/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label16.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 08:48:15,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 08:48:15,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 08:48:16,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 08:48:16,037 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 08:48:16,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 08:48:16,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 08:48:16,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 08:48:16,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 08:48:16,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 08:48:16,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 08:48:16,061 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 08:48:16,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 08:48:16,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 08:48:16,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 08:48:16,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 08:48:16,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 08:48:16,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 08:48:16,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 08:48:16,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 08:48:16,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 08:48:16,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 08:48:16,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 08:48:16,088 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 08:48:16,101 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 08:48:16,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 08:48:16,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 08:48:16,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 08:48:16,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 08:48:16,110 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 08:48:16,110 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 08:48:16,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 08:48:16,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 08:48:16,116 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 08:48:16,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 08:48:16,118 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 08:48:16,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 08:48:16,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 08:48:16,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 08:48:16,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 08:48:16,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 08:48:16,122 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 08:48:16,165 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 08:48:16,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 08:48:16,168 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 08:48:16,168 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 08:48:16,168 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 08:48:16,169 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 08:48:16,169 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 08:48:16,169 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 08:48:16,170 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 08:48:16,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 08:48:16,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 08:48:16,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 08:48:16,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 08:48:16,172 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 08:48:16,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 08:48:16,172 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 08:48:16,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 08:48:16,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 08:48:16,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 08:48:16,173 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 08:48:16,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 08:48:16,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 08:48:16,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 08:48:16,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 08:48:16,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 08:48:16,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 08:48:16,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 08:48:16,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 08:48:16,174 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 08:48:16,175 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 08:48:16,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 08:48:16,494 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 08:48:16,498 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 08:48:16,502 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 08:48:16,503 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 08:48:16,503 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label16.c [2020-10-13 08:48:16,572 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df3d582f6/394b4608a131451b8dd0fdeba01426d6/FLAG636ab897d [2020-10-13 08:48:17,147 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 08:48:17,152 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label16.c [2020-10-13 08:48:17,168 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df3d582f6/394b4608a131451b8dd0fdeba01426d6/FLAG636ab897d [2020-10-13 08:48:17,354 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df3d582f6/394b4608a131451b8dd0fdeba01426d6 [2020-10-13 08:48:17,364 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 08:48:17,366 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 08:48:17,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 08:48:17,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 08:48:17,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 08:48:17,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:48:17" (1/1) ... [2020-10-13 08:48:17,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37fd4afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:48:17, skipping insertion in model container [2020-10-13 08:48:17,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:48:17" (1/1) ... [2020-10-13 08:48:17,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 08:48:17,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 08:48:18,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:48:18,125 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 08:48:18,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:48:18,291 INFO L208 MainTranslator]: Completed translation [2020-10-13 08:48:18,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:48:18 WrapperNode [2020-10-13 08:48:18,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 08:48:18,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 08:48:18,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 08:48:18,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 08:48:18,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:48:18" (1/1) ... [2020-10-13 08:48:18,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:48:18" (1/1) ... [2020-10-13 08:48:18,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:48:18" (1/1) ... [2020-10-13 08:48:18,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:48:18" (1/1) ... [2020-10-13 08:48:18,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:48:18" (1/1) ... [2020-10-13 08:48:18,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:48:18" (1/1) ... [2020-10-13 08:48:18,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:48:18" (1/1) ... [2020-10-13 08:48:18,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 08:48:18,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 08:48:18,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 08:48:18,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 08:48:18,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:48:18" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 08:48:18,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 08:48:18,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 08:48:18,490 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 08:48:18,491 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 08:48:18,492 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 08:48:18,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 08:48:18,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 08:48:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 08:48:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 08:48:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 08:48:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 08:48:20,035 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 08:48:20,035 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 08:48:20,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:48:20 BoogieIcfgContainer [2020-10-13 08:48:20,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 08:48:20,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 08:48:20,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 08:48:20,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 08:48:20,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:48:17" (1/3) ... [2020-10-13 08:48:20,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f6cb399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:48:20, skipping insertion in model container [2020-10-13 08:48:20,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:48:18" (2/3) ... [2020-10-13 08:48:20,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f6cb399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:48:20, skipping insertion in model container [2020-10-13 08:48:20,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:48:20" (3/3) ... [2020-10-13 08:48:20,051 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label16.c [2020-10-13 08:48:20,063 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 08:48:20,073 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 08:48:20,092 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 08:48:20,123 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 08:48:20,123 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 08:48:20,123 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 08:48:20,123 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 08:48:20,124 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 08:48:20,124 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 08:48:20,124 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 08:48:20,124 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 08:48:20,155 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-13 08:48:20,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-13 08:48:20,165 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:20,167 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] [2020-10-13 08:48:20,168 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:20,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:20,175 INFO L82 PathProgramCache]: Analyzing trace with hash 27238371, now seen corresponding path program 1 times [2020-10-13 08:48:20,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:20,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1188502975] [2020-10-13 08:48:20,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:20,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:20,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:20,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:20,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-13 08:48:20,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:20,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 443 [2020-10-13 08:48:20,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:20,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:48:20,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:48:20,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-13 08:48:20,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-13 08:48:21,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:21,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:21,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:21,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:21,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:21,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:21,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:48:21,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:21,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:21,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:21,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:48:21,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 08:48:21,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:48:21,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1188502975] [2020-10-13 08:48:21,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 08:48:21,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 08:48:21,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575606140] [2020-10-13 08:48:21,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:48:21,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:21,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:48:21,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:48:21,150 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 5 states. [2020-10-13 08:48:23,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:23,758 INFO L93 Difference]: Finished difference Result 886 states and 1612 transitions. [2020-10-13 08:48:23,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:48:23,761 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-10-13 08:48:23,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:23,783 INFO L225 Difference]: With dead ends: 886 [2020-10-13 08:48:23,783 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 08:48:23,793 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:48:23,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 08:48:23,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-13 08:48:23,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-13 08:48:23,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 855 transitions. [2020-10-13 08:48:23,900 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 855 transitions. Word has length 52 [2020-10-13 08:48:23,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:23,901 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 855 transitions. [2020-10-13 08:48:23,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:48:23,901 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 855 transitions. [2020-10-13 08:48:23,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-13 08:48:23,907 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:23,908 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:23,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 08:48:23,908 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:23,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:23,909 INFO L82 PathProgramCache]: Analyzing trace with hash 492828333, now seen corresponding path program 1 times [2020-10-13 08:48:23,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:23,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [345670354] [2020-10-13 08:48:23,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:23,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:23,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:24,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:24,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:25,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:25,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-13 08:48:25,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:48:25,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1210 [2020-10-13 08:48:25,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:25,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:25,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-13 08:48:25,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 08:48:25,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:25,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:25,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:25,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:25,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:25,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:25,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:25,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 08:48:25,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:25,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:25,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:25,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:25,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:25,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:25,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:25,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:25,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:25,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:48:25,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:25,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-13 08:48:25,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:25,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:25,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:25,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 08:48:25,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:25,458 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 44 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:48:25,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [345670354] [2020-10-13 08:48:25,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:25,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:48:25,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145758865] [2020-10-13 08:48:25,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:48:25,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:25,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:48:25,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:48:25,475 INFO L87 Difference]: Start difference. First operand 560 states and 855 transitions. Second operand 5 states. [2020-10-13 08:48:26,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:26,674 INFO L93 Difference]: Finished difference Result 1151 states and 1753 transitions. [2020-10-13 08:48:26,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:48:26,675 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2020-10-13 08:48:26,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:26,679 INFO L225 Difference]: With dead ends: 1151 [2020-10-13 08:48:26,680 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 08:48:26,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:48:26,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 08:48:26,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-13 08:48:26,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-13 08:48:26,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 782 transitions. [2020-10-13 08:48:26,725 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 782 transitions. Word has length 121 [2020-10-13 08:48:26,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:26,726 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 782 transitions. [2020-10-13 08:48:26,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:48:26,726 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 782 transitions. [2020-10-13 08:48:26,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-13 08:48:26,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:26,731 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:26,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 08:48:26,732 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:26,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:26,732 INFO L82 PathProgramCache]: Analyzing trace with hash -524171803, now seen corresponding path program 1 times [2020-10-13 08:48:26,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:26,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1057262634] [2020-10-13 08:48:26,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:26,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:26,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:26,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:27,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:27,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-13 08:48:27,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:48:27,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 588 [2020-10-13 08:48:27,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:27,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:27,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-13 08:48:27,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 08:48:27,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:27,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:27,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:27,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:27,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:27,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:27,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:48:27,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:27,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:27,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:27,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:27,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:27,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:27,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:27,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:27,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:48:27,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:27,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 08:48:27,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:27,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:27,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:27,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 08:48:27,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:27,551 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 44 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:48:27,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1057262634] [2020-10-13 08:48:27,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:27,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:48:27,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436004312] [2020-10-13 08:48:27,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:48:27,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:27,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:48:27,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:48:27,554 INFO L87 Difference]: Start difference. First operand 560 states and 782 transitions. Second operand 5 states. [2020-10-13 08:48:29,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:29,030 INFO L93 Difference]: Finished difference Result 1670 states and 2362 transitions. [2020-10-13 08:48:29,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:48:29,030 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 125 [2020-10-13 08:48:29,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:29,039 INFO L225 Difference]: With dead ends: 1670 [2020-10-13 08:48:29,039 INFO L226 Difference]: Without dead ends: 1116 [2020-10-13 08:48:29,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:48:29,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2020-10-13 08:48:29,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 930. [2020-10-13 08:48:29,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 930 states. [2020-10-13 08:48:29,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1214 transitions. [2020-10-13 08:48:29,076 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1214 transitions. Word has length 125 [2020-10-13 08:48:29,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:29,076 INFO L479 AbstractCegarLoop]: Abstraction has 930 states and 1214 transitions. [2020-10-13 08:48:29,077 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:48:29,077 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1214 transitions. [2020-10-13 08:48:29,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-13 08:48:29,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:29,082 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2020-10-13 08:48:29,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 08:48:29,083 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:29,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:29,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1740185263, now seen corresponding path program 1 times [2020-10-13 08:48:29,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:29,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [571504516] [2020-10-13 08:48:29,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:29,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:29,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:29,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:29,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:29,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:32,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:34,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:34,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-13 08:48:34,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:48:34,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-13 08:48:34,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:34,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:34,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-13 08:48:34,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 08:48:34,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:34,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:34,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:34,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:34,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:34,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:34,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:34,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:48:34,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:34,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:34,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:34,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:34,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:34,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:34,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:34,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:34,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:34,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:48:34,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:34,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:48:34,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:34,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:34,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:34,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:34,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:34,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:48:34,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:34,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:34,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:34,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 08:48:34,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:34,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-13 08:48:34,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:34,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:34,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:34,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 08:48:34,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:34,473 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 91 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-13 08:48:34,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [571504516] [2020-10-13 08:48:34,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:34,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:48:34,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688516342] [2020-10-13 08:48:34,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:48:34,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:34,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:48:34,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:48:34,480 INFO L87 Difference]: Start difference. First operand 930 states and 1214 transitions. Second operand 5 states. [2020-10-13 08:48:35,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:35,536 INFO L93 Difference]: Finished difference Result 1870 states and 2453 transitions. [2020-10-13 08:48:35,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:48:35,542 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 208 [2020-10-13 08:48:35,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:35,551 INFO L225 Difference]: With dead ends: 1870 [2020-10-13 08:48:35,551 INFO L226 Difference]: Without dead ends: 934 [2020-10-13 08:48:35,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:48:35,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2020-10-13 08:48:35,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 930. [2020-10-13 08:48:35,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 930 states. [2020-10-13 08:48:35,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1211 transitions. [2020-10-13 08:48:35,587 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1211 transitions. Word has length 208 [2020-10-13 08:48:35,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:35,590 INFO L479 AbstractCegarLoop]: Abstraction has 930 states and 1211 transitions. [2020-10-13 08:48:35,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:48:35,590 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1211 transitions. [2020-10-13 08:48:35,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-10-13 08:48:35,596 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:35,596 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2020-10-13 08:48:35,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 08:48:35,597 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:35,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:35,597 INFO L82 PathProgramCache]: Analyzing trace with hash 630795096, now seen corresponding path program 1 times [2020-10-13 08:48:35,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:35,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [762053301] [2020-10-13 08:48:35,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:35,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:35,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:35,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:35,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:36,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:38,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:40,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:40,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 231 [2020-10-13 08:48:40,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:48:40,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 08:48:40,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:40,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:40,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 179 [2020-10-13 08:48:40,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 08:48:40,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:40,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:40,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:40,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:40,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:40,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:40,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:48:40,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:40,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:40,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:40,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:40,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:40,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:40,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:40,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:40,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:48:40,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:40,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:48:40,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:40,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:40,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:40,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:40,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:40,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:48:40,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:40,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:40,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:40,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-13 08:48:40,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:40,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 08:48:40,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:40,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:40,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:40,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 08:48:40,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 08:48:41,079 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 91 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-13 08:48:41,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [762053301] [2020-10-13 08:48:41,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:41,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:48:41,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037186560] [2020-10-13 08:48:41,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:48:41,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:41,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:48:41,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:48:41,083 INFO L87 Difference]: Start difference. First operand 930 states and 1211 transitions. Second operand 5 states. [2020-10-13 08:48:42,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:42,269 INFO L93 Difference]: Finished difference Result 1883 states and 2460 transitions. [2020-10-13 08:48:42,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:48:42,271 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 219 [2020-10-13 08:48:42,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:42,279 INFO L225 Difference]: With dead ends: 1883 [2020-10-13 08:48:42,279 INFO L226 Difference]: Without dead ends: 934 [2020-10-13 08:48:42,283 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:48:42,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2020-10-13 08:48:42,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 930. [2020-10-13 08:48:42,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 930 states. [2020-10-13 08:48:42,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1208 transitions. [2020-10-13 08:48:42,321 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1208 transitions. Word has length 219 [2020-10-13 08:48:42,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:42,321 INFO L479 AbstractCegarLoop]: Abstraction has 930 states and 1208 transitions. [2020-10-13 08:48:42,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:48:42,322 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1208 transitions. [2020-10-13 08:48:42,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-10-13 08:48:42,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:42,325 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2020-10-13 08:48:42,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 08:48:42,326 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:42,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:42,326 INFO L82 PathProgramCache]: Analyzing trace with hash 2103680911, now seen corresponding path program 1 times [2020-10-13 08:48:42,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:42,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1292290281] [2020-10-13 08:48:42,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:42,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:42,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:42,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:42,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:45,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:47,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:47,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-10-13 08:48:47,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:48:47,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 08:48:47,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:47,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:47,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 184 [2020-10-13 08:48:47,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 08:48:47,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:47,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:47,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:47,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:47,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:47,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:47,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:47,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:48:47,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:47,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:47,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:47,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:47,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:47,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:47,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:47,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:47,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:47,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:48:47,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:47,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 08:48:47,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:47,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:47,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:47,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:47,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:47,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:48:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:47,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:47,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:47,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:48:47,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:47,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-13 08:48:47,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:47,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:47,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:47,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-13 08:48:47,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:47,725 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 91 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-13 08:48:47,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1292290281] [2020-10-13 08:48:47,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:47,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:48:47,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254050451] [2020-10-13 08:48:47,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:48:47,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:47,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:48:47,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:48:47,730 INFO L87 Difference]: Start difference. First operand 930 states and 1208 transitions. Second operand 5 states. [2020-10-13 08:48:48,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:48,877 INFO L93 Difference]: Finished difference Result 1881 states and 2452 transitions. [2020-10-13 08:48:48,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:48:48,878 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 224 [2020-10-13 08:48:48,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:48,885 INFO L225 Difference]: With dead ends: 1881 [2020-10-13 08:48:48,885 INFO L226 Difference]: Without dead ends: 934 [2020-10-13 08:48:48,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:48:48,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2020-10-13 08:48:48,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 930. [2020-10-13 08:48:48,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 930 states. [2020-10-13 08:48:48,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1205 transitions. [2020-10-13 08:48:48,939 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1205 transitions. Word has length 224 [2020-10-13 08:48:48,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:48,940 INFO L479 AbstractCegarLoop]: Abstraction has 930 states and 1205 transitions. [2020-10-13 08:48:48,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:48:48,940 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1205 transitions. [2020-10-13 08:48:48,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-10-13 08:48:48,946 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:48,947 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2020-10-13 08:48:48,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 08:48:48,949 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:48,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:48,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1818012380, now seen corresponding path program 1 times [2020-10-13 08:48:48,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:48,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [814661312] [2020-10-13 08:48:48,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:49,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:49,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:49,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:50,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:51,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:51,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:53,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:53,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-10-13 08:48:53,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 08:48:53,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-13 08:48:53,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:53,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:53,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-13 08:48:53,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 08:48:53,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:54,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:54,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:54,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:54,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:54,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:54,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:54,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:48:54,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:54,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:54,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:54,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:54,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:54,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:54,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:54,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:54,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:48:54,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:54,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:48:54,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:54,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:54,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:54,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:54,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:54,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:48:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:54,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:54,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:54,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 08:48:54,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:54,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 08:48:54,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:54,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:54,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:54,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-13 08:48:54,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:54,289 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 91 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-13 08:48:54,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [814661312] [2020-10-13 08:48:54,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:54,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:48:54,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129653421] [2020-10-13 08:48:54,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:48:54,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:54,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:48:54,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:48:54,293 INFO L87 Difference]: Start difference. First operand 930 states and 1205 transitions. Second operand 5 states. [2020-10-13 08:48:55,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:55,377 INFO L93 Difference]: Finished difference Result 1884 states and 2449 transitions. [2020-10-13 08:48:55,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:48:55,380 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 229 [2020-10-13 08:48:55,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:55,385 INFO L225 Difference]: With dead ends: 1884 [2020-10-13 08:48:55,385 INFO L226 Difference]: Without dead ends: 934 [2020-10-13 08:48:55,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:48:55,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2020-10-13 08:48:55,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 930. [2020-10-13 08:48:55,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 930 states. [2020-10-13 08:48:55,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1202 transitions. [2020-10-13 08:48:55,415 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1202 transitions. Word has length 229 [2020-10-13 08:48:55,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:55,416 INFO L479 AbstractCegarLoop]: Abstraction has 930 states and 1202 transitions. [2020-10-13 08:48:55,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:48:55,416 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1202 transitions. [2020-10-13 08:48:55,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-10-13 08:48:55,420 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:55,421 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:55,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 08:48:55,421 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:55,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:55,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1584492377, now seen corresponding path program 1 times [2020-10-13 08:48:55,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:55,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [450703288] [2020-10-13 08:48:55,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:55,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:55,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:55,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:56,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:58,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:58,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-10-13 08:48:58,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:48:58,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3443 [2020-10-13 08:48:58,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:58,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:58,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 204 [2020-10-13 08:48:58,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 08:48:58,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:58,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:58,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:58,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:58,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:58,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:58,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:48:58,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:58,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:58,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:58,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:58,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:58,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:58,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:58,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:58,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:58,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:48:58,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:58,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:48:58,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:58,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:58,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:58,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:58,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:59,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:48:59,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:59,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:59,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:59,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:48:59,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:59,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 08:48:59,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:59,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:59,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:59,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-13 08:48:59,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:59,132 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 91 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-13 08:48:59,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [450703288] [2020-10-13 08:48:59,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:59,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 08:48:59,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865611769] [2020-10-13 08:48:59,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 08:48:59,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:59,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 08:48:59,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:48:59,134 INFO L87 Difference]: Start difference. First operand 930 states and 1202 transitions. Second operand 6 states. [2020-10-13 08:49:01,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:01,028 INFO L93 Difference]: Finished difference Result 1672 states and 2228 transitions. [2020-10-13 08:49:01,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:49:01,029 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 244 [2020-10-13 08:49:01,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:01,039 INFO L225 Difference]: With dead ends: 1672 [2020-10-13 08:49:01,039 INFO L226 Difference]: Without dead ends: 1670 [2020-10-13 08:49:01,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:49:01,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2020-10-13 08:49:01,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 1114. [2020-10-13 08:49:01,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1114 states. [2020-10-13 08:49:01,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 1479 transitions. [2020-10-13 08:49:01,084 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 1479 transitions. Word has length 244 [2020-10-13 08:49:01,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:01,085 INFO L479 AbstractCegarLoop]: Abstraction has 1114 states and 1479 transitions. [2020-10-13 08:49:01,085 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 08:49:01,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 1479 transitions. [2020-10-13 08:49:01,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2020-10-13 08:49:01,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:01,090 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:49:01,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 08:49:01,091 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:01,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:01,091 INFO L82 PathProgramCache]: Analyzing trace with hash -897525973, now seen corresponding path program 1 times [2020-10-13 08:49:01,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:01,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1173235323] [2020-10-13 08:49:01,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:01,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:01,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:01,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:01,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:01,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:06,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:06,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:06,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-13 08:49:06,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:49:06,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-13 08:49:06,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:06,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:06,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-13 08:49:06,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 08:49:06,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:06,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:06,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:06,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:06,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:06,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:06,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:06,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:49:06,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:06,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:06,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:06,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:06,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:06,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:06,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:06,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:06,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:06,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:49:06,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:06,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:49:06,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:06,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:06,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:06,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:06,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:06,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:49:06,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:06,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:06,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:06,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-13 08:49:06,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:06,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-13 08:49:06,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:06,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:06,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:06,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-13 08:49:06,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:06,639 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 91 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-13 08:49:06,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1173235323] [2020-10-13 08:49:06,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:06,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:49:06,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322336430] [2020-10-13 08:49:06,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:49:06,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:06,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:49:06,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:49:06,648 INFO L87 Difference]: Start difference. First operand 1114 states and 1479 transitions. Second operand 5 states. [2020-10-13 08:49:07,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:07,528 INFO L93 Difference]: Finished difference Result 2237 states and 2984 transitions. [2020-10-13 08:49:07,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:49:07,528 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 290 [2020-10-13 08:49:07,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:07,534 INFO L225 Difference]: With dead ends: 2237 [2020-10-13 08:49:07,534 INFO L226 Difference]: Without dead ends: 1118 [2020-10-13 08:49:07,538 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:49:07,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2020-10-13 08:49:07,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1114. [2020-10-13 08:49:07,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1114 states. [2020-10-13 08:49:07,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 1475 transitions. [2020-10-13 08:49:07,571 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 1475 transitions. Word has length 290 [2020-10-13 08:49:07,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:07,572 INFO L479 AbstractCegarLoop]: Abstraction has 1114 states and 1475 transitions. [2020-10-13 08:49:07,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:49:07,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 1475 transitions. [2020-10-13 08:49:07,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2020-10-13 08:49:07,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:07,577 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:49:07,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 08:49:07,578 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:07,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:07,578 INFO L82 PathProgramCache]: Analyzing trace with hash -981870749, now seen corresponding path program 1 times [2020-10-13 08:49:07,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:07,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [390608061] [2020-10-13 08:49:07,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:07,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:07,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:07,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:09,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:10,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:12,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:12,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 306 [2020-10-13 08:49:12,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:49:12,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-13 08:49:12,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:12,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:12,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 254 [2020-10-13 08:49:12,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 08:49:12,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:12,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:12,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:12,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:12,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:12,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:12,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:12,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:49:12,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:12,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:12,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:12,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:12,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:12,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:12,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:12,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:12,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:12,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:49:12,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:12,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 08:49:12,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:12,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:12,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:12,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:12,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:12,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:49:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:12,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:12,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:12,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-13 08:49:12,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:12,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-13 08:49:12,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:12,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:12,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:12,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-13 08:49:12,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:12,990 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 91 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-13 08:49:12,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [390608061] [2020-10-13 08:49:12,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:12,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:49:12,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016284146] [2020-10-13 08:49:12,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:49:12,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:12,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:49:12,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:49:12,992 INFO L87 Difference]: Start difference. First operand 1114 states and 1475 transitions. Second operand 5 states. [2020-10-13 08:49:13,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:13,932 INFO L93 Difference]: Finished difference Result 2248 states and 2986 transitions. [2020-10-13 08:49:13,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:49:13,932 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 294 [2020-10-13 08:49:13,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:13,938 INFO L225 Difference]: With dead ends: 2248 [2020-10-13 08:49:13,938 INFO L226 Difference]: Without dead ends: 1118 [2020-10-13 08:49:13,941 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:49:13,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2020-10-13 08:49:13,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1114. [2020-10-13 08:49:13,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1114 states. [2020-10-13 08:49:13,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 1470 transitions. [2020-10-13 08:49:13,969 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 1470 transitions. Word has length 294 [2020-10-13 08:49:13,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:13,969 INFO L479 AbstractCegarLoop]: Abstraction has 1114 states and 1470 transitions. [2020-10-13 08:49:13,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:49:13,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 1470 transitions. [2020-10-13 08:49:13,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2020-10-13 08:49:13,976 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:13,977 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:49:13,977 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 08:49:13,977 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:13,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:13,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1349177497, now seen corresponding path program 1 times [2020-10-13 08:49:13,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:13,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [202772029] [2020-10-13 08:49:13,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:14,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:14,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:14,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:14,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:15,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:17,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:17,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 372 [2020-10-13 08:49:17,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:49:17,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3173 [2020-10-13 08:49:17,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:17,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:17,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 320 [2020-10-13 08:49:17,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 08:49:17,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:17,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:17,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:17,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:17,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:17,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:17,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:17,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:49:17,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:17,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:17,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:17,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:17,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:17,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:17,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:17,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:17,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:49:17,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:17,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 08:49:17,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:17,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:17,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:17,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:17,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:17,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:49:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:17,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:17,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:17,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 08:49:17,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:17,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-13 08:49:17,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:17,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:17,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:17,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-13 08:49:17,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:17,534 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 91 proven. 2 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-13 08:49:17,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [202772029] [2020-10-13 08:49:17,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:17,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:49:17,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58790433] [2020-10-13 08:49:17,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:49:17,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:17,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:49:17,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:49:17,537 INFO L87 Difference]: Start difference. First operand 1114 states and 1470 transitions. Second operand 5 states. [2020-10-13 08:49:18,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:18,518 INFO L93 Difference]: Finished difference Result 2240 states and 2968 transitions. [2020-10-13 08:49:18,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:49:18,519 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 360 [2020-10-13 08:49:18,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:18,525 INFO L225 Difference]: With dead ends: 2240 [2020-10-13 08:49:18,525 INFO L226 Difference]: Without dead ends: 1118 [2020-10-13 08:49:18,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:49:18,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2020-10-13 08:49:18,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1114. [2020-10-13 08:49:18,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1114 states. [2020-10-13 08:49:18,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 1467 transitions. [2020-10-13 08:49:18,557 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 1467 transitions. Word has length 360 [2020-10-13 08:49:18,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:18,557 INFO L479 AbstractCegarLoop]: Abstraction has 1114 states and 1467 transitions. [2020-10-13 08:49:18,557 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:49:18,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 1467 transitions. [2020-10-13 08:49:18,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2020-10-13 08:49:18,565 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:18,566 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:49:18,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 08:49:18,566 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:18,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:18,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1882460773, now seen corresponding path program 1 times [2020-10-13 08:49:18,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:18,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [463279243] [2020-10-13 08:49:18,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:18,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:18,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:18,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:19,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:19,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:23,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:23,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 394 [2020-10-13 08:49:23,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:49:23,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 08:49:23,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:23,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:23,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 342 [2020-10-13 08:49:23,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 08:49:23,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:23,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:23,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:23,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:23,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:23,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:23,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:49:23,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:23,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:23,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:23,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:23,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:23,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:23,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:23,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:23,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:49:23,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:23,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:49:23,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:23,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:23,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:23,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:23,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:23,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:49:23,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:23,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:23,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:23,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:49:23,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:23,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-13 08:49:23,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:23,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:23,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:23,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-13 08:49:23,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:24,002 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 91 proven. 2 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2020-10-13 08:49:24,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [463279243] [2020-10-13 08:49:24,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:24,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:49:24,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407492451] [2020-10-13 08:49:24,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:49:24,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:24,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:49:24,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:49:24,004 INFO L87 Difference]: Start difference. First operand 1114 states and 1467 transitions. Second operand 5 states. [2020-10-13 08:49:24,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:24,903 INFO L93 Difference]: Finished difference Result 2236 states and 2958 transitions. [2020-10-13 08:49:24,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:49:24,904 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 382 [2020-10-13 08:49:24,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:24,909 INFO L225 Difference]: With dead ends: 2236 [2020-10-13 08:49:24,910 INFO L226 Difference]: Without dead ends: 1118 [2020-10-13 08:49:24,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:49:24,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2020-10-13 08:49:24,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1114. [2020-10-13 08:49:24,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1114 states. [2020-10-13 08:49:24,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 1464 transitions. [2020-10-13 08:49:24,939 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 1464 transitions. Word has length 382 [2020-10-13 08:49:24,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:24,940 INFO L479 AbstractCegarLoop]: Abstraction has 1114 states and 1464 transitions. [2020-10-13 08:49:24,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:49:24,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 1464 transitions. [2020-10-13 08:49:24,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2020-10-13 08:49:24,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:24,944 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:49:24,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 08:49:24,944 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:24,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:24,945 INFO L82 PathProgramCache]: Analyzing trace with hash -434244425, now seen corresponding path program 1 times [2020-10-13 08:49:24,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:24,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1799149824] [2020-10-13 08:49:24,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:24,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:25,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:25,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:25,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:27,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:27,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:30,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:30,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 396 [2020-10-13 08:49:30,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:49:30,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 08:49:30,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:30,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:30,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 344 [2020-10-13 08:49:30,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-13 08:49:30,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:30,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:30,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:30,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:30,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:30,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:30,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:49:30,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:30,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:30,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:30,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:30,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:30,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:30,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:30,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:30,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:30,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:49:30,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:30,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:49:30,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:30,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:30,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:30,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:30,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:30,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:49:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:30,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:30,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:30,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:49:30,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:30,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-13 08:49:30,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:30,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:30,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:30,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-13 08:49:30,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:30,368 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 91 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2020-10-13 08:49:30,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1799149824] [2020-10-13 08:49:30,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:30,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:49:30,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691250075] [2020-10-13 08:49:30,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:49:30,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:30,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:49:30,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:49:30,371 INFO L87 Difference]: Start difference. First operand 1114 states and 1464 transitions. Second operand 5 states. [2020-10-13 08:49:31,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:31,295 INFO L93 Difference]: Finished difference Result 2070 states and 2697 transitions. [2020-10-13 08:49:31,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:49:31,300 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 384 [2020-10-13 08:49:31,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:31,301 INFO L225 Difference]: With dead ends: 2070 [2020-10-13 08:49:31,301 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 08:49:31,305 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:49:31,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 08:49:31,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 08:49:31,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 08:49:31,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 08:49:31,306 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 384 [2020-10-13 08:49:31,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:31,307 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 08:49:31,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:49:31,307 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 08:49:31,307 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 08:49:31,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 08:49:31,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 08:49:31,586 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 64 [2020-10-13 08:49:31,731 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 64 [2020-10-13 08:49:32,297 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 82 [2020-10-13 08:49:32,498 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2020-10-13 08:49:32,641 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2020-10-13 08:49:32,645 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 08:49:32,645 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a21~0 |old(~a21~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a15~0 |old(~a15~0)|)) [2020-10-13 08:49:32,646 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 08:49:32,646 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-10-13 08:49:32,646 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-10-13 08:49:32,646 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,646 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,646 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,646 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-10-13 08:49:32,647 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-10-13 08:49:32,647 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-10-13 08:49:32,647 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-10-13 08:49:32,647 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-10-13 08:49:32,647 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-10-13 08:49:32,647 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-10-13 08:49:32,647 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-10-13 08:49:32,647 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,647 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,647 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,648 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-10-13 08:49:32,648 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-10-13 08:49:32,648 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-10-13 08:49:32,648 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-10-13 08:49:32,648 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-10-13 08:49:32,648 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-10-13 08:49:32,648 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-10-13 08:49:32,648 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-10-13 08:49:32,648 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,648 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,649 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,649 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-10-13 08:49:32,649 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-10-13 08:49:32,649 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-10-13 08:49:32,649 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-10-13 08:49:32,649 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-10-13 08:49:32,649 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-10-13 08:49:32,649 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-10-13 08:49:32,650 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-10-13 08:49:32,650 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-10-13 08:49:32,650 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,650 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,650 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,650 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-10-13 08:49:32,650 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-10-13 08:49:32,650 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-10-13 08:49:32,650 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-10-13 08:49:32,651 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-10-13 08:49:32,651 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-10-13 08:49:32,651 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-10-13 08:49:32,651 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,651 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,651 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,651 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-10-13 08:49:32,651 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-10-13 08:49:32,652 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-10-13 08:49:32,652 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-10-13 08:49:32,652 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-10-13 08:49:32,652 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-10-13 08:49:32,652 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-10-13 08:49:32,652 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-10-13 08:49:32,652 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-10-13 08:49:32,652 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,652 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,652 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,653 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,653 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-10-13 08:49:32,653 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-10-13 08:49:32,653 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-10-13 08:49:32,653 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-10-13 08:49:32,653 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-10-13 08:49:32,653 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-10-13 08:49:32,653 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-10-13 08:49:32,653 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-10-13 08:49:32,654 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,654 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,654 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,654 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-10-13 08:49:32,654 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-10-13 08:49:32,654 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-10-13 08:49:32,654 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-10-13 08:49:32,654 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-10-13 08:49:32,654 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-10-13 08:49:32,655 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-10-13 08:49:32,655 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-10-13 08:49:32,655 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,655 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,655 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,655 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-10-13 08:49:32,655 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-10-13 08:49:32,655 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-10-13 08:49:32,655 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-10-13 08:49:32,655 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-10-13 08:49:32,656 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-10-13 08:49:32,656 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse12 (= 5 |old(~a15~0)|)) (.cse9 (= 5 ~a15~0)) (.cse13 (= ~a21~0 |old(~a21~0)|)) (.cse10 (= ~a24~0 1)) (.cse11 (= ~a12~0 |old(~a12~0)|))) (let ((.cse0 (not (= 10 |old(~a21~0)|))) (.cse2 (and .cse9 .cse13 .cse10 .cse11)) (.cse6 (and (= ~a24~0 |old(~a24~0)|) .cse13 .cse11 (= ~a15~0 |old(~a15~0)|))) (.cse4 (not (<= |old(~a12~0)| 80))) (.cse1 (not (= |old(~a24~0)| 1))) (.cse3 (not (<= 12 |old(~a12~0)|))) (.cse7 (not (= 9 |old(~a21~0)|))) (.cse8 (and .cse9 .cse10 (= ~a21~0 9) .cse11)) (.cse5 (not .cse12))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse1 (not (<= (+ |old(~a12~0)| 1) 0)) .cse2 (not (<= 0 (+ |old(~a12~0)| 7))) .cse5) (or .cse6 (not (<= |old(~a21~0)| 6))) (or (not (<= (+ |old(~a12~0)| 7499) 0)) .cse1 .cse7 .cse8 .cse5) (or .cse0 .cse1 .cse2 (not (<= 657 |old(~a12~0)|)) .cse5) (or (not (= 7 |old(~a21~0)|)) .cse1 (not (<= 58 |old(~a12~0)|)) (and .cse9 .cse10 .cse11 (= 7 ~a21~0)) (not (<= |old(~a12~0)| 68)) .cse5) (or .cse12 .cse6) (or .cse1 (not (= 8 |old(~a21~0)|)) .cse3 .cse4 (and .cse9 .cse10 (= ~a21~0 8) .cse11) .cse5) (or (not (<= |old(~a12~0)| 78)) .cse1 .cse3 .cse7 .cse8 .cse5)))) [2020-10-13 08:49:32,656 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-10-13 08:49:32,656 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-10-13 08:49:32,656 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,657 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,657 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,657 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-10-13 08:49:32,657 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-10-13 08:49:32,657 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-10-13 08:49:32,657 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-10-13 08:49:32,657 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-10-13 08:49:32,657 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-10-13 08:49:32,657 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-10-13 08:49:32,657 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-10-13 08:49:32,657 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,658 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,658 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,658 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-10-13 08:49:32,658 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-10-13 08:49:32,658 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-10-13 08:49:32,658 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-10-13 08:49:32,658 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-10-13 08:49:32,658 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-10-13 08:49:32,658 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-10-13 08:49:32,658 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-10-13 08:49:32,659 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,659 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,659 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,659 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-10-13 08:49:32,659 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-10-13 08:49:32,659 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-10-13 08:49:32,659 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-10-13 08:49:32,659 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-10-13 08:49:32,659 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-10-13 08:49:32,659 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-10-13 08:49:32,660 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-10-13 08:49:32,660 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,660 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,660 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,660 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-10-13 08:49:32,660 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-10-13 08:49:32,660 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-10-13 08:49:32,660 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-10-13 08:49:32,660 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-10-13 08:49:32,660 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-10-13 08:49:32,661 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-10-13 08:49:32,661 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-10-13 08:49:32,661 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,661 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,661 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-10-13 08:49:32,661 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-10-13 08:49:32,661 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-10-13 08:49:32,661 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-10-13 08:49:32,661 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-10-13 08:49:32,661 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-10-13 08:49:32,662 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-10-13 08:49:32,662 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-10-13 08:49:32,662 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 142) no Hoare annotation was computed. [2020-10-13 08:49:32,662 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,662 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,662 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-10-13 08:49:32,662 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-10-13 08:49:32,662 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-10-13 08:49:32,662 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-10-13 08:49:32,662 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-10-13 08:49:32,663 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-10-13 08:49:32,663 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,663 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,663 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-10-13 08:49:32,663 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-10-13 08:49:32,663 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-10-13 08:49:32,663 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-10-13 08:49:32,663 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-10-13 08:49:32,663 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-10-13 08:49:32,663 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-10-13 08:49:32,664 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-10-13 08:49:32,664 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,664 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,664 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-10-13 08:49:32,664 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-10-13 08:49:32,664 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-10-13 08:49:32,664 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-10-13 08:49:32,664 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-10-13 08:49:32,664 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-10-13 08:49:32,664 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-10-13 08:49:32,665 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,665 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,665 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,665 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-10-13 08:49:32,665 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-10-13 08:49:32,665 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-10-13 08:49:32,665 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-10-13 08:49:32,665 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-10-13 08:49:32,665 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-10-13 08:49:32,665 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,665 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,666 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-10-13 08:49:32,666 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,666 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-10-13 08:49:32,666 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-10-13 08:49:32,666 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-10-13 08:49:32,666 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-10-13 08:49:32,666 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-10-13 08:49:32,666 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-10-13 08:49:32,667 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-10-13 08:49:32,667 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-10-13 08:49:32,667 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-10-13 08:49:32,667 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-10-13 08:49:32,667 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,667 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,667 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,667 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-10-13 08:49:32,667 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-10-13 08:49:32,668 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-10-13 08:49:32,668 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-10-13 08:49:32,668 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-10-13 08:49:32,668 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-10-13 08:49:32,668 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-10-13 08:49:32,668 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-10-13 08:49:32,668 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,668 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,669 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,669 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-10-13 08:49:32,669 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-10-13 08:49:32,669 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-10-13 08:49:32,669 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-10-13 08:49:32,669 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-10-13 08:49:32,669 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-10-13 08:49:32,669 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-10-13 08:49:32,669 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-10-13 08:49:32,670 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,670 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,670 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,670 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-10-13 08:49:32,670 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-10-13 08:49:32,670 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-10-13 08:49:32,670 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-10-13 08:49:32,670 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-10-13 08:49:32,671 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-10-13 08:49:32,671 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-10-13 08:49:32,671 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-10-13 08:49:32,671 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-10-13 08:49:32,671 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,671 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,671 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:32,671 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-10-13 08:49:32,671 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-10-13 08:49:32,672 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-10-13 08:49:32,672 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-10-13 08:49:32,672 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-10-13 08:49:32,672 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 08:49:32,672 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (= ~a15~0 8) [2020-10-13 08:49:32,672 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 08:49:32,672 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 08:49:32,673 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (and (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a15~0 |old(~a15~0)|)) (not (= 8 |old(~a15~0)|))) [2020-10-13 08:49:32,673 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-10-13 08:49:32,673 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse0 (<= 12 ~a12~0)) (.cse3 (<= ~a12~0 80)) (.cse2 (= ~a21~0 9)) (.cse4 (= ~a21~0 10)) (.cse1 (= ~a24~0 1))) (or (not (= 5 ~a15~0)) (and .cse0 .cse1 .cse2 (<= ~a12~0 78)) (and .cse0 .cse1 .cse3 (= ~a21~0 8)) (not (= 8 |old(~a15~0)|)) (and (<= 58 ~a12~0) .cse1 (<= ~a12~0 68) (= 7 ~a21~0)) (and .cse0 .cse4 .cse1 .cse3) (<= ~a21~0 6) (and .cse1 .cse2 (<= (+ ~a12~0 7499) 0)) (and (<= (+ ~a12~0 1) 0) .cse4 (<= 0 (+ ~a12~0 7)) .cse1) (and (<= 657 ~a12~0) .cse4 .cse1))) [2020-10-13 08:49:32,673 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-10-13 08:49:32,673 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-10-13 08:49:32,673 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse0 (<= 12 ~a12~0)) (.cse3 (<= ~a12~0 80)) (.cse2 (= ~a21~0 9)) (.cse4 (= ~a21~0 10)) (.cse1 (= ~a24~0 1))) (or (not (= 5 ~a15~0)) (and .cse0 .cse1 .cse2 (<= ~a12~0 78)) (and .cse0 .cse1 .cse3 (= ~a21~0 8)) (not (= 8 |old(~a15~0)|)) (and (<= 58 ~a12~0) .cse1 (<= ~a12~0 68) (= 7 ~a21~0)) (and .cse0 .cse4 .cse1 .cse3) (<= ~a21~0 6) (and .cse1 .cse2 (<= (+ ~a12~0 7499) 0)) (and (<= (+ ~a12~0 1) 0) .cse4 (<= 0 (+ ~a12~0 7)) .cse1) (and (<= 657 ~a12~0) .cse4 .cse1))) [2020-10-13 08:49:32,674 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-10-13 08:49:32,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:49:32 BoogieIcfgContainer [2020-10-13 08:49:32,698 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 08:49:32,700 INFO L168 Benchmark]: Toolchain (without parser) took 75334.40 ms. Allocated memory was 147.3 MB in the beginning and 1.1 GB in the end (delta: 953.2 MB). Free memory was 102.3 MB in the beginning and 1.0 GB in the end (delta: -901.5 MB). Peak memory consumption was 971.8 MB. Max. memory is 7.1 GB. [2020-10-13 08:49:32,701 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 08:49:32,702 INFO L168 Benchmark]: CACSL2BoogieTranslator took 924.59 ms. Allocated memory was 147.3 MB in the beginning and 208.1 MB in the end (delta: 60.8 MB). Free memory was 102.1 MB in the beginning and 170.9 MB in the end (delta: -68.8 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. [2020-10-13 08:49:32,703 INFO L168 Benchmark]: Boogie Preprocessor took 125.53 ms. Allocated memory is still 208.1 MB. Free memory was 170.9 MB in the beginning and 165.1 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. [2020-10-13 08:49:32,703 INFO L168 Benchmark]: RCFGBuilder took 1624.14 ms. Allocated memory was 208.1 MB in the beginning and 236.5 MB in the end (delta: 28.3 MB). Free memory was 165.1 MB in the beginning and 153.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 77.6 MB. Max. memory is 7.1 GB. [2020-10-13 08:49:32,704 INFO L168 Benchmark]: TraceAbstraction took 72655.04 ms. Allocated memory was 236.5 MB in the beginning and 1.1 GB in the end (delta: 864.0 MB). Free memory was 153.3 MB in the beginning and 1.0 GB in the end (delta: -850.5 MB). Peak memory consumption was 933.7 MB. Max. memory is 7.1 GB. [2020-10-13 08:49:32,708 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 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 924.59 ms. Allocated memory was 147.3 MB in the beginning and 208.1 MB in the end (delta: 60.8 MB). Free memory was 102.1 MB in the beginning and 170.9 MB in the end (delta: -68.8 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.53 ms. Allocated memory is still 208.1 MB. Free memory was 170.9 MB in the beginning and 165.1 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1624.14 ms. Allocated memory was 208.1 MB in the beginning and 236.5 MB in the end (delta: 28.3 MB). Free memory was 165.1 MB in the beginning and 153.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 77.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 72655.04 ms. Allocated memory was 236.5 MB in the beginning and 1.1 GB in the end (delta: 864.0 MB). Free memory was 153.3 MB in the beginning and 1.0 GB in the end (delta: -850.5 MB). Peak memory consumption was 933.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 142]: 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: 880]: Loop Invariant Derived loop invariant: ((((((((!(5 == a15) || (((12 <= a12 && a24 == 1) && a21 == 9) && a12 <= 78)) || (((12 <= a12 && a24 == 1) && a12 <= 80) && a21 == 8)) || !(8 == \old(a15))) || (((58 <= a12 && a24 == 1) && a12 <= 68) && 7 == a21)) || (((12 <= a12 && a21 == 10) && a24 == 1) && a12 <= 80)) || a21 <= 6) || ((a24 == 1 && a21 == 9) && a12 + 7499 <= 0)) || (((a12 + 1 <= 0 && a21 == 10) && 0 <= a12 + 7) && a24 == 1)) || ((657 <= a12 && a21 == 10) && a24 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 71.1s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 16.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 321 SDtfs, 3962 SDslu, 285 SDs, 0 SdLazy, 10623 SolverSat, 577 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 162 GetRequests, 97 SyntacticMatches, 10 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1114occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 782 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 79 PreInvPairs, 111 NumberOfFragments, 531 HoareAnnotationTreeSize, 79 FomulaSimplifications, 566470 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 822 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 52.5s InterpolantComputationTime, 3132 NumberOfCodeBlocks, 3132 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 3119 ConstructedInterpolants, 0 QuantifiedInterpolants, 1903776 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 1912/1934 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...