/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/Problem10_label50.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 08:04:27,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 08:04:27,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 08:04:27,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 08:04:27,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 08:04:27,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 08:04:27,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 08:04:27,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 08:04:27,838 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 08:04:27,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 08:04:27,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 08:04:27,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 08:04:27,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 08:04:27,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 08:04:27,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 08:04:27,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 08:04:27,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 08:04:27,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 08:04:27,856 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 08:04:27,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 08:04:27,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 08:04:27,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 08:04:27,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 08:04:27,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 08:04:27,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 08:04:27,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 08:04:27,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 08:04:27,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 08:04:27,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 08:04:27,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 08:04:27,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 08:04:27,895 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 08:04:27,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 08:04:27,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 08:04:27,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 08:04:27,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 08:04:27,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 08:04:27,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 08:04:27,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 08:04:27,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 08:04:27,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 08:04:27,906 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 08:04:27,943 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 08:04:27,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 08:04:27,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 08:04:27,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 08:04:27,946 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 08:04:27,946 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 08:04:27,946 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 08:04:27,947 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 08:04:27,947 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 08:04:27,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 08:04:27,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 08:04:27,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 08:04:27,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 08:04:27,949 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 08:04:27,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 08:04:27,949 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 08:04:27,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 08:04:27,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 08:04:27,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 08:04:27,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 08:04:27,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 08:04:27,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 08:04:27,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 08:04:27,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 08:04:27,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 08:04:27,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 08:04:27,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 08:04:27,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 08:04:27,952 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 08:04:27,952 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 08:04:28,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 08:04:28,285 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 08:04:28,291 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 08:04:28,298 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 08:04:28,298 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 08:04:28,299 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label50.c [2020-10-13 08:04:28,364 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5065ebd0e/b7ec8c85375d487192552276dedec368/FLAG01381ce11 [2020-10-13 08:04:28,947 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 08:04:28,948 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label50.c [2020-10-13 08:04:28,974 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5065ebd0e/b7ec8c85375d487192552276dedec368/FLAG01381ce11 [2020-10-13 08:04:29,201 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5065ebd0e/b7ec8c85375d487192552276dedec368 [2020-10-13 08:04:29,212 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 08:04:29,214 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 08:04:29,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 08:04:29,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 08:04:29,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 08:04:29,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:04:29" (1/1) ... [2020-10-13 08:04:29,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6afcb89a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:04:29, skipping insertion in model container [2020-10-13 08:04:29,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:04:29" (1/1) ... [2020-10-13 08:04:29,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 08:04:29,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 08:04:29,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:04:29,888 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 08:04:29,991 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:04:30,016 INFO L208 MainTranslator]: Completed translation [2020-10-13 08:04:30,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:04:30 WrapperNode [2020-10-13 08:04:30,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 08:04:30,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 08:04:30,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 08:04:30,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 08:04:30,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:04:30" (1/1) ... [2020-10-13 08:04:30,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:04:30" (1/1) ... [2020-10-13 08:04:30,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:04:30" (1/1) ... [2020-10-13 08:04:30,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:04:30" (1/1) ... [2020-10-13 08:04:30,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:04:30" (1/1) ... [2020-10-13 08:04:30,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:04:30" (1/1) ... [2020-10-13 08:04:30,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:04:30" (1/1) ... [2020-10-13 08:04:30,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 08:04:30,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 08:04:30,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 08:04:30,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 08:04:30,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:04:30" (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 08:04:30,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 08:04:30,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 08:04:30,237 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 08:04:30,237 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 08:04:30,237 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 08:04:30,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 08:04:30,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 08:04:30,239 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 08:04:30,239 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 08:04:30,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 08:04:30,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 08:04:31,499 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 08:04:31,500 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 08:04:31,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:04:31 BoogieIcfgContainer [2020-10-13 08:04:31,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 08:04:31,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 08:04:31,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 08:04:31,511 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 08:04:31,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:04:29" (1/3) ... [2020-10-13 08:04:31,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f59d6b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:04:31, skipping insertion in model container [2020-10-13 08:04:31,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:04:30" (2/3) ... [2020-10-13 08:04:31,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f59d6b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:04:31, skipping insertion in model container [2020-10-13 08:04:31,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:04:31" (3/3) ... [2020-10-13 08:04:31,515 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label50.c [2020-10-13 08:04:31,526 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 08:04:31,534 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 08:04:31,548 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 08:04:31,575 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 08:04:31,575 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 08:04:31,575 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 08:04:31,575 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 08:04:31,576 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 08:04:31,576 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 08:04:31,576 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 08:04:31,576 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 08:04:31,600 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-10-13 08:04:31,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-13 08:04:31,607 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:04:31,608 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:04:31,608 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:04:31,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:04:31,613 INFO L82 PathProgramCache]: Analyzing trace with hash 397772918, now seen corresponding path program 1 times [2020-10-13 08:04:31,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:04:31,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1854688655] [2020-10-13 08:04:31,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:04:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:31,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:32,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:32,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 08:04:32,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:04:32,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 333 [2020-10-13 08:04:32,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:32,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:04:32,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:04:32,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 08:04:32,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 08:04:32,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:04:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:32,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:32,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:32,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:04:32,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:04:32,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:04:32,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:32,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:04:32,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:04:32,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:04:32,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:04:32,205 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 08:04:32,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1854688655] [2020-10-13 08:04:32,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 08:04:32,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 08:04:32,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217804594] [2020-10-13 08:04:32,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 08:04:32,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:04:32,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 08:04:32,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 08:04:32,234 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 4 states. [2020-10-13 08:04:33,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:04:33,820 INFO L93 Difference]: Finished difference Result 581 states and 1007 transitions. [2020-10-13 08:04:33,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:04:33,823 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-13 08:04:33,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:04:33,840 INFO L225 Difference]: With dead ends: 581 [2020-10-13 08:04:33,840 INFO L226 Difference]: Without dead ends: 302 [2020-10-13 08:04:33,848 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:04:33,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-10-13 08:04:33,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 296. [2020-10-13 08:04:33,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-10-13 08:04:33,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 448 transitions. [2020-10-13 08:04:33,957 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 448 transitions. Word has length 15 [2020-10-13 08:04:33,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:04:33,958 INFO L479 AbstractCegarLoop]: Abstraction has 296 states and 448 transitions. [2020-10-13 08:04:33,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 08:04:33,958 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 448 transitions. [2020-10-13 08:04:33,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-13 08:04:33,963 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:04:33,963 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:04:33,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 08:04:33,964 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:04:33,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:04:33,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1068134291, now seen corresponding path program 1 times [2020-10-13 08:04:33,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:04:33,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490826839] [2020-10-13 08:04:33,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:04:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:34,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:34,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:34,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:35,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:35,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-13 08:04:35,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:04:35,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1210 [2020-10-13 08:04:35,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:35,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:04:35,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-13 08:04:35,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 08:04:35,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 08:04:35,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:04:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:35,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:35,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:35,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:04:35,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:04:35,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 08:04:35,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:35,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:04:35,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:04:35,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:04:35,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-13 08:04:35,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:04:35,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:35,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:35,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:35,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:04:35,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:04:35,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-13 08:04:35,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:35,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:04:35,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:04:35,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 08:04:35,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:04:35,648 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:04:35,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [490826839] [2020-10-13 08:04:35,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:04:35,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:04:35,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805931573] [2020-10-13 08:04:35,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:04:35,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:04:35,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:04:35,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:04:35,661 INFO L87 Difference]: Start difference. First operand 296 states and 448 transitions. Second operand 5 states. [2020-10-13 08:04:36,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:04:36,663 INFO L93 Difference]: Finished difference Result 601 states and 914 transitions. [2020-10-13 08:04:36,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:04:36,664 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 88 [2020-10-13 08:04:36,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:04:36,670 INFO L225 Difference]: With dead ends: 601 [2020-10-13 08:04:36,671 INFO L226 Difference]: Without dead ends: 302 [2020-10-13 08:04:36,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:04:36,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-10-13 08:04:36,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 296. [2020-10-13 08:04:36,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-10-13 08:04:36,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 446 transitions. [2020-10-13 08:04:36,719 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 446 transitions. Word has length 88 [2020-10-13 08:04:36,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:04:36,721 INFO L479 AbstractCegarLoop]: Abstraction has 296 states and 446 transitions. [2020-10-13 08:04:36,721 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:04:36,721 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 446 transitions. [2020-10-13 08:04:36,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-13 08:04:36,726 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:04:36,726 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:04:36,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 08:04:36,727 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:04:36,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:04:36,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1363459929, now seen corresponding path program 1 times [2020-10-13 08:04:36,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:04:36,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [80538530] [2020-10-13 08:04:36,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:04:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:36,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:37,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:37,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-13 08:04:37,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:04:37,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-13 08:04:37,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:37,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:04:37,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 08:04:37,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 08:04:37,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:04:37,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:04:37,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:37,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:37,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:37,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:04:37,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:04:37,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:04:37,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:37,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:04:37,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:04:37,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:04:37,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:04:37,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:04:37,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:37,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:37,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:37,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:04:37,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:04:37,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-13 08:04:37,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:04:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:04:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 08:04:37,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:04:37,242 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:04:37,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [80538530] [2020-10-13 08:04:37,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:04:37,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:04:37,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347121241] [2020-10-13 08:04:37,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:04:37,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:04:37,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:04:37,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:04:37,246 INFO L87 Difference]: Start difference. First operand 296 states and 446 transitions. Second operand 5 states. [2020-10-13 08:04:38,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:04:38,603 INFO L93 Difference]: Finished difference Result 886 states and 1363 transitions. [2020-10-13 08:04:38,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:04:38,605 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 94 [2020-10-13 08:04:38,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:04:38,613 INFO L225 Difference]: With dead ends: 886 [2020-10-13 08:04:38,614 INFO L226 Difference]: Without dead ends: 596 [2020-10-13 08:04:38,615 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 08:04:38,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2020-10-13 08:04:38,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 586. [2020-10-13 08:04:38,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 586 states. [2020-10-13 08:04:38,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 813 transitions. [2020-10-13 08:04:38,656 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 813 transitions. Word has length 94 [2020-10-13 08:04:38,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:04:38,657 INFO L479 AbstractCegarLoop]: Abstraction has 586 states and 813 transitions. [2020-10-13 08:04:38,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:04:38,657 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 813 transitions. [2020-10-13 08:04:38,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-13 08:04:38,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:04:38,660 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:04:38,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 08:04:38,660 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:04:38,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:04:38,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1642796538, now seen corresponding path program 1 times [2020-10-13 08:04:38,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:04:38,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1071289627] [2020-10-13 08:04:38,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:04:38,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:38,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:38,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:38,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:39,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:39,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-13 08:04:39,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:04:39,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 807 [2020-10-13 08:04:39,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:39,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:04:39,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-13 08:04:39,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 08:04:39,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:04:39,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:04:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:39,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:39,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:39,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:04:39,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:04:39,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:04:39,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:39,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:04:39,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:04:39,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:04:39,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:04:39,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:04:39,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:39,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:39,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:39,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-13 08:04:39,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:04:39,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 08:04:39,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:39,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:04:39,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:04:39,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 08:04:39,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:04:39,738 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:04:39,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1071289627] [2020-10-13 08:04:39,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:04:39,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:04:39,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791496451] [2020-10-13 08:04:39,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:04:39,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:04:39,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:04:39,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:04:39,741 INFO L87 Difference]: Start difference. First operand 586 states and 813 transitions. Second operand 5 states. [2020-10-13 08:04:41,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:04:41,018 INFO L93 Difference]: Finished difference Result 1470 states and 2130 transitions. [2020-10-13 08:04:41,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:04:41,019 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 105 [2020-10-13 08:04:41,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:04:41,026 INFO L225 Difference]: With dead ends: 1470 [2020-10-13 08:04:41,027 INFO L226 Difference]: Without dead ends: 890 [2020-10-13 08:04:41,029 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 08:04:41,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2020-10-13 08:04:41,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 878. [2020-10-13 08:04:41,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2020-10-13 08:04:41,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1158 transitions. [2020-10-13 08:04:41,109 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1158 transitions. Word has length 105 [2020-10-13 08:04:41,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:04:41,111 INFO L479 AbstractCegarLoop]: Abstraction has 878 states and 1158 transitions. [2020-10-13 08:04:41,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:04:41,112 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1158 transitions. [2020-10-13 08:04:41,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-13 08:04:41,132 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:04:41,132 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:04:41,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 08:04:41,133 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:04:41,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:04:41,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1927403126, now seen corresponding path program 1 times [2020-10-13 08:04:41,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:04:41,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [552568941] [2020-10-13 08:04:41,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:04:41,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:41,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:41,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:41,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:41,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 08:04:41,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:04:41,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 644 [2020-10-13 08:04:41,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:41,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:04:41,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-13 08:04:41,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 08:04:41,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:04:41,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:04:41,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:41,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:41,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:41,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:04:41,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:04:41,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:04:41,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:41,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:04:41,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:04:41,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:04:41,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:04:41,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:04:41,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:41,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:42,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:42,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 08:04:42,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:04:42,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-13 08:04:42,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:42,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:04:42,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:04:42,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 08:04:42,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:04:42,082 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:04:42,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [552568941] [2020-10-13 08:04:42,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:04:42,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:04:42,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616293633] [2020-10-13 08:04:42,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:04:42,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:04:42,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:04:42,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:04:42,085 INFO L87 Difference]: Start difference. First operand 878 states and 1158 transitions. Second operand 5 states. [2020-10-13 08:04:43,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:04:43,362 INFO L93 Difference]: Finished difference Result 2052 states and 2764 transitions. [2020-10-13 08:04:43,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:04:43,363 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 113 [2020-10-13 08:04:43,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:04:43,368 INFO L225 Difference]: With dead ends: 2052 [2020-10-13 08:04:43,369 INFO L226 Difference]: Without dead ends: 890 [2020-10-13 08:04:43,372 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 08:04:43,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2020-10-13 08:04:43,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 878. [2020-10-13 08:04:43,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2020-10-13 08:04:43,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1144 transitions. [2020-10-13 08:04:43,402 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1144 transitions. Word has length 113 [2020-10-13 08:04:43,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:04:43,403 INFO L479 AbstractCegarLoop]: Abstraction has 878 states and 1144 transitions. [2020-10-13 08:04:43,403 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:04:43,403 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1144 transitions. [2020-10-13 08:04:43,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-13 08:04:43,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:04:43,405 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:04:43,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 08:04:43,406 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:04:43,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:04:43,406 INFO L82 PathProgramCache]: Analyzing trace with hash -2015983674, now seen corresponding path program 1 times [2020-10-13 08:04:43,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:04:43,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [432778778] [2020-10-13 08:04:43,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:04:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:43,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:43,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:44,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:44,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 08:04:44,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:04:44,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 645 [2020-10-13 08:04:44,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:44,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:04:44,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 122 [2020-10-13 08:04:44,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 08:04:44,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:04:44,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:04:44,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:44,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:44,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:44,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:04:44,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:04:44,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:04:44,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:44,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:04:44,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:04:44,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:04:44,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:04:44,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:04:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:44,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:44,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:44,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:04:44,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:04:44,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-13 08:04:44,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:44,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:04:44,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:04:44,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-13 08:04:44,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:04:44,401 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:04:44,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [432778778] [2020-10-13 08:04:44,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:04:44,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:04:44,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606654341] [2020-10-13 08:04:44,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:04:44,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:04:44,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:04:44,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:04:44,405 INFO L87 Difference]: Start difference. First operand 878 states and 1144 transitions. Second operand 5 states. [2020-10-13 08:04:45,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:04:45,518 INFO L93 Difference]: Finished difference Result 2044 states and 2763 transitions. [2020-10-13 08:04:45,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:04:45,526 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 127 [2020-10-13 08:04:45,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:04:45,532 INFO L225 Difference]: With dead ends: 2044 [2020-10-13 08:04:45,533 INFO L226 Difference]: Without dead ends: 1172 [2020-10-13 08:04:45,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:04:45,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2020-10-13 08:04:45,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 1023. [2020-10-13 08:04:45,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1023 states. [2020-10-13 08:04:45,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1315 transitions. [2020-10-13 08:04:45,570 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1315 transitions. Word has length 127 [2020-10-13 08:04:45,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:04:45,571 INFO L479 AbstractCegarLoop]: Abstraction has 1023 states and 1315 transitions. [2020-10-13 08:04:45,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:04:45,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1315 transitions. [2020-10-13 08:04:45,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-10-13 08:04:45,575 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:04:45,576 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:04:45,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 08:04:45,576 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:04:45,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:04:45,577 INFO L82 PathProgramCache]: Analyzing trace with hash 849402893, now seen corresponding path program 1 times [2020-10-13 08:04:45,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:04:45,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2127606995] [2020-10-13 08:04:45,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:04:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:45,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:45,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:46,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:46,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-13 08:04:46,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:04:46,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 981 [2020-10-13 08:04:46,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:46,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:04:46,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 201 [2020-10-13 08:04:46,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 08:04:46,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:04:46,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:04:46,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:46,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:46,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:46,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:04:46,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:04:46,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:04:46,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:46,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:04:46,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:04:46,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:04:46,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:04:46,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:04:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:46,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:46,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:46,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 08:04:46,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:04:46,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:04:46,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:46,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:04:46,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:04:46,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:04:46,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:04:46,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 08:04:46,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:46,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:46,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:46,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:04:46,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:04:46,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-13 08:04:46,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:46,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:04:46,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:04:46,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-13 08:04:46,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:04:46,874 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-13 08:04:46,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2127606995] [2020-10-13 08:04:46,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:04:46,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:04:46,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033992735] [2020-10-13 08:04:46,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:04:46,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:04:46,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:04:46,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:04:46,877 INFO L87 Difference]: Start difference. First operand 1023 states and 1315 transitions. Second operand 5 states. [2020-10-13 08:04:48,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:04:48,022 INFO L93 Difference]: Finished difference Result 2479 states and 3201 transitions. [2020-10-13 08:04:48,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:04:48,027 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 204 [2020-10-13 08:04:48,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:04:48,036 INFO L225 Difference]: With dead ends: 2479 [2020-10-13 08:04:48,036 INFO L226 Difference]: Without dead ends: 1027 [2020-10-13 08:04:48,040 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 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 08:04:48,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2020-10-13 08:04:48,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1023. [2020-10-13 08:04:48,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1023 states. [2020-10-13 08:04:48,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1303 transitions. [2020-10-13 08:04:48,078 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1303 transitions. Word has length 204 [2020-10-13 08:04:48,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:04:48,078 INFO L479 AbstractCegarLoop]: Abstraction has 1023 states and 1303 transitions. [2020-10-13 08:04:48,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:04:48,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1303 transitions. [2020-10-13 08:04:48,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-10-13 08:04:48,083 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:04:48,083 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:04:48,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 08:04:48,083 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:04:48,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:04:48,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1728810222, now seen corresponding path program 1 times [2020-10-13 08:04:48,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:04:48,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [574064806] [2020-10-13 08:04:48,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:04:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:48,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:48,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:48,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:48,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-10-13 08:04:48,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:04:48,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 660 [2020-10-13 08:04:48,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:48,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:04:48,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 218 [2020-10-13 08:04:48,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 08:04:48,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:04:48,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:04:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:48,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:48,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:48,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:04:48,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:04:48,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:04:48,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:48,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:04:48,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:04:48,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:04:48,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:04:48,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:04:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:48,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:48,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:48,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 08:04:48,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:04:48,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:04:48,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:48,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:04:48,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:04:48,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:04:48,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:04:48,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 08:04:48,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:48,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:49,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:49,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 08:04:49,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:04:49,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-13 08:04:49,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:49,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:04:49,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:04:49,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-13 08:04:49,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:04:49,194 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-13 08:04:49,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [574064806] [2020-10-13 08:04:49,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:04:49,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:04:49,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585737695] [2020-10-13 08:04:49,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:04:49,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:04:49,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:04:49,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:04:49,197 INFO L87 Difference]: Start difference. First operand 1023 states and 1303 transitions. Second operand 5 states. [2020-10-13 08:04:50,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:04:50,501 INFO L93 Difference]: Finished difference Result 2479 states and 3199 transitions. [2020-10-13 08:04:50,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:04:50,509 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 221 [2020-10-13 08:04:50,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:04:50,516 INFO L225 Difference]: With dead ends: 2479 [2020-10-13 08:04:50,517 INFO L226 Difference]: Without dead ends: 1462 [2020-10-13 08:04:50,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 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 08:04:50,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2020-10-13 08:04:50,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1458. [2020-10-13 08:04:50,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1458 states. [2020-10-13 08:04:50,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 1804 transitions. [2020-10-13 08:04:50,566 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 1804 transitions. Word has length 221 [2020-10-13 08:04:50,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:04:50,566 INFO L479 AbstractCegarLoop]: Abstraction has 1458 states and 1804 transitions. [2020-10-13 08:04:50,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:04:50,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 1804 transitions. [2020-10-13 08:04:50,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-10-13 08:04:50,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:04:50,571 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:04:50,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 08:04:50,571 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:04:50,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:04:50,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1714990914, now seen corresponding path program 1 times [2020-10-13 08:04:50,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:04:50,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1526177210] [2020-10-13 08:04:50,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:04:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:50,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:50,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:51,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:51,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-10-13 08:04:51,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:04:51,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1090 [2020-10-13 08:04:51,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:51,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:04:51,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-13 08:04:51,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-13 08:04:51,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:04:51,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:04:51,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:51,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:51,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:51,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:04:51,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:04:51,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:04:51,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:51,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:04:51,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:04:51,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:04:51,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:04:51,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:04:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:51,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:51,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:51,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 08:04:51,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:04:51,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 08:04:51,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:51,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:04:51,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:04:51,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 08:04:51,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:04:51,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 08:04:51,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:04:51,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:52,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:04:52,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:04:52,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-13 08:04:52,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:04:52,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 592 [2020-10-13 08:04:52,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:04:52,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 08:04:52,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:04:52,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-13 08:04:52,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:04:53,471 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 49 [2020-10-13 08:04:53,641 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2020-10-13 08:04:53,827 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 58 [2020-10-13 08:04:54,016 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2020-10-13 08:04:54,583 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 83 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 08:04:54,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1526177210] [2020-10-13 08:04:54,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:04:54,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 08:04:54,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766914194] [2020-10-13 08:04:54,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 08:04:54,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:04:54,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 08:04:54,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:04:54,585 INFO L87 Difference]: Start difference. First operand 1458 states and 1804 transitions. Second operand 12 states. [2020-10-13 08:04:55,172 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 58 [2020-10-13 08:04:55,366 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2020-10-13 08:04:55,812 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2020-10-13 08:04:56,120 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2020-10-13 08:04:56,570 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2020-10-13 08:04:56,854 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2020-10-13 08:04:57,316 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2020-10-13 08:04:57,667 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 89 [2020-10-13 08:04:57,920 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2020-10-13 08:04:58,506 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2020-10-13 08:04:58,786 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 59 [2020-10-13 08:04:59,206 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2020-10-13 08:04:59,704 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 68 [2020-10-13 08:04:59,924 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 44 [2020-10-13 08:05:00,207 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 74 [2020-10-13 08:05:00,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:05:00,312 INFO L93 Difference]: Finished difference Result 3083 states and 3908 transitions. [2020-10-13 08:05:00,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-13 08:05:00,313 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 227 [2020-10-13 08:05:00,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:05:00,319 INFO L225 Difference]: With dead ends: 3083 [2020-10-13 08:05:00,320 INFO L226 Difference]: Without dead ends: 1626 [2020-10-13 08:05:00,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=249, Invalid=681, Unknown=0, NotChecked=0, Total=930 [2020-10-13 08:05:00,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2020-10-13 08:05:00,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 1614. [2020-10-13 08:05:00,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1614 states. [2020-10-13 08:05:00,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 1995 transitions. [2020-10-13 08:05:00,361 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 1995 transitions. Word has length 227 [2020-10-13 08:05:00,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:05:00,362 INFO L479 AbstractCegarLoop]: Abstraction has 1614 states and 1995 transitions. [2020-10-13 08:05:00,362 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 08:05:00,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 1995 transitions. [2020-10-13 08:05:00,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-13 08:05:00,366 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:05:00,367 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:05:00,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 08:05:00,367 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:05:00,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:05:00,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1113807393, now seen corresponding path program 1 times [2020-10-13 08:05:00,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:05:00,368 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1502034669] [2020-10-13 08:05:00,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:05:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:00,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:00,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:00,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:04,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:04,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-10-13 08:05:04,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:05:04,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4230 [2020-10-13 08:05:04,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:04,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:05:04,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:05:04,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 08:05:04,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:05:04,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:05:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:04,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:04,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:04,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:05:04,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:05:04,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 08:05:04,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:04,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:05:04,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:05:04,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:05:04,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:05:04,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:05:04,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:04,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:04,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:04,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 08:05:04,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:05:04,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-13 08:05:04,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:04,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:05:04,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:05:04,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 08:05:04,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:05:04,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-13 08:05:04,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:04,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:04,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:04,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-13 08:05:04,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:05:04,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 08:05:04,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:04,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:05:04,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-13 08:05:04,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:05:04,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:05:05,107 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 16 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 08:05:05,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1502034669] [2020-10-13 08:05:05,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:05:05,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:05:05,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716125187] [2020-10-13 08:05:05,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:05:05,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:05:05,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:05:05,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:05:05,111 INFO L87 Difference]: Start difference. First operand 1614 states and 1995 transitions. Second operand 7 states. [2020-10-13 08:05:08,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:05:08,687 INFO L93 Difference]: Finished difference Result 3379 states and 4199 transitions. [2020-10-13 08:05:08,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 08:05:08,689 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 234 [2020-10-13 08:05:08,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:05:08,696 INFO L225 Difference]: With dead ends: 3379 [2020-10-13 08:05:08,696 INFO L226 Difference]: Without dead ends: 1771 [2020-10-13 08:05:08,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-13 08:05:08,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2020-10-13 08:05:08,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1620. [2020-10-13 08:05:08,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1620 states. [2020-10-13 08:05:08,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 2006 transitions. [2020-10-13 08:05:08,748 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 2006 transitions. Word has length 234 [2020-10-13 08:05:08,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:05:08,749 INFO L479 AbstractCegarLoop]: Abstraction has 1620 states and 2006 transitions. [2020-10-13 08:05:08,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:05:08,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 2006 transitions. [2020-10-13 08:05:08,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-10-13 08:05:08,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:05:08,755 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:05:08,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 08:05:08,756 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:05:08,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:05:08,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1757607963, now seen corresponding path program 1 times [2020-10-13 08:05:08,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:05:08,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [951519052] [2020-10-13 08:05:08,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:05:08,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:08,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:08,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:10,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:12,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:12,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-10-13 08:05:12,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:05:12,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3697 [2020-10-13 08:05:12,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:12,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:05:12,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:05:12,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-13 08:05:12,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:05:12,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:05:12,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:12,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:12,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:12,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:05:12,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:05:12,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:05:12,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:12,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:05:12,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:05:12,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:05:12,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:05:12,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:05:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:12,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:12,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:12,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-13 08:05:12,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:05:12,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-13 08:05:12,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:12,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:05:12,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:05:12,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-13 08:05:12,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:05:12,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-13 08:05:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:12,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:12,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:12,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-13 08:05:12,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:05:12,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-13 08:05:12,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:12,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:05:12,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-13 08:05:12,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:05:12,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:05:12,971 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 16 proven. 90 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 08:05:12,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [951519052] [2020-10-13 08:05:12,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:05:12,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:05:12,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048213683] [2020-10-13 08:05:12,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:05:12,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:05:12,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:05:12,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:05:12,973 INFO L87 Difference]: Start difference. First operand 1620 states and 2006 transitions. Second operand 8 states. [2020-10-13 08:05:14,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:05:14,446 INFO L93 Difference]: Finished difference Result 3574 states and 4560 transitions. [2020-10-13 08:05:14,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:05:14,447 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 252 [2020-10-13 08:05:14,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:05:14,456 INFO L225 Difference]: With dead ends: 3574 [2020-10-13 08:05:14,456 INFO L226 Difference]: Without dead ends: 2103 [2020-10-13 08:05:14,461 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:05:14,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2103 states. [2020-10-13 08:05:14,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2103 to 2065. [2020-10-13 08:05:14,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2065 states. [2020-10-13 08:05:14,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2065 states to 2065 states and 2420 transitions. [2020-10-13 08:05:14,514 INFO L78 Accepts]: Start accepts. Automaton has 2065 states and 2420 transitions. Word has length 252 [2020-10-13 08:05:14,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:05:14,515 INFO L479 AbstractCegarLoop]: Abstraction has 2065 states and 2420 transitions. [2020-10-13 08:05:14,515 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:05:14,515 INFO L276 IsEmpty]: Start isEmpty. Operand 2065 states and 2420 transitions. [2020-10-13 08:05:14,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2020-10-13 08:05:14,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:05:14,523 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:14,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 08:05:14,523 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:05:14,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:05:14,524 INFO L82 PathProgramCache]: Analyzing trace with hash 934458718, now seen corresponding path program 1 times [2020-10-13 08:05:14,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:05:14,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [292133246] [2020-10-13 08:05:14,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:05:14,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:14,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:14,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:14,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:15,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:17,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:17,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:17,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 327 [2020-10-13 08:05:17,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:05:17,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2813 [2020-10-13 08:05:17,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:17,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:05:17,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 08:05:17,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 08:05:17,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:05:17,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:05:17,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:17,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:17,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:17,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:05:17,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:05:17,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:05:17,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:17,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:05:17,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:05:17,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:05:17,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:05:17,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:05:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:17,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:17,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:17,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:05:17,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:05:17,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 08:05:17,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:17,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:05:17,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:05:17,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 08:05:17,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:05:17,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 08:05:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:17,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:17,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:17,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:17,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 08:05:17,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:05:17,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-13 08:05:17,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:05:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:05:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 08:05:17,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:05:17,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-13 08:05:17,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:17,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:17,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:17,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-13 08:05:17,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:05:17,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 08:05:17,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:17,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:05:17,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-13 08:05:17,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:05:17,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:05:18,008 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 102 proven. 76 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-10-13 08:05:18,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [292133246] [2020-10-13 08:05:18,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:05:18,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 08:05:18,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993425226] [2020-10-13 08:05:18,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 08:05:18,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:05:18,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 08:05:18,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:05:18,010 INFO L87 Difference]: Start difference. First operand 2065 states and 2420 transitions. Second operand 6 states. [2020-10-13 08:05:19,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:05:19,409 INFO L93 Difference]: Finished difference Result 3883 states and 4577 transitions. [2020-10-13 08:05:19,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:05:19,410 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 313 [2020-10-13 08:05:19,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:05:19,418 INFO L225 Difference]: With dead ends: 3883 [2020-10-13 08:05:19,419 INFO L226 Difference]: Without dead ends: 1944 [2020-10-13 08:05:19,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-13 08:05:19,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1944 states. [2020-10-13 08:05:19,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1944 to 1920. [2020-10-13 08:05:19,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1920 states. [2020-10-13 08:05:19,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2241 transitions. [2020-10-13 08:05:19,467 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2241 transitions. Word has length 313 [2020-10-13 08:05:19,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:05:19,467 INFO L479 AbstractCegarLoop]: Abstraction has 1920 states and 2241 transitions. [2020-10-13 08:05:19,468 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 08:05:19,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2241 transitions. [2020-10-13 08:05:19,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2020-10-13 08:05:19,478 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:05:19,478 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:19,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 08:05:19,479 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:05:19,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:05:19,479 INFO L82 PathProgramCache]: Analyzing trace with hash 960569046, now seen corresponding path program 1 times [2020-10-13 08:05:19,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:05:19,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1566332048] [2020-10-13 08:05:19,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:05:19,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:19,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:19,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:20,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:23,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:23,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 363 [2020-10-13 08:05:23,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:05:23,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3795 [2020-10-13 08:05:23,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:23,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:05:23,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-13 08:05:23,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 08:05:23,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:05:23,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:05:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:23,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:23,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:23,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:05:23,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:05:23,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 08:05:23,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:23,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:05:23,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:05:23,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:05:23,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:05:23,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:05:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:23,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:23,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:23,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-13 08:05:23,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:05:23,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 08:05:23,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:23,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:05:23,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:05:23,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-13 08:05:23,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:05:23,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-13 08:05:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:23,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:23,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:23,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 08:05:23,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:05:23,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-13 08:05:23,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:23,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:05:23,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:05:23,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 08:05:23,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:05:23,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-13 08:05:23,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:23,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:23,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:23,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-13 08:05:23,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:05:23,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-13 08:05:23,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:23,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:05:23,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-13 08:05:23,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:05:23,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:05:23,933 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 102 proven. 76 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-13 08:05:23,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1566332048] [2020-10-13 08:05:23,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:05:23,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:05:23,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997479030] [2020-10-13 08:05:23,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:05:23,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:05:23,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:05:23,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:05:23,936 INFO L87 Difference]: Start difference. First operand 1920 states and 2241 transitions. Second operand 7 states. [2020-10-13 08:05:25,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:05:25,613 INFO L93 Difference]: Finished difference Result 4001 states and 4726 transitions. [2020-10-13 08:05:25,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:05:25,614 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 349 [2020-10-13 08:05:25,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:05:25,622 INFO L225 Difference]: With dead ends: 4001 [2020-10-13 08:05:25,622 INFO L226 Difference]: Without dead ends: 2230 [2020-10-13 08:05:25,626 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-13 08:05:25,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2230 states. [2020-10-13 08:05:25,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2230 to 2226. [2020-10-13 08:05:25,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2226 states. [2020-10-13 08:05:25,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2226 states to 2226 states and 2583 transitions. [2020-10-13 08:05:25,673 INFO L78 Accepts]: Start accepts. Automaton has 2226 states and 2583 transitions. Word has length 349 [2020-10-13 08:05:25,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:05:25,674 INFO L479 AbstractCegarLoop]: Abstraction has 2226 states and 2583 transitions. [2020-10-13 08:05:25,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:05:25,674 INFO L276 IsEmpty]: Start isEmpty. Operand 2226 states and 2583 transitions. [2020-10-13 08:05:25,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2020-10-13 08:05:25,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:05:25,683 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:05:25,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 08:05:25,684 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:05:25,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:05:25,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1121587701, now seen corresponding path program 1 times [2020-10-13 08:05:25,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:05:25,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1167850558] [2020-10-13 08:05:25,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:05:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:25,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:25,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:26,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:26,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:27,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:27,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 374 [2020-10-13 08:05:27,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:05:27,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1831 [2020-10-13 08:05:27,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:27,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:05:27,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 215 [2020-10-13 08:05:27,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-13 08:05:27,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:05:27,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:05:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:27,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:27,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:27,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:05:27,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:05:27,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:05:27,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:27,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:05:27,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:05:27,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:05:27,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:05:27,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:05:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:27,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:27,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:27,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 08:05:27,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:05:27,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 08:05:27,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:27,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:05:27,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:05:27,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:05:27,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:05:27,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 08:05:27,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:27,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:27,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:27,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-13 08:05:27,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:05:27,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 08:05:27,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:27,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:05:27,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:05:27,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-13 08:05:27,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:05:27,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-13 08:05:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:27,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:27,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:28,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:28,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-13 08:05:28,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:05:28,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 497 [2020-10-13 08:05:28,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:28,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:05:28,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:05:28,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-13 08:05:28,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:05:28,550 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 226 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-13 08:05:28,550 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1167850558] [2020-10-13 08:05:28,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:05:28,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:05:28,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865728224] [2020-10-13 08:05:28,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:05:28,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:05:28,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:05:28,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:05:28,553 INFO L87 Difference]: Start difference. First operand 2226 states and 2583 transitions. Second operand 8 states. [2020-10-13 08:05:30,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:05:30,396 INFO L93 Difference]: Finished difference Result 4460 states and 5255 transitions. [2020-10-13 08:05:30,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 08:05:30,397 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 360 [2020-10-13 08:05:30,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:05:30,405 INFO L225 Difference]: With dead ends: 4460 [2020-10-13 08:05:30,406 INFO L226 Difference]: Without dead ends: 2383 [2020-10-13 08:05:30,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:05:30,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2020-10-13 08:05:30,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 2373. [2020-10-13 08:05:30,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2373 states. [2020-10-13 08:05:30,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2373 states to 2373 states and 2742 transitions. [2020-10-13 08:05:30,461 INFO L78 Accepts]: Start accepts. Automaton has 2373 states and 2742 transitions. Word has length 360 [2020-10-13 08:05:30,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:05:30,462 INFO L479 AbstractCegarLoop]: Abstraction has 2373 states and 2742 transitions. [2020-10-13 08:05:30,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:05:30,462 INFO L276 IsEmpty]: Start isEmpty. Operand 2373 states and 2742 transitions. [2020-10-13 08:05:30,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2020-10-13 08:05:30,468 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:05:30,468 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:05:30,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 08:05:30,469 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:05:30,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:05:30,469 INFO L82 PathProgramCache]: Analyzing trace with hash -687628411, now seen corresponding path program 1 times [2020-10-13 08:05:30,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:05:30,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [902148523] [2020-10-13 08:05:30,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:05:30,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:30,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:30,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:32,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:32,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 382 [2020-10-13 08:05:32,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:05:32,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1610 [2020-10-13 08:05:32,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:32,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:05:32,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-10-13 08:05:32,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-13 08:05:32,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:05:32,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:05:32,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:32,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:32,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:32,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:05:32,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:05:32,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:05:32,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:32,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:05:32,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:05:32,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:05:32,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:05:32,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:05:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:32,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:32,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:32,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-13 08:05:32,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:05:32,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 08:05:32,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:32,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:05:32,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:05:32,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:05:32,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:05:32,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-13 08:05:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:32,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:32,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:32,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 08:05:32,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:05:32,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 08:05:32,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:32,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:05:32,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:05:32,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 08:05:32,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:05:32,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-13 08:05:32,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:32,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:32,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:32,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:32,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-13 08:05:32,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:05:32,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-10-13 08:05:32,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:32,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:05:32,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:05:32,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-13 08:05:32,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:05:32,915 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 234 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-13 08:05:32,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [902148523] [2020-10-13 08:05:32,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:05:32,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:05:32,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725403636] [2020-10-13 08:05:32,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:05:32,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:05:32,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:05:32,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:05:32,917 INFO L87 Difference]: Start difference. First operand 2373 states and 2742 transitions. Second operand 8 states. [2020-10-13 08:05:34,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:05:34,983 INFO L93 Difference]: Finished difference Result 4750 states and 5575 transitions. [2020-10-13 08:05:34,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:05:34,984 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 368 [2020-10-13 08:05:34,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:05:34,993 INFO L225 Difference]: With dead ends: 4750 [2020-10-13 08:05:34,994 INFO L226 Difference]: Without dead ends: 2526 [2020-10-13 08:05:34,998 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:05:35,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2526 states. [2020-10-13 08:05:35,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2526 to 2518. [2020-10-13 08:05:35,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2518 states. [2020-10-13 08:05:35,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2518 states to 2518 states and 2903 transitions. [2020-10-13 08:05:35,050 INFO L78 Accepts]: Start accepts. Automaton has 2518 states and 2903 transitions. Word has length 368 [2020-10-13 08:05:35,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:05:35,050 INFO L479 AbstractCegarLoop]: Abstraction has 2518 states and 2903 transitions. [2020-10-13 08:05:35,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:05:35,051 INFO L276 IsEmpty]: Start isEmpty. Operand 2518 states and 2903 transitions. [2020-10-13 08:05:35,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2020-10-13 08:05:35,057 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:05:35,058 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:05:35,058 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 08:05:35,058 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:05:35,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:05:35,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1033916999, now seen corresponding path program 1 times [2020-10-13 08:05:35,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:05:35,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1956289482] [2020-10-13 08:05:35,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:05:35,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:35,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:35,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:36,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:36,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 392 [2020-10-13 08:05:36,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:05:36,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1729 [2020-10-13 08:05:36,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:36,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:05:36,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 233 [2020-10-13 08:05:36,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-13 08:05:36,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:05:36,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:05:36,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:36,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:36,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:36,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:05:36,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:05:36,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:05:36,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:36,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:05:36,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:05:36,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:05:36,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:05:37,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:05:37,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:37,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:37,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:37,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-13 08:05:37,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:05:37,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 08:05:37,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:37,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:05:37,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:05:37,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:05:37,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:05:37,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-13 08:05:37,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:37,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:37,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:37,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-13 08:05:37,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:05:37,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-13 08:05:37,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:37,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:05:37,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:05:37,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 08:05:37,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:05:37,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-13 08:05:37,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:05:37,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:37,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:05:37,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:05:37,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-13 08:05:37,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:05:37,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 445 [2020-10-13 08:05:37,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:05:37,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:05:37,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:05:37,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-13 08:05:37,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:05:37,834 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 244 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-13 08:05:37,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1956289482] [2020-10-13 08:05:37,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:05:37,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:05:37,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803920600] [2020-10-13 08:05:37,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:05:37,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:05:37,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:05:37,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:05:37,837 INFO L87 Difference]: Start difference. First operand 2518 states and 2903 transitions. Second operand 8 states. [2020-10-13 08:05:39,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:05:39,766 INFO L93 Difference]: Finished difference Result 5050 states and 5845 transitions. [2020-10-13 08:05:39,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:05:39,767 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 378 [2020-10-13 08:05:39,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:05:39,777 INFO L225 Difference]: With dead ends: 5050 [2020-10-13 08:05:39,777 INFO L226 Difference]: Without dead ends: 2681 [2020-10-13 08:05:39,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:05:39,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2681 states. [2020-10-13 08:05:39,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2681 to 2669. [2020-10-13 08:05:39,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2669 states. [2020-10-13 08:05:39,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 3070 transitions. [2020-10-13 08:05:39,832 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 3070 transitions. Word has length 378 [2020-10-13 08:05:39,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:05:39,833 INFO L479 AbstractCegarLoop]: Abstraction has 2669 states and 3070 transitions. [2020-10-13 08:05:39,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:05:39,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 3070 transitions. [2020-10-13 08:05:39,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2020-10-13 08:05:39,841 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:05:39,841 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:05:39,841 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 08:05:39,841 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:05:39,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:05:39,842 INFO L82 PathProgramCache]: Analyzing trace with hash 631357806, now seen corresponding path program 1 times [2020-10-13 08:05:39,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:05:39,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1326469892] [2020-10-13 08:05:39,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:05:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 08:05:39,909 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 08:05:39,909 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 08:05:39,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 08:05:39,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:05:39 BoogieIcfgContainer [2020-10-13 08:05:39,969 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 08:05:39,971 INFO L168 Benchmark]: Toolchain (without parser) took 70757.00 ms. Allocated memory was 145.2 MB in the beginning and 1.1 GB in the end (delta: 928.0 MB). Free memory was 100.7 MB in the beginning and 881.6 MB in the end (delta: -780.9 MB). Peak memory consumption was 147.1 MB. Max. memory is 7.1 GB. [2020-10-13 08:05:39,971 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 145.2 MB. Free memory was 120.8 MB in the beginning and 120.3 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-13 08:05:39,972 INFO L168 Benchmark]: CACSL2BoogieTranslator took 802.06 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 100.2 MB in the beginning and 169.8 MB in the end (delta: -69.6 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. [2020-10-13 08:05:39,973 INFO L168 Benchmark]: Boogie Preprocessor took 127.00 ms. Allocated memory is still 203.9 MB. Free memory was 169.8 MB in the beginning and 164.7 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-10-13 08:05:39,973 INFO L168 Benchmark]: RCFGBuilder took 1361.49 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 164.7 MB in the beginning and 179.4 MB in the end (delta: -14.7 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. [2020-10-13 08:05:39,974 INFO L168 Benchmark]: TraceAbstraction took 68461.01 ms. Allocated memory was 237.5 MB in the beginning and 1.1 GB in the end (delta: 835.7 MB). Free memory was 179.4 MB in the beginning and 881.6 MB in the end (delta: -702.2 MB). Peak memory consumption was 133.5 MB. Max. memory is 7.1 GB. [2020-10-13 08:05:39,977 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 145.2 MB. Free memory was 120.8 MB in the beginning and 120.3 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 802.06 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 100.2 MB in the beginning and 169.8 MB in the end (delta: -69.6 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.00 ms. Allocated memory is still 203.9 MB. Free memory was 169.8 MB in the beginning and 164.7 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1361.49 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 164.7 MB in the beginning and 179.4 MB in the end (delta: -14.7 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 68461.01 ms. Allocated memory was 237.5 MB in the beginning and 1.1 GB in the end (delta: 835.7 MB). Free memory was 179.4 MB in the beginning and 881.6 MB in the end (delta: -702.2 MB). Peak memory consumption was 133.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 31]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L7] int inputC = 3; [L8] int inputD = 4; [L9] int inputE = 5; [L10] int inputF = 6; [L11] int inputB = 2; [L14] int a1 = 23; [L15] int a19 = 9; [L16] int a10 = 0; [L17] int a12 = 0; [L18] int a4 = 14; [L579] int output = -1; [L582] COND TRUE 1 [L585] int input; [L586] input = __VERIFIER_nondet_int() [L587] COND FALSE !((input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L590] CALL, EXPR calculate_output(input) [L21] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L24] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L27] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L30] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L33] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L36] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L39] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L42] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L45] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L48] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L51] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L54] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L57] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L60] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L63] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L66] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L69] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L72] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L75] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L78] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L81] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L84] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L87] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L90] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L93] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L96] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L99] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L102] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L105] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L108] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L111] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L114] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L117] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L120] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L123] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L126] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L129] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L132] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L135] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L138] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L141] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L144] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L147] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L150] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L153] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L156] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L159] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L162] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L165] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L168] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L171] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L174] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L177] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L180] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L183] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L186] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L189] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L192] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L195] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L198] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==9))) [L201] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L205] COND FALSE !((((a10==4) && ( 218 < a1 && (((input == 4) && (a12==0)) && (a4==14)))) && (a19==9))) [L210] COND FALSE !(((a4==14) && (((a12==0) && ((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 4)) && (a19==9))) && (a10==0)))) [L215] COND FALSE !(((((a4==14) && ((a19==10) && ((a10==1) && (input == 2)))) && (a12==0)) && 218 < a1 )) [L220] COND FALSE !(((a12==0) && ((a19==9) && ((a10==1) && (( 218 < a1 && (input == 3)) && (a4==14)))))) [L225] COND FALSE !(((a19==10) && (((a4==14) && (((((a10==0) && ((38 < a1) && (218 >= a1)) ) || ((a10==0) && 218 < a1 )) || ((a10==1) && a1 <= -13 )) && (input == 5))) && (a12==0)))) [L231] COND FALSE !(((a12==0) && ((a19==9) && (((a4==14) && ((input == 2) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ))) && (a10==3))))) [L236] COND FALSE !(((a12==0) && ((((a4==14) && ((input == 3) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ))) && (a10==2)) && (a19==9)))) [L239] COND FALSE !((((a12==0) && ( ((-13 < a1) && (38 >= a1)) && (((input == 3) && (a19==10)) && (a4==14)))) && (a10==1))) [L244] COND FALSE !((((a19==9) && (((input == 6) && (( 218 < a1 && (a10==0)) || ( a1 <= -13 && (a10==1)))) && (a4==14))) && (a12==0))) [L249] COND FALSE !(( ((38 < a1) && (218 >= a1)) && (((a4==14) && ((a19==10) && ((a10==1) && (input == 4)))) && (a12==0)))) [L254] COND FALSE !((((a4==14) && (((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 5)) && (a19==9)) && (a12==0))) && (a10==0))) [L260] COND FALSE !((((a4==14) && ((((((a10==2) && ((38 < a1) && (218 >= a1)) ) || ((a10==2) && 218 < a1 )) || ( a1 <= -13 && (a10==3))) && (input == 2)) && (a19==9))) && (a12==0))) [L265] COND FALSE !((((a10==1) && (((a12==0) && ((input == 6) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ))) && (a4==14))) && (a19==9))) [L271] COND FALSE !(((((((input == 5) && (a4==14)) && 218 < a1 ) && (a10==4)) && (a19==9)) && (a12==0))) [L277] COND FALSE !(((a19==10) && ((a4==14) && ((a12==0) && ((input == 4) && ((((a10==0) && ((38 < a1) && (218 >= a1)) ) || ( 218 < a1 && (a10==0))) || ((a10==1) && a1 <= -13 ))))))) [L283] COND FALSE !((((a12==0) && ((((a19==9) && (input == 4)) && 218 < a1 ) && (a10==1))) && (a4==14))) [L286] COND FALSE !(((a10==1) && ((a4==14) && ((((a12==0) && (input == 2)) && (a19==9)) && 218 < a1 )))) [L291] COND FALSE !((((a4==14) && (((input == 4) && ((( ((38 < a1) && (218 >= a1)) && (a10==2)) || ((a10==2) && 218 < a1 )) || ( a1 <= -13 && (a10==3)))) && (a19==9))) && (a12==0))) [L296] COND FALSE !(((((a12==0) && ((((a10==0) && 218 < a1 ) || ((a10==1) && a1 <= -13 )) && (input == 2))) && (a19==9)) && (a4==14))) [L301] COND FALSE !((((a4==14) && ((a12==0) && ((input == 3) && (((a10==3) && 218 < a1 ) || ( a1 <= -13 && (a10==4)))))) && (a19==9))) [L306] COND FALSE !((((((a10==1) && ((a12==0) && (input == 6))) && (a19==10)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14))) [L312] COND FALSE !(((a19==9) && (((a10==4) && ( 218 < a1 && ((a4==14) && (input == 6)))) && (a12==0)))) [L317] COND FALSE !((((a10==0) && ((a12==0) && (((input == 4) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) )) && (a19==10)))) && (a4==14))) [L320] COND FALSE !(((a19==9) && ((((a4==14) && ((input == 2) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ))) && (a12==0)) && (a10==2)))) [L323] COND FALSE !((((((a12==0) && ((input == 4) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ))) && (a19==9)) && (a4==14)) && (a10==3))) [L326] COND FALSE !((((a4==14) && (((a12==0) && ( 218 < a1 && (input == 6))) && (a19==10))) && (a10==1))) [L329] COND FALSE !(((((((input == 2) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) )) && (a19==10)) && (a10==0)) && (a4==14)) && (a12==0))) [L335] COND FALSE !((((((( 218 < a1 && (a10==0)) || ((a10==1) && a1 <= -13 )) && (input == 3)) && (a4==14)) && (a12==0)) && (a19==9))) [L340] COND FALSE !(((a12==0) && ((a19==9) && (((input == 6) && (((a10==3) && 218 < a1 ) || ( a1 <= -13 && (a10==4)))) && (a4==14))))) [L345] COND FALSE !((((a10==3) && (((a19==9) && (( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 5))) && (a12==0))) && (a4==14))) [L351] COND FALSE !((((a12==0) && ((a10==1) && ( 218 < a1 && ((a19==9) && (input == 6))))) && (a4==14))) [L354] COND FALSE !(((a10==0) && ((a12==0) && (((( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ) && (input == 3)) && (a19==10)) && (a4==14))))) [L357] COND FALSE !((((a10==4) && (((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 4)) && (a4==14)) && (a19==9))) && (a12==0))) [L360] COND FALSE !(((a4==14) && ((a10==1) && ((a19==9) && ((a12==0) && (( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 4))))))) [L365] COND FALSE !(((a4==14) && ((a19==9) && (((( a1 <= -13 && (a10==3)) || (( ((38 < a1) && (218 >= a1)) && (a10==2)) || ((a10==2) && 218 < a1 ))) && (input == 3)) && (a12==0))))) [L370] COND FALSE !((((((a4==14) && ((input == 6) && (a10==1))) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a19==10))) [L375] COND FALSE !(((a4==14) && (((a12==0) && ( 218 < a1 && ((a19==9) && (input == 3)))) && (a10==4)))) [L378] COND FALSE !((((a4==14) && ((a12==0) && ((((a10==3) && 218 < a1 ) || ((a10==4) && a1 <= -13 )) && (input == 4)))) && (a19==9))) [L383] COND FALSE !((((a12==0) && (((a10==4) && (( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 3))) && (a4==14))) && (a19==9))) [L388] COND FALSE !(((a19==9) && ((a4==14) && (((input == 5) && ((( ((38 < a1) && (218 >= a1)) && (a10==2)) || ((a10==2) && 218 < a1 )) || ((a10==3) && a1 <= -13 ))) && (a12==0))))) [L393] COND FALSE !(((a12==0) && (((a19==9) && ((((a10==0) && 218 < a1 ) || ( a1 <= -13 && (a10==1))) && (input == 5))) && (a4==14)))) [L398] COND FALSE !(( 218 < a1 && ((((a12==0) && ((a19==9) && (input == 2))) && (a10==4)) && (a4==14)))) [L403] COND FALSE !((((a12==0) && ((a19==9) && ((((a10==3) && a1 <= -13 ) || (((a10==2) && ((38 < a1) && (218 >= a1)) ) || ( 218 < a1 && (a10==2)))) && (input == 6)))) && (a4==14))) [L408] COND FALSE !(((a19==9) && ((a12==0) && (((( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ) && (input == 5)) && (a4==14)) && (a10==2))))) [L414] COND FALSE !((((a10==1) && (((a12==0) && ((a19==10) && (input == 4))) && ((-13 < a1) && (38 >= a1)) )) && (a4==14))) [L419] COND FALSE !(((a12==0) && ((a4==14) && ( 218 < a1 && (((a10==1) && (input == 4)) && (a19==10)))))) [L425] COND FALSE !(((((((input == 3) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) )) && (a10==0)) && (a19==9)) && (a4==14)) && (a12==0))) [L430] COND FALSE !((((a4==14) && (((( a1 <= -13 && (a10==1)) || (((a10==0) && ((38 < a1) && (218 >= a1)) ) || ( 218 < a1 && (a10==0)))) && (input == 6)) && (a19==10))) && (a12==0))) [L436] COND FALSE !(((a19==9) && ((((input == 4) && (( 218 < a1 && (a10==0)) || ((a10==1) && a1 <= -13 ))) && (a12==0)) && (a4==14)))) [L442] COND FALSE !((((a19==10) && ((a12==0) && ((((a10==1) && a1 <= -13 ) || (( ((38 < a1) && (218 >= a1)) && (a10==0)) || ((a10==0) && 218 < a1 ))) && (input == 3)))) && (a4==14))) [L448] COND FALSE !(((a19==9) && (((a4==14) && ((((a10==3) && 218 < a1 ) || ( a1 <= -13 && (a10==4))) && (input == 5))) && (a12==0)))) [L454] COND FALSE !((((a12==0) && ((((input == 5) && (a19==10)) && ((38 < a1) && (218 >= a1)) ) && (a4==14))) && (a10==1))) [L460] COND FALSE !(((a19==9) && ((a4==14) && (((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 3)) && (a10==1)) && (a12==0))))) [L465] COND FALSE !(((a10==0) && ((a12==0) && ((((input == 5) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) )) && (a19==10)) && (a4==14))))) [L471] COND FALSE !(( 218 < a1 && (((((input == 3) && (a10==1)) && (a12==0)) && (a4==14)) && (a19==10)))) [L476] COND FALSE !((((a12==0) && ((a19==9) && (((input == 3) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) )) && (a4==14)))) && (a10==3))) [L481] COND FALSE !((((((a4==14) && ( ((38 < a1) && (218 >= a1)) && (input == 2))) && (a12==0)) && (a10==1)) && (a19==10))) [L487] COND FALSE !((((a19==10) && ((a10==1) && ((a12==0) && ( ((-13 < a1) && (38 >= a1)) && (input == 5))))) && (a4==14))) [L493] COND FALSE !(((((a10==1) && (((input == 5) && 218 < a1 ) && (a4==14))) && (a19==10)) && (a12==0))) [L499] COND FALSE !((((a4==14) && ((a19==9) && ((input == 2) && (((a10==3) && 218 < a1 ) || ((a10==4) && a1 <= -13 ))))) && (a12==0))) [L504] COND FALSE !((((a4==14) && (((a19==9) && (( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 2))) && (a12==0))) && (a10==4))) [L509] COND FALSE !(((a4==14) && (((a19==9) && ((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 6)) && (a10==3))) && (a12==0)))) [L514] COND FALSE !((((a4==14) && ((((input == 6) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) )) && (a19==10)) && (a12==0))) && (a10==0))) [L517] COND FALSE !(((a12==0) && ((a4==14) && (((( a1 <= -13 && (a10==1)) || (((a10==0) && ((38 < a1) && (218 >= a1)) ) || ( 218 < a1 && (a10==0)))) && (input == 2)) && (a19==10))))) [L523] COND FALSE !((((a12==0) && ((a19==9) && ((a10==2) && ((input == 6) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ))))) && (a4==14))) [L526] COND TRUE ((a4==14) && ((a19==9) && ((a12==0) && (((input == 2) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) )) && (a10==0))))) [L527] a1 = (((a1 * 5) + 278443) - -239546) [L528] return 26; [L590] RET, EXPR calculate_output(input) [L590] output = calculate_output(input) [L582] COND TRUE 1 [L585] int input; [L586] input = __VERIFIER_nondet_int() [L587] COND FALSE !((input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L590] CALL, EXPR calculate_output(input) [L21] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L24] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L27] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L30] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L33] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L36] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L39] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L42] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L45] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L48] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L51] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L54] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L57] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L60] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L63] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L66] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L69] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L72] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L75] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L78] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L81] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L84] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L87] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L90] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L93] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L96] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L99] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L102] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L105] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L108] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L111] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L114] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L117] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L120] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L123] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L126] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L129] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L132] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L135] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L138] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L141] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L144] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L147] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L150] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L153] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L156] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L159] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L162] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L165] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L168] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L171] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L174] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L177] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L180] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L183] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L186] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L189] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L192] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L195] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L198] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==9))) [L201] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L205] COND FALSE !((((a10==4) && ( 218 < a1 && (((input == 4) && (a12==0)) && (a4==14)))) && (a19==9))) [L210] COND FALSE !(((a4==14) && (((a12==0) && ((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 4)) && (a19==9))) && (a10==0)))) [L215] COND FALSE !(((((a4==14) && ((a19==10) && ((a10==1) && (input == 2)))) && (a12==0)) && 218 < a1 )) [L220] COND FALSE !(((a12==0) && ((a19==9) && ((a10==1) && (( 218 < a1 && (input == 3)) && (a4==14)))))) [L225] COND FALSE !(((a19==10) && (((a4==14) && (((((a10==0) && ((38 < a1) && (218 >= a1)) ) || ((a10==0) && 218 < a1 )) || ((a10==1) && a1 <= -13 )) && (input == 5))) && (a12==0)))) [L231] COND FALSE !(((a12==0) && ((a19==9) && (((a4==14) && ((input == 2) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ))) && (a10==3))))) [L236] COND FALSE !(((a12==0) && ((((a4==14) && ((input == 3) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ))) && (a10==2)) && (a19==9)))) [L239] COND FALSE !((((a12==0) && ( ((-13 < a1) && (38 >= a1)) && (((input == 3) && (a19==10)) && (a4==14)))) && (a10==1))) [L244] COND FALSE !((((a19==9) && (((input == 6) && (( 218 < a1 && (a10==0)) || ( a1 <= -13 && (a10==1)))) && (a4==14))) && (a12==0))) [L249] COND FALSE !(( ((38 < a1) && (218 >= a1)) && (((a4==14) && ((a19==10) && ((a10==1) && (input == 4)))) && (a12==0)))) [L254] COND FALSE !((((a4==14) && (((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 5)) && (a19==9)) && (a12==0))) && (a10==0))) [L260] COND FALSE !((((a4==14) && ((((((a10==2) && ((38 < a1) && (218 >= a1)) ) || ((a10==2) && 218 < a1 )) || ( a1 <= -13 && (a10==3))) && (input == 2)) && (a19==9))) && (a12==0))) [L265] COND FALSE !((((a10==1) && (((a12==0) && ((input == 6) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ))) && (a4==14))) && (a19==9))) [L271] COND FALSE !(((((((input == 5) && (a4==14)) && 218 < a1 ) && (a10==4)) && (a19==9)) && (a12==0))) [L277] COND FALSE !(((a19==10) && ((a4==14) && ((a12==0) && ((input == 4) && ((((a10==0) && ((38 < a1) && (218 >= a1)) ) || ( 218 < a1 && (a10==0))) || ((a10==1) && a1 <= -13 ))))))) [L283] COND FALSE !((((a12==0) && ((((a19==9) && (input == 4)) && 218 < a1 ) && (a10==1))) && (a4==14))) [L286] COND FALSE !(((a10==1) && ((a4==14) && ((((a12==0) && (input == 2)) && (a19==9)) && 218 < a1 )))) [L291] COND FALSE !((((a4==14) && (((input == 4) && ((( ((38 < a1) && (218 >= a1)) && (a10==2)) || ((a10==2) && 218 < a1 )) || ( a1 <= -13 && (a10==3)))) && (a19==9))) && (a12==0))) [L296] COND FALSE !(((((a12==0) && ((((a10==0) && 218 < a1 ) || ((a10==1) && a1 <= -13 )) && (input == 2))) && (a19==9)) && (a4==14))) [L301] COND FALSE !((((a4==14) && ((a12==0) && ((input == 3) && (((a10==3) && 218 < a1 ) || ( a1 <= -13 && (a10==4)))))) && (a19==9))) [L306] COND FALSE !((((((a10==1) && ((a12==0) && (input == 6))) && (a19==10)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14))) [L312] COND FALSE !(((a19==9) && (((a10==4) && ( 218 < a1 && ((a4==14) && (input == 6)))) && (a12==0)))) [L317] COND FALSE !((((a10==0) && ((a12==0) && (((input == 4) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) )) && (a19==10)))) && (a4==14))) [L320] COND FALSE !(((a19==9) && ((((a4==14) && ((input == 2) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ))) && (a12==0)) && (a10==2)))) [L323] COND FALSE !((((((a12==0) && ((input == 4) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ))) && (a19==9)) && (a4==14)) && (a10==3))) [L326] COND FALSE !((((a4==14) && (((a12==0) && ( 218 < a1 && (input == 6))) && (a19==10))) && (a10==1))) [L329] COND FALSE !(((((((input == 2) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) )) && (a19==10)) && (a10==0)) && (a4==14)) && (a12==0))) [L335] COND TRUE (((((( 218 < a1 && (a10==0)) || ((a10==1) && a1 <= -13 )) && (input == 3)) && (a4==14)) && (a12==0)) && (a19==9)) [L336] a1 = ((((((a1 / 5) % 25)+ 13) * 5) % 25)- -12) [L337] a10 = 4 [L339] return 22; [L590] RET, EXPR calculate_output(input) [L590] output = calculate_output(input) [L582] COND TRUE 1 [L585] int input; [L586] input = __VERIFIER_nondet_int() [L587] COND FALSE !((input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L590] CALL, EXPR calculate_output(input) [L21] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L24] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L27] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L30] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L33] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L36] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L39] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L42] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L45] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L48] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L51] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L54] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L57] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L60] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L63] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L66] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L69] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L72] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L75] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L78] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L81] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L84] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L87] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L90] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L93] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L96] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L99] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L102] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L105] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L108] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L111] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L114] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L117] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L120] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L123] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L126] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L129] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L132] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L135] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L138] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L141] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L144] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L147] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L150] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L153] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L156] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L159] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L162] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L165] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L168] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L171] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L174] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L177] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L180] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L183] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L186] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L189] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L192] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L195] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L198] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==9))) [L201] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L205] COND FALSE !((((a10==4) && ( 218 < a1 && (((input == 4) && (a12==0)) && (a4==14)))) && (a19==9))) [L210] COND FALSE !(((a4==14) && (((a12==0) && ((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 4)) && (a19==9))) && (a10==0)))) [L215] COND FALSE !(((((a4==14) && ((a19==10) && ((a10==1) && (input == 2)))) && (a12==0)) && 218 < a1 )) [L220] COND FALSE !(((a12==0) && ((a19==9) && ((a10==1) && (( 218 < a1 && (input == 3)) && (a4==14)))))) [L225] COND FALSE !(((a19==10) && (((a4==14) && (((((a10==0) && ((38 < a1) && (218 >= a1)) ) || ((a10==0) && 218 < a1 )) || ((a10==1) && a1 <= -13 )) && (input == 5))) && (a12==0)))) [L231] COND FALSE !(((a12==0) && ((a19==9) && (((a4==14) && ((input == 2) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ))) && (a10==3))))) [L236] COND FALSE !(((a12==0) && ((((a4==14) && ((input == 3) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ))) && (a10==2)) && (a19==9)))) [L239] COND FALSE !((((a12==0) && ( ((-13 < a1) && (38 >= a1)) && (((input == 3) && (a19==10)) && (a4==14)))) && (a10==1))) [L244] COND FALSE !((((a19==9) && (((input == 6) && (( 218 < a1 && (a10==0)) || ( a1 <= -13 && (a10==1)))) && (a4==14))) && (a12==0))) [L249] COND FALSE !(( ((38 < a1) && (218 >= a1)) && (((a4==14) && ((a19==10) && ((a10==1) && (input == 4)))) && (a12==0)))) [L254] COND FALSE !((((a4==14) && (((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 5)) && (a19==9)) && (a12==0))) && (a10==0))) [L260] COND FALSE !((((a4==14) && ((((((a10==2) && ((38 < a1) && (218 >= a1)) ) || ((a10==2) && 218 < a1 )) || ( a1 <= -13 && (a10==3))) && (input == 2)) && (a19==9))) && (a12==0))) [L265] COND FALSE !((((a10==1) && (((a12==0) && ((input == 6) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ))) && (a4==14))) && (a19==9))) [L271] COND FALSE !(((((((input == 5) && (a4==14)) && 218 < a1 ) && (a10==4)) && (a19==9)) && (a12==0))) [L277] COND FALSE !(((a19==10) && ((a4==14) && ((a12==0) && ((input == 4) && ((((a10==0) && ((38 < a1) && (218 >= a1)) ) || ( 218 < a1 && (a10==0))) || ((a10==1) && a1 <= -13 ))))))) [L283] COND FALSE !((((a12==0) && ((((a19==9) && (input == 4)) && 218 < a1 ) && (a10==1))) && (a4==14))) [L286] COND FALSE !(((a10==1) && ((a4==14) && ((((a12==0) && (input == 2)) && (a19==9)) && 218 < a1 )))) [L291] COND FALSE !((((a4==14) && (((input == 4) && ((( ((38 < a1) && (218 >= a1)) && (a10==2)) || ((a10==2) && 218 < a1 )) || ( a1 <= -13 && (a10==3)))) && (a19==9))) && (a12==0))) [L296] COND FALSE !(((((a12==0) && ((((a10==0) && 218 < a1 ) || ((a10==1) && a1 <= -13 )) && (input == 2))) && (a19==9)) && (a4==14))) [L301] COND FALSE !((((a4==14) && ((a12==0) && ((input == 3) && (((a10==3) && 218 < a1 ) || ( a1 <= -13 && (a10==4)))))) && (a19==9))) [L306] COND FALSE !((((((a10==1) && ((a12==0) && (input == 6))) && (a19==10)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14))) [L312] COND FALSE !(((a19==9) && (((a10==4) && ( 218 < a1 && ((a4==14) && (input == 6)))) && (a12==0)))) [L317] COND FALSE !((((a10==0) && ((a12==0) && (((input == 4) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) )) && (a19==10)))) && (a4==14))) [L320] COND FALSE !(((a19==9) && ((((a4==14) && ((input == 2) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ))) && (a12==0)) && (a10==2)))) [L323] COND FALSE !((((((a12==0) && ((input == 4) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ))) && (a19==9)) && (a4==14)) && (a10==3))) [L326] COND FALSE !((((a4==14) && (((a12==0) && ( 218 < a1 && (input == 6))) && (a19==10))) && (a10==1))) [L329] COND FALSE !(((((((input == 2) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) )) && (a19==10)) && (a10==0)) && (a4==14)) && (a12==0))) [L335] COND FALSE !((((((( 218 < a1 && (a10==0)) || ((a10==1) && a1 <= -13 )) && (input == 3)) && (a4==14)) && (a12==0)) && (a19==9))) [L340] COND FALSE !(((a12==0) && ((a19==9) && (((input == 6) && (((a10==3) && 218 < a1 ) || ( a1 <= -13 && (a10==4)))) && (a4==14))))) [L345] COND FALSE !((((a10==3) && (((a19==9) && (( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 5))) && (a12==0))) && (a4==14))) [L351] COND FALSE !((((a12==0) && ((a10==1) && ( 218 < a1 && ((a19==9) && (input == 6))))) && (a4==14))) [L354] COND FALSE !(((a10==0) && ((a12==0) && (((( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ) && (input == 3)) && (a19==10)) && (a4==14))))) [L357] COND FALSE !((((a10==4) && (((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 4)) && (a4==14)) && (a19==9))) && (a12==0))) [L360] COND FALSE !(((a4==14) && ((a10==1) && ((a19==9) && ((a12==0) && (( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 4))))))) [L365] COND FALSE !(((a4==14) && ((a19==9) && (((( a1 <= -13 && (a10==3)) || (( ((38 < a1) && (218 >= a1)) && (a10==2)) || ((a10==2) && 218 < a1 ))) && (input == 3)) && (a12==0))))) [L370] COND FALSE !((((((a4==14) && ((input == 6) && (a10==1))) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a19==10))) [L375] COND FALSE !(((a4==14) && (((a12==0) && ( 218 < a1 && ((a19==9) && (input == 3)))) && (a10==4)))) [L378] COND FALSE !((((a4==14) && ((a12==0) && ((((a10==3) && 218 < a1 ) || ((a10==4) && a1 <= -13 )) && (input == 4)))) && (a19==9))) [L383] COND FALSE !((((a12==0) && (((a10==4) && (( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 3))) && (a4==14))) && (a19==9))) [L388] COND FALSE !(((a19==9) && ((a4==14) && (((input == 5) && ((( ((38 < a1) && (218 >= a1)) && (a10==2)) || ((a10==2) && 218 < a1 )) || ((a10==3) && a1 <= -13 ))) && (a12==0))))) [L393] COND FALSE !(((a12==0) && (((a19==9) && ((((a10==0) && 218 < a1 ) || ( a1 <= -13 && (a10==1))) && (input == 5))) && (a4==14)))) [L398] COND FALSE !(( 218 < a1 && ((((a12==0) && ((a19==9) && (input == 2))) && (a10==4)) && (a4==14)))) [L403] COND FALSE !((((a12==0) && ((a19==9) && ((((a10==3) && a1 <= -13 ) || (((a10==2) && ((38 < a1) && (218 >= a1)) ) || ( 218 < a1 && (a10==2)))) && (input == 6)))) && (a4==14))) [L408] COND FALSE !(((a19==9) && ((a12==0) && (((( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ) && (input == 5)) && (a4==14)) && (a10==2))))) [L414] COND FALSE !((((a10==1) && (((a12==0) && ((a19==10) && (input == 4))) && ((-13 < a1) && (38 >= a1)) )) && (a4==14))) [L419] COND FALSE !(((a12==0) && ((a4==14) && ( 218 < a1 && (((a10==1) && (input == 4)) && (a19==10)))))) [L425] COND FALSE !(((((((input == 3) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) )) && (a10==0)) && (a19==9)) && (a4==14)) && (a12==0))) [L430] COND FALSE !((((a4==14) && (((( a1 <= -13 && (a10==1)) || (((a10==0) && ((38 < a1) && (218 >= a1)) ) || ( 218 < a1 && (a10==0)))) && (input == 6)) && (a19==10))) && (a12==0))) [L436] COND FALSE !(((a19==9) && ((((input == 4) && (( 218 < a1 && (a10==0)) || ((a10==1) && a1 <= -13 ))) && (a12==0)) && (a4==14)))) [L442] COND FALSE !((((a19==10) && ((a12==0) && ((((a10==1) && a1 <= -13 ) || (( ((38 < a1) && (218 >= a1)) && (a10==0)) || ((a10==0) && 218 < a1 ))) && (input == 3)))) && (a4==14))) [L448] COND FALSE !(((a19==9) && (((a4==14) && ((((a10==3) && 218 < a1 ) || ( a1 <= -13 && (a10==4))) && (input == 5))) && (a12==0)))) [L454] COND FALSE !((((a12==0) && ((((input == 5) && (a19==10)) && ((38 < a1) && (218 >= a1)) ) && (a4==14))) && (a10==1))) [L460] COND FALSE !(((a19==9) && ((a4==14) && (((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 3)) && (a10==1)) && (a12==0))))) [L465] COND FALSE !(((a10==0) && ((a12==0) && ((((input == 5) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) )) && (a19==10)) && (a4==14))))) [L471] COND FALSE !(( 218 < a1 && (((((input == 3) && (a10==1)) && (a12==0)) && (a4==14)) && (a19==10)))) [L476] COND FALSE !((((a12==0) && ((a19==9) && (((input == 3) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) )) && (a4==14)))) && (a10==3))) [L481] COND FALSE !((((((a4==14) && ( ((38 < a1) && (218 >= a1)) && (input == 2))) && (a12==0)) && (a10==1)) && (a19==10))) [L487] COND FALSE !((((a19==10) && ((a10==1) && ((a12==0) && ( ((-13 < a1) && (38 >= a1)) && (input == 5))))) && (a4==14))) [L493] COND FALSE !(((((a10==1) && (((input == 5) && 218 < a1 ) && (a4==14))) && (a19==10)) && (a12==0))) [L499] COND FALSE !((((a4==14) && ((a19==9) && ((input == 2) && (((a10==3) && 218 < a1 ) || ((a10==4) && a1 <= -13 ))))) && (a12==0))) [L504] COND FALSE !((((a4==14) && (((a19==9) && (( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 2))) && (a12==0))) && (a10==4))) [L509] COND FALSE !(((a4==14) && (((a19==9) && ((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 6)) && (a10==3))) && (a12==0)))) [L514] COND FALSE !((((a4==14) && ((((input == 6) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) )) && (a19==10)) && (a12==0))) && (a10==0))) [L517] COND FALSE !(((a12==0) && ((a4==14) && (((( a1 <= -13 && (a10==1)) || (((a10==0) && ((38 < a1) && (218 >= a1)) ) || ( 218 < a1 && (a10==0)))) && (input == 2)) && (a19==10))))) [L523] COND FALSE !((((a12==0) && ((a19==9) && ((a10==2) && ((input == 6) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ))))) && (a4==14))) [L526] COND FALSE !(((a4==14) && ((a19==9) && ((a12==0) && (((input == 2) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) )) && (a10==0)))))) [L529] COND FALSE !(((a19==9) && (((a10==1) && ((a12==0) && ((input == 2) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) )))) && (a4==14)))) [L534] COND FALSE !(((a19==9) && ((a4==14) && ((a10==1) && (((input == 5) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) )) && (a12==0)))))) [L540] COND FALSE !(((a12==0) && (((((input == 6) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) )) && (a19==9)) && (a4==14)) && (a10==0)))) [L545] COND FALSE !(((a4==14) && (((a12==0) && ((a19==9) && ((input == 6) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) )))) && (a10==4)))) [L548] COND FALSE !(((((( ((38 < a1) && (218 >= a1)) && (input == 3)) && (a10==1)) && (a12==0)) && (a4==14)) && (a19==10))) [L554] COND FALSE !((((a4==14) && (((( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ) && (input == 4)) && (a12==0)) && (a19==9))) && (a10==2))) [L557] COND FALSE !(((a12==0) && ((( 218 < a1 && ((a19==9) && (input == 5))) && (a10==1)) && (a4==14)))) [L563] COND TRUE ((a4==14) && ((((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 5)) && (a12==0)) && (a19==9)) && (a10==4))) [L564] a1 = (((a1 + 566454) + 1842) + 23814) [L565] a10 = 2 [L566] a19 = 8 [L568] return -1; [L590] RET, EXPR calculate_output(input) [L590] output = calculate_output(input) [L582] COND TRUE 1 [L585] int input; [L586] input = __VERIFIER_nondet_int() [L587] COND FALSE !((input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L590] CALL calculate_output(input) [L21] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L24] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L27] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L30] COND TRUE (((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8)) [L31] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 68.3s, OverallIterations: 17, TraceHistogramMax: 4, AutomataDifference: 30.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 438 SDtfs, 6011 SDslu, 485 SDs, 0 SdLazy, 13946 SolverSat, 1505 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 19.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 263 GetRequests, 135 SyntacticMatches, 4 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2669occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 16 MinimizatonAttempts, 462 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 35.3s InterpolantComputationTime, 3835 NumberOfCodeBlocks, 3835 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 3432 ConstructedInterpolants, 0 QuantifiedInterpolants, 3957548 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 1 PerfectInterpolantSequences, 1662/1993 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 incorrect! Received shutdown request...