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815226832] [2020-10-13 06:05:15,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:05:15,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:15,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:05:15,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:05:15,143 INFO L87 Difference]: Start difference. First operand 418 states and 456 transitions. Second operand 6 states. [2020-10-13 06:05:16,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:16,040 INFO L93 Difference]: Finished difference Result 853 states and 962 transitions. [2020-10-13 06:05:16,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:05:16,041 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 272 [2020-10-13 06:05:16,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:16,044 INFO L225 Difference]: With dead ends: 853 [2020-10-13 06:05:16,045 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:05:16,046 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:05:16,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:05:16,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:05:16,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:05:16,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 454 transitions. [2020-10-13 06:05:16,058 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 454 transitions. Word has length 272 [2020-10-13 06:05:16,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:16,059 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 454 transitions. [2020-10-13 06:05:16,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:05:16,059 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 454 transitions. [2020-10-13 06:05:16,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2020-10-13 06:05:16,062 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:16,062 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:05:16,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 06:05:16,062 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:16,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:16,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1867515570, now seen corresponding path program 1 times [2020-10-13 06:05:16,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:16,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [44175591] [2020-10-13 06:05:16,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:16,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:16,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:16,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:16,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:17,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:17,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 300 [2020-10-13 06:05:17,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:05:17,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1759 [2020-10-13 06:05:17,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:17,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:05:17,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-13 06:05:17,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:05:17,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:18,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:18,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:18,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:18,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:18,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:18,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:18,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:18,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:18,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:18,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:18,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:18,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:18,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:18,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:18,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:18,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:05:18,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:18,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:05:18,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:18,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:18,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:18,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:18,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:18,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:05:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:18,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:18,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:18,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:05:18,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:18,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:05:18,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:18,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:18,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:18,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:18,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:18,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:05:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:18,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:18,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:18,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:05:18,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:18,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:18,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:18,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:18,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:18,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:18,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:18,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:05:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:18,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:18,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:18,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:05:18,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:18,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:18,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:18,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:18,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:18,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:18,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:18,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:05:18,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:18,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:18,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:18,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:05:18,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:18,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:05:18,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:18,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:18,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:18,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 06:05:18,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:18,804 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 163 proven. 5 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2020-10-13 06:05:18,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [44175591] [2020-10-13 06:05:18,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:18,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:05:18,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431438366] [2020-10-13 06:05:18,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:05:18,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:18,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:05:18,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:05:18,806 INFO L87 Difference]: Start difference. First operand 418 states and 454 transitions. Second operand 13 states. [2020-10-13 06:05:19,554 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:05:19,882 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:05:20,127 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:05:20,413 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:05:20,703 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:05:20,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:20,974 INFO L93 Difference]: Finished difference Result 835 states and 937 transitions. [2020-10-13 06:05:20,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:05:20,975 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 282 [2020-10-13 06:05:20,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:20,978 INFO L225 Difference]: With dead ends: 835 [2020-10-13 06:05:20,978 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:05:20,980 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:05:20,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:05:20,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:05:20,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:05:20,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 529 transitions. [2020-10-13 06:05:20,995 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 529 transitions. Word has length 282 [2020-10-13 06:05:20,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:20,996 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 529 transitions. [2020-10-13 06:05:20,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:05:20,996 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 529 transitions. [2020-10-13 06:05:20,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2020-10-13 06:05:20,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:20,998 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2020-10-13 06:05:20,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 06:05:20,999 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:20,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:21,000 INFO L82 PathProgramCache]: Analyzing trace with hash -703454073, now seen corresponding path program 1 times [2020-10-13 06:05:21,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:21,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [866206267] [2020-10-13 06:05:21,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:21,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:21,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:21,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:21,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 307 [2020-10-13 06:05:21,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:05:21,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 545 [2020-10-13 06:05:21,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:21,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:21,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-13 06:05:21,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 06:05:21,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:21,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:21,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:21,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:21,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:21,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:21,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:05:21,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:21,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:21,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:21,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:21,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:21,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:21,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:21,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:21,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:05:21,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:21,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:05:21,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:21,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:21,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:21,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:21,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:21,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:05:21,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:21,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:21,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:21,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:05:21,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:21,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:05:21,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:21,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:21,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:21,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:21,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:21,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:05:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:21,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:21,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:21,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:05:21,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:21,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:21,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:21,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:21,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:21,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:21,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:21,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:05:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:21,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:21,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:21,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 06:05:21,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:21,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 06:05:21,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:21,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:21,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:21,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 06:05:21,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:22,096 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 173 proven. 4 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2020-10-13 06:05:22,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [866206267] [2020-10-13 06:05:22,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:22,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:05:22,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435219668] [2020-10-13 06:05:22,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:05:22,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:22,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:05:22,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:05:22,098 INFO L87 Difference]: Start difference. First operand 483 states and 529 transitions. Second operand 6 states. [2020-10-13 06:05:23,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:23,005 INFO L93 Difference]: Finished difference Result 984 states and 1109 transitions. [2020-10-13 06:05:23,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:05:23,005 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 291 [2020-10-13 06:05:23,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:23,008 INFO L225 Difference]: With dead ends: 984 [2020-10-13 06:05:23,008 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:05:23,010 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:05:23,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:05:23,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:05:23,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:05:23,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 527 transitions. [2020-10-13 06:05:23,022 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 527 transitions. Word has length 291 [2020-10-13 06:05:23,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:23,023 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 527 transitions. [2020-10-13 06:05:23,023 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:05:23,023 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 527 transitions. [2020-10-13 06:05:23,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-10-13 06:05:23,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:23,026 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-13 06:05:23,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 06:05:23,026 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:23,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:23,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1681541546, now seen corresponding path program 1 times [2020-10-13 06:05:23,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:23,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1504119516] [2020-10-13 06:05:23,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:23,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:23,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:23,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:23,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 314 [2020-10-13 06:05:23,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:05:23,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 613 [2020-10-13 06:05:23,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:23,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:23,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-13 06:05:23,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 06:05:23,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:23,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:23,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:23,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:23,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:23,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:23,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:23,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:23,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:23,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:23,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:23,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:23,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:23,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:23,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:23,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:05:23,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:23,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:05:23,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:23,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:23,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:23,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:23,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:23,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:05:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:23,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:23,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:23,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:05:23,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:23,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:05:23,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:23,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:23,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:23,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:23,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:23,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:05:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:23,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:23,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:23,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:05:23,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:23,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:23,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:23,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:23,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:23,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:23,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:23,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:05:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:23,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:23,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:23,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:05:23,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:23,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:23,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:23,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:23,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:23,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:23,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:23,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:05:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:23,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:23,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:23,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 06:05:23,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:23,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:05:23,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:23,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:23,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:23,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 06:05:23,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:24,151 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 177 proven. 5 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-10-13 06:05:24,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1504119516] [2020-10-13 06:05:24,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:24,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:05:24,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101976894] [2020-10-13 06:05:24,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:05:24,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:24,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:05:24,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:05:24,153 INFO L87 Difference]: Start difference. First operand 483 states and 527 transitions. Second operand 5 states. [2020-10-13 06:05:25,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:25,042 INFO L93 Difference]: Finished difference Result 978 states and 1098 transitions. [2020-10-13 06:05:25,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:05:25,044 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 296 [2020-10-13 06:05:25,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:25,046 INFO L225 Difference]: With dead ends: 978 [2020-10-13 06:05:25,046 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:05:25,047 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 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 06:05:25,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:05:25,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:05:25,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:05:25,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 525 transitions. [2020-10-13 06:05:25,059 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 525 transitions. Word has length 296 [2020-10-13 06:05:25,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:25,061 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 525 transitions. [2020-10-13 06:05:25,061 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:05:25,061 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 525 transitions. [2020-10-13 06:05:25,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-10-13 06:05:25,064 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:25,064 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-13 06:05:25,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 06:05:25,064 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:25,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:25,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1919550198, now seen corresponding path program 1 times [2020-10-13 06:05:25,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:25,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1790600319] [2020-10-13 06:05:25,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:25,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:25,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:25,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:27,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:27,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 320 [2020-10-13 06:05:27,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:05:27,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1976 [2020-10-13 06:05:27,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:27,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:05:27,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 209 [2020-10-13 06:05:27,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:05:27,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:27,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:27,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:27,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:27,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:27,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:27,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:27,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:27,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:27,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:27,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:27,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:27,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:27,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:27,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:27,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:27,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:05:27,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:27,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:05:27,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:27,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:27,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:27,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:27,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:27,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:05:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:27,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:27,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:27,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:05:27,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:27,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:05:27,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:27,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:27,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:27,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:27,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:27,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:05:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:27,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:27,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:27,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:05:27,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:27,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:27,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:27,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:27,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:27,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:27,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:27,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:05:27,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:27,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:27,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:27,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:05:27,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:27,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:27,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:27,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:27,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:27,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:27,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:27,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:05:27,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:27,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:27,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:27,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:05:27,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:27,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:05:27,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:27,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:27,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:27,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 06:05:27,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:27,812 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 183 proven. 5 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2020-10-13 06:05:27,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1790600319] [2020-10-13 06:05:27,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:27,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:05:27,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450097132] [2020-10-13 06:05:27,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:05:27,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:27,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:05:27,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:05:27,813 INFO L87 Difference]: Start difference. First operand 483 states and 525 transitions. Second operand 13 states. [2020-10-13 06:05:28,655 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:05:28,885 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:05:29,153 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:05:29,376 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:05:29,722 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:05:30,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:30,102 INFO L93 Difference]: Finished difference Result 962 states and 1072 transitions. [2020-10-13 06:05:30,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:05:30,103 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 302 [2020-10-13 06:05:30,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:30,106 INFO L225 Difference]: With dead ends: 962 [2020-10-13 06:05:30,106 INFO L226 Difference]: Without dead ends: 545 [2020-10-13 06:05:30,108 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:05:30,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2020-10-13 06:05:30,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 539. [2020-10-13 06:05:30,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:05:30,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 589 transitions. [2020-10-13 06:05:30,121 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 589 transitions. Word has length 302 [2020-10-13 06:05:30,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:30,121 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 589 transitions. [2020-10-13 06:05:30,121 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:05:30,121 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 589 transitions. [2020-10-13 06:05:30,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2020-10-13 06:05:30,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:30,124 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-13 06:05:30,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 06:05:30,125 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:30,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:30,125 INFO L82 PathProgramCache]: Analyzing trace with hash 414494099, now seen corresponding path program 1 times [2020-10-13 06:05:30,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:30,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1052866128] [2020-10-13 06:05:30,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:30,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:30,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:30,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:30,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 327 [2020-10-13 06:05:30,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:05:30,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 451 [2020-10-13 06:05:30,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:30,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:30,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:05:30,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 06:05:30,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:30,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:30,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:30,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:30,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:30,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:30,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:30,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:30,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:30,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:30,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:30,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:30,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:30,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:30,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:30,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:30,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:05:30,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:30,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:05:30,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:30,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:30,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:30,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:30,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:30,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:05:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:30,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:30,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:30,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:05:30,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:30,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:05:30,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:30,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:30,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:30,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:30,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:30,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:05:30,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:30,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:30,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:30,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:05:30,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:30,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:30,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:30,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:30,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:30,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:30,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:30,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:05:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:30,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:30,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:30,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:05:30,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:30,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:30,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:30,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:30,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:30,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:30,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:30,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:05:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:30,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:30,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:30,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:05:30,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:30,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:05:30,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:30,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:30,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:30,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:30,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:30,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:05:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:30,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:30,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:30,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 06:05:30,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:30,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:05:30,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:30,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:30,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:30,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:05:30,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:31,029 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 187 proven. 6 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-10-13 06:05:31,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1052866128] [2020-10-13 06:05:31,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:31,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:05:31,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198868250] [2020-10-13 06:05:31,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:05:31,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:31,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:05:31,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:05:31,031 INFO L87 Difference]: Start difference. First operand 539 states and 589 transitions. Second operand 5 states. [2020-10-13 06:05:31,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:31,874 INFO L93 Difference]: Finished difference Result 1088 states and 1221 transitions. [2020-10-13 06:05:31,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:05:31,875 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 307 [2020-10-13 06:05:31,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:31,878 INFO L225 Difference]: With dead ends: 1088 [2020-10-13 06:05:31,879 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:05:31,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 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 06:05:31,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:05:31,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2020-10-13 06:05:31,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:05:31,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 587 transitions. [2020-10-13 06:05:31,892 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 587 transitions. Word has length 307 [2020-10-13 06:05:31,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:31,893 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 587 transitions. [2020-10-13 06:05:31,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:05:31,893 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 587 transitions. [2020-10-13 06:05:31,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2020-10-13 06:05:31,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:31,895 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:05:31,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 06:05:31,895 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:31,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:31,895 INFO L82 PathProgramCache]: Analyzing trace with hash -303247441, now seen corresponding path program 1 times [2020-10-13 06:05:31,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:31,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1757148057] [2020-10-13 06:05:31,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:31,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:31,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:32,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:32,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:32,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 327 [2020-10-13 06:05:32,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:05:32,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 383 [2020-10-13 06:05:32,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:32,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:32,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:05:32,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-13 06:05:32,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:32,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:32,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:32,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:32,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:32,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:32,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:05:32,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:32,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:32,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:32,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:32,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:32,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:32,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:32,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:32,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:05:32,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:32,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:05:32,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:32,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:32,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:32,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:32,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:32,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:05:32,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:32,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:32,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:32,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:05:32,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:32,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 06:05:32,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:32,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:32,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:32,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:32,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:32,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:05:32,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:32,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:32,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:32,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:05:32,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:32,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:32,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:32,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:32,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:32,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:32,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:32,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:05:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:32,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:32,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:32,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 06:05:32,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:32,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-13 06:05:32,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:32,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:32,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:32,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:05:32,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:32,880 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 193 proven. 4 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-10-13 06:05:32,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1757148057] [2020-10-13 06:05:32,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:32,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:05:32,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071127513] [2020-10-13 06:05:32,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:05:32,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:32,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:05:32,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:05:32,882 INFO L87 Difference]: Start difference. First operand 539 states and 587 transitions. Second operand 5 states. [2020-10-13 06:05:33,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:33,718 INFO L93 Difference]: Finished difference Result 1097 states and 1224 transitions. [2020-10-13 06:05:33,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:05:33,719 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 311 [2020-10-13 06:05:33,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:33,722 INFO L225 Difference]: With dead ends: 1097 [2020-10-13 06:05:33,722 INFO L226 Difference]: Without dead ends: 481 [2020-10-13 06:05:33,723 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 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 06:05:33,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-10-13 06:05:33,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2020-10-13 06:05:33,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-10-13 06:05:33,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 526 transitions. [2020-10-13 06:05:33,734 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 526 transitions. Word has length 311 [2020-10-13 06:05:33,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:33,735 INFO L479 AbstractCegarLoop]: Abstraction has 481 states and 526 transitions. [2020-10-13 06:05:33,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:05:33,735 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 526 transitions. [2020-10-13 06:05:33,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-10-13 06:05:33,738 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:33,740 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-13 06:05:33,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 06:05:33,741 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:33,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:33,741 INFO L82 PathProgramCache]: Analyzing trace with hash -964954161, now seen corresponding path program 1 times [2020-10-13 06:05:33,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:33,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [326395967] [2020-10-13 06:05:33,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:33,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:33,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:33,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:34,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:34,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:36,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:36,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 340 [2020-10-13 06:05:36,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:05:36,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2871 [2020-10-13 06:05:36,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:36,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:05:36,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-13 06:05:36,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:05:36,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:36,989 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2020-10-13 06:05:37,112 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2020-10-13 06:05:37,284 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 43 [2020-10-13 06:05:37,476 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 42 [2020-10-13 06:05:37,648 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 40 [2020-10-13 06:05:37,823 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 39 [2020-10-13 06:05:37,982 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 36 [2020-10-13 06:05:38,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:38,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:38,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:38,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:38,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:38,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:38,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:38,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:38,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:38,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:38,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:38,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:38,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:38,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:38,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:38,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:38,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:05:38,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:38,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:05:38,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:38,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:38,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:38,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:38,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:38,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:05:38,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:38,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:38,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:38,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:05:38,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:38,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:05:38,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:38,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:38,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:38,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:38,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:38,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:05:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:38,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:38,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:38,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:05:38,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:38,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:38,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:38,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:38,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:38,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:38,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:38,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:05:38,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:38,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:38,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:38,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:05:38,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:38,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:38,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:38,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:38,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:38,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:38,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:38,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:05:38,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:38,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:38,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:38,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:05:38,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:38,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:05:38,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:38,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:38,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:38,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:38,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:38,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:05:38,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:38,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:38,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:38,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 06:05:38,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:38,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:05:38,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:38,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:38,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:38,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 06:05:38,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:38,389 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 200 proven. 6 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2020-10-13 06:05:38,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [326395967] [2020-10-13 06:05:38,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:38,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:05:38,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835260062] [2020-10-13 06:05:38,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:05:38,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:38,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:05:38,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:05:38,391 INFO L87 Difference]: Start difference. First operand 481 states and 526 transitions. Second operand 13 states. [2020-10-13 06:05:39,076 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-13 06:05:39,216 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-13 06:05:39,493 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 95 [2020-10-13 06:05:39,782 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 94 [2020-10-13 06:05:40,033 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 93 [2020-10-13 06:05:40,409 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92 [2020-10-13 06:05:40,747 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2020-10-13 06:05:41,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:41,273 INFO L93 Difference]: Finished difference Result 969 states and 1090 transitions. [2020-10-13 06:05:41,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:05:41,279 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 320 [2020-10-13 06:05:41,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:41,281 INFO L225 Difference]: With dead ends: 969 [2020-10-13 06:05:41,281 INFO L226 Difference]: Without dead ends: 496 [2020-10-13 06:05:41,282 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=131, Invalid=249, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:05:41,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-10-13 06:05:41,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 483. [2020-10-13 06:05:41,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:05:41,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 529 transitions. [2020-10-13 06:05:41,294 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 529 transitions. Word has length 320 [2020-10-13 06:05:41,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:41,295 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 529 transitions. [2020-10-13 06:05:41,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:05:41,295 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 529 transitions. [2020-10-13 06:05:41,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2020-10-13 06:05:41,297 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:41,298 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-13 06:05:41,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 06:05:41,298 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:41,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:41,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1896793284, now seen corresponding path program 1 times [2020-10-13 06:05:41,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:41,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1835415548] [2020-10-13 06:05:41,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:41,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:41,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:41,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:41,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:42,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:42,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 341 [2020-10-13 06:05:42,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:05:42,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1162 [2020-10-13 06:05:42,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:42,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:42,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-10-13 06:05:42,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:05:42,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:42,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:42,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:42,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:42,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:42,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:42,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:42,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:42,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:42,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:42,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:42,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:42,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:42,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:42,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:42,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:42,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:05:42,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:42,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:05:42,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:42,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:42,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:42,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:42,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:42,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:05:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:42,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:42,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:42,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:05:42,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:42,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:05:42,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:42,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:42,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:42,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:42,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:42,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:05:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:42,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:42,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:42,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:05:42,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:42,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:42,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:42,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:42,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:42,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:42,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:42,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:05:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:42,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:42,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:42,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:05:42,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:42,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:05:42,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:42,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:42,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:42,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:42,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:42,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:05:42,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:42,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:42,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:42,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 06:05:42,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:42,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 06:05:42,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:42,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:42,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:42,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:05:42,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:43,030 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 204 proven. 5 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-13 06:05:43,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1835415548] [2020-10-13 06:05:43,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:43,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:05:43,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064540675] [2020-10-13 06:05:43,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:05:43,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:43,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:05:43,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:05:43,031 INFO L87 Difference]: Start difference. First operand 483 states and 529 transitions. Second operand 5 states. [2020-10-13 06:05:43,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:43,847 INFO L93 Difference]: Finished difference Result 980 states and 1104 transitions. [2020-10-13 06:05:43,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:05:43,848 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 323 [2020-10-13 06:05:43,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:43,851 INFO L225 Difference]: With dead ends: 980 [2020-10-13 06:05:43,851 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:05:43,852 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 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 06:05:43,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:05:43,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:05:43,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:05:43,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 527 transitions. [2020-10-13 06:05:43,862 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 527 transitions. Word has length 323 [2020-10-13 06:05:43,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:43,862 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 527 transitions. [2020-10-13 06:05:43,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:05:43,863 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 527 transitions. [2020-10-13 06:05:43,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-10-13 06:05:43,865 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:43,865 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 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] [2020-10-13 06:05:43,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 06:05:43,865 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:43,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:43,866 INFO L82 PathProgramCache]: Analyzing trace with hash 267122791, now seen corresponding path program 1 times [2020-10-13 06:05:43,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:43,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1461451929] [2020-10-13 06:05:43,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:43,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:44,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:44,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:44,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:47,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:47,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 345 [2020-10-13 06:05:47,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:05:47,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3394 [2020-10-13 06:05:47,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:47,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:05:47,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 234 [2020-10-13 06:05:47,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:05:47,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:47,877 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 42 [2020-10-13 06:05:48,031 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 41 [2020-10-13 06:05:48,194 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 39 [2020-10-13 06:05:48,347 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 37 [2020-10-13 06:05:48,499 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 35 [2020-10-13 06:05:48,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:48,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:48,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:48,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:48,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:48,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:48,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:48,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:48,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:48,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:48,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:48,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:48,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:48,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:48,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:05:48,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:48,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:05:48,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:48,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:48,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:48,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:48,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:48,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:05:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:48,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:48,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:48,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:05:48,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:48,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:05:48,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:48,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:48,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:48,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:48,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:48,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:05:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:48,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:48,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:48,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:05:48,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:48,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:48,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:48,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:48,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:05:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:48,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:48,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:48,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:05:48,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:48,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:48,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:48,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:48,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:48,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:48,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:48,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:05:48,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:48,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:48,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:48,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:05:48,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:48,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:05:48,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:48,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:48,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:48,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:48,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:48,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:05:48,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:48,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:48,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:48,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 06:05:48,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:48,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 06:05:48,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:48,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:48,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:48,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:05:48,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:48,921 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 205 proven. 6 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-10-13 06:05:48,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1461451929] [2020-10-13 06:05:48,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:48,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:05:48,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326778955] [2020-10-13 06:05:48,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:05:48,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:48,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:05:48,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:05:48,922 INFO L87 Difference]: Start difference. First operand 483 states and 527 transitions. Second operand 13 states. [2020-10-13 06:05:49,592 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-13 06:05:49,724 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-13 06:05:50,072 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 94 [2020-10-13 06:05:50,256 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2020-10-13 06:05:50,512 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 93 [2020-10-13 06:05:50,822 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2020-10-13 06:05:51,074 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 91 [2020-10-13 06:05:51,369 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2020-10-13 06:05:51,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:51,729 INFO L93 Difference]: Finished difference Result 956 states and 1072 transitions. [2020-10-13 06:05:51,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:05:51,729 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 325 [2020-10-13 06:05:51,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:51,732 INFO L225 Difference]: With dead ends: 956 [2020-10-13 06:05:51,732 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:05:51,734 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:05:51,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:05:51,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 537. [2020-10-13 06:05:51,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:05:51,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 591 transitions. [2020-10-13 06:05:51,745 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 591 transitions. Word has length 325 [2020-10-13 06:05:51,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:51,746 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 591 transitions. [2020-10-13 06:05:51,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:05:51,746 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 591 transitions. [2020-10-13 06:05:51,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2020-10-13 06:05:51,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:51,748 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 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] [2020-10-13 06:05:51,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-13 06:05:51,748 INFO L427 AbstractCegarLoop]: === Iteration 29 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:51,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:51,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1239995995, now seen corresponding path program 1 times [2020-10-13 06:05:51,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:51,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [779612567] [2020-10-13 06:05:51,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:51,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:51,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:52,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:52,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:53,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:53,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 346 [2020-10-13 06:05:53,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:05:53,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1779 [2020-10-13 06:05:53,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:53,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:53,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 235 [2020-10-13 06:05:53,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 06:05:53,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:53,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:53,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:53,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:53,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:53,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:53,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:53,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:53,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:53,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:53,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:53,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:53,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:53,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:53,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:53,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:53,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:05:53,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:53,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:05:53,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:53,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:53,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:53,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:53,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:53,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:05:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:53,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:53,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:53,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:05:53,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:53,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:05:53,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:53,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:53,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:53,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:53,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:53,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:05:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:53,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:53,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:53,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:05:53,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:53,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:53,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:53,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:53,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:53,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:53,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:53,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:05:53,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:53,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:53,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:53,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:05:53,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:53,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:53,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:53,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:53,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:53,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:53,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:53,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:05:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:53,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:53,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:53,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:05:53,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:53,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:05:53,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:53,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:53,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:53,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:53,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:53,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:05:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:53,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:53,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:53,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 06:05:53,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:53,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:05:53,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:53,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:53,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:53,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 06:05:53,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:54,136 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 206 proven. 6 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2020-10-13 06:05:54,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [779612567] [2020-10-13 06:05:54,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:54,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:05:54,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467170086] [2020-10-13 06:05:54,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:05:54,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:54,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:05:54,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:05:54,138 INFO L87 Difference]: Start difference. First operand 537 states and 591 transitions. Second operand 5 states. [2020-10-13 06:05:55,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:55,039 INFO L93 Difference]: Finished difference Result 1083 states and 1222 transitions. [2020-10-13 06:05:55,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:05:55,040 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 326 [2020-10-13 06:05:55,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:55,043 INFO L225 Difference]: With dead ends: 1083 [2020-10-13 06:05:55,044 INFO L226 Difference]: Without dead ends: 537 [2020-10-13 06:05:55,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 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 06:05:55,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2020-10-13 06:05:55,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2020-10-13 06:05:55,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:05:55,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 588 transitions. [2020-10-13 06:05:55,058 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 588 transitions. Word has length 326 [2020-10-13 06:05:55,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:55,059 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 588 transitions. [2020-10-13 06:05:55,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:05:55,059 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 588 transitions. [2020-10-13 06:05:55,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-10-13 06:05:55,061 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:55,061 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-13 06:05:55,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-13 06:05:55,062 INFO L427 AbstractCegarLoop]: === Iteration 30 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:55,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:55,062 INFO L82 PathProgramCache]: Analyzing trace with hash 149162496, now seen corresponding path program 1 times [2020-10-13 06:05:55,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:55,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1519525097] [2020-10-13 06:05:55,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:55,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:55,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:55,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:55,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:55,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:55,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 343 [2020-10-13 06:05:55,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:05:55,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 770 [2020-10-13 06:05:55,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:55,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:55,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 232 [2020-10-13 06:05:55,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 06:05:55,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:56,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:56,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:56,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:56,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:56,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:56,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:56,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:56,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:56,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:56,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:56,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:56,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:56,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:56,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:56,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:05:56,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:56,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:05:56,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:56,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:56,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:56,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:56,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:56,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:05:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:56,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:56,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:56,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:05:56,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:56,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:05:56,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:56,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:56,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:56,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:56,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:56,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:05:56,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:56,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:56,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:56,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:05:56,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:56,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:56,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:56,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:56,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:56,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:56,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:56,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:05:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:56,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:56,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:56,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:05:56,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:56,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:05:56,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:56,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:56,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:56,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:56,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:56,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:05:56,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:56,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:56,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:56,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 06:05:56,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:56,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 06:05:56,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:56,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:56,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:56,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 06:05:56,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:56,390 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 206 proven. 5 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-13 06:05:56,390 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1519525097] [2020-10-13 06:05:56,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:56,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:05:56,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857592842] [2020-10-13 06:05:56,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:05:56,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:56,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:05:56,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:05:56,391 INFO L87 Difference]: Start difference. First operand 537 states and 588 transitions. Second operand 5 states. [2020-10-13 06:05:57,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:57,292 INFO L93 Difference]: Finished difference Result 1085 states and 1217 transitions. [2020-10-13 06:05:57,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:05:57,293 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 325 [2020-10-13 06:05:57,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:57,296 INFO L225 Difference]: With dead ends: 1085 [2020-10-13 06:05:57,296 INFO L226 Difference]: Without dead ends: 514 [2020-10-13 06:05:57,297 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 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 06:05:57,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-10-13 06:05:57,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2020-10-13 06:05:57,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2020-10-13 06:05:57,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 562 transitions. [2020-10-13 06:05:57,309 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 562 transitions. Word has length 325 [2020-10-13 06:05:57,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:57,310 INFO L479 AbstractCegarLoop]: Abstraction has 514 states and 562 transitions. [2020-10-13 06:05:57,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:05:57,310 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 562 transitions. [2020-10-13 06:05:57,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2020-10-13 06:05:57,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:57,312 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 5, 5, 4, 4, 4, 4, 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] [2020-10-13 06:05:57,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-13 06:05:57,313 INFO L427 AbstractCegarLoop]: === Iteration 31 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:57,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:57,313 INFO L82 PathProgramCache]: Analyzing trace with hash 479778323, now seen corresponding path program 1 times [2020-10-13 06:05:57,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:57,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [945400514] [2020-10-13 06:05:57,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:57,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:57,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:57,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:57,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:57,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 367 [2020-10-13 06:05:57,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:05:57,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 474 [2020-10-13 06:05:57,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:57,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:57,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 256 [2020-10-13 06:05:57,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 06:05:57,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:58,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:58,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:58,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:58,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:58,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:58,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:58,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:58,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:58,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:58,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:58,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:58,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:58,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:58,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:58,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:58,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:05:58,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:58,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:05:58,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:58,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:58,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:58,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:58,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:58,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:05:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:58,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:58,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:58,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:05:58,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:58,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:05:58,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:58,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:58,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:58,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:58,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:58,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:05:58,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:58,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:58,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:58,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:05:58,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:58,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:58,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:58,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:58,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:58,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:58,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:58,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:05:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:58,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:58,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:58,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:05:58,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:58,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:58,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:58,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:58,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:58,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:58,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:58,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:05:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:58,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:58,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:58,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:05:58,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:58,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:05:58,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:58,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:58,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:58,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:58,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:58,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:05:58,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:58,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:58,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:58,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 06:05:58,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:58,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 06:05:58,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:58,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:58,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:58,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-13 06:05:58,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:58,367 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 227 proven. 6 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2020-10-13 06:05:58,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [945400514] [2020-10-13 06:05:58,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:58,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:05:58,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059870303] [2020-10-13 06:05:58,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:05:58,368 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:58,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:05:58,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:05:58,369 INFO L87 Difference]: Start difference. First operand 514 states and 562 transitions. Second operand 7 states. [2020-10-13 06:05:58,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:58,967 INFO L93 Difference]: Finished difference Result 897 states and 993 transitions. [2020-10-13 06:05:58,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:05:58,968 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 347 [2020-10-13 06:05:58,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:58,969 INFO L225 Difference]: With dead ends: 897 [2020-10-13 06:05:58,969 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:05:58,971 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:05:58,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:05:58,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:05:58,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:05:58,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:05:58,972 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 347 [2020-10-13 06:05:58,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:58,972 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:05:58,972 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:05:58,972 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:05:58,972 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:05:58,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-13 06:05:58,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:05:59,773 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 181 [2020-10-13 06:05:59,914 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 162 [2020-10-13 06:06:00,075 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 52 [2020-10-13 06:06:08,138 WARN L193 SmtUtils]: Spent 8.05 s on a formula simplification. DAG size of input: 362 DAG size of output: 271 [2020-10-13 06:06:10,070 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 191 DAG size of output: 158 [2020-10-13 06:06:12,236 WARN L193 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 171 DAG size of output: 127 [2020-10-13 06:06:12,241 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:06:12,242 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-13 06:06:12,242 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:06:12,242 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-13 06:06:12,242 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-13 06:06:12,243 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,243 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,243 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,243 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,243 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,244 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,244 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-13 06:06:12,244 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-13 06:06:12,244 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-13 06:06:12,244 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-13 06:06:12,244 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-13 06:06:12,244 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-13 06:06:12,244 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-13 06:06:12,244 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-13 06:06:12,245 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-13 06:06:12,245 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-13 06:06:12,245 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,245 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,245 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,245 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,245 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,245 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,245 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-13 06:06:12,245 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-13 06:06:12,246 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-13 06:06:12,246 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-13 06:06:12,246 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-13 06:06:12,246 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-13 06:06:12,246 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-13 06:06:12,246 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-13 06:06:12,246 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-13 06:06:12,246 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-13 06:06:12,247 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-13 06:06:12,247 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 491) no Hoare annotation was computed. [2020-10-13 06:06:12,247 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-13 06:06:12,247 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-13 06:06:12,247 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-13 06:06:12,247 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-13 06:06:12,247 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,247 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,247 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,248 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,248 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,248 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-13 06:06:12,248 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-13 06:06:12,248 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-13 06:06:12,248 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-13 06:06:12,248 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-13 06:06:12,248 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-13 06:06:12,248 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-13 06:06:12,249 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-13 06:06:12,249 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-13 06:06:12,249 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,249 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,249 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,249 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,249 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,249 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-13 06:06:12,249 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-13 06:06:12,250 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-13 06:06:12,250 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-13 06:06:12,250 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-13 06:06:12,250 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-13 06:06:12,250 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-13 06:06:12,250 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-13 06:06:12,250 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-13 06:06:12,250 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-13 06:06:12,250 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-13 06:06:12,250 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-13 06:06:12,251 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-13 06:06:12,251 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,251 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,251 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,251 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,251 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,251 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-13 06:06:12,251 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-13 06:06:12,251 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-13 06:06:12,252 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-13 06:06:12,252 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-13 06:06:12,252 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-13 06:06:12,252 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-13 06:06:12,252 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-13 06:06:12,252 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-13 06:06:12,252 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,252 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,252 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,252 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,253 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,253 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,253 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-13 06:06:12,253 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,253 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-13 06:06:12,253 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-13 06:06:12,253 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-13 06:06:12,253 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-13 06:06:12,253 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-13 06:06:12,254 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-13 06:06:12,254 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-13 06:06:12,254 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-13 06:06:12,254 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-13 06:06:12,254 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-13 06:06:12,254 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-13 06:06:12,254 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-13 06:06:12,254 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-13 06:06:12,254 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,254 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,254 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,255 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,255 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,255 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-13 06:06:12,255 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-13 06:06:12,255 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-13 06:06:12,255 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-13 06:06:12,255 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-13 06:06:12,255 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-13 06:06:12,255 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-13 06:06:12,256 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-13 06:06:12,256 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,256 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,256 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,256 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,256 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,256 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-13 06:06:12,256 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-13 06:06:12,256 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-13 06:06:12,256 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-13 06:06:12,256 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-13 06:06:12,256 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-13 06:06:12,256 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-13 06:06:12,256 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-13 06:06:12,256 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-13 06:06:12,256 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-13 06:06:12,258 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse16 (= |old(~a21~0)| 1)) (.cse50 (= ~a21~0 1)) (.cse64 (= ~a8~0 15)) (.cse55 (= |old(~a7~0)| 1)) (.cse66 (<= ~a16~0 4)) (.cse67 (<= 4 ~a16~0)) (.cse29 (<= ~a8~0 15)) (.cse30 (<= 15 ~a8~0)) (.cse52 (= |old(~a20~0)| 1)) (.cse4 (not (<= |old(~a7~0)| 0))) (.cse63 (= ~a21~0 |old(~a21~0)|)) (.cse74 (= ~a8~0 13)) (.cse73 (= ~a16~0 4)) (.cse24 (= ~a7~0 |old(~a7~0)|)) (.cse23 (= ~a17~0 |old(~a17~0)|)) (.cse25 (= ~a20~0 |old(~a20~0)|)) (.cse26 (= ~a16~0 |old(~a16~0)|)) (.cse53 (= ~a8~0 |old(~a8~0)|)) (.cse27 (<= ~a21~0 1)) (.cse28 (<= 1 ~a21~0))) (let ((.cse37 (and .cse24 .cse23 .cse25 .cse26 .cse53 .cse27 .cse28)) (.cse15 (not (= 0 |old(~a20~0)|))) (.cse45 (= 14 ~a8~0)) (.cse14 (and .cse24 .cse23 .cse63 .cse25 .cse74 .cse73)) (.cse57 (not (= 6 |old(~a16~0)|))) (.cse9 (not (<= |old(~a20~0)| 0))) (.cse59 (and (not (<= |old(~a21~0)| 0)) (not (<= 2 |old(~a21~0)|)))) (.cse60 (not (< 0 |old(~a7~0)|))) (.cse22 (not (<= |old(~a16~0)| 6))) (.cse31 (not (< 5 |old(~a16~0)|))) (.cse65 (< 12 ~a8~0)) (.cse68 (<= ~a8~0 13)) (.cse62 (not (< 12 |old(~a8~0)|))) (.cse19 (and .cse4 (not (<= 2 |old(~a7~0)|)))) (.cse8 (not (<= |old(~a17~0)| 0))) (.cse33 (not (< 0 |old(~a20~0)|))) (.cse42 (not (= 14 |old(~a8~0)|))) (.cse11 (not (= |old(~a8~0)| 13))) (.cse12 (not (= |old(~a17~0)| 1))) (.cse46 (= 5 ~a16~0)) (.cse43 (not .cse52)) (.cse48 (not (= 5 |old(~a16~0)|))) (.cse61 (not (< 0 |old(~a17~0)|))) (.cse38 (not (<= 5 |old(~a16~0)|))) (.cse20 (not (<= |old(~a8~0)| 15))) (.cse69 (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| 2)) (not (<= 2 |calculate_output_#in~input|))) (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))))) (.cse40 (not (<= |old(~a16~0)| 5))) (.cse32 (not (<= 15 |old(~a8~0)|))) (.cse72 (and .cse24 .cse23 .cse25 .cse26 .cse27 .cse28 .cse29 .cse30)) (.cse34 (not (<= 1 |old(~a17~0)|))) (.cse70 (<= 1 ~a7~0)) (.cse47 (<= ~a7~0 1)) (.cse44 (not (<= |old(~a7~0)| 1))) (.cse7 (not (<= 13 |old(~a8~0)|))) (.cse71 (not (<= 1 |old(~a7~0)|))) (.cse5 (not (<= |old(~a8~0)| 13))) (.cse17 (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 2)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) (not (= |calculate_output_#in~input| 6)))) (.cse0 (not (<= 4 |old(~a16~0)|))) (.cse1 (and .cse24 .cse23 .cse25 .cse66 .cse53 .cse67 .cse27 .cse28)) (.cse39 (not (<= 14 |old(~a8~0)|))) (.cse2 (not (<= |old(~a21~0)| 1))) (.cse3 (not (<= 1 |old(~a21~0)|))) (.cse6 (not (<= |old(~a16~0)| 4))) (.cse41 (not (<= |old(~a8~0)| 14))) (.cse35 (not (<= |old(~a17~0)| 1))) (.cse36 (not (<= 1 |old(~a20~0)|))) (.cse21 (not (<= |old(~a20~0)| 1))) (.cse49 (not (= |old(~a17~0)| |old(~a20~0)|))) (.cse13 (not .cse55)) (.cse56 (and .cse24 .cse23 .cse50 .cse25 .cse64 .cse73)) (.cse54 (not (= 15 |old(~a8~0)|))) (.cse51 (not .cse16)) (.cse10 (not (= ~a12~0 8))) (.cse18 (not (= 4 |old(~a16~0)|))) (.cse58 (not (= 0 |old(~a17~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 (and (not (< 1 |old(~a7~0)|)) .cse4) .cse5 .cse6 .cse7 (and (not (< 1 |old(~a17~0)|)) .cse8) (and (not (< 1 |old(~a20~0)|)) .cse9) .cse10) (or .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse10 .cse18) (or .cse19 (and (not (<= 2 |old(~a17~0)|)) .cse8) .cse20 .cse2 .cse21 .cse22 (and .cse23 .cse24 .cse25 .cse26 .cse27 .cse28 .cse29 .cse30) .cse31 .cse32 .cse3 .cse17 .cse10 .cse33) (or .cse4 .cse2 .cse34 .cse7 .cse35 .cse36 .cse21 .cse22 .cse3 .cse5 .cse37 (not (<= 6 |old(~a16~0)|)) .cse10) (or .cse38 .cse39 .cse4 .cse2 .cse40 .cse3 .cse37 .cse41 .cse8 .cse10 .cse9) (or .cse0 .cse1 .cse39 .cse4 .cse2 .cse3 .cse6 .cse41 .cse8 .cse10 .cse21) (or .cse42 .cse2 .cse3 .cse43 .cse44 (not (<= |old(~a20~0)| |old(~a7~0)|)) (and .cse23 .cse25 .cse45 (<= ~a20~0 ~a7~0) .cse27 .cse28 .cse46 .cse47) .cse8 .cse48 .cse10) (or .cse42 .cse49 .cse13 .cse15 (and .cse24 .cse23 .cse50 .cse25 .cse45 .cse46) .cse48 .cse51 .cse10) (or .cse12 .cse52 (and .cse24 .cse50 .cse25 .cse26 .cse53 (= ~a17~0 1)) .cse48 .cse17 .cse54 .cse51 .cse10 .cse55) (or .cse12 .cse52 .cse56 .cse17 .cse54 .cse51 .cse10 .cse18 .cse55) (or (and (or .cse52 .cse57 .cse17 .cse54 .cse51 .cse10 .cse55 .cse58) (or .cse59 .cse44 .cse6 .cse35 .cse21 .cse60 .cse0 .cse61 .cse5 .cse62 .cse17 .cse10 .cse33)) (and .cse24 .cse63 .cse25 (or (and (= ~a16~0 6) .cse64 (not (= ~a20~0 1)) (= ~a17~0 0)) (and (or (<= 2 ~a21~0) (<= ~a21~0 0)) .cse65 (< 0 ~a17~0) .cse66 .cse67 (<= ~a17~0 1) .cse68)))) (or .cse11 .cse13 .cse14 .cse43 .cse16 .cse17 .cse10 .cse18 .cse58) (or .cse12 .cse69 .cse57 (and .cse24 .cse23 .cse50 .cse25 .cse26 .cse64) .cse54 .cse51 .cse10 .cse9 .cse55) (or .cse19 (and .cse24 .cse23 .cse25 .cse66 .cse67 .cse27 .cse28 .cse29 .cse30) .cse20 .cse2 .cse6 .cse8 .cse21 .cse0 .cse69 .cse32 .cse3 .cse10 .cse33) (or (and .cse24 .cse23 .cse50 .cse25 .cse64 .cse46) .cse48 .cse17 .cse54 .cse51 .cse10 .cse55 .cse58) (or .cse38 .cse20 .cse2 .cse40 (and .cse70 .cse23 .cse25 .cse26 .cse27 .cse28 .cse29 .cse30 .cse47) .cse32 .cse71 .cse3 .cse44 .cse8 .cse10 .cse9) (or .cse0 .cse1 .cse4 .cse2 .cse3 .cse5 .cse6 .cse7 .cse35 .cse36 .cse10 .cse21) (or .cse59 .cse44 .cse8 .cse21 .cse60 .cse22 .cse31 (and .cse24 .cse23 .cse65 .cse63 .cse25 .cse26 .cse68) .cse5 .cse62 .cse17 .cse10 .cse33) (or .cse19 .cse38 .cse20 .cse2 .cse8 .cse21 .cse69 .cse40 .cse32 .cse3 .cse72 .cse10 .cse33) (or .cse42 (and .cse24 .cse23 (= ~a21~0 ~a7~0) .cse25 .cse53 .cse73) .cse49 .cse13 .cse10 (not (= |old(~a7~0)| |old(~a21~0)|)) .cse18 .cse58) (or .cse11 .cse12 (not (= 0 |old(~a21~0)|)) .cse69 (and .cse24 .cse23 .cse25 .cse74 (= ~a21~0 0) .cse46) .cse13 .cse43 .cse48 .cse10) (or .cse61 .cse38 .cse20 .cse4 .cse2 .cse69 .cse40 .cse32 .cse3 .cse72 .cse35 .cse10) (or .cse2 .cse34 (and .cse70 .cse23 .cse25 .cse66 .cse53 .cse67 .cse27 .cse28 .cse47) .cse44 .cse6 .cse7 .cse35 .cse36 .cse21 .cse0 .cse71 .cse3 .cse5 .cse10) (or .cse49 .cse56 .cse17 .cse54 .cse51 .cse10 .cse18 .cse58) (or .cse0 .cse1 .cse39 .cse4 .cse2 .cse3 .cse6 .cse41 .cse35 .cse36 .cse10 .cse21) (or .cse49 .cse13 .cse56 .cse54 .cse51 .cse10 .cse18 .cse58)))) [2020-10-13 06:06:12,258 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-13 06:06:12,258 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,258 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,258 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,258 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,258 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-13 06:06:12,258 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,258 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,258 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-13 06:06:12,258 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-13 06:06:12,258 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-13 06:06:12,258 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-13 06:06:12,258 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-13 06:06:12,259 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-13 06:06:12,259 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-13 06:06:12,259 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-13 06:06:12,259 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-13 06:06:12,259 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-13 06:06:12,259 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-13 06:06:12,259 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-13 06:06:12,259 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,259 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,259 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,259 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,259 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,259 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-13 06:06:12,259 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,259 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-13 06:06:12,259 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-13 06:06:12,260 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-13 06:06:12,260 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-13 06:06:12,260 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-13 06:06:12,260 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-13 06:06:12,260 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-13 06:06:12,260 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-13 06:06:12,260 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-13 06:06:12,260 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-13 06:06:12,260 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-13 06:06:12,260 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-13 06:06:12,260 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-13 06:06:12,260 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-13 06:06:12,260 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,260 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,260 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,260 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,260 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,261 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:12,261 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-13 06:06:12,261 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-13 06:06:12,261 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-13 06:06:12,261 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-13 06:06:12,261 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-13 06:06:12,261 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-13 06:06:12,261 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-13 06:06:12,261 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-13 06:06:12,261 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-13 06:06:12,261 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-13 06:06:12,261 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:06:12,261 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 1 ~a20~0) (<= 1 ~a17~0) (<= ~a16~0 5) (= ~a12~0 8) (<= ~a7~0 0) (<= ~a21~0 1) (<= ~a20~0 1) (<= ~a17~0 1) (<= 1 ~a21~0) (<= 5 ~a16~0) (<= ~a8~0 15) (<= 15 ~a8~0)) [2020-10-13 06:06:12,261 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:06:12,262 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:06:12,262 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= 5 |old(~a16~0)|)) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a21~0)| 1)) (not (<= 1 |old(~a17~0)|)) (not (<= |old(~a17~0)| 1)) (not (<= 1 |old(~a20~0)|)) (not (<= |old(~a20~0)| 1)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (<= 1 |old(~a21~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (<= ~a21~0 1) (<= 1 ~a21~0) (<= ~a8~0 15) (<= 15 ~a8~0)) (not (= ~a12~0 8))) [2020-10-13 06:06:12,262 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:06:12,262 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse1 (= ~a7~0 1)) (.cse22 (= ~a21~0 1)) (.cse31 (= ~a20~0 1)) (.cse39 (<= ~a7~0 0)) (.cse19 (<= ~a17~0 0))) (let ((.cse13 (or .cse19 (< 1 ~a17~0))) (.cse0 (= ~a20~0 0)) (.cse35 (= ~a20~0 ~a17~0)) (.cse30 (= 14 ~a8~0)) (.cse10 (or (< 1 ~a7~0) .cse39)) (.cse42 (not .cse31)) (.cse3 (not .cse22)) (.cse23 (= ~a16~0 6)) (.cse24 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 2 main_~input~0) (<= main_~input~0 2)) (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)))) (.cse6 (= ~a17~0 1)) (.cse7 (<= ~a16~0 6)) (.cse9 (<= 6 ~a16~0)) (.cse4 (= ~a8~0 13)) (.cse5 (= ~a16~0 4)) (.cse18 (<= 13 ~a8~0)) (.cse40 (<= 1 ~a17~0)) (.cse21 (<= ~a8~0 13)) (.cse17 (<= 1 ~a7~0)) (.cse33 (<= ~a16~0 5)) (.cse34 (<= 5 ~a16~0)) (.cse15 (<= ~a8~0 15)) (.cse20 (<= ~a7~0 1)) (.cse16 (<= 15 ~a8~0)) (.cse27 (<= ~a20~0 0)) (.cse2 (or (= 5 main_~input~0) (= 6 main_~input~0) (= main_~input~0 4) (= 3 main_~input~0) (= main_~input~0 1) (= 2 main_~input~0))) (.cse25 (= ~a8~0 15)) (.cse26 (not .cse1)) (.cse32 (= 5 ~a16~0)) (.cse36 (= ~a17~0 0)) (.cse8 (<= 1 ~a20~0)) (.cse37 (<= 14 ~a8~0)) (.cse38 (<= ~a8~0 14)) (.cse28 (<= ~a16~0 4)) (.cse29 (<= 4 ~a16~0)) (.cse11 (<= ~a21~0 1)) (.cse12 (<= ~a20~0 1)) (.cse41 (<= ~a17~0 1)) (.cse14 (<= 1 ~a21~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (not (<= 5 |old(~a16~0)|)) (not (<= |old(~a21~0)| 1)) (and .cse7 .cse8 .cse9 .cse2 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (not (<= 1 |old(~a17~0)|)) (and .cse17 .cse7 .cse18 .cse8 .cse9 .cse2 .cse19 .cse12 .cse20 (or (< 1 ~a21~0) (<= ~a21~0 0)) .cse21) (not (<= |old(~a17~0)| 1)) (and .cse22 .cse23 .cse24 .cse25 .cse26 .cse6 .cse27) (and .cse18 .cse28 (or (< 1 ~a20~0) .cse27) .cse29 .cse10 .cse11 .cse13 .cse14 .cse21) (and .cse30 (<= ~a20~0 ~a7~0) .cse19 .cse31 .cse11 .cse14 .cse32 .cse20) (not (<= 1 |old(~a20~0)|)) (and .cse8 .cse33 .cse24 .cse19 .cse10 .cse11 .cse12 .cse14 .cse34 .cse15 .cse16) (and .cse35 .cse22 .cse1 .cse25 .cse5 .cse36) (and (= ~a21~0 ~a7~0) .cse35 .cse1 .cse30 .cse5 .cse36) (not (<= 1 |old(~a21~0)|)) (and .cse37 .cse38 .cse33 .cse19 .cse39 .cse11 .cse14 .cse34 .cse27) (and .cse17 .cse18 .cse8 .cse40 .cse2 .cse28 .cse29 .cse41 .cse12 .cse20 .cse21) (and .cse35 .cse22 .cse2 .cse25 .cse5 .cse36) (not (= ~a12~0 8)) (and .cse22 .cse2 .cse25 .cse5 .cse26 .cse42 .cse6) (and .cse0 .cse35 .cse22 .cse1 .cse30 .cse32) (and .cse8 .cse28 .cse24 .cse19 .cse29 .cse10 .cse11 .cse12 .cse14 .cse15 .cse16) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a7~0)| 0)) (and (= ~a21~0 ~a17~0) .cse2 .cse25 .cse26 .cse32 .cse42 .cse6) (and .cse1 .cse2 .cse3 .cse4 .cse31 .cse5 .cse36) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) .cse24 (= ~a16~0 |old(~a16~0)|) .cse11 .cse14 .cse15 .cse16) (and .cse22 .cse23 .cse2 .cse25 .cse26 .cse36) (and .cse1 .cse24 .cse4 (= ~a21~0 0) .cse31 .cse32 .cse6) (and .cse7 .cse18 .cse8 .cse40 .cse9 .cse39 .cse11 .cse12 .cse41 .cse14 .cse21) (not (<= |old(~a20~0)| 1)) (and .cse19 .cse39 .cse4 .cse5 .cse11 .cse14) (and .cse18 .cse8 .cse40 .cse28 .cse29 .cse41 .cse11 .cse12 .cse14 .cse20 .cse21) (and .cse37 .cse38 .cse28 .cse19 .cse29 .cse39 .cse11 .cse14 .cse27) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (and .cse17 .cse33 .cse19 .cse11 .cse14 .cse34 .cse15 .cse20 .cse16 .cse27) (and .cse22 .cse2 .cse25 .cse26 .cse32 .cse36) (and .cse8 .cse37 .cse38 .cse28 .cse29 .cse39 .cse11 .cse12 .cse41 .cse14)))) [2020-10-13 06:06:12,262 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-13 06:06:12,262 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-13 06:06:12,263 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse5 (= ~a21~0 1)) (.cse34 (<= ~a7~0 0)) (.cse0 (= ~a7~0 1)) (.cse20 (<= ~a17~0 0)) (.cse2 (= ~a20~0 1))) (let ((.cse37 (= ~a20~0 0)) (.cse19 (= 14 ~a8~0)) (.cse3 (= 5 ~a16~0)) (.cse36 (not .cse2)) (.cse16 (or .cse20 (< 1 ~a17~0))) (.cse22 (= ~a20~0 ~a17~0)) (.cse26 (<= 1 ~a17~0)) (.cse6 (= ~a16~0 6)) (.cse7 (= ~a8~0 15)) (.cse8 (not .cse0)) (.cse4 (= ~a17~0 1)) (.cse39 (<= ~a16~0 6)) (.cse10 (<= 13 ~a8~0)) (.cse40 (<= 6 ~a16~0)) (.cse18 (<= ~a8~0 13)) (.cse14 (or (< 1 ~a7~0) .cse34)) (.cse38 (not .cse5)) (.cse1 (= ~a8~0 13)) (.cse23 (= ~a16~0 4)) (.cse9 (= ~a17~0 0)) (.cse24 (<= 1 ~a7~0)) (.cse33 (<= ~a16~0 5)) (.cse35 (<= 5 ~a16~0)) (.cse29 (<= ~a8~0 15)) (.cse21 (<= ~a7~0 1)) (.cse30 (<= 15 ~a8~0)) (.cse12 (<= ~a20~0 0)) (.cse25 (<= 1 ~a20~0)) (.cse31 (<= 14 ~a8~0)) (.cse32 (<= ~a8~0 14)) (.cse11 (<= ~a16~0 4)) (.cse13 (<= 4 ~a16~0)) (.cse15 (<= ~a21~0 1)) (.cse27 (<= ~a20~0 1)) (.cse28 (<= ~a17~0 1)) (.cse17 (<= 1 ~a21~0))) (or (and .cse0 .cse1 (= ~a21~0 0) .cse2 .cse3 .cse4) (not (<= 5 |old(~a16~0)|)) (and .cse5 .cse6 .cse7 .cse8 .cse9) (not (<= |old(~a21~0)| 1)) (not (<= 1 |old(~a17~0)|)) (not (<= |old(~a17~0)| 1)) (and .cse10 .cse11 (or (< 1 ~a20~0) .cse12) .cse13 .cse14 .cse15 .cse16 .cse17 .cse18) (and .cse19 (<= ~a20~0 ~a7~0) .cse20 .cse2 .cse15 .cse17 .cse3 .cse21) (not (<= 1 |old(~a20~0)|)) (and .cse5 .cse7 .cse8 .cse3 .cse9) (and (= ~a21~0 ~a7~0) .cse22 .cse0 .cse19 .cse23 .cse9) (not (<= 1 |old(~a21~0)|)) (and .cse24 .cse10 .cse25 .cse26 .cse11 .cse13 .cse27 .cse28 .cse21 .cse18) (and .cse25 .cse11 .cse20 .cse13 .cse14 .cse15 .cse27 .cse17 .cse29 .cse30) (and .cse31 .cse32 .cse33 .cse20 .cse34 .cse15 .cse17 .cse35 .cse12) (and (= ~a21~0 ~a17~0) .cse7 .cse8 .cse3 .cse36 .cse4) (not (= ~a12~0 8)) (and .cse10 .cse25 .cse11 .cse13 .cse34 .cse15 .cse27 .cse28 .cse17 .cse18) (and .cse37 .cse0 .cse38 .cse1 .cse23 .cse4) (and .cse37 .cse22 .cse5 .cse0 .cse19 .cse3) (and .cse5 .cse7 .cse23 .cse8 .cse36 .cse4) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a7~0)| 0)) (and .cse39 .cse25 .cse40 .cse14 .cse15 .cse27 .cse16 .cse17 .cse29 .cse30) (and .cse22 .cse5 .cse7 .cse23 .cse9) (and .cse39 .cse10 .cse25 .cse26 .cse40 .cse34 .cse15 .cse27 .cse28 .cse17 .cse18) (and .cse5 .cse6 .cse7 .cse8 .cse4 .cse12) (not (<= |old(~a20~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a16~0 |old(~a16~0)|) .cse15 .cse17 .cse29 .cse30) (and .cse24 .cse39 .cse10 .cse25 .cse40 .cse20 .cse27 .cse21 (or (< 1 ~a21~0) (<= ~a21~0 0)) .cse18) (and .cse31 .cse32 .cse11 .cse20 .cse13 .cse34 .cse15 .cse17 .cse12) (and .cse25 .cse33 .cse20 .cse14 .cse15 .cse27 .cse17 .cse35 .cse29 .cse30) (not (<= |old(~a16~0)| 5)) (and .cse0 .cse38 .cse1 .cse2 .cse23 .cse9) (not (<= 15 |old(~a8~0)|)) (and .cse24 .cse33 .cse20 .cse15 .cse17 .cse35 .cse29 .cse21 .cse30 .cse12) (and .cse25 .cse31 .cse32 .cse11 .cse13 .cse34 .cse15 .cse27 .cse28 .cse17)))) [2020-10-13 06:06:12,263 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:06:12,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:06:12 BoogieIcfgContainer [2020-10-13 06:06:12,306 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:06:12,310 INFO L168 Benchmark]: Toolchain (without parser) took 160753.41 ms. Allocated memory was 138.4 MB in the beginning and 1.4 GB in the end (delta: 1.3 GB). Free memory was 99.6 MB in the beginning and 348.1 MB in the end (delta: -248.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-10-13 06:06:12,311 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 138.4 MB. Free memory was 120.0 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 06:06:12,313 INFO L168 Benchmark]: CACSL2BoogieTranslator took 765.56 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 99.4 MB in the beginning and 167.4 MB in the end (delta: -68.0 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2020-10-13 06:06:12,313 INFO L168 Benchmark]: Boogie Preprocessor took 148.42 ms. Allocated memory is still 203.4 MB. Free memory was 167.4 MB in the beginning and 162.3 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-10-13 06:06:12,314 INFO L168 Benchmark]: RCFGBuilder took 1380.25 ms. Allocated memory was 203.4 MB in the beginning and 234.4 MB in the end (delta: 30.9 MB). Free memory was 162.3 MB in the beginning and 175.4 MB in the end (delta: -13.1 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2020-10-13 06:06:12,314 INFO L168 Benchmark]: TraceAbstraction took 158451.89 ms. Allocated memory was 234.4 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 175.4 MB in the beginning and 348.1 MB in the end (delta: -172.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-10-13 06:06:12,316 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 138.4 MB. Free memory was 120.0 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 765.56 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 99.4 MB in the beginning and 167.4 MB in the end (delta: -68.0 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 148.42 ms. Allocated memory is still 203.4 MB. Free memory was 167.4 MB in the beginning and 162.3 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1380.25 ms. Allocated memory was 203.4 MB in the beginning and 234.4 MB in the end (delta: 30.9 MB). Free memory was 162.3 MB in the beginning and 175.4 MB in the end (delta: -13.1 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 158451.89 ms. Allocated memory was 234.4 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 175.4 MB in the beginning and 348.1 MB in the end (delta: -172.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 491]: 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: 583]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((a7 == 1 && a8 == 13) && a21 == 0) && a20 == 1) && 5 == a16) && a17 == 1) || !(5 <= \old(a16))) || ((((a21 == 1 && a16 == 6) && a8 == 15) && !(a7 == 1)) && a17 == 0)) || !(\old(a21) <= 1)) || !(1 <= \old(a17))) || !(\old(a17) <= 1)) || ((((((((13 <= a8 && a16 <= 4) && (1 < a20 || a20 <= 0)) && 4 <= a16) && (1 < a7 || a7 <= 0)) && a21 <= 1) && (a17 <= 0 || 1 < a17)) && 1 <= a21) && a8 <= 13)) || (((((((14 == a8 && a20 <= a7) && a17 <= 0) && a20 == 1) && a21 <= 1) && 1 <= a21) && 5 == a16) && a7 <= 1)) || !(1 <= \old(a20))) || ((((a21 == 1 && a8 == 15) && !(a7 == 1)) && 5 == a16) && a17 == 0)) || (((((a21 == a7 && a20 == a17) && a7 == 1) && 14 == a8) && a16 == 4) && a17 == 0)) || !(1 <= \old(a21))) || (((((((((1 <= a7 && 13 <= a8) && 1 <= a20) && 1 <= a17) && a16 <= 4) && 4 <= a16) && a20 <= 1) && a17 <= 1) && a7 <= 1) && a8 <= 13)) || (((((((((1 <= a20 && a16 <= 4) && a17 <= 0) && 4 <= a16) && (1 < a7 || a7 <= 0)) && a21 <= 1) && a20 <= 1) && 1 <= a21) && a8 <= 15) && 15 <= a8)) || ((((((((14 <= a8 && a8 <= 14) && a16 <= 5) && a17 <= 0) && a7 <= 0) && a21 <= 1) && 1 <= a21) && 5 <= a16) && a20 <= 0)) || (((((a21 == a17 && a8 == 15) && !(a7 == 1)) && 5 == a16) && !(a20 == 1)) && a17 == 1)) || !(a12 == 8)) || (((((((((13 <= a8 && 1 <= a20) && a16 <= 4) && 4 <= a16) && a7 <= 0) && a21 <= 1) && a20 <= 1) && a17 <= 1) && 1 <= a21) && a8 <= 13)) || (((((a20 == 0 && a7 == 1) && !(a21 == 1)) && a8 == 13) && a16 == 4) && a17 == 1)) || (((((a20 == 0 && a20 == a17) && a21 == 1) && a7 == 1) && 14 == a8) && 5 == a16)) || (((((a21 == 1 && a8 == 15) && a16 == 4) && !(a7 == 1)) && !(a20 == 1)) && a17 == 1)) || !(\old(a8) <= 15)) || !(\old(a7) <= 0)) || (((((((((a16 <= 6 && 1 <= a20) && 6 <= a16) && (1 < a7 || a7 <= 0)) && a21 <= 1) && a20 <= 1) && (a17 <= 0 || 1 < a17)) && 1 <= a21) && a8 <= 15) && 15 <= a8)) || ((((a20 == a17 && a21 == 1) && a8 == 15) && a16 == 4) && a17 == 0)) || ((((((((((a16 <= 6 && 13 <= a8) && 1 <= a20) && 1 <= a17) && 6 <= a16) && a7 <= 0) && a21 <= 1) && a20 <= 1) && a17 <= 1) && 1 <= a21) && a8 <= 13)) || (((((a21 == 1 && a16 == 6) && a8 == 15) && !(a7 == 1)) && a17 == 1) && a20 <= 0)) || !(\old(a20) <= 1)) || ((((((a7 == \old(a7) && a17 == \old(a17)) && a16 == \old(a16)) && a21 <= 1) && 1 <= a21) && a8 <= 15) && 15 <= a8)) || (((((((((1 <= a7 && a16 <= 6) && 13 <= a8) && 1 <= a20) && 6 <= a16) && a17 <= 0) && a20 <= 1) && a7 <= 1) && (1 < a21 || a21 <= 0)) && a8 <= 13)) || ((((((((14 <= a8 && a8 <= 14) && a16 <= 4) && a17 <= 0) && 4 <= a16) && a7 <= 0) && a21 <= 1) && 1 <= a21) && a20 <= 0)) || (((((((((1 <= a20 && a16 <= 5) && a17 <= 0) && (1 < a7 || a7 <= 0)) && a21 <= 1) && a20 <= 1) && 1 <= a21) && 5 <= a16) && a8 <= 15) && 15 <= a8)) || !(\old(a16) <= 5)) || (((((a7 == 1 && !(a21 == 1)) && a8 == 13) && a20 == 1) && a16 == 4) && a17 == 0)) || !(15 <= \old(a8))) || (((((((((1 <= a7 && a16 <= 5) && a17 <= 0) && a21 <= 1) && 1 <= a21) && 5 <= a16) && a8 <= 15) && a7 <= 1) && 15 <= a8) && a20 <= 0)) || (((((((((1 <= a20 && 14 <= a8) && a8 <= 14) && a16 <= 4) && 4 <= a16) && a7 <= 0) && a21 <= 1) && a20 <= 1) && a17 <= 1) && 1 <= a21) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 145.0s, OverallIterations: 31, TraceHistogramMax: 7, AutomataDifference: 61.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 13.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 796 SDtfs, 9319 SDslu, 1169 SDs, 0 SdLazy, 22238 SolverSat, 1276 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 777 GetRequests, 348 SyntacticMatches, 25 SemanticMatches, 404 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1068 ImplicationChecksByTransitivity, 44.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=604occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 31 MinimizatonAttempts, 224 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 206 PreInvPairs, 262 NumberOfFragments, 4202 HoareAnnotationTreeSize, 206 FomulaSimplifications, 1387 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3580 FormulaSimplificationTreeSizeReductionInter, 12.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 74.6s InterpolantComputationTime, 7567 NumberOfCodeBlocks, 7567 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 7536 ConstructedInterpolants, 0 QuantifiedInterpolants, 21569084 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 1 PerfectInterpolantSequences, 8178/8288 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...