/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label35.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 00:43:26,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 00:43:26,951 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 00:43:26,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 00:43:26,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 00:43:26,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 00:43:27,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 00:43:27,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 00:43:27,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 00:43:27,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 00:43:27,011 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 00:43:27,012 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 00:43:27,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 00:43:27,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 00:43:27,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 00:43:27,019 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 00:43:27,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 00:43:27,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 00:43:27,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 00:43:27,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 00:43:27,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 00:43:27,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 00:43:27,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 00:43:27,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 00:43:27,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 00:43:27,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 00:43:27,050 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 00:43:27,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 00:43:27,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 00:43:27,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 00:43:27,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 00:43:27,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 00:43:27,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 00:43:27,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 00:43:27,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 00:43:27,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 00:43:27,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 00:43:27,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 00:43:27,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 00:43:27,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 00:43:27,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 00:43:27,068 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 [2020-10-14 00:43:27,090 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 00:43:27,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 00:43:27,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 00:43:27,092 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 00:43:27,092 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 00:43:27,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 00:43:27,093 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 00:43:27,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 00:43:27,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 00:43:27,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 00:43:27,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 00:43:27,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 00:43:27,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 00:43:27,094 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 00:43:27,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 00:43:27,094 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 00:43:27,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 00:43:27,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 00:43:27,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 00:43:27,095 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 00:43:27,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 00:43:27,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 00:43:27,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 00:43:27,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 00:43:27,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 00:43:27,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 00:43:27,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 00:43:27,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 00:43:27,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 00:43:27,097 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 00:43:27,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 00:43:27,413 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 00:43:27,417 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 00:43:27,419 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 00:43:27,419 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 00:43:27,420 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label35.c [2020-10-14 00:43:27,493 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13184231f/20ec73cb07af4cdd87935dfc3da04329/FLAG20a54374e [2020-10-14 00:43:28,095 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 00:43:28,096 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label35.c [2020-10-14 00:43:28,110 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13184231f/20ec73cb07af4cdd87935dfc3da04329/FLAG20a54374e [2020-10-14 00:43:28,355 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13184231f/20ec73cb07af4cdd87935dfc3da04329 [2020-10-14 00:43:28,364 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 00:43:28,365 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 00:43:28,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 00:43:28,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 00:43:28,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 00:43:28,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:43:28" (1/1) ... [2020-10-14 00:43:28,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cbeb4c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:28, skipping insertion in model container [2020-10-14 00:43:28,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:43:28" (1/1) ... [2020-10-14 00:43:28,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 00:43:28,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 00:43:29,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:43:29,005 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 00:43:29,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:43:29,133 INFO L208 MainTranslator]: Completed translation [2020-10-14 00:43:29,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:29 WrapperNode [2020-10-14 00:43:29,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 00:43:29,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 00:43:29,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 00:43:29,135 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 00:43:29,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:29" (1/1) ... [2020-10-14 00:43:29,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:29" (1/1) ... [2020-10-14 00:43:29,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:29" (1/1) ... [2020-10-14 00:43:29,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:29" (1/1) ... [2020-10-14 00:43:29,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:29" (1/1) ... [2020-10-14 00:43:29,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:29" (1/1) ... [2020-10-14 00:43:29,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:29" (1/1) ... [2020-10-14 00:43:29,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 00:43:29,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 00:43:29,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 00:43:29,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 00:43:29,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:29" (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 [2020-10-14 00:43:29,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 00:43:29,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 00:43:29,314 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 00:43:29,314 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 00:43:29,315 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 00:43:29,315 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 00:43:29,315 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 00:43:29,315 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 00:43:29,315 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 00:43:29,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 00:43:29,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 00:43:30,422 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 00:43:30,422 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 00:43:30,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:43:30 BoogieIcfgContainer [2020-10-14 00:43:30,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 00:43:30,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 00:43:30,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 00:43:30,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 00:43:30,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:43:28" (1/3) ... [2020-10-14 00:43:30,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd19fa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:43:30, skipping insertion in model container [2020-10-14 00:43:30,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:29" (2/3) ... [2020-10-14 00:43:30,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd19fa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:43:30, skipping insertion in model container [2020-10-14 00:43:30,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:43:30" (3/3) ... [2020-10-14 00:43:30,438 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label35.c [2020-10-14 00:43:30,450 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 00:43:30,458 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 00:43:30,474 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 00:43:30,506 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 00:43:30,506 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 00:43:30,506 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 00:43:30,506 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 00:43:30,507 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 00:43:30,507 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 00:43:30,507 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 00:43:30,507 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 00:43:30,534 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-14 00:43:30,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-14 00:43:30,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:43:30,546 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:43:30,547 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:43:30,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:43:30,555 INFO L82 PathProgramCache]: Analyzing trace with hash 279627110, now seen corresponding path program 1 times [2020-10-14 00:43:30,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:43:30,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [52913149] [2020-10-14 00:43:30,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:43:30,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:30,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:31,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:32,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:32,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 00:43:32,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:43:32,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1578 [2020-10-14 00:43:32,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:32,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:32,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 00:43:32,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 00:43:32,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 00:43:32,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 00:43:32,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:43:32,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:32,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:32,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:32,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:43:32,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:32,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 00:43:32,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:32,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:32,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:43:32,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:32,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 00:43:32,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 00:43:32,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:43:32,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [52913149] [2020-10-14 00:43:32,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 00:43:32,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 00:43:32,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167051703] [2020-10-14 00:43:32,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 00:43:32,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:43:32,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 00:43:32,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 00:43:32,718 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 4 states. [2020-10-14 00:43:34,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:43:34,316 INFO L93 Difference]: Finished difference Result 557 states and 956 transitions. [2020-10-14 00:43:34,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:43:34,318 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 86 [2020-10-14 00:43:34,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:43:34,335 INFO L225 Difference]: With dead ends: 557 [2020-10-14 00:43:34,336 INFO L226 Difference]: Without dead ends: 286 [2020-10-14 00:43:34,343 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:43:34,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-10-14 00:43:34,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2020-10-14 00:43:34,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-10-14 00:43:34,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 396 transitions. [2020-10-14 00:43:34,420 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 396 transitions. Word has length 86 [2020-10-14 00:43:34,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:43:34,421 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 396 transitions. [2020-10-14 00:43:34,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 00:43:34,421 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 396 transitions. [2020-10-14 00:43:34,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 00:43:34,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:43:34,427 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 00:43:34,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 00:43:34,427 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:43:34,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:43:34,428 INFO L82 PathProgramCache]: Analyzing trace with hash -53773379, now seen corresponding path program 1 times [2020-10-14 00:43:34,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:43:34,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2080895401] [2020-10-14 00:43:34,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:43:34,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:34,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:34,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:35,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:35,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 00:43:35,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:43:35,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 726 [2020-10-14 00:43:35,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:35,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:35,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:35,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-14 00:43:35,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 00:43:35,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:35,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:43:35,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:35,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:35,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:35,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:43:35,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:35,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 00:43:35,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:35,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:35,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:43:35,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:35,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:43:35,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:35,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:43:35,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:35,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:35,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:35,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 00:43:35,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:35,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 00:43:35,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:35,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:35,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:43:35,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:35,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 00:43:35,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:35,428 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:43:35,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2080895401] [2020-10-14 00:43:35,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:43:35,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:43:35,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962815768] [2020-10-14 00:43:35,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:43:35,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:43:35,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:43:35,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:43:35,432 INFO L87 Difference]: Start difference. First operand 280 states and 396 transitions. Second operand 5 states. [2020-10-14 00:43:36,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:43:36,641 INFO L93 Difference]: Finished difference Result 834 states and 1197 transitions. [2020-10-14 00:43:36,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:43:36,642 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 96 [2020-10-14 00:43:36,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:43:36,647 INFO L225 Difference]: With dead ends: 834 [2020-10-14 00:43:36,647 INFO L226 Difference]: Without dead ends: 560 [2020-10-14 00:43:36,649 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 [2020-10-14 00:43:36,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-10-14 00:43:36,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 556. [2020-10-14 00:43:36,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-10-14 00:43:36,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 710 transitions. [2020-10-14 00:43:36,683 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 710 transitions. Word has length 96 [2020-10-14 00:43:36,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:43:36,684 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 710 transitions. [2020-10-14 00:43:36,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:43:36,685 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 710 transitions. [2020-10-14 00:43:36,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-14 00:43:36,688 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:43:36,689 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 00:43:36,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 00:43:36,689 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:43:36,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:43:36,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1420356985, now seen corresponding path program 1 times [2020-10-14 00:43:36,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:43:36,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1001273257] [2020-10-14 00:43:36,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:43:36,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:36,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:37,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:37,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 00:43:37,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:37,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-14 00:43:37,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:37,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:37,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 00:43:37,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 00:43:37,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 00:43:37,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:37,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:43:37,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:37,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:37,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:37,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:43:37,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:37,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 00:43:37,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:37,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:37,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:43:37,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:37,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 00:43:37,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:37,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:43:37,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:37,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:37,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:37,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:43:37,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:37,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 00:43:37,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:37,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:37,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:37,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:43:37,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 00:43:37,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:37,193 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:43:37,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1001273257] [2020-10-14 00:43:37,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 00:43:37,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 00:43:37,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771005254] [2020-10-14 00:43:37,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:43:37,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:43:37,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:43:37,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:43:37,197 INFO L87 Difference]: Start difference. First operand 556 states and 710 transitions. Second operand 7 states. [2020-10-14 00:43:38,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:43:38,598 INFO L93 Difference]: Finished difference Result 1452 states and 2013 transitions. [2020-10-14 00:43:38,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 00:43:38,599 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 98 [2020-10-14 00:43:38,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:43:38,608 INFO L225 Difference]: With dead ends: 1452 [2020-10-14 00:43:38,608 INFO L226 Difference]: Without dead ends: 902 [2020-10-14 00:43:38,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 00:43:38,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2020-10-14 00:43:38,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 842. [2020-10-14 00:43:38,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 842 states. [2020-10-14 00:43:38,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1043 transitions. [2020-10-14 00:43:38,690 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1043 transitions. Word has length 98 [2020-10-14 00:43:38,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:43:38,691 INFO L479 AbstractCegarLoop]: Abstraction has 842 states and 1043 transitions. [2020-10-14 00:43:38,691 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:43:38,691 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1043 transitions. [2020-10-14 00:43:38,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-14 00:43:38,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:43:38,697 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:43:38,697 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 00:43:38,697 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:43:38,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:43:38,698 INFO L82 PathProgramCache]: Analyzing trace with hash -743702124, now seen corresponding path program 1 times [2020-10-14 00:43:38,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:43:38,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [996836492] [2020-10-14 00:43:38,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:43:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:38,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:38,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:39,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:39,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 00:43:39,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:43:39,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 644 [2020-10-14 00:43:39,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:39,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:39,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:39,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 00:43:39,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 00:43:39,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-14 00:43:39,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:43:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:39,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:39,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:39,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:43:39,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:39,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:43:39,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:39,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:39,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:43:39,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:39,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:43:39,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:39,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:43:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:39,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:39,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:39,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:43:39,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:39,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:43:39,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:39,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:39,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:43:39,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:39,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 00:43:39,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:39,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 00:43:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:39,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:39,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:39,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:43:39,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:39,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 00:43:39,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:39,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:39,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:39,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:43:39,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 00:43:39,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:39,569 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 00:43:39,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [996836492] [2020-10-14 00:43:39,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:43:39,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:43:39,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327098757] [2020-10-14 00:43:39,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:43:39,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:43:39,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:43:39,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:43:39,572 INFO L87 Difference]: Start difference. First operand 842 states and 1043 transitions. Second operand 7 states. [2020-10-14 00:43:41,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:43:41,131 INFO L93 Difference]: Finished difference Result 2234 states and 2836 transitions. [2020-10-14 00:43:41,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 00:43:41,132 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 106 [2020-10-14 00:43:41,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:43:41,148 INFO L225 Difference]: With dead ends: 2234 [2020-10-14 00:43:41,149 INFO L226 Difference]: Without dead ends: 1124 [2020-10-14 00:43:41,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:43:41,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2020-10-14 00:43:41,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 977. [2020-10-14 00:43:41,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 977 states. [2020-10-14 00:43:41,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1184 transitions. [2020-10-14 00:43:41,234 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1184 transitions. Word has length 106 [2020-10-14 00:43:41,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:43:41,235 INFO L479 AbstractCegarLoop]: Abstraction has 977 states and 1184 transitions. [2020-10-14 00:43:41,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:43:41,235 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1184 transitions. [2020-10-14 00:43:41,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-14 00:43:41,248 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:43:41,248 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 00:43:41,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 00:43:41,249 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:43:41,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:43:41,250 INFO L82 PathProgramCache]: Analyzing trace with hash -579647982, now seen corresponding path program 1 times [2020-10-14 00:43:41,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:43:41,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1272158884] [2020-10-14 00:43:41,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:43:41,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:41,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:41,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:41,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:41,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 00:43:41,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:43:41,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 696 [2020-10-14 00:43:41,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:41,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:41,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:41,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 00:43:41,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 00:43:41,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:42,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:43:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:42,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:42,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:42,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:43:42,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:42,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 00:43:42,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:42,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:42,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:43:42,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:42,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:43:42,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:42,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:43:42,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:42,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:42,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:42,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 00:43:42,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:42,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 00:43:42,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:42,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:42,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:43:42,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:42,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:43:42,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:42,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 00:43:42,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:42,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:42,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:42,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:43:42,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:42,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 00:43:42,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:42,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:42,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:42,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:43:42,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 00:43:42,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 00:43:42,263 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 00:43:42,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1272158884] [2020-10-14 00:43:42,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:43:42,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:43:42,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626734485] [2020-10-14 00:43:42,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:43:42,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:43:42,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:43:42,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:43:42,266 INFO L87 Difference]: Start difference. First operand 977 states and 1184 transitions. Second operand 7 states. [2020-10-14 00:43:43,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:43:43,616 INFO L93 Difference]: Finished difference Result 2657 states and 3303 transitions. [2020-10-14 00:43:43,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 00:43:43,617 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 109 [2020-10-14 00:43:43,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:43:43,625 INFO L225 Difference]: With dead ends: 2657 [2020-10-14 00:43:43,626 INFO L226 Difference]: Without dead ends: 1543 [2020-10-14 00:43:43,630 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 00:43:43,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2020-10-14 00:43:43,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1400. [2020-10-14 00:43:43,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1400 states. [2020-10-14 00:43:43,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 1609 transitions. [2020-10-14 00:43:43,680 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 1609 transitions. Word has length 109 [2020-10-14 00:43:43,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:43:43,681 INFO L479 AbstractCegarLoop]: Abstraction has 1400 states and 1609 transitions. [2020-10-14 00:43:43,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:43:43,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 1609 transitions. [2020-10-14 00:43:43,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-14 00:43:43,684 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:43:43,685 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:43:43,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 00:43:43,685 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:43:43,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:43:43,686 INFO L82 PathProgramCache]: Analyzing trace with hash 753402114, now seen corresponding path program 1 times [2020-10-14 00:43:43,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:43:43,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [227199994] [2020-10-14 00:43:43,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:43:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:43,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:43,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:44,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:44,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 00:43:44,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:43:44,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 961 [2020-10-14 00:43:44,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:44,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:44,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:44,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 00:43:44,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 00:43:44,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:44,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:43:44,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:44,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:44,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:44,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:43:44,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:44,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:43:44,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:44,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:44,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:43:44,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:44,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:43:44,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:44,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:43:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:44,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:44,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:44,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 00:43:44,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:44,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 00:43:44,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:44,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:44,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:43:44,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:44,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 00:43:44,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:44,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 00:43:44,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:44,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:44,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:44,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:43:44,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:44,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 00:43:44,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:44,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:44,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:44,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:43:44,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 00:43:44,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:44,993 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 00:43:44,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [227199994] [2020-10-14 00:43:44,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:43:44,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:43:44,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011754552] [2020-10-14 00:43:44,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:43:44,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:43:44,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:43:44,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:43:44,997 INFO L87 Difference]: Start difference. First operand 1400 states and 1609 transitions. Second operand 7 states. [2020-10-14 00:43:46,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:43:46,016 INFO L93 Difference]: Finished difference Result 3084 states and 3623 transitions. [2020-10-14 00:43:46,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 00:43:46,017 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 117 [2020-10-14 00:43:46,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:43:46,026 INFO L225 Difference]: With dead ends: 3084 [2020-10-14 00:43:46,026 INFO L226 Difference]: Without dead ends: 1690 [2020-10-14 00:43:46,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 00:43:46,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2020-10-14 00:43:46,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1684. [2020-10-14 00:43:46,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1684 states. [2020-10-14 00:43:46,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 1921 transitions. [2020-10-14 00:43:46,082 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 1921 transitions. Word has length 117 [2020-10-14 00:43:46,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:43:46,082 INFO L479 AbstractCegarLoop]: Abstraction has 1684 states and 1921 transitions. [2020-10-14 00:43:46,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:43:46,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 1921 transitions. [2020-10-14 00:43:46,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-14 00:43:46,086 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:43:46,087 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:43:46,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 00:43:46,087 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:43:46,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:43:46,088 INFO L82 PathProgramCache]: Analyzing trace with hash -315844570, now seen corresponding path program 1 times [2020-10-14 00:43:46,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:43:46,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1404120270] [2020-10-14 00:43:46,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:43:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:46,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:46,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:47,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:47,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 00:43:47,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:43:47,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1216 [2020-10-14 00:43:47,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:47,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:47,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:47,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-14 00:43:47,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 00:43:47,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:43:47,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:43:47,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:47,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:47,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:47,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:43:47,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:47,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:43:47,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:47,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:47,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:43:47,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:47,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:43:47,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:47,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:43:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:47,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:47,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:47,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 00:43:47,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:47,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 00:43:47,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:47,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:47,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:43:47,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:47,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 00:43:47,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:47,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 00:43:47,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:47,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:47,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:47,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:43:47,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:47,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 00:43:47,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:47,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:47,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:47,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:43:47,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 00:43:47,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:47,573 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 00:43:47,574 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1404120270] [2020-10-14 00:43:47,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:43:47,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:43:47,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55484493] [2020-10-14 00:43:47,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:43:47,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:43:47,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:43:47,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:43:47,577 INFO L87 Difference]: Start difference. First operand 1684 states and 1921 transitions. Second operand 7 states. [2020-10-14 00:43:49,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:43:49,191 INFO L93 Difference]: Finished difference Result 3918 states and 4500 transitions. [2020-10-14 00:43:49,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 00:43:49,192 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 131 [2020-10-14 00:43:49,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:43:49,203 INFO L225 Difference]: With dead ends: 3918 [2020-10-14 00:43:49,203 INFO L226 Difference]: Without dead ends: 2240 [2020-10-14 00:43:49,208 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 00:43:49,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2020-10-14 00:43:49,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 2230. [2020-10-14 00:43:49,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2230 states. [2020-10-14 00:43:49,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2230 states to 2230 states and 2456 transitions. [2020-10-14 00:43:49,278 INFO L78 Accepts]: Start accepts. Automaton has 2230 states and 2456 transitions. Word has length 131 [2020-10-14 00:43:49,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:43:49,278 INFO L479 AbstractCegarLoop]: Abstraction has 2230 states and 2456 transitions. [2020-10-14 00:43:49,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:43:49,278 INFO L276 IsEmpty]: Start isEmpty. Operand 2230 states and 2456 transitions. [2020-10-14 00:43:49,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-14 00:43:49,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:43:49,283 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:43:49,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 00:43:49,284 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:43:49,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:43:49,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1882401814, now seen corresponding path program 1 times [2020-10-14 00:43:49,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:43:49,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [911225673] [2020-10-14 00:43:49,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:43:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:49,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:49,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:49,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:52,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:52,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 00:43:52,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 00:43:52,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3019 [2020-10-14 00:43:52,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:52,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:52,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:52,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-14 00:43:52,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 00:43:52,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:52,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:43:52,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:52,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:52,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:52,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:43:52,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:52,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:43:52,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:52,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:52,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:43:52,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:52,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:43:52,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:52,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:43:52,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:52,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:52,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:52,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 00:43:52,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:52,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 00:43:52,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:52,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:52,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:43:52,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:52,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:43:52,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:52,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 00:43:52,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:52,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:52,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:52,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 00:43:52,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:52,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 00:43:52,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:52,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:52,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:43:52,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:52,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 00:43:52,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:52,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 00:43:52,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:52,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:52,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:52,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 00:43:52,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:52,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 00:43:52,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:52,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:52,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:52,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:43:52,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 00:43:52,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:52,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 00:43:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:52,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:52,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:52,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:43:52,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:52,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 00:43:52,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:52,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:52,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:43:52,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 00:43:52,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:43:52,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:52,591 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 95 proven. 11 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-14 00:43:52,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [911225673] [2020-10-14 00:43:52,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:43:52,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:43:52,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816530902] [2020-10-14 00:43:52,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:43:52,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:43:52,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:43:52,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:43:52,594 INFO L87 Difference]: Start difference. First operand 2230 states and 2456 transitions. Second operand 7 states. [2020-10-14 00:43:53,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:43:53,721 INFO L93 Difference]: Finished difference Result 4885 states and 5453 transitions. [2020-10-14 00:43:53,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 00:43:53,721 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 160 [2020-10-14 00:43:53,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:43:53,735 INFO L225 Difference]: With dead ends: 4885 [2020-10-14 00:43:53,735 INFO L226 Difference]: Without dead ends: 2661 [2020-10-14 00:43:53,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-14 00:43:53,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2661 states. [2020-10-14 00:43:53,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2661 to 2647. [2020-10-14 00:43:53,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2647 states. [2020-10-14 00:43:53,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2647 states to 2647 states and 2969 transitions. [2020-10-14 00:43:53,845 INFO L78 Accepts]: Start accepts. Automaton has 2647 states and 2969 transitions. Word has length 160 [2020-10-14 00:43:53,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:43:53,845 INFO L479 AbstractCegarLoop]: Abstraction has 2647 states and 2969 transitions. [2020-10-14 00:43:53,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:43:53,846 INFO L276 IsEmpty]: Start isEmpty. Operand 2647 states and 2969 transitions. [2020-10-14 00:43:53,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-14 00:43:53,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:43:53,853 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:43:53,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 00:43:53,853 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:43:53,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:43:53,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1651568558, now seen corresponding path program 1 times [2020-10-14 00:43:53,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:43:53,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [30172161] [2020-10-14 00:43:53,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:43:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:53,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:54,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:55,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:55,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-10-14 00:43:55,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:43:55,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1399 [2020-10-14 00:43:55,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:55,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:55,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:55,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 00:43:55,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 00:43:55,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:55,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:43:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:55,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:55,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:55,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:43:55,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:55,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:43:55,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:55,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:55,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:43:55,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:55,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:43:55,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:55,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:43:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:55,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:55,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:55,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 00:43:55,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:55,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 00:43:55,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:55,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:55,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:43:55,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:55,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 00:43:55,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:55,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 00:43:55,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:55,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:55,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:55,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-14 00:43:55,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:55,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 00:43:55,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:55,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:55,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:55,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:43:55,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-14 00:43:55,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:55,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 00:43:55,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:55,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:55,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:55,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 00:43:55,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:55,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 00:43:55,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:55,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:55,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:43:55,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 00:43:55,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:43:55,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:55,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-14 00:43:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:55,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:55,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:55,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:43:55,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:55,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 00:43:55,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:55,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:55,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:43:55,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 00:43:55,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:43:55,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:55,733 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 107 proven. 21 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-14 00:43:55,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [30172161] [2020-10-14 00:43:55,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:43:55,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 00:43:55,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966628408] [2020-10-14 00:43:55,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 00:43:55,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:43:55,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 00:43:55,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 00:43:55,740 INFO L87 Difference]: Start difference. First operand 2647 states and 2969 transitions. Second operand 8 states. [2020-10-14 00:43:57,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:43:57,468 INFO L93 Difference]: Finished difference Result 5304 states and 5950 transitions. [2020-10-14 00:43:57,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 00:43:57,469 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 181 [2020-10-14 00:43:57,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:43:57,482 INFO L225 Difference]: With dead ends: 5304 [2020-10-14 00:43:57,482 INFO L226 Difference]: Without dead ends: 2663 [2020-10-14 00:43:57,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-14 00:43:57,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2663 states. [2020-10-14 00:43:57,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2663 to 2518. [2020-10-14 00:43:57,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2518 states. [2020-10-14 00:43:57,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2518 states to 2518 states and 2773 transitions. [2020-10-14 00:43:57,567 INFO L78 Accepts]: Start accepts. Automaton has 2518 states and 2773 transitions. Word has length 181 [2020-10-14 00:43:57,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:43:57,567 INFO L479 AbstractCegarLoop]: Abstraction has 2518 states and 2773 transitions. [2020-10-14 00:43:57,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 00:43:57,567 INFO L276 IsEmpty]: Start isEmpty. Operand 2518 states and 2773 transitions. [2020-10-14 00:43:57,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-14 00:43:57,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:43:57,574 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 00:43:57,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 00:43:57,575 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:43:57,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:43:57,575 INFO L82 PathProgramCache]: Analyzing trace with hash -513120558, now seen corresponding path program 1 times [2020-10-14 00:43:57,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:43:57,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [945247209] [2020-10-14 00:43:57,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:43:57,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:57,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:57,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:59,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:59,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-14 00:43:59,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:43:59,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1494 [2020-10-14 00:43:59,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:59,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:59,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:59,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-14 00:43:59,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 00:43:59,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:43:59,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:43:59,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:59,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:59,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:59,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:43:59,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:59,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:43:59,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:59,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:59,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:43:59,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:59,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:43:59,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:43:59,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:43:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:59,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:59,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:59,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 00:43:59,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:59,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 00:43:59,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:59,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:59,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:43:59,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:59,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 00:43:59,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:59,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 00:43:59,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:59,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:59,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:59,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-14 00:43:59,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:59,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 00:43:59,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:59,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:59,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:59,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:43:59,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-14 00:43:59,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:59,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-14 00:43:59,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:59,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:59,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:59,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 00:43:59,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:59,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 00:43:59,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:59,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:43:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 00:43:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:43:59,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:59,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-14 00:43:59,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:59,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:59,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:59,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:43:59,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:59,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 00:43:59,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:59,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:59,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:43:59,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 00:43:59,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:43:59,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 00:43:59,859 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 135 proven. 21 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-14 00:43:59,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [945247209] [2020-10-14 00:43:59,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:43:59,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 00:43:59,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978471197] [2020-10-14 00:43:59,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 00:43:59,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:43:59,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 00:43:59,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-14 00:43:59,863 INFO L87 Difference]: Start difference. First operand 2518 states and 2773 transitions. Second operand 8 states. [2020-10-14 00:44:01,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:44:01,748 INFO L93 Difference]: Finished difference Result 5545 states and 6376 transitions. [2020-10-14 00:44:01,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 00:44:01,749 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 195 [2020-10-14 00:44:01,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:44:01,766 INFO L225 Difference]: With dead ends: 5545 [2020-10-14 00:44:01,766 INFO L226 Difference]: Without dead ends: 3033 [2020-10-14 00:44:01,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2020-10-14 00:44:01,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3033 states. [2020-10-14 00:44:01,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3033 to 2526. [2020-10-14 00:44:01,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2526 states. [2020-10-14 00:44:01,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2526 states to 2526 states and 2778 transitions. [2020-10-14 00:44:01,881 INFO L78 Accepts]: Start accepts. Automaton has 2526 states and 2778 transitions. Word has length 195 [2020-10-14 00:44:01,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:44:01,882 INFO L479 AbstractCegarLoop]: Abstraction has 2526 states and 2778 transitions. [2020-10-14 00:44:01,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 00:44:01,882 INFO L276 IsEmpty]: Start isEmpty. Operand 2526 states and 2778 transitions. [2020-10-14 00:44:01,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-10-14 00:44:01,888 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:44:01,888 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 00:44:01,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 00:44:01,889 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:44:01,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:44:01,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1148549560, now seen corresponding path program 1 times [2020-10-14 00:44:01,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:44:01,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1803670580] [2020-10-14 00:44:01,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:44:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:44:01,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:02,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:02,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:06,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:44:06,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-10-14 00:44:06,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 00:44:06,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4171 [2020-10-14 00:44:06,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:44:06,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:44:06,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:44:06,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 00:44:06,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 00:44:06,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:44:06,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:44:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:44:06,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:06,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:44:06,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:44:06,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:44:06,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:44:06,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:44:06,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:44:06,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:44:06,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:44:06,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:44:06,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:44:06,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:44:06,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:44:06,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:06,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:44:06,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 00:44:06,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:44:06,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 00:44:06,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:44:06,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:44:06,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:44:06,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:44:06,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:44:06,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:44:06,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 00:44:06,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:44:06,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:06,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:44:06,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 00:44:06,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:44:06,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:44:06,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:44:06,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:44:06,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:44:06,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:44:06,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:44:06,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:44:06,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 00:44:06,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:44:06,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:06,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:44:06,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 00:44:06,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:44:06,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 00:44:06,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:44:06,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:44:06,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:44:06,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:44:06,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 00:44:06,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:44:06,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-14 00:44:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:44:06,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:06,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:44:06,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:44:06,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:44:06,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 00:44:06,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:44:06,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:44:06,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:44:06,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:44:06,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 00:44:06,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:44:06,441 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 136 proven. 2 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-10-14 00:44:06,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1803670580] [2020-10-14 00:44:06,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:44:06,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 00:44:06,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657909891] [2020-10-14 00:44:06,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 00:44:06,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:44:06,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 00:44:06,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 00:44:06,445 INFO L87 Difference]: Start difference. First operand 2526 states and 2778 transitions. Second operand 8 states. [2020-10-14 00:44:08,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:44:08,039 INFO L93 Difference]: Finished difference Result 5273 states and 5994 transitions. [2020-10-14 00:44:08,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 00:44:08,040 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 197 [2020-10-14 00:44:08,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:44:08,056 INFO L225 Difference]: With dead ends: 5273 [2020-10-14 00:44:08,056 INFO L226 Difference]: Without dead ends: 2612 [2020-10-14 00:44:08,065 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 00:44:08,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2612 states. [2020-10-14 00:44:08,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2612 to 2391. [2020-10-14 00:44:08,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2391 states. [2020-10-14 00:44:08,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2391 states to 2391 states and 2597 transitions. [2020-10-14 00:44:08,142 INFO L78 Accepts]: Start accepts. Automaton has 2391 states and 2597 transitions. Word has length 197 [2020-10-14 00:44:08,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:44:08,143 INFO L479 AbstractCegarLoop]: Abstraction has 2391 states and 2597 transitions. [2020-10-14 00:44:08,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 00:44:08,143 INFO L276 IsEmpty]: Start isEmpty. Operand 2391 states and 2597 transitions. [2020-10-14 00:44:08,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-10-14 00:44:08,150 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:44:08,151 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:44:08,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 00:44:08,151 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:44:08,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:44:08,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1888187350, now seen corresponding path program 1 times [2020-10-14 00:44:08,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:44:08,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861863920] [2020-10-14 00:44:08,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:44:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 00:44:08,210 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 00:44:08,210 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 00:44:08,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 00:44:08,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 12:44:08 BoogieIcfgContainer [2020-10-14 00:44:08,289 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 00:44:08,292 INFO L168 Benchmark]: Toolchain (without parser) took 39925.58 ms. Allocated memory was 146.8 MB in the beginning and 800.1 MB in the end (delta: 653.3 MB). Free memory was 101.3 MB in the beginning and 81.3 MB in the end (delta: 20.0 MB). Peak memory consumption was 673.3 MB. Max. memory is 7.1 GB. [2020-10-14 00:44:08,295 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-14 00:44:08,299 INFO L168 Benchmark]: CACSL2BoogieTranslator took 766.10 ms. Allocated memory was 146.8 MB in the beginning and 205.5 MB in the end (delta: 58.7 MB). Free memory was 101.1 MB in the beginning and 170.8 MB in the end (delta: -69.7 MB). Peak memory consumption was 31.9 MB. Max. memory is 7.1 GB. [2020-10-14 00:44:08,300 INFO L168 Benchmark]: Boogie Preprocessor took 113.23 ms. Allocated memory is still 205.5 MB. Free memory was 170.8 MB in the beginning and 165.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-10-14 00:44:08,301 INFO L168 Benchmark]: RCFGBuilder took 1181.57 ms. Allocated memory was 205.5 MB in the beginning and 239.1 MB in the end (delta: 33.6 MB). Free memory was 165.9 MB in the beginning and 179.9 MB in the end (delta: -14.0 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. [2020-10-14 00:44:08,306 INFO L168 Benchmark]: TraceAbstraction took 37858.13 ms. Allocated memory was 239.1 MB in the beginning and 800.1 MB in the end (delta: 561.0 MB). Free memory was 179.9 MB in the beginning and 81.3 MB in the end (delta: 98.6 MB). Peak memory consumption was 659.6 MB. Max. memory is 7.1 GB. [2020-10-14 00:44:08,315 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 766.10 ms. Allocated memory was 146.8 MB in the beginning and 205.5 MB in the end (delta: 58.7 MB). Free memory was 101.1 MB in the beginning and 170.8 MB in the end (delta: -69.7 MB). Peak memory consumption was 31.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.23 ms. Allocated memory is still 205.5 MB. Free memory was 170.8 MB in the beginning and 165.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1181.57 ms. Allocated memory was 205.5 MB in the beginning and 239.1 MB in the end (delta: 33.6 MB). Free memory was 165.9 MB in the beginning and 179.9 MB in the end (delta: -14.0 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 37858.13 ms. Allocated memory was 239.1 MB in the beginning and 800.1 MB in the end (delta: 561.0 MB). Free memory was 179.9 MB in the beginning and 81.3 MB in the end (delta: 98.6 MB). Peak memory consumption was 659.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 416]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L7] int a= 1; [L8] int d= 4; [L9] int e= 5; [L10] int f= 6; [L11] int c= 3; [L12] int b= 2; [L15] int u = 21; [L16] int v = 22; [L17] int w = 23; [L18] int x = 24; [L19] int y = 25; [L20] int z = 26; [L22] int a17 = 1; [L23] int a7 = 0; [L24] int a20 = 1; [L25] int a8 = 15; [L26] int a12 = 8; [L27] int a16 = 5; [L28] int a21 = 1; [L580] int output = -1; [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L178] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L273] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L278] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L286] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L292] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L299] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L306] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L312] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L316] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L318] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L324] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L329] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L333] COND TRUE ((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15))) [L334] a17 = 0 [L335] a16 = 4 [L336] return 21; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L178] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND TRUE (((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4)) [L269] a20 = 0 [L270] a17 = 1 [L271] a16 = 6 [L272] return 21; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND TRUE (((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6)) [L63] a17 = 0 [L64] return 26; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND TRUE (((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8)) [L55] a7 = 0 [L56] a20 = 1 [L57] a21 = 1 [L58] a16 = 4 [L59] a17 = 1 [L60] a8 = 13 [L61] return -1; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L178] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L273] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L278] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L286] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L292] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L299] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L306] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L312] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L316] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L318] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L324] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L329] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L333] COND FALSE !(((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15)))) [L337] COND FALSE !((!(a21==1)&&((a20==1)&&(((a12==8)&&((a8==13)&&((((a16==5)&&!(a17==1))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==2))))&&(a7==1))))) [L345] COND FALSE !(((a7==1)&&((a12==8)&&((((a20==1)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||((a16==4)&&!(a17==1))))&&(input==4)))&&(a8==13))&&!(a21==1))))) [L353] COND FALSE !(((a21==1)&&((((!(a7==1)&&((a8==15)&&(!(a20==1)&&(input==4))))&&(a17==1))&&(a16==5))&&(a12==8)))) [L355] COND FALSE !((((!(a7==1)&&((!(a20==1)&&((a21==1)&&((input==3)&&(a17==1))))&&(a8==15)))&&(a12==8))&&(a16==5))) [L361] COND FALSE !(((((!(a17==1)&&(!(a20==1)&&((a8==15)&&((input==1)&&(a16==5)))))&&(a12==8))&&(a21==1))&&!(a7==1))) [L363] COND FALSE !(((((a21==1)&&((a8==15)&&(((a16==5)&&((a12==8)&&(input==1)))&&(a17==1))))&&!(a7==1))&&!(a20==1))) [L365] COND FALSE !(((!(a21==1)&&((a20==1)&&((((a8==13)&&((a7==1)&&(input==5)))&&(a17==1))&&(a12==8))))&&(a16==5))) [L372] COND FALSE !((((!(a7==1)&&((a21==1)&&((((input==6)&&(a20==1))&&(a8==15))&&!(a17==1))))&&(a12==8))&&(a16==4))) [L377] COND FALSE !(((((a20==1)&&(((!(a21==1)&&((a7==1)&&(input==1)))&&(a8==13))&&(a17==1)))&&(a12==8))&&(a16==5))) [L382] COND FALSE !(((a12==8)&&((input==5)&&((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==15))&&(a16==6))&&(a21==1))||(!(a21==1)&&((a16==4)&&(((a20==1)&&((a7==1)&&(a17==1)))&&(a8==13)))))))) [L391] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L394] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L397] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==4))&&(a21==1))) [L400] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==6))&&(a21==1))) [L403] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L406] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==5))&&(a21==1))) [L409] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1))) [L412] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L415] COND TRUE (((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==4))&&(a21==1)) [L416] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 37.7s, OverallIterations: 12, TraceHistogramMax: 5, AutomataDifference: 16.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 326 SDtfs, 4806 SDslu, 421 SDs, 0 SdLazy, 9129 SolverSat, 1278 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 196 GetRequests, 94 SyntacticMatches, 4 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2647occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 1263 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 19.2s InterpolantComputationTime, 1701 NumberOfCodeBlocks, 1701 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1465 ConstructedInterpolants, 0 QuantifiedInterpolants, 774856 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 786/850 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...