/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=BIGGEST --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_label29.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 11:06:48,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 11:06:48,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 11:06:48,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 11:06:48,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 11:06:48,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 11:06:48,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 11:06:48,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 11:06:48,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 11:06:48,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 11:06:48,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 11:06:48,101 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 11:06:48,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 11:06:48,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 11:06:48,104 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 11:06:48,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 11:06:48,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 11:06:48,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 11:06:48,110 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 11:06:48,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 11:06:48,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 11:06:48,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 11:06:48,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 11:06:48,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 11:06:48,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 11:06:48,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 11:06:48,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 11:06:48,127 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 11:06:48,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 11:06:48,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 11:06:48,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 11:06:48,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 11:06:48,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 11:06:48,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 11:06:48,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 11:06:48,134 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 11:06:48,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 11:06:48,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 11:06:48,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 11:06:48,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 11:06:48,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 11:06:48,141 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 [2020-10-12 11:06:48,188 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 11:06:48,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 11:06:48,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 11:06:48,193 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 11:06:48,193 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 11:06:48,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 11:06:48,193 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 11:06:48,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 11:06:48,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 11:06:48,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 11:06:48,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 11:06:48,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 11:06:48,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 11:06:48,195 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 11:06:48,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 11:06:48,197 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 11:06:48,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 11:06:48,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 11:06:48,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 11:06:48,198 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 11:06:48,198 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 11:06:48,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 11:06:48,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 11:06:48,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 11:06:48,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 11:06:48,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 11:06:48,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 11:06:48,200 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 11:06:48,200 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 11:06:48,200 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 11:06:48,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 11:06:48,526 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 11:06:48,533 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 11:06:48,536 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 11:06:48,536 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 11:06:48,537 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label29.c [2020-10-12 11:06:48,615 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c4a21734/b5b9ae5ca3774d12bb328fe9abe6b4fb/FLAGfb7144180 [2020-10-12 11:06:49,197 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 11:06:49,201 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label29.c [2020-10-12 11:06:49,220 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c4a21734/b5b9ae5ca3774d12bb328fe9abe6b4fb/FLAGfb7144180 [2020-10-12 11:06:49,442 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c4a21734/b5b9ae5ca3774d12bb328fe9abe6b4fb [2020-10-12 11:06:49,451 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 11:06:49,453 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 11:06:49,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 11:06:49,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 11:06:49,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 11:06:49,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:06:49" (1/1) ... [2020-10-12 11:06:49,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cd4ce29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:06:49, skipping insertion in model container [2020-10-12 11:06:49,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:06:49" (1/1) ... [2020-10-12 11:06:49,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 11:06:49,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 11:06:50,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:06:50,075 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 11:06:50,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:06:50,183 INFO L208 MainTranslator]: Completed translation [2020-10-12 11:06:50,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:06:50 WrapperNode [2020-10-12 11:06:50,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 11:06:50,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 11:06:50,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 11:06:50,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 11:06:50,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:06:50" (1/1) ... [2020-10-12 11:06:50,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:06:50" (1/1) ... [2020-10-12 11:06:50,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:06:50" (1/1) ... [2020-10-12 11:06:50,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:06:50" (1/1) ... [2020-10-12 11:06:50,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:06:50" (1/1) ... [2020-10-12 11:06:50,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:06:50" (1/1) ... [2020-10-12 11:06:50,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:06:50" (1/1) ... [2020-10-12 11:06:50,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 11:06:50,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 11:06:50,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 11:06:50,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 11:06:50,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:06:50" (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 [2020-10-12 11:06:50,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 11:06:50,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 11:06:50,356 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 11:06:50,357 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 11:06:50,357 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 11:06:50,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 11:06:50,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 11:06:50,357 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 11:06:50,357 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 11:06:50,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 11:06:50,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 11:06:51,521 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 11:06:51,522 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 11:06:51,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:06:51 BoogieIcfgContainer [2020-10-12 11:06:51,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 11:06:51,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 11:06:51,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 11:06:51,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 11:06:51,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:06:49" (1/3) ... [2020-10-12 11:06:51,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6786bf4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:06:51, skipping insertion in model container [2020-10-12 11:06:51,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:06:50" (2/3) ... [2020-10-12 11:06:51,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6786bf4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:06:51, skipping insertion in model container [2020-10-12 11:06:51,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:06:51" (3/3) ... [2020-10-12 11:06:51,549 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label29.c [2020-10-12 11:06:51,562 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 11:06:51,576 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 11:06:51,594 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 11:06:51,628 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 11:06:51,628 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 11:06:51,628 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 11:06:51,629 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 11:06:51,629 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 11:06:51,629 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 11:06:51,629 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 11:06:51,629 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 11:06:51,656 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-12 11:06:51,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-12 11:06:51,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:06:51,679 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] [2020-10-12 11:06:51,680 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:06:51,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:06:51,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1243928705, now seen corresponding path program 1 times [2020-10-12 11:06:51,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:06:51,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [970327643] [2020-10-12 11:06:51,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:06:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:52,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:52,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:53,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:53,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-12 11:06:53,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:06:53,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1627 [2020-10-12 11:06:53,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:53,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 11:06:53,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:06:53,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-12 11:06:53,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 11:06:54,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:06:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:54,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:54,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:54,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:06:54,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:54,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 11:06:54,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:54,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:06:54,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:54,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:06:54,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:54,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:06:54,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [970327643] [2020-10-12 11:06:54,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 11:06:54,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 11:06:54,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654067062] [2020-10-12 11:06:54,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:06:54,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:06:54,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:06:54,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:06:54,576 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 13 states. [2020-10-12 11:06:54,993 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2020-10-12 11:06:55,209 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2020-10-12 11:06:55,462 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2020-10-12 11:06:55,690 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 90 [2020-10-12 11:06:55,969 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 89 [2020-10-12 11:06:56,424 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 88 [2020-10-12 11:06:56,950 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2020-10-12 11:06:57,280 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 85 [2020-10-12 11:06:58,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:06:58,182 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-12 11:06:58,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:06:58,186 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 107 [2020-10-12 11:06:58,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:06:58,201 INFO L225 Difference]: With dead ends: 474 [2020-10-12 11:06:58,201 INFO L226 Difference]: Without dead ends: 205 [2020-10-12 11:06:58,208 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:06:58,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-12 11:06:58,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-12 11:06:58,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-12 11:06:58,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-12 11:06:58,277 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 107 [2020-10-12 11:06:58,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:06:58,278 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-12 11:06:58,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:06:58,278 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-12 11:06:58,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-12 11:06:58,281 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:06:58,282 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] [2020-10-12 11:06:58,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 11:06:58,282 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:06:58,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:06:58,283 INFO L82 PathProgramCache]: Analyzing trace with hash -355630652, now seen corresponding path program 1 times [2020-10-12 11:06:58,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:06:58,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2031636704] [2020-10-12 11:06:58,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:06:58,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:58,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:58,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:58,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:59,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:59,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-12 11:06:59,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:06:59,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1334 [2020-10-12 11:06:59,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:59,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:06:59,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:06:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 11:06:59,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:07:00,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:07:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:00,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:00,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:00,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:07:00,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:00,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:07:00,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:00,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:00,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:00,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:00,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:00,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:07:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:00,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:00,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:00,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:07:00,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:00,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:07:00,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:00,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:07:00,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:00,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 11:07:00,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:07:00,300 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:07:00,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2031636704] [2020-10-12 11:07:00,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:07:00,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:07:00,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125101068] [2020-10-12 11:07:00,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:07:00,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:07:00,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:07:00,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:07:00,305 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-12 11:07:01,060 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-12 11:07:01,760 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-12 11:07:02,117 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-12 11:07:02,506 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-12 11:07:02,712 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-12 11:07:03,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:07:03,316 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-12 11:07:03,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 11:07:03,319 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 115 [2020-10-12 11:07:03,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:07:03,322 INFO L225 Difference]: With dead ends: 433 [2020-10-12 11:07:03,323 INFO L226 Difference]: Without dead ends: 294 [2020-10-12 11:07:03,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-12 11:07:03,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-12 11:07:03,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-12 11:07:03,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-12 11:07:03,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-12 11:07:03,351 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 115 [2020-10-12 11:07:03,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:07:03,352 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-12 11:07:03,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:07:03,352 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-12 11:07:03,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-12 11:07:03,355 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:07:03,356 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] [2020-10-12 11:07:03,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 11:07:03,356 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:07:03,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:07:03,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1357354234, now seen corresponding path program 1 times [2020-10-12 11:07:03,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:07:03,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [62013612] [2020-10-12 11:07:03,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:07:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:03,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:03,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:03,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:04,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:04,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-12 11:07:04,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:07:04,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 704 [2020-10-12 11:07:04,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:07:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:07:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-12 11:07:04,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:07:04,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:07:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:04,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:04,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:04,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:07:04,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:04,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:07:04,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:04,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:07:04,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:04,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:07:04,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:07:04,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:07:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:04,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:04,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:04,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:04,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:07:04,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:07:04,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 11:07:04,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:04,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:07:04,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:07:04,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:07:04,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:07:04,309 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 11:07:04,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [62013612] [2020-10-12 11:07:04,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:07:04,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:07:04,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667640476] [2020-10-12 11:07:04,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 11:07:04,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:07:04,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 11:07:04,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:07:04,313 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 6 states. [2020-10-12 11:07:05,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:07:05,439 INFO L93 Difference]: Finished difference Result 627 states and 851 transitions. [2020-10-12 11:07:05,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 11:07:05,440 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 118 [2020-10-12 11:07:05,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:07:05,446 INFO L225 Difference]: With dead ends: 627 [2020-10-12 11:07:05,446 INFO L226 Difference]: Without dead ends: 417 [2020-10-12 11:07:05,447 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:07:05,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2020-10-12 11:07:05,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 415. [2020-10-12 11:07:05,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-10-12 11:07:05,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 540 transitions. [2020-10-12 11:07:05,478 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 540 transitions. Word has length 118 [2020-10-12 11:07:05,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:07:05,479 INFO L479 AbstractCegarLoop]: Abstraction has 415 states and 540 transitions. [2020-10-12 11:07:05,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 11:07:05,480 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 540 transitions. [2020-10-12 11:07:05,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-12 11:07:05,483 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:07:05,484 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:07:05,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 11:07:05,484 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:07:05,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:07:05,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1795310949, now seen corresponding path program 1 times [2020-10-12 11:07:05,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:07:05,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [956441444] [2020-10-12 11:07:05,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:07:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:05,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:05,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:06,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:08,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:10,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:10,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-12 11:07:10,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:07:10,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4684 [2020-10-12 11:07:10,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:10,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:07:10,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-12 11:07:10,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 11:07:10,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:10,862 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 47 [2020-10-12 11:07:11,083 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 50 [2020-10-12 11:07:11,302 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 46 [2020-10-12 11:07:11,504 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 42 [2020-10-12 11:07:11,692 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 38 [2020-10-12 11:07:11,845 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 34 [2020-10-12 11:07:11,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:07:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:11,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:11,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:11,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:07:11,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:11,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:07:11,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:11,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:11,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:11,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:11,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:11,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:07:11,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:11,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:11,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:11,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:07:11,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:11,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:07:11,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:11,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:11,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:11,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:11,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:11,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:07:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:11,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:11,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:11,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 11:07:11,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:11,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:07:11,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:11,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:07:11,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:11,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 11:07:11,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:12,137 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-12 11:07:12,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [956441444] [2020-10-12 11:07:12,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:07:12,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:07:12,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710802210] [2020-10-12 11:07:12,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:07:12,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:07:12,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:07:12,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:07:12,141 INFO L87 Difference]: Start difference. First operand 415 states and 540 transitions. Second operand 13 states. [2020-10-12 11:07:12,655 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 11:07:13,059 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 112 [2020-10-12 11:07:13,402 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 109 [2020-10-12 11:07:13,717 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 106 [2020-10-12 11:07:14,407 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 103 [2020-10-12 11:07:15,007 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 98 [2020-10-12 11:07:15,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:07:15,613 INFO L93 Difference]: Finished difference Result 843 states and 1161 transitions. [2020-10-12 11:07:15,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:07:15,614 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 127 [2020-10-12 11:07:15,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:07:15,619 INFO L225 Difference]: With dead ends: 843 [2020-10-12 11:07:15,619 INFO L226 Difference]: Without dead ends: 494 [2020-10-12 11:07:15,621 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:07:15,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-10-12 11:07:15,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 488. [2020-10-12 11:07:15,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2020-10-12 11:07:15,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 621 transitions. [2020-10-12 11:07:15,650 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 621 transitions. Word has length 127 [2020-10-12 11:07:15,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:07:15,651 INFO L479 AbstractCegarLoop]: Abstraction has 488 states and 621 transitions. [2020-10-12 11:07:15,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:07:15,651 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 621 transitions. [2020-10-12 11:07:15,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-12 11:07:15,655 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:07:15,655 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:07:15,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 11:07:15,656 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:07:15,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:07:15,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1022737821, now seen corresponding path program 1 times [2020-10-12 11:07:15,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:07:15,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1315550164] [2020-10-12 11:07:15,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:07:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:15,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:15,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:15,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:17,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:17,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:17,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-12 11:07:17,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:07:17,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2202 [2020-10-12 11:07:17,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:17,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:07:17,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:07:17,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 11:07:17,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:17,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:07:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:17,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:17,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:17,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:07:17,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:17,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:07:17,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:18,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:07:18,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:18,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:07:18,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 11:07:18,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:07:18,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:18,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:18,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:18,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:18,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:07:18,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:07:18,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 11:07:18,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:18,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:07:18,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:07:18,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:07:18,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:18,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:07:18,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:18,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:18,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:18,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:07:18,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:18,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 11:07:18,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:18,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:07:18,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:07:18,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 11:07:18,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:07:18,217 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:07:18,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1315550164] [2020-10-12 11:07:18,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:07:18,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 11:07:18,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182481023] [2020-10-12 11:07:18,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:07:18,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:07:18,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:07:18,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:07:18,221 INFO L87 Difference]: Start difference. First operand 488 states and 621 transitions. Second operand 7 states. [2020-10-12 11:07:19,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:07:19,680 INFO L93 Difference]: Finished difference Result 1208 states and 1622 transitions. [2020-10-12 11:07:19,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 11:07:19,681 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 138 [2020-10-12 11:07:19,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:07:19,692 INFO L225 Difference]: With dead ends: 1208 [2020-10-12 11:07:19,693 INFO L226 Difference]: Without dead ends: 786 [2020-10-12 11:07:19,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-12 11:07:19,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2020-10-12 11:07:19,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 768. [2020-10-12 11:07:19,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2020-10-12 11:07:19,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 990 transitions. [2020-10-12 11:07:19,766 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 990 transitions. Word has length 138 [2020-10-12 11:07:19,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:07:19,767 INFO L479 AbstractCegarLoop]: Abstraction has 768 states and 990 transitions. [2020-10-12 11:07:19,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:07:19,767 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 990 transitions. [2020-10-12 11:07:19,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-12 11:07:19,773 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:07:19,774 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:07:19,774 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 11:07:19,774 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:07:19,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:07:19,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1240447179, now seen corresponding path program 1 times [2020-10-12 11:07:19,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:07:19,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [461133844] [2020-10-12 11:07:19,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:07:19,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:19,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:19,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:20,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:22,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:22,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:24,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:24,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 11:07:24,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:07:24,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4697 [2020-10-12 11:07:24,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:24,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:07:24,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-12 11:07:24,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 11:07:24,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:07:25,061 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 42 [2020-10-12 11:07:25,208 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 40 [2020-10-12 11:07:25,349 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 38 [2020-10-12 11:07:25,493 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 36 [2020-10-12 11:07:25,632 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 33 [2020-10-12 11:07:25,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:07:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:25,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:25,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:25,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:07:25,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:25,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:07:25,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:25,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:25,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:25,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:25,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:25,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:07:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:25,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:25,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:25,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:07:25,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:25,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:07:25,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:25,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:25,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:25,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:25,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:25,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:07:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:25,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:25,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:25,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 11:07:25,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:25,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 11:07:25,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:25,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:07:25,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:25,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-12 11:07:25,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:25,926 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:07:25,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [461133844] [2020-10-12 11:07:25,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:07:25,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:07:25,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970472785] [2020-10-12 11:07:25,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:07:25,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:07:25,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:07:25,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:07:25,929 INFO L87 Difference]: Start difference. First operand 768 states and 990 transitions. Second operand 13 states. [2020-10-12 11:07:26,585 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-12 11:07:26,985 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-12 11:07:27,372 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2020-10-12 11:07:27,600 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2020-10-12 11:07:27,964 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2020-10-12 11:07:28,329 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2020-10-12 11:07:28,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:07:28,628 INFO L93 Difference]: Finished difference Result 1534 states and 2024 transitions. [2020-10-12 11:07:28,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:07:28,634 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 151 [2020-10-12 11:07:28,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:07:28,639 INFO L225 Difference]: With dead ends: 1534 [2020-10-12 11:07:28,639 INFO L226 Difference]: Without dead ends: 832 [2020-10-12 11:07:28,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:07:28,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2020-10-12 11:07:28,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2020-10-12 11:07:28,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 832 states. [2020-10-12 11:07:28,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1065 transitions. [2020-10-12 11:07:28,671 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1065 transitions. Word has length 151 [2020-10-12 11:07:28,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:07:28,671 INFO L479 AbstractCegarLoop]: Abstraction has 832 states and 1065 transitions. [2020-10-12 11:07:28,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:07:28,672 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1065 transitions. [2020-10-12 11:07:28,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-12 11:07:28,675 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:07:28,675 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:07:28,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 11:07:28,676 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:07:28,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:07:28,676 INFO L82 PathProgramCache]: Analyzing trace with hash 144854788, now seen corresponding path program 1 times [2020-10-12 11:07:28,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:07:28,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [829931563] [2020-10-12 11:07:28,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:07:28,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:28,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:28,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:28,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:29,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:29,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:32,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:32,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-12 11:07:32,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:07:32,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4074 [2020-10-12 11:07:32,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:32,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:07:32,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:07:32,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 11:07:32,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:32,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:07:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:32,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:32,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:32,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:07:32,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:32,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:07:32,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:32,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:07:32,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:32,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:07:32,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:32,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:07:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:32,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:32,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:32,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:32,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:07:32,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:07:32,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 11:07:32,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:32,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:07:32,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:07:32,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:07:32,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:07:32,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:07:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:32,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:32,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:32,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:07:32,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:32,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 11:07:32,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:32,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:07:32,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:07:32,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 11:07:32,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:32,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 11:07:32,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:32,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:32,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:32,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:07:32,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:32,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 11:07:32,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:33,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:33,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:07:33,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:33,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:07:33,056 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 42 proven. 18 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-12 11:07:33,056 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [829931563] [2020-10-12 11:07:33,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:07:33,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:07:33,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066637696] [2020-10-12 11:07:33,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:07:33,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:07:33,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:07:33,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:07:33,059 INFO L87 Difference]: Start difference. First operand 832 states and 1065 transitions. Second operand 7 states. [2020-10-12 11:07:34,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:07:34,570 INFO L93 Difference]: Finished difference Result 1612 states and 2085 transitions. [2020-10-12 11:07:34,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 11:07:34,571 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 153 [2020-10-12 11:07:34,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:07:34,576 INFO L225 Difference]: With dead ends: 1612 [2020-10-12 11:07:34,576 INFO L226 Difference]: Without dead ends: 846 [2020-10-12 11:07:34,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:07:34,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2020-10-12 11:07:34,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 840. [2020-10-12 11:07:34,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 840 states. [2020-10-12 11:07:34,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1069 transitions. [2020-10-12 11:07:34,618 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1069 transitions. Word has length 153 [2020-10-12 11:07:34,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:07:34,619 INFO L479 AbstractCegarLoop]: Abstraction has 840 states and 1069 transitions. [2020-10-12 11:07:34,619 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:07:34,619 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1069 transitions. [2020-10-12 11:07:34,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-12 11:07:34,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:07:34,623 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:07:34,623 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 11:07:34,623 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:07:34,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:07:34,624 INFO L82 PathProgramCache]: Analyzing trace with hash -45346729, now seen corresponding path program 1 times [2020-10-12 11:07:34,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:07:34,627 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [665520053] [2020-10-12 11:07:34,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:07:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:34,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:34,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:34,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:36,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:37,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:38,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:38,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-12 11:07:38,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:07:38,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3465 [2020-10-12 11:07:38,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:38,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:07:38,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 11:07:38,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 11:07:38,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:38,496 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-10-12 11:07:38,637 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-10-12 11:07:38,836 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 41 [2020-10-12 11:07:39,050 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 40 [2020-10-12 11:07:39,261 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 38 [2020-10-12 11:07:39,458 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 36 [2020-10-12 11:07:39,592 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 33 [2020-10-12 11:07:39,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:07:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:39,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:39,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:39,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:07:39,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:39,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:07:39,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:39,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:39,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:39,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:39,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:39,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:07:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:39,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:39,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:39,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:07:39,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:39,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:07:39,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:39,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:39,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:39,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:39,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:39,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:07:39,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:39,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:39,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:39,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 11:07:39,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:39,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 11:07:39,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:39,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:07:39,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:39,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 11:07:39,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:39,823 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:07:39,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [665520053] [2020-10-12 11:07:39,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:07:39,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:07:39,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771343613] [2020-10-12 11:07:39,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:07:39,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:07:39,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:07:39,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:07:39,825 INFO L87 Difference]: Start difference. First operand 840 states and 1069 transitions. Second operand 13 states. [2020-10-12 11:07:40,533 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-12 11:07:40,966 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-12 11:07:41,420 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2020-10-12 11:07:41,700 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2020-10-12 11:07:42,083 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2020-10-12 11:07:42,621 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2020-10-12 11:07:42,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:07:42,940 INFO L93 Difference]: Finished difference Result 1676 states and 2178 transitions. [2020-10-12 11:07:42,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:07:42,944 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 157 [2020-10-12 11:07:42,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:07:42,950 INFO L225 Difference]: With dead ends: 1676 [2020-10-12 11:07:42,951 INFO L226 Difference]: Without dead ends: 902 [2020-10-12 11:07:42,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:07:42,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2020-10-12 11:07:42,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 898. [2020-10-12 11:07:42,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-10-12 11:07:42,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1137 transitions. [2020-10-12 11:07:42,987 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1137 transitions. Word has length 157 [2020-10-12 11:07:42,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:07:42,987 INFO L479 AbstractCegarLoop]: Abstraction has 898 states and 1137 transitions. [2020-10-12 11:07:42,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:07:42,988 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1137 transitions. [2020-10-12 11:07:42,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-12 11:07:42,991 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:07:42,991 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] [2020-10-12 11:07:42,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 11:07:42,992 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:07:42,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:07:42,992 INFO L82 PathProgramCache]: Analyzing trace with hash -992483363, now seen corresponding path program 1 times [2020-10-12 11:07:42,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:07:42,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2068807740] [2020-10-12 11:07:42,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:07:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:43,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:43,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:43,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:43,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:43,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:45,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:45,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-12 11:07:45,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:07:45,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2117 [2020-10-12 11:07:45,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:45,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 11:07:45,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:07:45,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 11:07:45,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:46,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:07:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:46,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:46,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:46,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:07:46,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:46,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:07:46,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:46,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:46,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:46,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:46,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:46,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:07:46,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:46,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:46,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:46,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:07:46,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:46,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:07:46,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:46,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:07:46,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:46,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 11:07:46,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:46,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:07:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:46,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:46,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:46,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:07:46,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:46,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 11:07:46,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:46,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:07:46,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:07:46,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 11:07:46,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:46,789 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 47 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 11:07:46,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2068807740] [2020-10-12 11:07:46,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:07:46,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 11:07:46,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712268429] [2020-10-12 11:07:46,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 11:07:46,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:07:46,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 11:07:46,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:07:46,791 INFO L87 Difference]: Start difference. First operand 898 states and 1137 transitions. Second operand 20 states. [2020-10-12 11:07:47,414 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-12 11:07:47,695 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-12 11:07:48,018 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-10-12 11:07:48,349 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-10-12 11:07:48,596 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-10-12 11:07:48,879 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-10-12 11:07:49,119 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-12 11:07:49,474 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 93 [2020-10-12 11:07:49,732 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92 [2020-10-12 11:07:50,068 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-12 11:07:50,268 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2020-10-12 11:07:50,501 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-12 11:07:50,762 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-10-12 11:07:50,929 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2020-10-12 11:07:52,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:07:52,000 INFO L93 Difference]: Finished difference Result 1835 states and 2376 transitions. [2020-10-12 11:07:52,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-12 11:07:52,005 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 165 [2020-10-12 11:07:52,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:07:52,010 INFO L225 Difference]: With dead ends: 1835 [2020-10-12 11:07:52,011 INFO L226 Difference]: Without dead ends: 1003 [2020-10-12 11:07:52,014 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=557, Invalid=1335, Unknown=0, NotChecked=0, Total=1892 [2020-10-12 11:07:52,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2020-10-12 11:07:52,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 969. [2020-10-12 11:07:52,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 969 states. [2020-10-12 11:07:52,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1221 transitions. [2020-10-12 11:07:52,045 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1221 transitions. Word has length 165 [2020-10-12 11:07:52,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:07:52,045 INFO L479 AbstractCegarLoop]: Abstraction has 969 states and 1221 transitions. [2020-10-12 11:07:52,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 11:07:52,046 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1221 transitions. [2020-10-12 11:07:52,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-12 11:07:52,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:07:52,050 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-12 11:07:52,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 11:07:52,050 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:07:52,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:07:52,051 INFO L82 PathProgramCache]: Analyzing trace with hash 568666656, now seen corresponding path program 1 times [2020-10-12 11:07:52,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:07:52,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1360648037] [2020-10-12 11:07:52,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:07:52,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:52,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:52,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:52,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:53,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:56,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:56,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:57,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:57,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-12 11:07:57,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 11:07:57,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 11:07:57,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:57,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:07:57,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 11:07:57,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 11:07:57,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:57,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:07:57,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:57,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:57,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:57,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:07:57,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:57,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:07:57,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:57,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:57,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:57,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:57,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:57,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:07:57,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:57,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:57,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:57,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:07:57,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:57,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:07:57,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:57,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:57,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:57,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:57,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:57,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:07:57,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:57,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:57,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:57,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 11:07:57,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:57,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:07:57,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:57,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:57,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:57,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:57,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:57,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 11:07:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:57,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:57,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:57,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 11:07:57,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:57,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 11:07:57,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:57,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:07:57,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:57,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 11:07:57,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:57,966 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 54 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-12 11:07:57,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1360648037] [2020-10-12 11:07:57,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:07:57,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:07:57,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585567238] [2020-10-12 11:07:57,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:07:57,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:07:57,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:07:57,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:07:57,968 INFO L87 Difference]: Start difference. First operand 969 states and 1221 transitions. Second operand 13 states. [2020-10-12 11:07:58,546 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-10-12 11:07:59,036 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 89 [2020-10-12 11:07:59,302 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-10-12 11:07:59,576 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-10-12 11:07:59,769 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2020-10-12 11:08:00,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:08:00,580 INFO L93 Difference]: Finished difference Result 2052 states and 2634 transitions. [2020-10-12 11:08:00,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 11:08:00,583 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 167 [2020-10-12 11:08:00,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:08:00,589 INFO L225 Difference]: With dead ends: 2052 [2020-10-12 11:08:00,589 INFO L226 Difference]: Without dead ends: 1149 [2020-10-12 11:08:00,592 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2020-10-12 11:08:00,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2020-10-12 11:08:00,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 1044. [2020-10-12 11:08:00,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2020-10-12 11:08:00,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1305 transitions. [2020-10-12 11:08:00,624 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1305 transitions. Word has length 167 [2020-10-12 11:08:00,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:08:00,624 INFO L479 AbstractCegarLoop]: Abstraction has 1044 states and 1305 transitions. [2020-10-12 11:08:00,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:08:00,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1305 transitions. [2020-10-12 11:08:00,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-12 11:08:00,628 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:08:00,629 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:08:00,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 11:08:00,629 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:08:00,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:08:00,629 INFO L82 PathProgramCache]: Analyzing trace with hash 2019069807, now seen corresponding path program 1 times [2020-10-12 11:08:00,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:08:00,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1662929236] [2020-10-12 11:08:00,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:08:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:00,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:00,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:00,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:02,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:03,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:04,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:04,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-12 11:08:04,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:08:04,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3560 [2020-10-12 11:08:04,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:04,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:08:04,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 11:08:04,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 11:08:04,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:04,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:08:04,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:04,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:04,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:04,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:08:04,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:04,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:08:04,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:04,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:04,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:04,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:04,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:04,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:08:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:04,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:04,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:04,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:08:04,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:04,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:08:04,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:04,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:04,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:04,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:04,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:04,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:08:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:04,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:04,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:04,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:08:04,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:04,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 11:08:04,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:04,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:08:04,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:04,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 11:08:04,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:05,069 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:08:05,069 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1662929236] [2020-10-12 11:08:05,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:08:05,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:08:05,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703487410] [2020-10-12 11:08:05,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:08:05,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:08:05,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:08:05,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:08:05,071 INFO L87 Difference]: Start difference. First operand 1044 states and 1305 transitions. Second operand 13 states. [2020-10-12 11:08:06,216 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-12 11:08:06,487 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-12 11:08:07,066 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-12 11:08:07,413 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2020-10-12 11:08:07,768 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2020-10-12 11:08:08,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:08:08,226 INFO L93 Difference]: Finished difference Result 2088 states and 2662 transitions. [2020-10-12 11:08:08,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:08:08,228 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 169 [2020-10-12 11:08:08,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:08:08,234 INFO L225 Difference]: With dead ends: 2088 [2020-10-12 11:08:08,234 INFO L226 Difference]: Without dead ends: 1110 [2020-10-12 11:08:08,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-12 11:08:08,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2020-10-12 11:08:08,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 1104. [2020-10-12 11:08:08,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1104 states. [2020-10-12 11:08:08,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1373 transitions. [2020-10-12 11:08:08,271 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1373 transitions. Word has length 169 [2020-10-12 11:08:08,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:08:08,271 INFO L479 AbstractCegarLoop]: Abstraction has 1104 states and 1373 transitions. [2020-10-12 11:08:08,271 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:08:08,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1373 transitions. [2020-10-12 11:08:08,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-12 11:08:08,275 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:08:08,276 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:08:08,276 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 11:08:08,276 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:08:08,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:08:08,276 INFO L82 PathProgramCache]: Analyzing trace with hash 2100542938, now seen corresponding path program 1 times [2020-10-12 11:08:08,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:08:08,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1399719283] [2020-10-12 11:08:08,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:08:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:08,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:08,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:08,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:09,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:09,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:12,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:12,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:13,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:13,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 11:08:13,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 11:08:13,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 11:08:13,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:13,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 11:08:13,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 11:08:13,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 11:08:13,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:13,623 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 38 [2020-10-12 11:08:13,840 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2020-10-12 11:08:14,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:08:14,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:14,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:14,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:14,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:08:14,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:14,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:08:14,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:14,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:14,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:14,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:14,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:14,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:08:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:14,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:14,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:14,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:08:14,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:14,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:08:14,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:14,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:14,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:14,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:14,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:14,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:08:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:14,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:14,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:14,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:08:14,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:14,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 11:08:14,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:14,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:08:14,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:14,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 11:08:14,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:14,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 11:08:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:14,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:14,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:14,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:08:14,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:14,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:08:14,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:14,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:08:14,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:08:14,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 11:08:14,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:14,982 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 80 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-12 11:08:14,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1399719283] [2020-10-12 11:08:14,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:08:14,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 11:08:14,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263714638] [2020-10-12 11:08:14,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 11:08:14,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:08:14,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 11:08:14,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:08:14,985 INFO L87 Difference]: Start difference. First operand 1104 states and 1373 transitions. Second operand 20 states. [2020-10-12 11:08:15,968 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2020-10-12 11:08:16,199 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-12 11:08:16,563 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-10-12 11:08:16,848 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2020-10-12 11:08:17,117 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2020-10-12 11:08:17,577 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-12 11:08:18,045 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 93 [2020-10-12 11:08:18,371 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92 [2020-10-12 11:08:18,679 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 93 [2020-10-12 11:08:18,964 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 90 [2020-10-12 11:08:19,476 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-10-12 11:08:19,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:08:19,764 INFO L93 Difference]: Finished difference Result 2235 states and 2847 transitions. [2020-10-12 11:08:19,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 11:08:19,765 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 182 [2020-10-12 11:08:19,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:08:19,772 INFO L225 Difference]: With dead ends: 2235 [2020-10-12 11:08:19,772 INFO L226 Difference]: Without dead ends: 1197 [2020-10-12 11:08:19,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=484, Invalid=1076, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 11:08:19,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2020-10-12 11:08:19,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 1164. [2020-10-12 11:08:19,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1164 states. [2020-10-12 11:08:19,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1164 states to 1164 states and 1447 transitions. [2020-10-12 11:08:19,811 INFO L78 Accepts]: Start accepts. Automaton has 1164 states and 1447 transitions. Word has length 182 [2020-10-12 11:08:19,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:08:19,812 INFO L479 AbstractCegarLoop]: Abstraction has 1164 states and 1447 transitions. [2020-10-12 11:08:19,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 11:08:19,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1164 states and 1447 transitions. [2020-10-12 11:08:19,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-12 11:08:19,817 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:08:19,817 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] [2020-10-12 11:08:19,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 11:08:19,817 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:08:19,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:08:19,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1032118918, now seen corresponding path program 1 times [2020-10-12 11:08:19,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:08:19,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1580041461] [2020-10-12 11:08:19,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:08:19,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:19,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:19,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:20,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:20,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:20,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:22,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:22,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-10-12 11:08:22,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:08:22,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2306 [2020-10-12 11:08:22,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:22,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:08:22,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:08:22,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 199 [2020-10-12 11:08:22,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:22,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:08:22,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:22,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:22,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:22,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:08:22,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:22,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:08:22,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:22,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:08:22,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:22,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:08:22,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:22,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:08:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:22,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:22,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:22,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:08:22,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:22,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:08:22,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:22,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:08:22,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:08:22,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 11:08:22,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:22,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:08:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:22,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:22,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:22,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:08:22,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:22,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 11:08:22,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:22,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:08:22,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:08:22,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 11:08:22,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:22,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 11:08:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:22,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:22,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:22,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 11:08:22,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:22,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 11:08:22,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:22,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:08:22,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:08:22,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-12 11:08:22,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:22,446 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 64 proven. 26 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-10-12 11:08:22,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1580041461] [2020-10-12 11:08:22,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:08:22,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 11:08:22,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782611596] [2020-10-12 11:08:22,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:08:22,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:08:22,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:08:22,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:08:22,448 INFO L87 Difference]: Start difference. First operand 1164 states and 1447 transitions. Second operand 7 states. [2020-10-12 11:08:23,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:08:23,655 INFO L93 Difference]: Finished difference Result 1980 states and 2474 transitions. [2020-10-12 11:08:23,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 11:08:23,656 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 191 [2020-10-12 11:08:23,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:08:23,666 INFO L225 Difference]: With dead ends: 1980 [2020-10-12 11:08:23,666 INFO L226 Difference]: Without dead ends: 1978 [2020-10-12 11:08:23,667 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2020-10-12 11:08:23,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2020-10-12 11:08:23,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1842. [2020-10-12 11:08:23,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1842 states. [2020-10-12 11:08:23,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1842 states to 1842 states and 2274 transitions. [2020-10-12 11:08:23,722 INFO L78 Accepts]: Start accepts. Automaton has 1842 states and 2274 transitions. Word has length 191 [2020-10-12 11:08:23,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:08:23,722 INFO L479 AbstractCegarLoop]: Abstraction has 1842 states and 2274 transitions. [2020-10-12 11:08:23,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:08:23,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1842 states and 2274 transitions. [2020-10-12 11:08:23,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-12 11:08:23,729 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:08:23,729 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:08:23,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 11:08:23,729 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:08:23,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:08:23,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1399298931, now seen corresponding path program 1 times [2020-10-12 11:08:23,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:08:23,730 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [608590767] [2020-10-12 11:08:23,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:08:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:23,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:23,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:24,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:24,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:27,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:27,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:27,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:28,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:28,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-10-12 11:08:28,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 11:08:28,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-12 11:08:28,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:28,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:08:28,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 111 [2020-10-12 11:08:28,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 11:08:28,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:29,108 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2020-10-12 11:08:29,227 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2020-10-12 11:08:29,393 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 41 [2020-10-12 11:08:29,555 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 40 [2020-10-12 11:08:29,722 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 38 [2020-10-12 11:08:29,883 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 36 [2020-10-12 11:08:30,040 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 33 [2020-10-12 11:08:30,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:08:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:30,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:30,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:30,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:08:30,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:30,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:08:30,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:30,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:30,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:30,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:30,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:30,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:08:30,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:30,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:30,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:30,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:08:30,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:30,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:08:30,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:30,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:30,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:30,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:30,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:30,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:08:30,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:30,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:30,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:30,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:08:30,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:30,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 11:08:30,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:30,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:30,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:30,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:30,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:30,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 11:08:30,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:30,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:30,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:30,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:08:30,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:30,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:08:30,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:30,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:30,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:30,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:30,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:30,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 11:08:30,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:30,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:30,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:30,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 11:08:30,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:30,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 11:08:30,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:30,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:08:30,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:30,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 11:08:30,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:30,368 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 88 proven. 4 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-10-12 11:08:30,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [608590767] [2020-10-12 11:08:30,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:08:30,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:08:30,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879242157] [2020-10-12 11:08:30,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:08:30,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:08:30,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:08:30,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:08:30,375 INFO L87 Difference]: Start difference. First operand 1842 states and 2274 transitions. Second operand 13 states. [2020-10-12 11:08:30,874 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-12 11:08:31,079 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-12 11:08:31,586 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-12 11:08:32,077 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2020-10-12 11:08:32,331 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 90 [2020-10-12 11:08:32,697 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 89 [2020-10-12 11:08:33,132 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2020-10-12 11:08:33,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:08:33,431 INFO L93 Difference]: Finished difference Result 3750 states and 4715 transitions. [2020-10-12 11:08:33,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:08:33,433 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 202 [2020-10-12 11:08:33,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:08:33,441 INFO L225 Difference]: With dead ends: 3750 [2020-10-12 11:08:33,441 INFO L226 Difference]: Without dead ends: 1974 [2020-10-12 11:08:33,446 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-12 11:08:33,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2020-10-12 11:08:33,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1846. [2020-10-12 11:08:33,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1846 states. [2020-10-12 11:08:33,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1846 states to 1846 states and 2281 transitions. [2020-10-12 11:08:33,495 INFO L78 Accepts]: Start accepts. Automaton has 1846 states and 2281 transitions. Word has length 202 [2020-10-12 11:08:33,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:08:33,495 INFO L479 AbstractCegarLoop]: Abstraction has 1846 states and 2281 transitions. [2020-10-12 11:08:33,495 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:08:33,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1846 states and 2281 transitions. [2020-10-12 11:08:33,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-12 11:08:33,502 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:08:33,502 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:08:33,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 11:08:33,502 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:08:33,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:08:33,503 INFO L82 PathProgramCache]: Analyzing trace with hash -250582096, now seen corresponding path program 1 times [2020-10-12 11:08:33,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:08:33,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [704743265] [2020-10-12 11:08:33,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:08:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:33,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:33,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:33,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:33,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:33,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:35,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:36,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:38,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:38,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-10-12 11:08:38,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 11:08:38,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 11:08:38,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:38,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:08:38,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:08:38,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 11:08:38,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:38,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:08:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:38,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:38,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:38,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:08:38,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:38,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:08:38,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:38,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:08:38,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:38,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:08:38,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:38,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:08:38,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:38,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:38,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:38,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:38,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:08:38,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:08:38,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 11:08:38,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:38,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:08:38,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:08:38,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:08:38,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:38,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:08:38,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:38,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:38,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:38,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:08:38,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:38,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 11:08:38,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:38,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:08:38,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:08:38,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 11:08:38,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:38,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 11:08:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:38,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:38,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:38,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:08:38,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:38,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:08:38,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:38,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:38,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 11:08:38,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:38,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:38,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 11:08:38,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:38,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:38,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:38,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:08:38,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:38,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:08:38,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:38,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:38,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 11:08:38,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:38,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:38,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 11:08:38,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:38,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:38,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:38,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:08:38,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:38,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:08:38,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:38,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:38,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:08:38,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:38,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:38,859 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 108 proven. 57 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-10-12 11:08:38,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [704743265] [2020-10-12 11:08:38,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:08:38,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 11:08:38,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786446245] [2020-10-12 11:08:38,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 11:08:38,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:08:38,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 11:08:38,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-12 11:08:38,861 INFO L87 Difference]: Start difference. First operand 1846 states and 2281 transitions. Second operand 9 states. [2020-10-12 11:08:41,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:08:41,126 INFO L93 Difference]: Finished difference Result 4089 states and 5098 transitions. [2020-10-12 11:08:41,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:08:41,127 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 217 [2020-10-12 11:08:41,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:08:41,136 INFO L225 Difference]: With dead ends: 4089 [2020-10-12 11:08:41,136 INFO L226 Difference]: Without dead ends: 2309 [2020-10-12 11:08:41,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2020-10-12 11:08:41,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2309 states. [2020-10-12 11:08:41,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2309 to 2285. [2020-10-12 11:08:41,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2285 states. [2020-10-12 11:08:41,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2285 states to 2285 states and 2763 transitions. [2020-10-12 11:08:41,193 INFO L78 Accepts]: Start accepts. Automaton has 2285 states and 2763 transitions. Word has length 217 [2020-10-12 11:08:41,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:08:41,193 INFO L479 AbstractCegarLoop]: Abstraction has 2285 states and 2763 transitions. [2020-10-12 11:08:41,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 11:08:41,193 INFO L276 IsEmpty]: Start isEmpty. Operand 2285 states and 2763 transitions. [2020-10-12 11:08:41,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-12 11:08:41,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:08:41,202 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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, 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] [2020-10-12 11:08:41,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 11:08:41,202 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:08:41,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:08:41,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1845382349, now seen corresponding path program 1 times [2020-10-12 11:08:41,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:08:41,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [956903920] [2020-10-12 11:08:41,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:08:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:41,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:41,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:41,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:41,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:42,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:42,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:42,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:44,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:44,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-12 11:08:44,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 11:08:44,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3226 [2020-10-12 11:08:44,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:44,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:08:44,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-12 11:08:44,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-12 11:08:44,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:44,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:08:44,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:44,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:44,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:44,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:08:44,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:44,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:08:44,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:44,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:44,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:44,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:44,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:44,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:08:44,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:44,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:44,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:44,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:08:44,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:44,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:08:44,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:44,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:44,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:44,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:08:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:44,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:44,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:44,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:08:44,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:44,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:08:44,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:44,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:08:44,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:44,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 11:08:44,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:44,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 11:08:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:44,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:44,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:44,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:44,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:08:44,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:08:44,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-12 11:08:44,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:44,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:08:44,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:08:44,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 11:08:44,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:44,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 11:08:44,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:44,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:44,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:44,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:44,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 11:08:44,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:08:44,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 11:08:44,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:44,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:08:44,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:08:44,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 11:08:44,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:44,851 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 42 proven. 102 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-12 11:08:44,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [956903920] [2020-10-12 11:08:44,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:08:44,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 11:08:44,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897491117] [2020-10-12 11:08:44,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 11:08:44,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:08:44,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 11:08:44,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:08:44,854 INFO L87 Difference]: Start difference. First operand 2285 states and 2763 transitions. Second operand 6 states. [2020-10-12 11:08:46,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:08:46,064 INFO L93 Difference]: Finished difference Result 2603 states and 3246 transitions. [2020-10-12 11:08:46,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 11:08:46,066 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 234 [2020-10-12 11:08:46,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:08:46,077 INFO L225 Difference]: With dead ends: 2603 [2020-10-12 11:08:46,077 INFO L226 Difference]: Without dead ends: 2601 [2020-10-12 11:08:46,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 5 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:08:46,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2601 states. [2020-10-12 11:08:46,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2601 to 2420. [2020-10-12 11:08:46,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2420 states. [2020-10-12 11:08:46,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 2971 transitions. [2020-10-12 11:08:46,151 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 2971 transitions. Word has length 234 [2020-10-12 11:08:46,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:08:46,152 INFO L479 AbstractCegarLoop]: Abstraction has 2420 states and 2971 transitions. [2020-10-12 11:08:46,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 11:08:46,152 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 2971 transitions. [2020-10-12 11:08:46,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-10-12 11:08:46,161 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:08:46,161 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, 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] [2020-10-12 11:08:46,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 11:08:46,162 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:08:46,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:08:46,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1975607988, now seen corresponding path program 1 times [2020-10-12 11:08:46,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:08:46,163 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2002262293] [2020-10-12 11:08:46,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:08:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:46,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:46,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:46,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:47,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:48,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:48,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-10-12 11:08:48,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:08:48,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1926 [2020-10-12 11:08:48,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:48,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 11:08:48,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-12 11:08:48,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 11:08:48,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:48,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:08:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:48,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:48,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:48,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:08:48,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:48,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:08:48,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:48,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:48,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:48,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:48,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:48,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:08:48,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:48,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:48,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:48,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:08:48,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:48,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:08:48,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:48,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:48,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:48,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:48,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:48,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:08:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:48,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:48,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:48,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:08:48,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:48,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 11:08:48,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:48,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:48,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:48,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:48,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:48,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-12 11:08:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:48,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:48,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:48,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:08:48,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:48,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:08:48,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:48,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:48,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:48,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:48,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:08:48,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 11:08:48,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:48,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:48,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:48,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:08:48,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:48,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 11:08:48,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:48,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:08:48,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:48,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 11:08:48,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:48,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-12 11:08:48,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:48,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:48,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:48,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:48,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:08:48,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:08:48,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 11:08:48,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:48,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:08:48,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:08:48,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 11:08:48,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:48,401 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 174 proven. 20 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2020-10-12 11:08:48,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2002262293] [2020-10-12 11:08:48,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:08:48,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:08:48,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208209434] [2020-10-12 11:08:48,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:08:48,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:08:48,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:08:48,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:08:48,403 INFO L87 Difference]: Start difference. First operand 2420 states and 2971 transitions. Second operand 7 states. [2020-10-12 11:08:49,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:08:49,737 INFO L93 Difference]: Finished difference Result 5882 states and 7395 transitions. [2020-10-12 11:08:49,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 11:08:49,738 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 247 [2020-10-12 11:08:49,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:08:49,752 INFO L225 Difference]: With dead ends: 5882 [2020-10-12 11:08:49,752 INFO L226 Difference]: Without dead ends: 3528 [2020-10-12 11:08:49,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-12 11:08:49,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3528 states. [2020-10-12 11:08:49,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3528 to 3246. [2020-10-12 11:08:49,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3246 states. [2020-10-12 11:08:49,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3246 states to 3246 states and 4083 transitions. [2020-10-12 11:08:49,840 INFO L78 Accepts]: Start accepts. Automaton has 3246 states and 4083 transitions. Word has length 247 [2020-10-12 11:08:49,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:08:49,841 INFO L479 AbstractCegarLoop]: Abstraction has 3246 states and 4083 transitions. [2020-10-12 11:08:49,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:08:49,841 INFO L276 IsEmpty]: Start isEmpty. Operand 3246 states and 4083 transitions. [2020-10-12 11:08:49,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-10-12 11:08:49,855 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:08:49,855 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 11:08:49,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 11:08:49,856 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:08:49,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:08:49,857 INFO L82 PathProgramCache]: Analyzing trace with hash -756991366, now seen corresponding path program 1 times [2020-10-12 11:08:49,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:08:49,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [818020892] [2020-10-12 11:08:49,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:08:49,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:49,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:50,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:50,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:51,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:52,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:52,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-10-12 11:08:52,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:08:52,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2797 [2020-10-12 11:08:52,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:52,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:08:52,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-12 11:08:52,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 11:08:52,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:52,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:08:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:52,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:52,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:52,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:08:52,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:52,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:08:52,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:52,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:52,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:52,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:52,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:52,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:08:52,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:52,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:52,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:52,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:08:52,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:52,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:08:52,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:52,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:52,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:52,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:52,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:52,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:08:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:52,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:52,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:52,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:08:52,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:52,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 11:08:52,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:52,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:52,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:52,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:52,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:52,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 11:08:52,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:52,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:52,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:52,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 11:08:52,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:52,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 11:08:52,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:52,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:08:52,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:52,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-12 11:08:52,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:52,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 11:08:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:52,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:52,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:52,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:08:52,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:52,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 11:08:52,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:52,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:08:52,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:08:52,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 11:08:52,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:52,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 11:08:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:52,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:52,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:52,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 11:08:52,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:52,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:08:52,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:52,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:52,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 11:08:52,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:52,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:52,987 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 192 proven. 14 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-12 11:08:52,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [818020892] [2020-10-12 11:08:52,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:08:52,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:08:52,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011831404] [2020-10-12 11:08:52,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:08:52,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:08:52,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:08:52,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:08:52,989 INFO L87 Difference]: Start difference. First operand 3246 states and 4083 transitions. Second operand 7 states. [2020-10-12 11:08:54,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:08:54,455 INFO L93 Difference]: Finished difference Result 6587 states and 8260 transitions. [2020-10-12 11:08:54,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 11:08:54,459 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 263 [2020-10-12 11:08:54,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:08:54,471 INFO L225 Difference]: With dead ends: 6587 [2020-10-12 11:08:54,471 INFO L226 Difference]: Without dead ends: 3041 [2020-10-12 11:08:54,478 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-12 11:08:54,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3041 states. [2020-10-12 11:08:54,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3041 to 2849. [2020-10-12 11:08:54,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2849 states. [2020-10-12 11:08:54,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2849 states to 2849 states and 3239 transitions. [2020-10-12 11:08:54,544 INFO L78 Accepts]: Start accepts. Automaton has 2849 states and 3239 transitions. Word has length 263 [2020-10-12 11:08:54,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:08:54,544 INFO L479 AbstractCegarLoop]: Abstraction has 2849 states and 3239 transitions. [2020-10-12 11:08:54,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:08:54,545 INFO L276 IsEmpty]: Start isEmpty. Operand 2849 states and 3239 transitions. [2020-10-12 11:08:54,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-10-12 11:08:54,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:08:54,554 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, 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] [2020-10-12 11:08:54,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 11:08:54,554 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:08:54,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:08:54,554 INFO L82 PathProgramCache]: Analyzing trace with hash -815636106, now seen corresponding path program 1 times [2020-10-12 11:08:54,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:08:54,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679183692] [2020-10-12 11:08:54,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:08:54,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:54,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:54,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:55,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:55,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:55,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 292 [2020-10-12 11:08:55,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:08:55,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1214 [2020-10-12 11:08:55,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:55,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:08:55,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-10-12 11:08:55,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 11:08:55,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:55,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:08:55,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:55,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:55,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:55,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:08:55,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:55,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:08:55,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:55,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:55,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:55,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:55,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:08:56,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:08:56,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:56,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:56,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:56,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 11:08:56,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:56,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 11:08:56,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:56,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:56,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:56,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:56,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:56,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 11:08:56,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:56,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:56,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:56,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:08:56,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:56,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 11:08:56,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:56,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:56,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:56,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:56,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-12 11:08:56,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 11:08:56,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:56,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:56,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:56,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:08:56,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:56,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:08:56,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:56,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:56,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:56,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:56,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:56,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 11:08:56,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:56,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:56,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:56,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:08:56,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:56,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:08:56,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:56,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:56,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:56,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:56,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:56,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-12 11:08:56,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:56,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:56,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:56,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 11:08:56,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:56,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 11:08:56,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:56,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:08:56,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:56,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-12 11:08:56,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:56,251 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 159 proven. 5 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2020-10-12 11:08:56,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679183692] [2020-10-12 11:08:56,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:08:56,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:08:56,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102877100] [2020-10-12 11:08:56,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:08:56,253 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:08:56,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:08:56,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:08:56,254 INFO L87 Difference]: Start difference. First operand 2849 states and 3239 transitions. Second operand 5 states. [2020-10-12 11:08:57,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:08:57,189 INFO L93 Difference]: Finished difference Result 5718 states and 6511 transitions. [2020-10-12 11:08:57,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:08:57,192 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 274 [2020-10-12 11:08:57,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:08:57,200 INFO L225 Difference]: With dead ends: 5718 [2020-10-12 11:08:57,201 INFO L226 Difference]: Without dead ends: 2859 [2020-10-12 11:08:57,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:08:57,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2859 states. [2020-10-12 11:08:57,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2859 to 2849. [2020-10-12 11:08:57,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2849 states. [2020-10-12 11:08:57,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2849 states to 2849 states and 3234 transitions. [2020-10-12 11:08:57,268 INFO L78 Accepts]: Start accepts. Automaton has 2849 states and 3234 transitions. Word has length 274 [2020-10-12 11:08:57,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:08:57,269 INFO L479 AbstractCegarLoop]: Abstraction has 2849 states and 3234 transitions. [2020-10-12 11:08:57,269 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:08:57,269 INFO L276 IsEmpty]: Start isEmpty. Operand 2849 states and 3234 transitions. [2020-10-12 11:08:57,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-10-12 11:08:57,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:08:57,277 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] [2020-10-12 11:08:57,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 11:08:57,278 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:08:57,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:08:57,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1718656678, now seen corresponding path program 1 times [2020-10-12 11:08:57,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:08:57,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [981500025] [2020-10-12 11:08:57,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:08:57,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:57,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:57,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:57,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:59,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:59,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 316 [2020-10-12 11:08:59,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:08:59,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1978 [2020-10-12 11:08:59,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:59,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:08:59,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 209 [2020-10-12 11:08:59,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 11:08:59,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:59,866 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-10-12 11:09:00,162 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 51 [2020-10-12 11:09:00,512 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 54 [2020-10-12 11:09:00,757 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 51 [2020-10-12 11:09:00,983 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 47 [2020-10-12 11:09:01,196 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 44 [2020-10-12 11:09:01,394 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 39 [2020-10-12 11:09:01,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:09:01,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:01,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:01,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:01,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:09:01,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:01,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:09:01,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:01,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:01,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:01,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:01,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:01,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:09:01,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:01,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:01,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:01,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 11:09:01,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:01,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:09:01,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:01,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:01,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:01,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:01,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:01,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 11:09:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:01,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:01,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:01,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:09:01,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:01,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:09:01,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:01,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:01,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:01,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:01,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:01,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 11:09:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:01,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:01,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:01,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:09:01,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:01,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:09:01,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:01,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:01,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:01,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:01,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:01,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 11:09:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:01,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:01,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:01,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:09:01,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:01,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:09:01,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:01,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:01,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:01,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:01,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:01,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-12 11:09:01,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:01,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:01,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:01,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 11:09:01,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:01,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 11:09:01,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:01,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:09:01,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:01,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-12 11:09:01,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:01,777 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 183 proven. 5 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2020-10-12 11:09:01,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [981500025] [2020-10-12 11:09:01,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:09:01,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:09:01,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680475004] [2020-10-12 11:09:01,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:09:01,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:09:01,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:09:01,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:09:01,779 INFO L87 Difference]: Start difference. First operand 2849 states and 3234 transitions. Second operand 13 states. [2020-10-12 11:09:02,885 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-12 11:09:03,105 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 11:09:03,650 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 116 [2020-10-12 11:09:04,015 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 113 [2020-10-12 11:09:04,264 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2020-10-12 11:09:04,589 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 110 [2020-10-12 11:09:04,995 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 107 [2020-10-12 11:09:05,404 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 102 [2020-10-12 11:09:05,594 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 52 [2020-10-12 11:09:05,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:09:05,621 INFO L93 Difference]: Finished difference Result 5563 states and 6321 transitions. [2020-10-12 11:09:05,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 11:09:05,621 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 298 [2020-10-12 11:09:05,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:09:05,629 INFO L225 Difference]: With dead ends: 5563 [2020-10-12 11:09:05,629 INFO L226 Difference]: Without dead ends: 2780 [2020-10-12 11:09:05,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=181, Invalid=419, Unknown=0, NotChecked=0, Total=600 [2020-10-12 11:09:05,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2020-10-12 11:09:05,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 2758. [2020-10-12 11:09:05,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2758 states. [2020-10-12 11:09:05,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2758 states to 2758 states and 3096 transitions. [2020-10-12 11:09:05,691 INFO L78 Accepts]: Start accepts. Automaton has 2758 states and 3096 transitions. Word has length 298 [2020-10-12 11:09:05,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:09:05,692 INFO L479 AbstractCegarLoop]: Abstraction has 2758 states and 3096 transitions. [2020-10-12 11:09:05,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:09:05,692 INFO L276 IsEmpty]: Start isEmpty. Operand 2758 states and 3096 transitions. [2020-10-12 11:09:05,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2020-10-12 11:09:05,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:09:05,701 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, 4, 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] [2020-10-12 11:09:05,701 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 11:09:05,701 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:09:05,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:09:05,702 INFO L82 PathProgramCache]: Analyzing trace with hash -154626837, now seen corresponding path program 1 times [2020-10-12 11:09:05,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:09:05,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2125019226] [2020-10-12 11:09:05,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:09:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:05,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:06,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:06,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:06,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:06,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 343 [2020-10-12 11:09:06,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:09:06,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1028 [2020-10-12 11:09:06,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:06,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:09:06,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 236 [2020-10-12 11:09:06,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 11:09:06,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:06,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:09:06,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:06,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:06,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:06,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:09:06,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:06,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:09:06,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:06,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:06,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:06,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:06,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:06,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:09:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:06,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:06,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:06,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 11:09:06,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:06,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:09:06,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:06,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:06,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:06,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:06,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:06,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 11:09:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:06,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:06,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:06,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:09:06,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:06,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:09:06,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:06,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:06,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:06,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:06,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:06,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 11:09:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:06,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:06,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:06,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:09:06,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:06,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:09:06,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:06,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:06,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:06,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:06,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:06,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 11:09:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:06,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:06,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:06,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:09:06,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:06,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:09:06,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:06,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:06,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:06,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:06,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:06,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-12 11:09:06,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:06,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:06,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:06,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-12 11:09:06,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:06,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:09:06,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:06,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:06,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:06,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:06,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:06,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-12 11:09:06,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:07,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:07,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:07,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-12 11:09:07,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:07,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 11:09:07,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:09:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:07,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 11:09:07,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:07,087 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 207 proven. 6 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2020-10-12 11:09:07,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2125019226] [2020-10-12 11:09:07,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:09:07,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:09:07,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036418307] [2020-10-12 11:09:07,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:09:07,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:09:07,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:09:07,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:09:07,089 INFO L87 Difference]: Start difference. First operand 2758 states and 3096 transitions. Second operand 5 states. [2020-10-12 11:09:08,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:09:08,144 INFO L93 Difference]: Finished difference Result 5452 states and 6134 transitions. [2020-10-12 11:09:08,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:09:08,145 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 323 [2020-10-12 11:09:08,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:09:08,145 INFO L225 Difference]: With dead ends: 5452 [2020-10-12 11:09:08,146 INFO L226 Difference]: Without dead ends: 0 [2020-10-12 11:09:08,155 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 [2020-10-12 11:09:08,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-12 11:09:08,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-12 11:09:08,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-12 11:09:08,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-12 11:09:08,156 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 323 [2020-10-12 11:09:08,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:09:08,156 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-12 11:09:08,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:09:08,157 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-12 11:09:08,157 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-12 11:09:08,157 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 11:09:08,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-12 11:09:09,099 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 176 [2020-10-12 11:09:09,357 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 150 [2020-10-12 11:09:09,565 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 50 [2020-10-12 11:09:11,411 WARN L193 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 345 DAG size of output: 187 [2020-10-12 11:09:12,271 WARN L193 SmtUtils]: Spent 815.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 115 [2020-10-12 11:09:13,038 WARN L193 SmtUtils]: Spent 764.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 84 [2020-10-12 11:09:13,042 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-12 11:09:13,042 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)|)) [2020-10-12 11:09:13,042 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-12 11:09:13,042 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-12 11:09:13,042 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-12 11:09:13,042 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,042 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,042 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,043 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,043 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,043 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,043 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-12 11:09:13,043 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-12 11:09:13,043 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-12 11:09:13,043 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-12 11:09:13,043 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-12 11:09:13,043 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-12 11:09:13,043 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-12 11:09:13,043 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-12 11:09:13,043 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-12 11:09:13,043 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-12 11:09:13,044 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,044 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,044 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,044 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,044 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,044 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,044 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-12 11:09:13,045 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-12 11:09:13,045 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-12 11:09:13,045 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-12 11:09:13,045 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-12 11:09:13,045 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-12 11:09:13,045 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-12 11:09:13,045 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-12 11:09:13,045 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-12 11:09:13,045 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-12 11:09:13,045 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-12 11:09:13,045 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 479) no Hoare annotation was computed. [2020-10-12 11:09:13,045 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-12 11:09:13,046 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-12 11:09:13,046 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-12 11:09:13,046 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-12 11:09:13,046 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,046 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,046 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,046 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,046 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,046 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-12 11:09:13,046 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-12 11:09:13,046 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-12 11:09:13,046 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-12 11:09:13,046 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-12 11:09:13,047 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-12 11:09:13,047 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-12 11:09:13,047 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-12 11:09:13,047 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-12 11:09:13,047 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,047 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,047 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,047 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,047 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,047 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-12 11:09:13,048 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-12 11:09:13,048 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-12 11:09:13,048 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-12 11:09:13,048 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-12 11:09:13,048 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-12 11:09:13,048 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-12 11:09:13,048 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-12 11:09:13,048 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-12 11:09:13,048 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-12 11:09:13,048 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-12 11:09:13,049 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-12 11:09:13,049 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-12 11:09:13,049 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,049 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,049 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,049 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,049 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,049 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-12 11:09:13,049 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-12 11:09:13,050 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-12 11:09:13,050 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-12 11:09:13,050 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-12 11:09:13,050 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-12 11:09:13,050 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-12 11:09:13,050 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-12 11:09:13,050 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-12 11:09:13,050 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,050 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,050 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,050 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,050 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,050 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,051 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-12 11:09:13,051 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,051 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-12 11:09:13,051 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-12 11:09:13,051 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-12 11:09:13,051 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-12 11:09:13,051 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-12 11:09:13,051 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-12 11:09:13,051 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-12 11:09:13,051 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-12 11:09:13,051 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-12 11:09:13,051 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-12 11:09:13,051 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-12 11:09:13,051 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-12 11:09:13,051 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-12 11:09:13,052 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,052 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,052 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,052 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,052 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,052 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-12 11:09:13,052 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-12 11:09:13,052 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-12 11:09:13,052 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-12 11:09:13,052 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-12 11:09:13,052 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-12 11:09:13,053 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-12 11:09:13,053 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-12 11:09:13,053 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,053 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,053 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,053 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,053 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,053 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-12 11:09:13,053 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-12 11:09:13,053 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-12 11:09:13,053 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-12 11:09:13,053 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-12 11:09:13,054 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-12 11:09:13,054 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-12 11:09:13,054 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-12 11:09:13,054 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-12 11:09:13,054 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-12 11:09:13,054 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse22 (not (= |calculate_output_#in~input| 3))) (.cse23 (not (= |calculate_output_#in~input| 2))) (.cse24 (not (= |calculate_output_#in~input| 4))) (.cse25 (not (= |calculate_output_#in~input| 1))) (.cse26 (not (= |calculate_output_#in~input| 6))) (.cse6 (not (<= |old(~a7~0)| 0)))) (let ((.cse8 (= ~a16~0 4)) (.cse14 (not (= 4 |old(~a16~0)|))) (.cse7 (<= ~a21~0 1)) (.cse9 (<= 1 ~a21~0)) (.cse10 (not (<= |old(~a17~0)| 1))) (.cse5 (not (< 0 |old(~a17~0)|))) (.cse16 (= ~a17~0 |old(~a17~0)|)) (.cse1 (= ~a21~0 |old(~a21~0)|)) (.cse4 (= ~a8~0 |old(~a8~0)|)) (.cse15 (not (<= |old(~a17~0)| 0))) (.cse17 (not (= |old(~a17~0)| |old(~a21~0)|))) (.cse0 (= ~a7~0 |old(~a7~0)|)) (.cse19 (= ~a21~0 ~a17~0)) (.cse2 (= ~a20~0 |old(~a20~0)|)) (.cse3 (= ~a16~0 |old(~a16~0)|)) (.cse20 (= ~a8~0 15)) (.cse18 (and (not (< 1 |old(~a7~0)|)) .cse6)) (.cse12 (not (= |old(~a21~0)| 1))) (.cse11 (and .cse22 .cse23 .cse24 .cse25 (not (= |calculate_output_#in~input| 5)) .cse26)) (.cse21 (not (= 15 |old(~a8~0)|))) (.cse13 (not (= ~a12~0 8)))) (and (or (not (<= |old(~a20~0)| |old(~a17~0)|)) (and .cse0 .cse1 .cse2 (<= ~a20~0 ~a17~0) (<= ~a17~0 ~a20~0) .cse3 .cse4) (not (<= |old(~a17~0)| |old(~a20~0)|)) (not (<= 1 |old(~a20~0)|)) (not (<= |old(~a20~0)| 1))) (or .cse5 (and .cse6 (not (<= 2 |old(~a7~0)|))) (not (<= |old(~a8~0)| 15)) (not (<= 15 |old(~a8~0)|)) (and .cse0 (< 0 ~a17~0) .cse2 (<= ~a17~0 1) .cse7 .cse8 .cse9 (<= ~a8~0 15) (<= 15 ~a8~0)) .cse10 .cse11 .cse12 .cse13 .cse14) (or .cse15 (and .cse16 .cse0 .cse2 .cse4 .cse8 .cse7 .cse9) .cse12 .cse14) (or (not (<= 5 |old(~a16~0)|)) (not (<= |old(~a21~0)| 1)) (not (<= 1 |old(~a21~0)|)) (and .cse16 .cse0 .cse2 .cse3 .cse4 .cse7 .cse9) .cse15) (or .cse17 (not (= |old(~a17~0)| 1)) .cse18 (not (= 5 |old(~a16~0)|)) (and .cse0 .cse16 .cse19 .cse2 .cse20 (= 5 ~a16~0)) .cse21 (and .cse22 .cse23 (not (= |calculate_output_#in~input| |old(~a16~0)|)) .cse24 .cse25 .cse26) .cse13) (or (and .cse0 .cse16 (< 12 ~a8~0) .cse1 .cse2 (<= ~a16~0 4) (<= 4 ~a16~0) (<= ~a8~0 13)) (and (not (<= |old(~a21~0)| 0)) (not (<= 2 |old(~a21~0)|))) (not (<= |old(~a7~0)| 1)) (not (<= |old(~a16~0)| 4)) .cse10 (not (< 0 |old(~a7~0)|)) (not (<= 4 |old(~a16~0)|)) .cse5 (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)))) (not (<= |old(~a8~0)| 13)) (not (< 12 |old(~a8~0)|)) .cse13 (not (<= |old(~a20~0)| 0))) (or (not (= |old(~a20~0)| 1)) (and .cse16 .cse0 .cse1 .cse2 .cse3 .cse4) .cse15) (or .cse17 (and .cse0 .cse19 (= ~a21~0 1) .cse2 .cse3 .cse20) .cse18 (not (= 6 |old(~a16~0)|)) (not (= 0 |old(~a20~0)|)) .cse12 .cse11 .cse21 .cse13)))) [2020-10-12 11:09:13,055 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-12 11:09:13,055 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,055 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,055 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,055 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,055 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-12 11:09:13,055 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,055 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,055 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-12 11:09:13,055 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-12 11:09:13,055 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-12 11:09:13,056 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-12 11:09:13,056 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-12 11:09:13,056 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-12 11:09:13,056 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-12 11:09:13,056 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-12 11:09:13,056 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-12 11:09:13,056 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-12 11:09:13,056 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-12 11:09:13,056 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-12 11:09:13,057 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,057 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,057 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,057 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,057 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,057 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-12 11:09:13,057 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,057 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-12 11:09:13,057 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-12 11:09:13,057 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-12 11:09:13,057 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-12 11:09:13,058 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-12 11:09:13,058 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-12 11:09:13,058 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-12 11:09:13,058 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-12 11:09:13,058 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-12 11:09:13,058 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-12 11:09:13,058 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-12 11:09:13,058 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-12 11:09:13,058 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-12 11:09:13,058 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-12 11:09:13,059 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,059 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,059 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,059 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,059 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,059 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:13,059 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-12 11:09:13,059 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-12 11:09:13,059 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-12 11:09:13,059 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-12 11:09:13,060 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-12 11:09:13,060 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-12 11:09:13,060 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-12 11:09:13,060 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-12 11:09:13,060 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-12 11:09:13,060 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-12 11:09:13,060 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-12 11:09:13,060 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 1 ~a20~0) (<= ~a16~0 5) (<= ~a20~0 ~a17~0) (= ~a12~0 8) (<= ~a17~0 1) (<= ~a21~0 1) (<= 5 ~a16~0) (<= 1 ~a21~0) (<= ~a8~0 15) (= ~a7~0 0) (<= 15 ~a8~0)) [2020-10-12 11:09:13,061 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-12 11:09:13,061 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-12 11:09:13,061 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= 5 |old(~a16~0)|)) (not (<= |old(~a20~0)| |old(~a17~0)|)) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (and (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (<= ~a20~0 ~a17~0) (<= ~a17~0 ~a20~0) (= ~a16~0 |old(~a16~0)|) (<= ~a8~0 15) (<= 15 ~a8~0) (= ~a7~0 0)) (not (= |old(~a21~0)| 1)) (not (<= |old(~a17~0)| |old(~a20~0)|)) (not (<= 1 |old(~a20~0)|)) (not (= ~a12~0 8)) (not (<= |old(~a20~0)| 1)) (not (= |old(~a7~0)| 0))) [2020-10-12 11:09:13,061 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-12 11:09:13,061 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse4 (= 6 main_~input~0)) (.cse5 (= main_~input~0 4)) (.cse6 (= 3 main_~input~0)) (.cse7 (= main_~input~0 1)) (.cse8 (= 2 main_~input~0))) (let ((.cse10 (or (= 5 main_~input~0) .cse4 .cse5 .cse6 .cse7 .cse8)) (.cse3 (= ~a8~0 15)) (.cse9 (not (= ~a7~0 1))) (.cse0 (<= ~a17~0 0)) (.cse1 (<= ~a21~0 1)) (.cse2 (<= 1 ~a21~0)) (.cse11 (<= ~a16~0 4)) (.cse12 (<= 4 ~a16~0)) (.cse13 (<= ~a17~0 1))) (or (not (<= 5 |old(~a16~0)|)) (not (<= |old(~a8~0)| 15)) (and .cse0 (= ~a16~0 4) .cse1 .cse2) (and .cse3 (or .cse4 (= ~a16~0 main_~input~0) .cse5 .cse6 .cse7 .cse8) .cse1 .cse9 (= 5 ~a16~0) .cse2 (= ~a17~0 1)) (and (<= ~a17~0 ~a20~0) (= ~a20~0 1)) (and .cse10 .cse11 (or (< 1 ~a7~0) (<= ~a7~0 0)) .cse12 .cse13 .cse1 .cse2 (<= ~a8~0 15) (<= 15 ~a8~0)) (not (= |old(~a21~0)| 1)) (not (<= 1 |old(~a20~0)|)) (not (<= |old(~a17~0)| |old(~a20~0)|)) (and (= ~a20~0 0) (= ~a16~0 6) .cse10 .cse3 .cse13 .cse1 .cse9 .cse2) (not (<= |old(~a20~0)| 1)) (and .cse0 .cse1 (<= 5 ~a16~0) .cse2) (not (<= |old(~a20~0)| |old(~a17~0)|)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (and (<= 1 ~a7~0) (<= 13 ~a8~0) (<= 1 ~a17~0) .cse11 (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))) .cse12 .cse13 (<= ~a7~0 1) (or (< 1 ~a21~0) (<= ~a21~0 0)) (<= ~a8~0 13) (<= ~a20~0 0)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8))))) [2020-10-12 11:09:13,062 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-12 11:09:13,062 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-12 11:09:13,062 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse1 (<= ~a17~0 1)) (.cse5 (= ~a16~0 4)) (.cse0 (= ~a8~0 15)) (.cse4 (or (< 1 ~a7~0) (<= ~a7~0 0))) (.cse6 (<= ~a17~0 0)) (.cse2 (<= ~a21~0 1)) (.cse3 (<= 1 ~a21~0))) (or (and (= ~a20~0 0) (= ~a16~0 6) .cse0 .cse1 .cse2 (not (= ~a7~0 1)) .cse3) (not (<= 5 |old(~a16~0)|)) (and .cse4 .cse1 .cse5 .cse2 .cse3 (<= ~a8~0 15) (<= 15 ~a8~0)) (not (<= |old(~a8~0)| 15)) (and (<= 1 ~a7~0) (<= 13 ~a8~0) (<= 1 ~a17~0) (<= ~a16~0 4) (<= 4 ~a16~0) .cse1 (<= ~a7~0 1) (or (< 1 ~a21~0) (<= ~a21~0 0)) (<= ~a8~0 13) (<= ~a20~0 0)) (and .cse6 .cse5 .cse2 .cse3) (and .cse0 .cse4 .cse2 (= 5 ~a16~0) .cse3 (= ~a17~0 1)) (and (<= ~a17~0 ~a20~0) (= ~a20~0 1)) (not (= |old(~a21~0)| 1)) (not (<= 1 |old(~a20~0)|)) (not (<= |old(~a17~0)| |old(~a20~0)|)) (not (<= |old(~a20~0)| 1)) (and .cse6 .cse2 (<= 5 ~a16~0) .cse3) (not (<= |old(~a20~0)| |old(~a17~0)|)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)))) [2020-10-12 11:09:13,062 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-12 11:09:13,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 11:09:13 BoogieIcfgContainer [2020-10-12 11:09:13,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 11:09:13,087 INFO L168 Benchmark]: Toolchain (without parser) took 143634.81 ms. Allocated memory was 141.0 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 102.2 MB in the beginning and 419.4 MB in the end (delta: -317.2 MB). Peak memory consumption was 997.2 MB. Max. memory is 7.1 GB. [2020-10-12 11:09:13,088 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 11:09:13,088 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.29 ms. Allocated memory was 141.0 MB in the beginning and 205.5 MB in the end (delta: 64.5 MB). Free memory was 102.0 MB in the beginning and 171.3 MB in the end (delta: -69.3 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. [2020-10-12 11:09:13,089 INFO L168 Benchmark]: Boogie Preprocessor took 102.46 ms. Allocated memory is still 205.5 MB. Free memory was 171.3 MB in the beginning and 166.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2020-10-12 11:09:13,089 INFO L168 Benchmark]: RCFGBuilder took 1249.97 ms. Allocated memory was 205.5 MB in the beginning and 237.5 MB in the end (delta: 32.0 MB). Free memory was 166.0 MB in the beginning and 176.6 MB in the end (delta: -10.6 MB). Peak memory consumption was 79.5 MB. Max. memory is 7.1 GB. [2020-10-12 11:09:13,090 INFO L168 Benchmark]: TraceAbstraction took 141546.06 ms. Allocated memory was 237.5 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 176.6 MB in the beginning and 419.4 MB in the end (delta: -242.8 MB). Peak memory consumption was 975.1 MB. Max. memory is 7.1 GB. [2020-10-12 11:09:13,092 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 729.29 ms. Allocated memory was 141.0 MB in the beginning and 205.5 MB in the end (delta: 64.5 MB). Free memory was 102.0 MB in the beginning and 171.3 MB in the end (delta: -69.3 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.46 ms. Allocated memory is still 205.5 MB. Free memory was 171.3 MB in the beginning and 166.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1249.97 ms. Allocated memory was 205.5 MB in the beginning and 237.5 MB in the end (delta: 32.0 MB). Free memory was 166.0 MB in the beginning and 176.6 MB in the end (delta: -10.6 MB). Peak memory consumption was 79.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 141546.06 ms. Allocated memory was 237.5 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 176.6 MB in the beginning and 419.4 MB in the end (delta: -242.8 MB). Peak memory consumption was 975.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 479]: 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: ((((((((((((((((((((((a20 == 0 && a16 == 6) && a8 == 15) && a17 <= 1) && a21 <= 1) && !(a7 == 1)) && 1 <= a21) || !(5 <= \old(a16))) || (((((((1 < a7 || a7 <= 0) && a17 <= 1) && a16 == 4) && a21 <= 1) && 1 <= a21) && a8 <= 15) && 15 <= a8)) || !(\old(a8) <= 15)) || (((((((((1 <= a7 && 13 <= a8) && 1 <= a17) && a16 <= 4) && 4 <= a16) && a17 <= 1) && a7 <= 1) && (1 < a21 || a21 <= 0)) && a8 <= 13) && a20 <= 0)) || (((a17 <= 0 && a16 == 4) && a21 <= 1) && 1 <= a21)) || (((((a8 == 15 && (1 < a7 || a7 <= 0)) && a21 <= 1) && 5 == a16) && 1 <= a21) && a17 == 1)) || (a17 <= a20 && a20 == 1)) || !(\old(a21) == 1)) || !(1 <= \old(a20))) || !(\old(a17) <= \old(a20))) || !(\old(a20) <= 1)) || (((a17 <= 0 && a21 <= 1) && 5 <= a16) && 1 <= a21)) || !(\old(a20) <= \old(a17))) || !(\old(a16) <= 5)) || !(15 <= \old(a8))) || !(\old(a7) == 0)) || !(a12 == 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 136.5s, OverallIterations: 21, TraceHistogramMax: 7, AutomataDifference: 52.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 559 SDtfs, 8442 SDslu, 971 SDs, 0 SdLazy, 19670 SolverSat, 1922 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 588 GetRequests, 233 SyntacticMatches, 15 SemanticMatches, 340 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1313 ImplicationChecksByTransitivity, 35.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3246occurred in iteration=17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 21 MinimizatonAttempts, 1207 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 293 PreInvPairs, 359 NumberOfFragments, 1148 HoareAnnotationTreeSize, 293 FomulaSimplifications, 24412 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 12422 FormulaSimplificationTreeSizeReductionInter, 3.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 79.9s InterpolantComputationTime, 3998 NumberOfCodeBlocks, 3998 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 3977 ConstructedInterpolants, 0 QuantifiedInterpolants, 7575810 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 1 PerfectInterpolantSequences, 2895/3222 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...