/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label50.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 20:54:12,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 20:54:12,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 20:54:12,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 20:54:12,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 20:54:12,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 20:54:12,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 20:54:12,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 20:54:12,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 20:54:12,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 20:54:12,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 20:54:12,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 20:54:12,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 20:54:12,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 20:54:12,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 20:54:12,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 20:54:12,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 20:54:12,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 20:54:12,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 20:54:13,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 20:54:13,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 20:54:13,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 20:54:13,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 20:54:13,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 20:54:13,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 20:54:13,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 20:54:13,008 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 20:54:13,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 20:54:13,009 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 20:54:13,010 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 20:54:13,010 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 20:54:13,011 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 20:54:13,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 20:54:13,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 20:54:13,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 20:54:13,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 20:54:13,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 20:54:13,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 20:54:13,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 20:54:13,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 20:54:13,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 20:54:13,017 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 20:54:13,041 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 20:54:13,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 20:54:13,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 20:54:13,042 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 20:54:13,043 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 20:54:13,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 20:54:13,043 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 20:54:13,043 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 20:54:13,044 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 20:54:13,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 20:54:13,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 20:54:13,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 20:54:13,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 20:54:13,044 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 20:54:13,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 20:54:13,045 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 20:54:13,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 20:54:13,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 20:54:13,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 20:54:13,046 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 20:54:13,046 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 20:54:13,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 20:54:13,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 20:54:13,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 20:54:13,047 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 20:54:13,047 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 20:54:13,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 20:54:13,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 20:54:13,047 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 20:54:13,048 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 20:54:13,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 20:54:13,351 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 20:54:13,355 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 20:54:13,358 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 20:54:13,359 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 20:54:13,359 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label50.c [2020-10-14 20:54:13,440 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83fc6fdcf/9ff30064305b411b8771ec9ed4843cf1/FLAG1b7ed8aa0 [2020-10-14 20:54:14,035 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 20:54:14,036 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label50.c [2020-10-14 20:54:14,048 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83fc6fdcf/9ff30064305b411b8771ec9ed4843cf1/FLAG1b7ed8aa0 [2020-10-14 20:54:14,299 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83fc6fdcf/9ff30064305b411b8771ec9ed4843cf1 [2020-10-14 20:54:14,309 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 20:54:14,311 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 20:54:14,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 20:54:14,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 20:54:14,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 20:54:14,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:54:14" (1/1) ... [2020-10-14 20:54:14,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a5c20e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:14, skipping insertion in model container [2020-10-14 20:54:14,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:54:14" (1/1) ... [2020-10-14 20:54:14,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 20:54:14,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 20:54:14,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 20:54:14,966 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 20:54:15,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 20:54:15,184 INFO L208 MainTranslator]: Completed translation [2020-10-14 20:54:15,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:15 WrapperNode [2020-10-14 20:54:15,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 20:54:15,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 20:54:15,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 20:54:15,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 20:54:15,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:15" (1/1) ... [2020-10-14 20:54:15,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:15" (1/1) ... [2020-10-14 20:54:15,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:15" (1/1) ... [2020-10-14 20:54:15,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:15" (1/1) ... [2020-10-14 20:54:15,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:15" (1/1) ... [2020-10-14 20:54:15,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:15" (1/1) ... [2020-10-14 20:54:15,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:15" (1/1) ... [2020-10-14 20:54:15,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 20:54:15,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 20:54:15,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 20:54:15,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 20:54:15,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:15" (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 20:54:15,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 20:54:15,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 20:54:15,385 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 20:54:15,385 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 20:54:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 20:54:15,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 20:54:15,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 20:54:15,387 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 20:54:15,387 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 20:54:15,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 20:54:15,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 20:54:16,673 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 20:54:16,674 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 20:54:16,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:54:16 BoogieIcfgContainer [2020-10-14 20:54:16,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 20:54:16,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 20:54:16,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 20:54:16,685 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 20:54:16,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:54:14" (1/3) ... [2020-10-14 20:54:16,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d31dd93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:54:16, skipping insertion in model container [2020-10-14 20:54:16,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:15" (2/3) ... [2020-10-14 20:54:16,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d31dd93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:54:16, skipping insertion in model container [2020-10-14 20:54:16,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:54:16" (3/3) ... [2020-10-14 20:54:16,689 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label50.c [2020-10-14 20:54:16,700 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 20:54:16,708 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 20:54:16,723 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 20:54:16,750 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 20:54:16,750 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 20:54:16,751 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 20:54:16,751 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 20:54:16,751 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 20:54:16,751 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 20:54:16,751 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 20:54:16,751 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 20:54:16,775 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-10-14 20:54:16,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-14 20:54:16,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:16,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:54:16,784 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:16,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:16,791 INFO L82 PathProgramCache]: Analyzing trace with hash 397772918, now seen corresponding path program 1 times [2020-10-14 20:54:16,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:16,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [164536142] [2020-10-14 20:54:16,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:16,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:17,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:17,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 20:54:17,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:17,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-10-14 20:54:17,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:17,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:17,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 20:54:17,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:54:17,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 20:54:17,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 20:54:17,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:54:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:17,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:17,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:17,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:54:17,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:17,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 20:54:17,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:17,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:17,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:17,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:17,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:54:17,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:17,346 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 20:54:17,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [164536142] [2020-10-14 20:54:17,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 20:54:17,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 20:54:17,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121997427] [2020-10-14 20:54:17,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 20:54:17,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:54:17,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 20:54:17,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 20:54:17,375 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 4 states. [2020-10-14 20:54:18,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:54:18,869 INFO L93 Difference]: Finished difference Result 581 states and 1007 transitions. [2020-10-14 20:54:18,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:54:18,871 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-14 20:54:18,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:54:18,887 INFO L225 Difference]: With dead ends: 581 [2020-10-14 20:54:18,887 INFO L226 Difference]: Without dead ends: 302 [2020-10-14 20:54:18,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:54:18,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-10-14 20:54:18,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 296. [2020-10-14 20:54:18,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-10-14 20:54:18,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 448 transitions. [2020-10-14 20:54:18,970 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 448 transitions. Word has length 15 [2020-10-14 20:54:18,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:54:18,970 INFO L479 AbstractCegarLoop]: Abstraction has 296 states and 448 transitions. [2020-10-14 20:54:18,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 20:54:18,971 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 448 transitions. [2020-10-14 20:54:18,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-14 20:54:18,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:18,975 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:54:18,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 20:54:18,976 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:18,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:18,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1068134291, now seen corresponding path program 1 times [2020-10-14 20:54:18,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:18,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [71208380] [2020-10-14 20:54:18,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:19,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:19,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:19,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:19,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:19,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:19,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 20:54:19,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:54:19,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 884 [2020-10-14 20:54:19,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:19,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:19,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 20:54:19,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:54:19,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 20:54:19,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:19,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:54:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:19,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:19,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:19,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:54:19,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:19,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 20:54:19,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:19,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:19,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:19,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:19,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:54:19,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:19,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:54:20,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:20,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:20,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:20,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 20:54:20,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:20,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-14 20:54:20,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:20,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:20,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:20,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:54:20,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 20:54:20,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:20,185 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:54:20,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [71208380] [2020-10-14 20:54:20,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 20:54:20,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 20:54:20,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003856560] [2020-10-14 20:54:20,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:54:20,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:54:20,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:54:20,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:54:20,189 INFO L87 Difference]: Start difference. First operand 296 states and 448 transitions. Second operand 7 states. [2020-10-14 20:54:21,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:54:21,640 INFO L93 Difference]: Finished difference Result 753 states and 1161 transitions. [2020-10-14 20:54:21,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 20:54:21,641 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2020-10-14 20:54:21,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:54:21,645 INFO L225 Difference]: With dead ends: 753 [2020-10-14 20:54:21,646 INFO L226 Difference]: Without dead ends: 463 [2020-10-14 20:54:21,648 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 20:54:21,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2020-10-14 20:54:21,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 445. [2020-10-14 20:54:21,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 445 states. [2020-10-14 20:54:21,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 626 transitions. [2020-10-14 20:54:21,685 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 626 transitions. Word has length 88 [2020-10-14 20:54:21,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:54:21,686 INFO L479 AbstractCegarLoop]: Abstraction has 445 states and 626 transitions. [2020-10-14 20:54:21,686 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:54:21,686 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 626 transitions. [2020-10-14 20:54:21,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-14 20:54:21,690 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:21,690 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:54:21,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 20:54:21,691 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:21,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:21,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1363459929, now seen corresponding path program 1 times [2020-10-14 20:54:21,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:21,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253295876] [2020-10-14 20:54:21,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:21,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:21,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:21,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 20:54:21,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:21,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-14 20:54:21,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:21,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:21,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:21,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-14 20:54:21,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 20:54:21,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:21,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:54:21,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:21,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:21,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:21,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:54:21,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:21,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 20:54:21,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:21,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:21,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:54:21,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:21,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:54:21,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:21,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:54:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:22,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:22,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:22,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 20:54:22,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:22,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 20:54:22,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:22,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:22,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:22,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:22,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 20:54:22,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:22,117 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:54:22,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1253295876] [2020-10-14 20:54:22,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:54:22,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 20:54:22,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408247252] [2020-10-14 20:54:22,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 20:54:22,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:54:22,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 20:54:22,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:54:22,120 INFO L87 Difference]: Start difference. First operand 445 states and 626 transitions. Second operand 5 states. [2020-10-14 20:54:23,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:54:23,381 INFO L93 Difference]: Finished difference Result 1337 states and 1930 transitions. [2020-10-14 20:54:23,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:54:23,382 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 94 [2020-10-14 20:54:23,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:54:23,389 INFO L225 Difference]: With dead ends: 1337 [2020-10-14 20:54:23,389 INFO L226 Difference]: Without dead ends: 898 [2020-10-14 20:54:23,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:54:23,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2020-10-14 20:54:23,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 888. [2020-10-14 20:54:23,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 888 states. [2020-10-14 20:54:23,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 1164 transitions. [2020-10-14 20:54:23,441 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 1164 transitions. Word has length 94 [2020-10-14 20:54:23,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:54:23,442 INFO L479 AbstractCegarLoop]: Abstraction has 888 states and 1164 transitions. [2020-10-14 20:54:23,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 20:54:23,442 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 1164 transitions. [2020-10-14 20:54:23,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-14 20:54:23,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:23,447 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:54:23,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 20:54:23,448 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:23,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:23,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1642796538, now seen corresponding path program 1 times [2020-10-14 20:54:23,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:23,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [298142083] [2020-10-14 20:54:23,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:23,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:23,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:23,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:23,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:24,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:24,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-14 20:54:24,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:54:24,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 735 [2020-10-14 20:54:24,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:24,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:24,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 20:54:24,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:54:24,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 20:54:24,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-14 20:54:24,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:54:24,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:24,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:24,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:24,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:54:24,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:24,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 20:54:24,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:24,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:24,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:24,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:24,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:54:24,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:24,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:54:24,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:24,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:24,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:24,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 20:54:24,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:24,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-14 20:54:24,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:24,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:24,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:24,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:54:24,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 20:54:24,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:24,494 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:54:24,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [298142083] [2020-10-14 20:54:24,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 20:54:24,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 20:54:24,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831527576] [2020-10-14 20:54:24,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:54:24,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:54:24,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:54:24,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:54:24,497 INFO L87 Difference]: Start difference. First operand 888 states and 1164 transitions. Second operand 7 states. [2020-10-14 20:54:25,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:54:25,953 INFO L93 Difference]: Finished difference Result 2015 states and 2969 transitions. [2020-10-14 20:54:25,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 20:54:25,954 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 105 [2020-10-14 20:54:25,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:54:25,966 INFO L225 Difference]: With dead ends: 2015 [2020-10-14 20:54:25,966 INFO L226 Difference]: Without dead ends: 1133 [2020-10-14 20:54:25,969 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-14 20:54:25,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2020-10-14 20:54:26,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 898. [2020-10-14 20:54:26,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-10-14 20:54:26,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1195 transitions. [2020-10-14 20:54:26,028 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1195 transitions. Word has length 105 [2020-10-14 20:54:26,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:54:26,029 INFO L479 AbstractCegarLoop]: Abstraction has 898 states and 1195 transitions. [2020-10-14 20:54:26,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:54:26,029 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1195 transitions. [2020-10-14 20:54:26,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-14 20:54:26,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:26,034 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:54:26,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 20:54:26,035 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:26,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:26,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1927403126, now seen corresponding path program 1 times [2020-10-14 20:54:26,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:26,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1007372994] [2020-10-14 20:54:26,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:26,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:26,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:26,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:26,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 20:54:26,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:54:26,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 607 [2020-10-14 20:54:26,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:26,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:26,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 20:54:26,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:54:26,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 20:54:26,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:26,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:54:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:26,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:26,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:26,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:54:26,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:26,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 20:54:26,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:26,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:26,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:26,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:26,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:54:26,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:26,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:54:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:26,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:26,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:26,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 20:54:26,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:26,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-14 20:54:26,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:26,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:26,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:26,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:54:26,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-14 20:54:26,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:26,993 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:54:26,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1007372994] [2020-10-14 20:54:26,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 20:54:26,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 20:54:26,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605889274] [2020-10-14 20:54:26,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:54:26,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:54:26,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:54:26,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:54:26,995 INFO L87 Difference]: Start difference. First operand 898 states and 1195 transitions. Second operand 7 states. [2020-10-14 20:54:28,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:54:28,400 INFO L93 Difference]: Finished difference Result 1967 states and 2719 transitions. [2020-10-14 20:54:28,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 20:54:28,404 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2020-10-14 20:54:28,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:54:28,411 INFO L225 Difference]: With dead ends: 1967 [2020-10-14 20:54:28,411 INFO L226 Difference]: Without dead ends: 1218 [2020-10-14 20:54:28,414 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 20:54:28,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2020-10-14 20:54:28,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 1047. [2020-10-14 20:54:28,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1047 states. [2020-10-14 20:54:28,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1272 transitions. [2020-10-14 20:54:28,475 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1272 transitions. Word has length 113 [2020-10-14 20:54:28,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:54:28,476 INFO L479 AbstractCegarLoop]: Abstraction has 1047 states and 1272 transitions. [2020-10-14 20:54:28,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:54:28,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1272 transitions. [2020-10-14 20:54:28,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-14 20:54:28,486 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:28,486 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:54:28,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 20:54:28,486 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:28,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:28,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1385846678, now seen corresponding path program 1 times [2020-10-14 20:54:28,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:28,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [202949286] [2020-10-14 20:54:28,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:28,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:28,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:29,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:29,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:29,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-14 20:54:29,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:54:29,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 729 [2020-10-14 20:54:29,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:29,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:29,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:29,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 20:54:29,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 20:54:29,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:29,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:54:29,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:29,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:29,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:29,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:54:29,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:29,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 20:54:29,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:29,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:29,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:54:29,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:29,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:54:29,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:29,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:54:29,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:29,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:29,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:29,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 20:54:29,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:29,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 20:54:29,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:29,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:29,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:29,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:29,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 20:54:29,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:29,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 20:54:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:29,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:29,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:29,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 20:54:29,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:29,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-14 20:54:29,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:29,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:29,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:29,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:54:29,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 20:54:29,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:29,684 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 83 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 20:54:29,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [202949286] [2020-10-14 20:54:29,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:54:29,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:54:29,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37743179] [2020-10-14 20:54:29,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:54:29,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:54:29,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:54:29,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:54:29,687 INFO L87 Difference]: Start difference. First operand 1047 states and 1272 transitions. Second operand 7 states. [2020-10-14 20:54:30,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:54:30,932 INFO L93 Difference]: Finished difference Result 2261 states and 2852 transitions. [2020-10-14 20:54:30,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 20:54:30,933 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 175 [2020-10-14 20:54:30,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:54:30,943 INFO L225 Difference]: With dead ends: 2261 [2020-10-14 20:54:30,943 INFO L226 Difference]: Without dead ends: 1363 [2020-10-14 20:54:30,947 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 20:54:30,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2020-10-14 20:54:30,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1343. [2020-10-14 20:54:30,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1343 states. [2020-10-14 20:54:30,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1343 states to 1343 states and 1657 transitions. [2020-10-14 20:54:30,993 INFO L78 Accepts]: Start accepts. Automaton has 1343 states and 1657 transitions. Word has length 175 [2020-10-14 20:54:30,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:54:30,993 INFO L479 AbstractCegarLoop]: Abstraction has 1343 states and 1657 transitions. [2020-10-14 20:54:30,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:54:30,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1343 states and 1657 transitions. [2020-10-14 20:54:30,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-10-14 20:54:30,997 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:30,998 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:54:30,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 20:54:30,998 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:30,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:30,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1728810222, now seen corresponding path program 1 times [2020-10-14 20:54:30,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:30,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1789601881] [2020-10-14 20:54:30,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:31,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:31,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:31,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:31,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-10-14 20:54:31,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:54:31,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 792 [2020-10-14 20:54:31,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:31,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:31,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:31,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 20:54:31,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 20:54:31,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:31,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:54:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:31,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:31,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:31,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:54:31,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:31,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 20:54:31,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:31,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:31,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:54:31,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:31,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:54:31,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:31,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:54:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:31,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:32,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:32,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 20:54:32,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:32,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 20:54:32,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:32,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:32,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:32,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:32,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 20:54:32,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:32,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 20:54:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:32,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:32,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:32,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 20:54:32,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:32,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-14 20:54:32,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:32,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:32,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:32,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:54:32,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 20:54:32,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:32,395 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 83 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 20:54:32,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1789601881] [2020-10-14 20:54:32,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:54:32,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:54:32,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388856972] [2020-10-14 20:54:32,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:54:32,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:54:32,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:54:32,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:54:32,399 INFO L87 Difference]: Start difference. First operand 1343 states and 1657 transitions. Second operand 7 states. [2020-10-14 20:54:33,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:54:33,843 INFO L93 Difference]: Finished difference Result 2575 states and 3282 transitions. [2020-10-14 20:54:33,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 20:54:33,844 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 221 [2020-10-14 20:54:33,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:54:33,852 INFO L225 Difference]: With dead ends: 2575 [2020-10-14 20:54:33,853 INFO L226 Difference]: Without dead ends: 1381 [2020-10-14 20:54:33,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 20:54:33,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2020-10-14 20:54:33,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 1347. [2020-10-14 20:54:33,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1347 states. [2020-10-14 20:54:33,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 1605 transitions. [2020-10-14 20:54:33,898 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 1605 transitions. Word has length 221 [2020-10-14 20:54:33,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:54:33,898 INFO L479 AbstractCegarLoop]: Abstraction has 1347 states and 1605 transitions. [2020-10-14 20:54:33,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:54:33,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 1605 transitions. [2020-10-14 20:54:33,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-10-14 20:54:33,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:33,903 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:54:33,903 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 20:54:33,903 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:33,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:33,904 INFO L82 PathProgramCache]: Analyzing trace with hash 539367001, now seen corresponding path program 1 times [2020-10-14 20:54:33,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:33,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [571852625] [2020-10-14 20:54:33,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:33,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:33,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:34,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:34,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:35,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:35,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-14 20:54:35,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:54:35,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1173 [2020-10-14 20:54:35,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:35,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:35,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:35,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-14 20:54:35,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 20:54:35,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:35,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:54:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:35,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:35,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:35,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:54:35,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:35,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 20:54:35,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:35,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:35,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:54:35,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:35,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:54:35,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:35,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:54:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:35,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:35,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:35,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 20:54:35,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:35,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 20:54:35,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:35,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:35,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:35,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:35,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 20:54:35,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:35,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 20:54:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:35,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:35,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:35,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 20:54:35,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:35,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-14 20:54:35,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:35,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:35,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:35,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:54:35,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 20:54:35,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:35,640 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 92 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 20:54:35,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [571852625] [2020-10-14 20:54:35,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:54:35,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:54:35,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146841938] [2020-10-14 20:54:35,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:54:35,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:54:35,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:54:35,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:54:35,643 INFO L87 Difference]: Start difference. First operand 1347 states and 1605 transitions. Second operand 7 states. [2020-10-14 20:54:37,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:54:37,584 INFO L93 Difference]: Finished difference Result 3272 states and 3928 transitions. [2020-10-14 20:54:37,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 20:54:37,588 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 230 [2020-10-14 20:54:37,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:54:37,597 INFO L225 Difference]: With dead ends: 3272 [2020-10-14 20:54:37,597 INFO L226 Difference]: Without dead ends: 1776 [2020-10-14 20:54:37,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 20:54:37,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2020-10-14 20:54:37,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1192. [2020-10-14 20:54:37,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1192 states. [2020-10-14 20:54:37,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1349 transitions. [2020-10-14 20:54:37,646 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1349 transitions. Word has length 230 [2020-10-14 20:54:37,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:54:37,646 INFO L479 AbstractCegarLoop]: Abstraction has 1192 states and 1349 transitions. [2020-10-14 20:54:37,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:54:37,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1349 transitions. [2020-10-14 20:54:37,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2020-10-14 20:54:37,651 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:37,651 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:54:37,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 20:54:37,652 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:37,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:37,652 INFO L82 PathProgramCache]: Analyzing trace with hash -744935455, now seen corresponding path program 1 times [2020-10-14 20:54:37,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:37,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1791897420] [2020-10-14 20:54:37,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:37,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:38,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:38,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:38,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 278 [2020-10-14 20:54:38,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:54:38,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1103 [2020-10-14 20:54:38,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:38,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:38,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:38,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-14 20:54:38,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 20:54:38,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 20:54:38,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:54:38,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:38,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:38,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:38,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:54:38,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:38,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 20:54:38,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:38,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:38,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:54:38,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:38,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:54:38,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 20:54:38,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:54:38,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:38,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:39,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:39,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 20:54:39,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:39,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 20:54:39,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:39,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:39,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:39,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:39,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 20:54:39,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:39,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 20:54:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:39,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:39,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:39,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 20:54:39,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:39,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-10-14 20:54:39,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:39,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:39,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:39,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:54:39,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 20:54:39,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:39,557 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 128 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 20:54:39,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1791897420] [2020-10-14 20:54:39,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:54:39,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:54:39,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175344132] [2020-10-14 20:54:39,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:54:39,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:54:39,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:54:39,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:54:39,569 INFO L87 Difference]: Start difference. First operand 1192 states and 1349 transitions. Second operand 7 states. [2020-10-14 20:54:41,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:54:41,071 INFO L93 Difference]: Finished difference Result 3008 states and 3480 transitions. [2020-10-14 20:54:41,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 20:54:41,073 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 266 [2020-10-14 20:54:41,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:54:41,082 INFO L225 Difference]: With dead ends: 3008 [2020-10-14 20:54:41,082 INFO L226 Difference]: Without dead ends: 1965 [2020-10-14 20:54:41,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 20:54:41,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2020-10-14 20:54:41,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1800. [2020-10-14 20:54:41,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1800 states. [2020-10-14 20:54:41,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 2045 transitions. [2020-10-14 20:54:41,132 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 2045 transitions. Word has length 266 [2020-10-14 20:54:41,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:54:41,133 INFO L479 AbstractCegarLoop]: Abstraction has 1800 states and 2045 transitions. [2020-10-14 20:54:41,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:54:41,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 2045 transitions. [2020-10-14 20:54:41,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-10-14 20:54:41,138 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:41,138 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:54:41,138 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 20:54:41,139 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:41,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:41,139 INFO L82 PathProgramCache]: Analyzing trace with hash -419292758, now seen corresponding path program 1 times [2020-10-14 20:54:41,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:41,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [984562244] [2020-10-14 20:54:41,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:41,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:41,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:41,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:41,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 283 [2020-10-14 20:54:41,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:41,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 321 [2020-10-14 20:54:41,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:41,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:41,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:41,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 268 [2020-10-14 20:54:41,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 20:54:41,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:41,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:54:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:41,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:41,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:41,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:54:41,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:41,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 20:54:41,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:41,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:41,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:54:41,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:41,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:54:41,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:41,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:54:41,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:41,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:41,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:41,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 20:54:41,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:41,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 20:54:41,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:41,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:41,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:54:41,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:41,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:54:41,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:41,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 20:54:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:41,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:41,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:41,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-14 20:54:41,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:41,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-14 20:54:41,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:41,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:41,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:41,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:41,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 20:54:41,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 20:54:42,071 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-14 20:54:42,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [984562244] [2020-10-14 20:54:42,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:54:42,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 20:54:42,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540300868] [2020-10-14 20:54:42,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 20:54:42,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:54:42,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 20:54:42,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:54:42,074 INFO L87 Difference]: Start difference. First operand 1800 states and 2045 transitions. Second operand 5 states. [2020-10-14 20:54:43,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:54:43,333 INFO L93 Difference]: Finished difference Result 3896 states and 4504 transitions. [2020-10-14 20:54:43,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:54:43,335 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 271 [2020-10-14 20:54:43,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:54:43,347 INFO L225 Difference]: With dead ends: 3896 [2020-10-14 20:54:43,348 INFO L226 Difference]: Without dead ends: 2092 [2020-10-14 20:54:43,354 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:54:43,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2092 states. [2020-10-14 20:54:43,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2092 to 2086. [2020-10-14 20:54:43,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2086 states. [2020-10-14 20:54:43,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2086 states to 2086 states and 2361 transitions. [2020-10-14 20:54:43,433 INFO L78 Accepts]: Start accepts. Automaton has 2086 states and 2361 transitions. Word has length 271 [2020-10-14 20:54:43,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:54:43,434 INFO L479 AbstractCegarLoop]: Abstraction has 2086 states and 2361 transitions. [2020-10-14 20:54:43,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 20:54:43,434 INFO L276 IsEmpty]: Start isEmpty. Operand 2086 states and 2361 transitions. [2020-10-14 20:54:43,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2020-10-14 20:54:43,445 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:43,445 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:54:43,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 20:54:43,446 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:43,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:43,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1813224930, now seen corresponding path program 1 times [2020-10-14 20:54:43,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:43,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1778638811] [2020-10-14 20:54:43,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:43,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:43,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:43,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:44,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:44,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:45,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:45,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 289 [2020-10-14 20:54:45,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 20:54:45,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2420 [2020-10-14 20:54:45,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:45,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:45,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 20:54:45,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-14 20:54:45,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-14 20:54:45,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:46,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:54:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:46,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:46,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:46,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:54:46,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:46,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 20:54:46,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:46,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:46,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:54:46,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:46,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:54:46,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:46,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:54:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:46,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:46,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:46,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 20:54:46,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:46,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 20:54:46,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:46,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:46,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:46,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:46,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 20:54:46,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:46,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 20:54:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:46,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:46,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:46,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 20:54:46,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:46,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 20:54:46,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:46,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:46,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:46,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:54:46,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 20:54:46,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:46,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-14 20:54:46,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:46,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:46,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:46,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 20:54:46,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:46,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 20:54:46,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:46,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:46,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:46,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:54:46,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 20:54:46,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:46,760 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 163 proven. 71 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-14 20:54:46,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1778638811] [2020-10-14 20:54:46,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:54:46,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 20:54:46,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971796422] [2020-10-14 20:54:46,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 20:54:46,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:54:46,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 20:54:46,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 20:54:46,764 INFO L87 Difference]: Start difference. First operand 2086 states and 2361 transitions. Second operand 8 states. [2020-10-14 20:54:48,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:54:48,350 INFO L93 Difference]: Finished difference Result 4343 states and 4948 transitions. [2020-10-14 20:54:48,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 20:54:48,351 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 275 [2020-10-14 20:54:48,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:54:48,361 INFO L225 Difference]: With dead ends: 4343 [2020-10-14 20:54:48,362 INFO L226 Difference]: Without dead ends: 2406 [2020-10-14 20:54:48,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-14 20:54:48,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2020-10-14 20:54:48,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 2382. [2020-10-14 20:54:48,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2382 states. [2020-10-14 20:54:48,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 2677 transitions. [2020-10-14 20:54:48,423 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 2677 transitions. Word has length 275 [2020-10-14 20:54:48,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:54:48,424 INFO L479 AbstractCegarLoop]: Abstraction has 2382 states and 2677 transitions. [2020-10-14 20:54:48,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 20:54:48,424 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 2677 transitions. [2020-10-14 20:54:48,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2020-10-14 20:54:48,430 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:48,430 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:54:48,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 20:54:48,431 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:48,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:48,432 INFO L82 PathProgramCache]: Analyzing trace with hash -528765271, now seen corresponding path program 1 times [2020-10-14 20:54:48,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:48,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1978713583] [2020-10-14 20:54:48,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:48,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:48,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:49,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:49,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:49,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-14 20:54:49,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:54:49,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1458 [2020-10-14 20:54:49,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:49,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:49,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:49,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-14 20:54:49,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 20:54:49,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:50,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:54:50,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:50,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:50,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:50,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:54:50,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:50,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 20:54:50,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:50,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:50,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:54:50,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:50,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:54:50,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:50,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:54:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:50,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:50,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:50,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 20:54:50,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:50,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 20:54:50,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:50,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:50,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:54:50,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:50,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:54:50,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:50,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 20:54:50,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:50,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:50,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:50,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 20:54:50,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:50,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 20:54:50,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:50,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:50,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:50,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:50,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 20:54:50,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:50,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 20:54:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:50,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:50,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:50,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 20:54:50,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:50,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 20:54:50,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:50,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:50,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:50,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:54:50,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 20:54:50,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:50,472 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 169 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-14 20:54:50,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1978713583] [2020-10-14 20:54:50,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:54:50,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:54:50,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273237896] [2020-10-14 20:54:50,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:54:50,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:54:50,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:54:50,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:54:50,475 INFO L87 Difference]: Start difference. First operand 2382 states and 2677 transitions. Second operand 7 states. [2020-10-14 20:54:51,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:54:51,942 INFO L93 Difference]: Finished difference Result 4776 states and 5412 transitions. [2020-10-14 20:54:51,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 20:54:51,942 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 288 [2020-10-14 20:54:51,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:54:51,952 INFO L225 Difference]: With dead ends: 4776 [2020-10-14 20:54:51,952 INFO L226 Difference]: Without dead ends: 2543 [2020-10-14 20:54:51,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 20:54:51,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2543 states. [2020-10-14 20:54:52,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2543 to 2537. [2020-10-14 20:54:52,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2537 states. [2020-10-14 20:54:52,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2537 states to 2537 states and 2850 transitions. [2020-10-14 20:54:52,015 INFO L78 Accepts]: Start accepts. Automaton has 2537 states and 2850 transitions. Word has length 288 [2020-10-14 20:54:52,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:54:52,015 INFO L479 AbstractCegarLoop]: Abstraction has 2537 states and 2850 transitions. [2020-10-14 20:54:52,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:54:52,016 INFO L276 IsEmpty]: Start isEmpty. Operand 2537 states and 2850 transitions. [2020-10-14 20:54:52,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2020-10-14 20:54:52,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:52,022 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 20:54:52,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 20:54:52,023 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:52,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:52,023 INFO L82 PathProgramCache]: Analyzing trace with hash 450840557, now seen corresponding path program 1 times [2020-10-14 20:54:52,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:52,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [914735331] [2020-10-14 20:54:52,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:52,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:52,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:52,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:52,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 300 [2020-10-14 20:54:52,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:52,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-10-14 20:54:52,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:52,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:52,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:52,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 285 [2020-10-14 20:54:52,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 20:54:52,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:52,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:54:52,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:52,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:52,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:52,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:54:52,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:52,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 20:54:52,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:52,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:52,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:54:52,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:52,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:54:52,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:52,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:54:52,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:52,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:52,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:52,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 20:54:52,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:52,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 20:54:52,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:52,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:52,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:54:52,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:52,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:54:52,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:52,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-14 20:54:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:52,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:52,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:52,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 20:54:52,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:52,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 20:54:52,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:52,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:52,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:52,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:52,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-14 20:54:52,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:52,766 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2020-10-14 20:54:52,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [914735331] [2020-10-14 20:54:52,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:54:52,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 20:54:52,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472111161] [2020-10-14 20:54:52,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 20:54:52,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:54:52,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 20:54:52,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:54:52,768 INFO L87 Difference]: Start difference. First operand 2537 states and 2850 transitions. Second operand 5 states. [2020-10-14 20:54:53,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:54:53,948 INFO L93 Difference]: Finished difference Result 5505 states and 6228 transitions. [2020-10-14 20:54:53,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:54:53,949 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 288 [2020-10-14 20:54:53,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:54:53,960 INFO L225 Difference]: With dead ends: 5505 [2020-10-14 20:54:53,960 INFO L226 Difference]: Without dead ends: 2972 [2020-10-14 20:54:53,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:54:53,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2972 states. [2020-10-14 20:54:54,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2972 to 2825. [2020-10-14 20:54:54,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2825 states. [2020-10-14 20:54:54,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2825 states to 2825 states and 3166 transitions. [2020-10-14 20:54:54,033 INFO L78 Accepts]: Start accepts. Automaton has 2825 states and 3166 transitions. Word has length 288 [2020-10-14 20:54:54,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:54:54,034 INFO L479 AbstractCegarLoop]: Abstraction has 2825 states and 3166 transitions. [2020-10-14 20:54:54,034 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 20:54:54,034 INFO L276 IsEmpty]: Start isEmpty. Operand 2825 states and 3166 transitions. [2020-10-14 20:54:54,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-10-14 20:54:54,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:54,041 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:54:54,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 20:54:54,042 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:54,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:54,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1234817878, now seen corresponding path program 1 times [2020-10-14 20:54:54,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:54,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [136332470] [2020-10-14 20:54:54,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:54,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:54,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:54,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:55,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:55,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:57,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:57,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-10-14 20:54:57,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 20:54:57,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3760 [2020-10-14 20:54:57,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:57,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:57,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 20:54:57,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 20:54:57,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-14 20:54:57,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:58,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:54:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:58,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:58,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:58,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:54:58,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:58,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 20:54:58,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:58,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:58,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:54:58,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:58,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:54:58,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:58,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:54:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:58,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:58,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:58,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 20:54:58,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:58,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-14 20:54:58,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:58,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:58,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:58,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:58,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 20:54:58,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:58,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-14 20:54:58,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:58,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:58,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:58,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:58,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 20:54:58,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:54:58,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-14 20:54:58,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:58,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:58,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:58,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:54:58,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 20:54:58,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:58,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-14 20:54:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:58,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:58,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:58,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 20:54:58,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:58,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-14 20:54:58,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:58,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:58,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:58,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:54:58,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 20:54:58,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:59,050 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 228 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-14 20:54:59,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [136332470] [2020-10-14 20:54:59,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:54:59,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 20:54:59,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205116280] [2020-10-14 20:54:59,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 20:54:59,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:54:59,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 20:54:59,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-14 20:54:59,054 INFO L87 Difference]: Start difference. First operand 2825 states and 3166 transitions. Second operand 10 states. [2020-10-14 20:55:00,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:55:00,995 INFO L93 Difference]: Finished difference Result 5946 states and 6744 transitions. [2020-10-14 20:55:00,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 20:55:00,996 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 297 [2020-10-14 20:55:00,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:55:01,009 INFO L225 Difference]: With dead ends: 5946 [2020-10-14 20:55:01,009 INFO L226 Difference]: Without dead ends: 3270 [2020-10-14 20:55:01,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2020-10-14 20:55:01,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3270 states. [2020-10-14 20:55:01,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3270 to 3264. [2020-10-14 20:55:01,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3264 states. [2020-10-14 20:55:01,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3264 states to 3264 states and 3661 transitions. [2020-10-14 20:55:01,085 INFO L78 Accepts]: Start accepts. Automaton has 3264 states and 3661 transitions. Word has length 297 [2020-10-14 20:55:01,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:55:01,085 INFO L479 AbstractCegarLoop]: Abstraction has 3264 states and 3661 transitions. [2020-10-14 20:55:01,085 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 20:55:01,085 INFO L276 IsEmpty]: Start isEmpty. Operand 3264 states and 3661 transitions. [2020-10-14 20:55:01,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-10-14 20:55:01,092 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:55:01,093 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:55:01,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 20:55:01,093 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:55:01,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:55:01,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1971654787, now seen corresponding path program 1 times [2020-10-14 20:55:01,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:55:01,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1639310864] [2020-10-14 20:55:01,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:55:01,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:01,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:01,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:02,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:02,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:02,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 320 [2020-10-14 20:55:02,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:55:02,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1632 [2020-10-14 20:55:02,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:02,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:02,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:55:02,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-10-14 20:55:02,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 20:55:02,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:55:02,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:55:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:02,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:02,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:02,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:55:02,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:55:02,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 20:55:02,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:02,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:02,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:55:02,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:55:02,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:55:02,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:55:02,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:55:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:02,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:02,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:02,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 20:55:02,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:55:02,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 20:55:02,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:02,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:02,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:55:02,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:55:02,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:55:02,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:55:02,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-14 20:55:02,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:02,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:02,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:02,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 20:55:02,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:55:02,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 20:55:02,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:02,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:02,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:55:02,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:55:02,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 20:55:02,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:55:02,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-14 20:55:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:02,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:03,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:03,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 20:55:03,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:55:03,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 20:55:03,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:03,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:03,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:55:03,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:55:03,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 20:55:03,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:55:03,255 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 169 proven. 2 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-14 20:55:03,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1639310864] [2020-10-14 20:55:03,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:55:03,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:55:03,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017959101] [2020-10-14 20:55:03,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:55:03,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:55:03,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:55:03,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:55:03,257 INFO L87 Difference]: Start difference. First operand 3264 states and 3661 transitions. Second operand 7 states. [2020-10-14 20:55:04,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:55:04,703 INFO L93 Difference]: Finished difference Result 6389 states and 7177 transitions. [2020-10-14 20:55:04,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 20:55:04,704 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 306 [2020-10-14 20:55:04,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:55:04,716 INFO L225 Difference]: With dead ends: 6389 [2020-10-14 20:55:04,716 INFO L226 Difference]: Without dead ends: 3274 [2020-10-14 20:55:04,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 20:55:04,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3274 states. [2020-10-14 20:55:04,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3274 to 3264. [2020-10-14 20:55:04,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3264 states. [2020-10-14 20:55:04,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3264 states to 3264 states and 3648 transitions. [2020-10-14 20:55:04,789 INFO L78 Accepts]: Start accepts. Automaton has 3264 states and 3648 transitions. Word has length 306 [2020-10-14 20:55:04,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:55:04,790 INFO L479 AbstractCegarLoop]: Abstraction has 3264 states and 3648 transitions. [2020-10-14 20:55:04,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:55:04,790 INFO L276 IsEmpty]: Start isEmpty. Operand 3264 states and 3648 transitions. [2020-10-14 20:55:04,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-10-14 20:55:04,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:55:04,796 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:55:04,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 20:55:04,796 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:55:04,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:55:04,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1391324269, now seen corresponding path program 1 times [2020-10-14 20:55:04,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:55:04,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1129904503] [2020-10-14 20:55:04,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:55:04,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:04,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:05,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:05,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 338 [2020-10-14 20:55:05,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:55:05,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 422 [2020-10-14 20:55:05,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:05,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:05,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:55:05,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 323 [2020-10-14 20:55:05,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 20:55:05,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:55:05,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:55:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:05,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:05,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:05,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:55:05,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:55:05,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 20:55:05,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:05,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:05,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:55:05,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:55:05,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:55:05,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:55:05,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:55:05,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:05,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:05,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:05,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-14 20:55:05,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:55:05,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 20:55:05,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:05,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:05,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:55:05,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:55:05,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:55:05,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:55:05,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-14 20:55:05,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:05,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:05,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:05,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-14 20:55:05,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:55:05,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 20:55:05,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:05,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:05,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:55:05,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:55:05,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:55:05,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:55:05,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-14 20:55:05,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:05,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:05,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:05,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 20:55:05,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:55:05,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 20:55:05,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:05,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:05,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:55:05,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:55:05,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 20:55:05,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:55:05,671 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2020-10-14 20:55:05,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1129904503] [2020-10-14 20:55:05,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:55:05,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 20:55:05,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145168143] [2020-10-14 20:55:05,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 20:55:05,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:55:05,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 20:55:05,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:55:05,673 INFO L87 Difference]: Start difference. First operand 3264 states and 3648 transitions. Second operand 6 states. [2020-10-14 20:55:06,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:55:06,995 INFO L93 Difference]: Finished difference Result 3413 states and 3798 transitions. [2020-10-14 20:55:07,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 20:55:07,001 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 324 [2020-10-14 20:55:07,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:55:07,013 INFO L225 Difference]: With dead ends: 3413 [2020-10-14 20:55:07,013 INFO L226 Difference]: Without dead ends: 3262 [2020-10-14 20:55:07,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 20:55:07,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3262 states. [2020-10-14 20:55:07,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3262 to 3260. [2020-10-14 20:55:07,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3260 states. [2020-10-14 20:55:07,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3260 states to 3260 states and 3632 transitions. [2020-10-14 20:55:07,080 INFO L78 Accepts]: Start accepts. Automaton has 3260 states and 3632 transitions. Word has length 324 [2020-10-14 20:55:07,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:55:07,080 INFO L479 AbstractCegarLoop]: Abstraction has 3260 states and 3632 transitions. [2020-10-14 20:55:07,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 20:55:07,081 INFO L276 IsEmpty]: Start isEmpty. Operand 3260 states and 3632 transitions. [2020-10-14 20:55:07,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-10-14 20:55:07,086 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:55:07,086 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2020-10-14 20:55:07,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 20:55:07,087 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:55:07,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:55:07,087 INFO L82 PathProgramCache]: Analyzing trace with hash -645963846, now seen corresponding path program 1 times [2020-10-14 20:55:07,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:55:07,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208070548] [2020-10-14 20:55:07,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:55:07,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:07,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:07,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:08,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:08,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 341 [2020-10-14 20:55:08,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:55:08,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1019 [2020-10-14 20:55:08,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:08,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:08,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:55:08,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 326 [2020-10-14 20:55:08,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 20:55:08,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:55:08,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:55:08,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:08,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:08,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:08,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:55:08,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:55:08,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 20:55:08,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:08,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:08,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:55:08,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:55:08,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:55:08,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:55:08,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:55:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:08,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:08,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:08,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 20:55:08,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:55:08,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 20:55:08,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:08,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:08,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:55:08,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:55:08,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:55:08,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:55:08,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-14 20:55:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:08,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:08,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:08,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 20:55:08,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:55:08,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 20:55:08,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:08,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:08,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:55:08,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:55:08,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:55:08,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:55:08,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 20:55:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:08,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:08,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:08,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 20:55:08,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:55:08,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 20:55:08,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:08,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:08,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:55:08,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:55:08,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 20:55:08,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:55:08,625 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2020-10-14 20:55:08,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [208070548] [2020-10-14 20:55:08,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:55:08,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 20:55:08,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848271973] [2020-10-14 20:55:08,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 20:55:08,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:55:08,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 20:55:08,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:55:08,628 INFO L87 Difference]: Start difference. First operand 3260 states and 3632 transitions. Second operand 5 states. [2020-10-14 20:55:09,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:55:09,525 INFO L93 Difference]: Finished difference Result 3414 states and 3787 transitions. [2020-10-14 20:55:09,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:55:09,526 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 327 [2020-10-14 20:55:09,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:55:09,536 INFO L225 Difference]: With dead ends: 3414 [2020-10-14 20:55:09,536 INFO L226 Difference]: Without dead ends: 3260 [2020-10-14 20:55:09,538 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:55:09,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3260 states. [2020-10-14 20:55:09,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3260 to 3258. [2020-10-14 20:55:09,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3258 states. [2020-10-14 20:55:09,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3258 states to 3258 states and 3623 transitions. [2020-10-14 20:55:09,595 INFO L78 Accepts]: Start accepts. Automaton has 3258 states and 3623 transitions. Word has length 327 [2020-10-14 20:55:09,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:55:09,596 INFO L479 AbstractCegarLoop]: Abstraction has 3258 states and 3623 transitions. [2020-10-14 20:55:09,596 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 20:55:09,597 INFO L276 IsEmpty]: Start isEmpty. Operand 3258 states and 3623 transitions. [2020-10-14 20:55:09,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2020-10-14 20:55:09,603 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:55:09,604 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:55:09,604 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 20:55:09,604 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:55:09,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:55:09,605 INFO L82 PathProgramCache]: Analyzing trace with hash -687628411, now seen corresponding path program 1 times [2020-10-14 20:55:09,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:55:09,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [814538527] [2020-10-14 20:55:09,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:55:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:09,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:09,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:11,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:11,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 382 [2020-10-14 20:55:11,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:55:11,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1557 [2020-10-14 20:55:11,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:11,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:11,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:55:11,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-10-14 20:55:11,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 20:55:11,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:55:11,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:55:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:11,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:11,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:11,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:55:11,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:55:11,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 20:55:11,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:11,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:11,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:55:11,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:55:11,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:55:11,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:55:11,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:55:11,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:11,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:11,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:11,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-14 20:55:11,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:55:11,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 20:55:11,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:11,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:11,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:55:11,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:55:11,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:55:11,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:55:11,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-14 20:55:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:11,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:11,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:11,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-14 20:55:11,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:55:11,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-14 20:55:11,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:11,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:11,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:55:11,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:55:11,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 20:55:11,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:55:11,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-14 20:55:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:11,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:11,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:11,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 20:55:11,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:55:11,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-14 20:55:11,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:11,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:11,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:55:11,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:55:11,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 20:55:11,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:55:12,131 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 234 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-14 20:55:12,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [814538527] [2020-10-14 20:55:12,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:55:12,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:55:12,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744039048] [2020-10-14 20:55:12,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:55:12,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:55:12,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:55:12,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:55:12,137 INFO L87 Difference]: Start difference. First operand 3258 states and 3623 transitions. Second operand 7 states. [2020-10-14 20:55:13,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:55:13,374 INFO L93 Difference]: Finished difference Result 6226 states and 6940 transitions. [2020-10-14 20:55:13,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 20:55:13,381 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 368 [2020-10-14 20:55:13,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:55:13,397 INFO L225 Difference]: With dead ends: 6226 [2020-10-14 20:55:13,397 INFO L226 Difference]: Without dead ends: 3117 [2020-10-14 20:55:13,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 20:55:13,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3117 states. [2020-10-14 20:55:13,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3117 to 3109. [2020-10-14 20:55:13,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3109 states. [2020-10-14 20:55:13,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 3433 transitions. [2020-10-14 20:55:13,459 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 3433 transitions. Word has length 368 [2020-10-14 20:55:13,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:55:13,460 INFO L479 AbstractCegarLoop]: Abstraction has 3109 states and 3433 transitions. [2020-10-14 20:55:13,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:55:13,460 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 3433 transitions. [2020-10-14 20:55:13,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2020-10-14 20:55:13,468 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:55:13,469 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:55:13,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 20:55:13,469 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:55:13,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:55:13,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1033916999, now seen corresponding path program 1 times [2020-10-14 20:55:13,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:55:13,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [146045560] [2020-10-14 20:55:13,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:55:13,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:13,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:14,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:15,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:15,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 392 [2020-10-14 20:55:15,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:55:15,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1611 [2020-10-14 20:55:15,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:15,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:15,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:55:15,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 233 [2020-10-14 20:55:15,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 20:55:15,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:55:15,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:55:15,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:15,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:15,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:15,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:55:15,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:55:15,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 20:55:15,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:15,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:15,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:55:15,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:55:15,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:55:15,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:55:15,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:55:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:15,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:15,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:15,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-14 20:55:15,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:55:15,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 20:55:15,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:15,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:15,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:55:15,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:55:15,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:55:15,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:55:15,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-14 20:55:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:15,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:15,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:15,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 20:55:15,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:55:15,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 20:55:15,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:15,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:15,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:55:15,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:55:15,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 20:55:15,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:55:15,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-14 20:55:15,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:15,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:15,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:15,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 20:55:15,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:55:15,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-14 20:55:15,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:15,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:15,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:55:15,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:55:15,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 20:55:15,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:55:15,738 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 244 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-14 20:55:15,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [146045560] [2020-10-14 20:55:15,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:55:15,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:55:15,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883939035] [2020-10-14 20:55:15,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:55:15,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:55:15,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:55:15,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:55:15,740 INFO L87 Difference]: Start difference. First operand 3109 states and 3433 transitions. Second operand 7 states. [2020-10-14 20:55:17,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:55:17,226 INFO L93 Difference]: Finished difference Result 6953 states and 7762 transitions. [2020-10-14 20:55:17,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 20:55:17,226 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 378 [2020-10-14 20:55:17,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:55:17,235 INFO L225 Difference]: With dead ends: 6953 [2020-10-14 20:55:17,236 INFO L226 Difference]: Without dead ends: 3993 [2020-10-14 20:55:17,241 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-14 20:55:17,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3993 states. [2020-10-14 20:55:17,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3993 to 3693. [2020-10-14 20:55:17,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3693 states. [2020-10-14 20:55:17,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 4090 transitions. [2020-10-14 20:55:17,314 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 4090 transitions. Word has length 378 [2020-10-14 20:55:17,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:55:17,315 INFO L479 AbstractCegarLoop]: Abstraction has 3693 states and 4090 transitions. [2020-10-14 20:55:17,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:55:17,315 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 4090 transitions. [2020-10-14 20:55:17,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2020-10-14 20:55:17,326 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:55:17,327 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:55:17,327 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 20:55:17,327 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:55:17,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:55:17,328 INFO L82 PathProgramCache]: Analyzing trace with hash 631357806, now seen corresponding path program 1 times [2020-10-14 20:55:17,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:55:17,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1312486426] [2020-10-14 20:55:17,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:55:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 20:55:17,465 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 20:55:17,466 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 20:55:17,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 20:55:17,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 08:55:17 BoogieIcfgContainer [2020-10-14 20:55:17,526 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 20:55:17,529 INFO L168 Benchmark]: Toolchain (without parser) took 63217.74 ms. Allocated memory was 145.8 MB in the beginning and 1.0 GB in the end (delta: 902.3 MB). Free memory was 100.4 MB in the beginning and 965.5 MB in the end (delta: -865.2 MB). Peak memory consumption was 924.0 MB. Max. memory is 7.1 GB. [2020-10-14 20:55:17,529 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-14 20:55:17,530 INFO L168 Benchmark]: CACSL2BoogieTranslator took 871.67 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 99.9 MB in the beginning and 167.8 MB in the end (delta: -67.9 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. [2020-10-14 20:55:17,530 INFO L168 Benchmark]: Boogie Preprocessor took 116.18 ms. Allocated memory is still 203.9 MB. Free memory was 167.8 MB in the beginning and 162.6 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2020-10-14 20:55:17,532 INFO L168 Benchmark]: RCFGBuilder took 1376.75 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 162.6 MB in the beginning and 177.7 MB in the end (delta: -15.1 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. [2020-10-14 20:55:17,532 INFO L168 Benchmark]: TraceAbstraction took 60844.68 ms. Allocated memory was 235.4 MB in the beginning and 1.0 GB in the end (delta: 812.6 MB). Free memory was 177.7 MB in the beginning and 965.5 MB in the end (delta: -787.8 MB). Peak memory consumption was 911.7 MB. Max. memory is 7.1 GB. [2020-10-14 20:55:17,535 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 871.67 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 99.9 MB in the beginning and 167.8 MB in the end (delta: -67.9 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.18 ms. Allocated memory is still 203.9 MB. Free memory was 167.8 MB in the beginning and 162.6 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1376.75 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 162.6 MB in the beginning and 177.7 MB in the end (delta: -15.1 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 60844.68 ms. Allocated memory was 235.4 MB in the beginning and 1.0 GB in the end (delta: 812.6 MB). Free memory was 177.7 MB in the beginning and 965.5 MB in the end (delta: -787.8 MB). Peak memory consumption was 911.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 31]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L7] int inputC = 3; [L8] int inputD = 4; [L9] int inputE = 5; [L10] int inputF = 6; [L11] int inputB = 2; [L14] int a1 = 23; [L15] int a19 = 9; [L16] int a10 = 0; [L17] int a12 = 0; [L18] int a4 = 14; [L579] int output = -1; [L582] COND TRUE 1 [L585] int input; [L586] input = __VERIFIER_nondet_int() [L587] COND FALSE !((input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L590] CALL, EXPR calculate_output(input) [L21] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L24] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L27] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L30] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L33] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L36] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L39] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L42] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L45] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L48] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L51] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L54] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L57] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L60] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L63] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L66] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L69] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L72] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L75] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L78] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L81] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L84] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L87] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L90] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L93] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L96] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L99] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L102] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L105] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L108] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L111] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L114] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L117] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L120] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L123] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L126] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L129] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L132] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L135] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L138] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L141] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L144] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L147] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L150] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L153] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L156] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L159] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L162] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L165] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L168] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L171] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L174] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L177] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L180] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L183] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L186] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L189] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L192] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L195] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L198] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==9))) [L201] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L205] COND FALSE !((((a10==4) && ( 218 < a1 && (((input == 4) && (a12==0)) && (a4==14)))) && (a19==9))) [L210] COND FALSE !(((a4==14) && (((a12==0) && ((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 4)) && (a19==9))) && (a10==0)))) [L215] COND FALSE !(((((a4==14) && ((a19==10) && ((a10==1) && (input == 2)))) && (a12==0)) && 218 < a1 )) [L220] COND FALSE !(((a12==0) && ((a19==9) && ((a10==1) && (( 218 < a1 && (input == 3)) && (a4==14)))))) [L225] COND FALSE !(((a19==10) && (((a4==14) && (((((a10==0) && ((38 < a1) && (218 >= a1)) ) || ((a10==0) && 218 < a1 )) || ((a10==1) && a1 <= -13 )) && (input == 5))) && (a12==0)))) [L231] COND FALSE !(((a12==0) && ((a19==9) && (((a4==14) && ((input == 2) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ))) && (a10==3))))) [L236] COND FALSE !(((a12==0) && ((((a4==14) && ((input == 3) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ))) && (a10==2)) && (a19==9)))) [L239] COND FALSE !((((a12==0) && ( ((-13 < a1) && (38 >= a1)) && (((input == 3) && (a19==10)) && (a4==14)))) && (a10==1))) [L244] COND FALSE !((((a19==9) && (((input == 6) && (( 218 < a1 && (a10==0)) || ( a1 <= -13 && (a10==1)))) && (a4==14))) && (a12==0))) [L249] COND FALSE !(( ((38 < a1) && (218 >= a1)) && (((a4==14) && ((a19==10) && ((a10==1) && (input == 4)))) && (a12==0)))) [L254] COND FALSE !((((a4==14) && (((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 5)) && (a19==9)) && (a12==0))) && (a10==0))) [L260] COND FALSE !((((a4==14) && ((((((a10==2) && ((38 < a1) && (218 >= a1)) ) || ((a10==2) && 218 < a1 )) || ( a1 <= -13 && (a10==3))) && (input == 2)) && (a19==9))) && (a12==0))) [L265] COND FALSE !((((a10==1) && (((a12==0) && ((input == 6) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ))) && (a4==14))) && (a19==9))) [L271] COND FALSE !(((((((input == 5) && (a4==14)) && 218 < a1 ) && (a10==4)) && (a19==9)) && (a12==0))) [L277] COND FALSE !(((a19==10) && ((a4==14) && ((a12==0) && ((input == 4) && ((((a10==0) && ((38 < a1) && (218 >= a1)) ) || ( 218 < a1 && (a10==0))) || ((a10==1) && a1 <= -13 ))))))) [L283] COND FALSE !((((a12==0) && ((((a19==9) && (input == 4)) && 218 < a1 ) && (a10==1))) && (a4==14))) [L286] COND FALSE !(((a10==1) && ((a4==14) && ((((a12==0) && (input == 2)) && (a19==9)) && 218 < a1 )))) [L291] COND FALSE !((((a4==14) && (((input == 4) && ((( ((38 < a1) && (218 >= a1)) && (a10==2)) || ((a10==2) && 218 < a1 )) || ( a1 <= -13 && (a10==3)))) && (a19==9))) && (a12==0))) [L296] COND FALSE !(((((a12==0) && ((((a10==0) && 218 < a1 ) || ((a10==1) && a1 <= -13 )) && (input == 2))) && (a19==9)) && (a4==14))) [L301] COND FALSE !((((a4==14) && ((a12==0) && ((input == 3) && (((a10==3) && 218 < a1 ) || ( a1 <= -13 && (a10==4)))))) && (a19==9))) [L306] COND FALSE !((((((a10==1) && ((a12==0) && (input == 6))) && (a19==10)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14))) [L312] COND FALSE !(((a19==9) && (((a10==4) && ( 218 < a1 && ((a4==14) && (input == 6)))) && (a12==0)))) [L317] COND FALSE !((((a10==0) && ((a12==0) && (((input == 4) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) )) && (a19==10)))) && (a4==14))) [L320] COND FALSE !(((a19==9) && ((((a4==14) && ((input == 2) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ))) && (a12==0)) && (a10==2)))) [L323] COND FALSE !((((((a12==0) && ((input == 4) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ))) && (a19==9)) && (a4==14)) && (a10==3))) [L326] COND FALSE !((((a4==14) && (((a12==0) && ( 218 < a1 && (input == 6))) && (a19==10))) && (a10==1))) [L329] COND FALSE !(((((((input == 2) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) )) && (a19==10)) && (a10==0)) && (a4==14)) && (a12==0))) [L335] COND FALSE !((((((( 218 < a1 && (a10==0)) || ((a10==1) && a1 <= -13 )) && (input == 3)) && (a4==14)) && (a12==0)) && (a19==9))) [L340] COND FALSE !(((a12==0) && ((a19==9) && (((input == 6) && (((a10==3) && 218 < a1 ) || ( a1 <= -13 && (a10==4)))) && (a4==14))))) [L345] COND FALSE !((((a10==3) && (((a19==9) && (( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 5))) && (a12==0))) && (a4==14))) [L351] COND FALSE !((((a12==0) && ((a10==1) && ( 218 < a1 && ((a19==9) && (input == 6))))) && (a4==14))) [L354] COND FALSE !(((a10==0) && ((a12==0) && (((( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ) && (input == 3)) && (a19==10)) && (a4==14))))) [L357] COND FALSE !((((a10==4) && (((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 4)) && (a4==14)) && (a19==9))) && (a12==0))) [L360] COND FALSE !(((a4==14) && ((a10==1) && ((a19==9) && ((a12==0) && (( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 4))))))) [L365] COND FALSE !(((a4==14) && ((a19==9) && (((( a1 <= -13 && (a10==3)) || (( ((38 < a1) && (218 >= a1)) && (a10==2)) || ((a10==2) && 218 < a1 ))) && (input == 3)) && (a12==0))))) [L370] COND FALSE !((((((a4==14) && ((input == 6) && (a10==1))) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a19==10))) [L375] COND FALSE !(((a4==14) && (((a12==0) && ( 218 < a1 && ((a19==9) && (input == 3)))) && (a10==4)))) [L378] COND FALSE !((((a4==14) && ((a12==0) && ((((a10==3) && 218 < a1 ) || ((a10==4) && a1 <= -13 )) && (input == 4)))) && (a19==9))) [L383] COND FALSE !((((a12==0) && (((a10==4) && (( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 3))) && (a4==14))) && (a19==9))) [L388] COND FALSE !(((a19==9) && ((a4==14) && (((input == 5) && ((( ((38 < a1) && (218 >= a1)) && (a10==2)) || ((a10==2) && 218 < a1 )) || ((a10==3) && a1 <= -13 ))) && (a12==0))))) [L393] COND FALSE !(((a12==0) && (((a19==9) && ((((a10==0) && 218 < a1 ) || ( a1 <= -13 && (a10==1))) && (input == 5))) && (a4==14)))) [L398] COND FALSE !(( 218 < a1 && ((((a12==0) && ((a19==9) && (input == 2))) && (a10==4)) && (a4==14)))) [L403] COND FALSE !((((a12==0) && ((a19==9) && ((((a10==3) && a1 <= -13 ) || (((a10==2) && ((38 < a1) && (218 >= a1)) ) || ( 218 < a1 && (a10==2)))) && (input == 6)))) && (a4==14))) [L408] COND FALSE !(((a19==9) && ((a12==0) && (((( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ) && (input == 5)) && (a4==14)) && (a10==2))))) [L414] COND FALSE !((((a10==1) && (((a12==0) && ((a19==10) && (input == 4))) && ((-13 < a1) && (38 >= a1)) )) && (a4==14))) [L419] COND FALSE !(((a12==0) && ((a4==14) && ( 218 < a1 && (((a10==1) && (input == 4)) && (a19==10)))))) [L425] COND FALSE !(((((((input == 3) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) )) && (a10==0)) && (a19==9)) && (a4==14)) && (a12==0))) [L430] COND FALSE !((((a4==14) && (((( a1 <= -13 && (a10==1)) || (((a10==0) && ((38 < a1) && (218 >= a1)) ) || ( 218 < a1 && (a10==0)))) && (input == 6)) && (a19==10))) && (a12==0))) [L436] COND FALSE !(((a19==9) && ((((input == 4) && (( 218 < a1 && (a10==0)) || ((a10==1) && a1 <= -13 ))) && (a12==0)) && (a4==14)))) [L442] COND FALSE !((((a19==10) && ((a12==0) && ((((a10==1) && a1 <= -13 ) || (( ((38 < a1) && (218 >= a1)) && (a10==0)) || ((a10==0) && 218 < a1 ))) && (input == 3)))) && (a4==14))) [L448] COND FALSE !(((a19==9) && (((a4==14) && ((((a10==3) && 218 < a1 ) || ( a1 <= -13 && (a10==4))) && (input == 5))) && (a12==0)))) [L454] COND FALSE !((((a12==0) && ((((input == 5) && (a19==10)) && ((38 < a1) && (218 >= a1)) ) && (a4==14))) && (a10==1))) [L460] COND FALSE !(((a19==9) && ((a4==14) && (((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 3)) && (a10==1)) && (a12==0))))) [L465] COND FALSE !(((a10==0) && ((a12==0) && ((((input == 5) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) )) && (a19==10)) && (a4==14))))) [L471] COND FALSE !(( 218 < a1 && (((((input == 3) && (a10==1)) && (a12==0)) && (a4==14)) && (a19==10)))) [L476] COND FALSE !((((a12==0) && ((a19==9) && (((input == 3) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) )) && (a4==14)))) && (a10==3))) [L481] COND FALSE !((((((a4==14) && ( ((38 < a1) && (218 >= a1)) && (input == 2))) && (a12==0)) && (a10==1)) && (a19==10))) [L487] COND FALSE !((((a19==10) && ((a10==1) && ((a12==0) && ( ((-13 < a1) && (38 >= a1)) && (input == 5))))) && (a4==14))) [L493] COND FALSE !(((((a10==1) && (((input == 5) && 218 < a1 ) && (a4==14))) && (a19==10)) && (a12==0))) [L499] COND FALSE !((((a4==14) && ((a19==9) && ((input == 2) && (((a10==3) && 218 < a1 ) || ((a10==4) && a1 <= -13 ))))) && (a12==0))) [L504] COND FALSE !((((a4==14) && (((a19==9) && (( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 2))) && (a12==0))) && (a10==4))) [L509] COND FALSE !(((a4==14) && (((a19==9) && ((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 6)) && (a10==3))) && (a12==0)))) [L514] COND FALSE !((((a4==14) && ((((input == 6) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) )) && (a19==10)) && (a12==0))) && (a10==0))) [L517] COND FALSE !(((a12==0) && ((a4==14) && (((( a1 <= -13 && (a10==1)) || (((a10==0) && ((38 < a1) && (218 >= a1)) ) || ( 218 < a1 && (a10==0)))) && (input == 2)) && (a19==10))))) [L523] COND FALSE !((((a12==0) && ((a19==9) && ((a10==2) && ((input == 6) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ))))) && (a4==14))) [L526] COND TRUE ((a4==14) && ((a19==9) && ((a12==0) && (((input == 2) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) )) && (a10==0))))) [L527] a1 = (((a1 * 5) + 278443) - -239546) [L528] return 26; [L590] RET, EXPR calculate_output(input) [L590] output = calculate_output(input) [L582] COND TRUE 1 [L585] int input; [L586] input = __VERIFIER_nondet_int() [L587] COND FALSE !((input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L590] CALL, EXPR calculate_output(input) [L21] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L24] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L27] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L30] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L33] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L36] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L39] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L42] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L45] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L48] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L51] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L54] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L57] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L60] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L63] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L66] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L69] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L72] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L75] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L78] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L81] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L84] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L87] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L90] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L93] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L96] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L99] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L102] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L105] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L108] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L111] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L114] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L117] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L120] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L123] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L126] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L129] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L132] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L135] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L138] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L141] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L144] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L147] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L150] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L153] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L156] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L159] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L162] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L165] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L168] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L171] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L174] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L177] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L180] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L183] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L186] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L189] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L192] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L195] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L198] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==9))) [L201] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L205] COND FALSE !((((a10==4) && ( 218 < a1 && (((input == 4) && (a12==0)) && (a4==14)))) && (a19==9))) [L210] COND FALSE !(((a4==14) && (((a12==0) && ((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 4)) && (a19==9))) && (a10==0)))) [L215] COND FALSE !(((((a4==14) && ((a19==10) && ((a10==1) && (input == 2)))) && (a12==0)) && 218 < a1 )) [L220] COND FALSE !(((a12==0) && ((a19==9) && ((a10==1) && (( 218 < a1 && (input == 3)) && (a4==14)))))) [L225] COND FALSE !(((a19==10) && (((a4==14) && (((((a10==0) && ((38 < a1) && (218 >= a1)) ) || ((a10==0) && 218 < a1 )) || ((a10==1) && a1 <= -13 )) && (input == 5))) && (a12==0)))) [L231] COND FALSE !(((a12==0) && ((a19==9) && (((a4==14) && ((input == 2) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ))) && (a10==3))))) [L236] COND FALSE !(((a12==0) && ((((a4==14) && ((input == 3) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ))) && (a10==2)) && (a19==9)))) [L239] COND FALSE !((((a12==0) && ( ((-13 < a1) && (38 >= a1)) && (((input == 3) && (a19==10)) && (a4==14)))) && (a10==1))) [L244] COND FALSE !((((a19==9) && (((input == 6) && (( 218 < a1 && (a10==0)) || ( a1 <= -13 && (a10==1)))) && (a4==14))) && (a12==0))) [L249] COND FALSE !(( ((38 < a1) && (218 >= a1)) && (((a4==14) && ((a19==10) && ((a10==1) && (input == 4)))) && (a12==0)))) [L254] COND FALSE !((((a4==14) && (((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 5)) && (a19==9)) && (a12==0))) && (a10==0))) [L260] COND FALSE !((((a4==14) && ((((((a10==2) && ((38 < a1) && (218 >= a1)) ) || ((a10==2) && 218 < a1 )) || ( a1 <= -13 && (a10==3))) && (input == 2)) && (a19==9))) && (a12==0))) [L265] COND FALSE !((((a10==1) && (((a12==0) && ((input == 6) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ))) && (a4==14))) && (a19==9))) [L271] COND FALSE !(((((((input == 5) && (a4==14)) && 218 < a1 ) && (a10==4)) && (a19==9)) && (a12==0))) [L277] COND FALSE !(((a19==10) && ((a4==14) && ((a12==0) && ((input == 4) && ((((a10==0) && ((38 < a1) && (218 >= a1)) ) || ( 218 < a1 && (a10==0))) || ((a10==1) && a1 <= -13 ))))))) [L283] COND FALSE !((((a12==0) && ((((a19==9) && (input == 4)) && 218 < a1 ) && (a10==1))) && (a4==14))) [L286] COND FALSE !(((a10==1) && ((a4==14) && ((((a12==0) && (input == 2)) && (a19==9)) && 218 < a1 )))) [L291] COND FALSE !((((a4==14) && (((input == 4) && ((( ((38 < a1) && (218 >= a1)) && (a10==2)) || ((a10==2) && 218 < a1 )) || ( a1 <= -13 && (a10==3)))) && (a19==9))) && (a12==0))) [L296] COND FALSE !(((((a12==0) && ((((a10==0) && 218 < a1 ) || ((a10==1) && a1 <= -13 )) && (input == 2))) && (a19==9)) && (a4==14))) [L301] COND FALSE !((((a4==14) && ((a12==0) && ((input == 3) && (((a10==3) && 218 < a1 ) || ( a1 <= -13 && (a10==4)))))) && (a19==9))) [L306] COND FALSE !((((((a10==1) && ((a12==0) && (input == 6))) && (a19==10)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14))) [L312] COND FALSE !(((a19==9) && (((a10==4) && ( 218 < a1 && ((a4==14) && (input == 6)))) && (a12==0)))) [L317] COND FALSE !((((a10==0) && ((a12==0) && (((input == 4) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) )) && (a19==10)))) && (a4==14))) [L320] COND FALSE !(((a19==9) && ((((a4==14) && ((input == 2) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ))) && (a12==0)) && (a10==2)))) [L323] COND FALSE !((((((a12==0) && ((input == 4) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ))) && (a19==9)) && (a4==14)) && (a10==3))) [L326] COND FALSE !((((a4==14) && (((a12==0) && ( 218 < a1 && (input == 6))) && (a19==10))) && (a10==1))) [L329] COND FALSE !(((((((input == 2) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) )) && (a19==10)) && (a10==0)) && (a4==14)) && (a12==0))) [L335] COND TRUE (((((( 218 < a1 && (a10==0)) || ((a10==1) && a1 <= -13 )) && (input == 3)) && (a4==14)) && (a12==0)) && (a19==9)) [L336] a1 = ((((((a1 / 5) % 25)+ 13) * 5) % 25)- -12) [L337] a10 = 4 [L339] return 22; [L590] RET, EXPR calculate_output(input) [L590] output = calculate_output(input) [L582] COND TRUE 1 [L585] int input; [L586] input = __VERIFIER_nondet_int() [L587] COND FALSE !((input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L590] CALL, EXPR calculate_output(input) [L21] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L24] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L27] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L30] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L33] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L36] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L39] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L42] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L45] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L48] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L51] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L54] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L57] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L60] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L63] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L66] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L69] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L72] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L75] COND FALSE !((((((a10==1) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L78] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L81] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L84] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L87] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L90] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L93] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L96] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L99] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L102] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L105] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L108] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L111] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L114] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L117] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L120] COND FALSE !((((((a10==4) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==7))) [L123] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L126] COND FALSE !((((((a10==3) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L129] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L132] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L135] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L138] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L141] COND FALSE !((((((a10==1) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L144] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L147] COND FALSE !((((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L150] COND FALSE !((((((a10==0) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L153] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==8))) [L156] COND FALSE !((((((a10==4) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L159] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L162] COND FALSE !((((((a10==0) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L165] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L168] COND FALSE !((((((a10==3) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L171] COND FALSE !((((((a10==2) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==6))) [L174] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L177] COND FALSE !((((((a10==4) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L180] COND FALSE !((((((a10==0) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==6))) [L183] COND FALSE !((((((a10==2) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==7))) [L186] COND FALSE !((((((a10==3) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L189] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8))) [L192] COND FALSE !((((((a10==3) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==7))) [L195] COND FALSE !((((((a10==1) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==7))) [L198] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==9))) [L201] COND FALSE !((((((a10==1) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==6))) [L205] COND FALSE !((((a10==4) && ( 218 < a1 && (((input == 4) && (a12==0)) && (a4==14)))) && (a19==9))) [L210] COND FALSE !(((a4==14) && (((a12==0) && ((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 4)) && (a19==9))) && (a10==0)))) [L215] COND FALSE !(((((a4==14) && ((a19==10) && ((a10==1) && (input == 2)))) && (a12==0)) && 218 < a1 )) [L220] COND FALSE !(((a12==0) && ((a19==9) && ((a10==1) && (( 218 < a1 && (input == 3)) && (a4==14)))))) [L225] COND FALSE !(((a19==10) && (((a4==14) && (((((a10==0) && ((38 < a1) && (218 >= a1)) ) || ((a10==0) && 218 < a1 )) || ((a10==1) && a1 <= -13 )) && (input == 5))) && (a12==0)))) [L231] COND FALSE !(((a12==0) && ((a19==9) && (((a4==14) && ((input == 2) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ))) && (a10==3))))) [L236] COND FALSE !(((a12==0) && ((((a4==14) && ((input == 3) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ))) && (a10==2)) && (a19==9)))) [L239] COND FALSE !((((a12==0) && ( ((-13 < a1) && (38 >= a1)) && (((input == 3) && (a19==10)) && (a4==14)))) && (a10==1))) [L244] COND FALSE !((((a19==9) && (((input == 6) && (( 218 < a1 && (a10==0)) || ( a1 <= -13 && (a10==1)))) && (a4==14))) && (a12==0))) [L249] COND FALSE !(( ((38 < a1) && (218 >= a1)) && (((a4==14) && ((a19==10) && ((a10==1) && (input == 4)))) && (a12==0)))) [L254] COND FALSE !((((a4==14) && (((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 5)) && (a19==9)) && (a12==0))) && (a10==0))) [L260] COND FALSE !((((a4==14) && ((((((a10==2) && ((38 < a1) && (218 >= a1)) ) || ((a10==2) && 218 < a1 )) || ( a1 <= -13 && (a10==3))) && (input == 2)) && (a19==9))) && (a12==0))) [L265] COND FALSE !((((a10==1) && (((a12==0) && ((input == 6) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ))) && (a4==14))) && (a19==9))) [L271] COND FALSE !(((((((input == 5) && (a4==14)) && 218 < a1 ) && (a10==4)) && (a19==9)) && (a12==0))) [L277] COND FALSE !(((a19==10) && ((a4==14) && ((a12==0) && ((input == 4) && ((((a10==0) && ((38 < a1) && (218 >= a1)) ) || ( 218 < a1 && (a10==0))) || ((a10==1) && a1 <= -13 ))))))) [L283] COND FALSE !((((a12==0) && ((((a19==9) && (input == 4)) && 218 < a1 ) && (a10==1))) && (a4==14))) [L286] COND FALSE !(((a10==1) && ((a4==14) && ((((a12==0) && (input == 2)) && (a19==9)) && 218 < a1 )))) [L291] COND FALSE !((((a4==14) && (((input == 4) && ((( ((38 < a1) && (218 >= a1)) && (a10==2)) || ((a10==2) && 218 < a1 )) || ( a1 <= -13 && (a10==3)))) && (a19==9))) && (a12==0))) [L296] COND FALSE !(((((a12==0) && ((((a10==0) && 218 < a1 ) || ((a10==1) && a1 <= -13 )) && (input == 2))) && (a19==9)) && (a4==14))) [L301] COND FALSE !((((a4==14) && ((a12==0) && ((input == 3) && (((a10==3) && 218 < a1 ) || ( a1 <= -13 && (a10==4)))))) && (a19==9))) [L306] COND FALSE !((((((a10==1) && ((a12==0) && (input == 6))) && (a19==10)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14))) [L312] COND FALSE !(((a19==9) && (((a10==4) && ( 218 < a1 && ((a4==14) && (input == 6)))) && (a12==0)))) [L317] COND FALSE !((((a10==0) && ((a12==0) && (((input == 4) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) )) && (a19==10)))) && (a4==14))) [L320] COND FALSE !(((a19==9) && ((((a4==14) && ((input == 2) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ))) && (a12==0)) && (a10==2)))) [L323] COND FALSE !((((((a12==0) && ((input == 4) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ))) && (a19==9)) && (a4==14)) && (a10==3))) [L326] COND FALSE !((((a4==14) && (((a12==0) && ( 218 < a1 && (input == 6))) && (a19==10))) && (a10==1))) [L329] COND FALSE !(((((((input == 2) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) )) && (a19==10)) && (a10==0)) && (a4==14)) && (a12==0))) [L335] COND FALSE !((((((( 218 < a1 && (a10==0)) || ((a10==1) && a1 <= -13 )) && (input == 3)) && (a4==14)) && (a12==0)) && (a19==9))) [L340] COND FALSE !(((a12==0) && ((a19==9) && (((input == 6) && (((a10==3) && 218 < a1 ) || ( a1 <= -13 && (a10==4)))) && (a4==14))))) [L345] COND FALSE !((((a10==3) && (((a19==9) && (( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 5))) && (a12==0))) && (a4==14))) [L351] COND FALSE !((((a12==0) && ((a10==1) && ( 218 < a1 && ((a19==9) && (input == 6))))) && (a4==14))) [L354] COND FALSE !(((a10==0) && ((a12==0) && (((( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ) && (input == 3)) && (a19==10)) && (a4==14))))) [L357] COND FALSE !((((a10==4) && (((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 4)) && (a4==14)) && (a19==9))) && (a12==0))) [L360] COND FALSE !(((a4==14) && ((a10==1) && ((a19==9) && ((a12==0) && (( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 4))))))) [L365] COND FALSE !(((a4==14) && ((a19==9) && (((( a1 <= -13 && (a10==3)) || (( ((38 < a1) && (218 >= a1)) && (a10==2)) || ((a10==2) && 218 < a1 ))) && (input == 3)) && (a12==0))))) [L370] COND FALSE !((((((a4==14) && ((input == 6) && (a10==1))) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a19==10))) [L375] COND FALSE !(((a4==14) && (((a12==0) && ( 218 < a1 && ((a19==9) && (input == 3)))) && (a10==4)))) [L378] COND FALSE !((((a4==14) && ((a12==0) && ((((a10==3) && 218 < a1 ) || ((a10==4) && a1 <= -13 )) && (input == 4)))) && (a19==9))) [L383] COND FALSE !((((a12==0) && (((a10==4) && (( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 3))) && (a4==14))) && (a19==9))) [L388] COND FALSE !(((a19==9) && ((a4==14) && (((input == 5) && ((( ((38 < a1) && (218 >= a1)) && (a10==2)) || ((a10==2) && 218 < a1 )) || ((a10==3) && a1 <= -13 ))) && (a12==0))))) [L393] COND FALSE !(((a12==0) && (((a19==9) && ((((a10==0) && 218 < a1 ) || ( a1 <= -13 && (a10==1))) && (input == 5))) && (a4==14)))) [L398] COND FALSE !(( 218 < a1 && ((((a12==0) && ((a19==9) && (input == 2))) && (a10==4)) && (a4==14)))) [L403] COND FALSE !((((a12==0) && ((a19==9) && ((((a10==3) && a1 <= -13 ) || (((a10==2) && ((38 < a1) && (218 >= a1)) ) || ( 218 < a1 && (a10==2)))) && (input == 6)))) && (a4==14))) [L408] COND FALSE !(((a19==9) && ((a12==0) && (((( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ) && (input == 5)) && (a4==14)) && (a10==2))))) [L414] COND FALSE !((((a10==1) && (((a12==0) && ((a19==10) && (input == 4))) && ((-13 < a1) && (38 >= a1)) )) && (a4==14))) [L419] COND FALSE !(((a12==0) && ((a4==14) && ( 218 < a1 && (((a10==1) && (input == 4)) && (a19==10)))))) [L425] COND FALSE !(((((((input == 3) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) )) && (a10==0)) && (a19==9)) && (a4==14)) && (a12==0))) [L430] COND FALSE !((((a4==14) && (((( a1 <= -13 && (a10==1)) || (((a10==0) && ((38 < a1) && (218 >= a1)) ) || ( 218 < a1 && (a10==0)))) && (input == 6)) && (a19==10))) && (a12==0))) [L436] COND FALSE !(((a19==9) && ((((input == 4) && (( 218 < a1 && (a10==0)) || ((a10==1) && a1 <= -13 ))) && (a12==0)) && (a4==14)))) [L442] COND FALSE !((((a19==10) && ((a12==0) && ((((a10==1) && a1 <= -13 ) || (( ((38 < a1) && (218 >= a1)) && (a10==0)) || ((a10==0) && 218 < a1 ))) && (input == 3)))) && (a4==14))) [L448] COND FALSE !(((a19==9) && (((a4==14) && ((((a10==3) && 218 < a1 ) || ( a1 <= -13 && (a10==4))) && (input == 5))) && (a12==0)))) [L454] COND FALSE !((((a12==0) && ((((input == 5) && (a19==10)) && ((38 < a1) && (218 >= a1)) ) && (a4==14))) && (a10==1))) [L460] COND FALSE !(((a19==9) && ((a4==14) && (((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 3)) && (a10==1)) && (a12==0))))) [L465] COND FALSE !(((a10==0) && ((a12==0) && ((((input == 5) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) )) && (a19==10)) && (a4==14))))) [L471] COND FALSE !(( 218 < a1 && (((((input == 3) && (a10==1)) && (a12==0)) && (a4==14)) && (a19==10)))) [L476] COND FALSE !((((a12==0) && ((a19==9) && (((input == 3) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) )) && (a4==14)))) && (a10==3))) [L481] COND FALSE !((((((a4==14) && ( ((38 < a1) && (218 >= a1)) && (input == 2))) && (a12==0)) && (a10==1)) && (a19==10))) [L487] COND FALSE !((((a19==10) && ((a10==1) && ((a12==0) && ( ((-13 < a1) && (38 >= a1)) && (input == 5))))) && (a4==14))) [L493] COND FALSE !(((((a10==1) && (((input == 5) && 218 < a1 ) && (a4==14))) && (a19==10)) && (a12==0))) [L499] COND FALSE !((((a4==14) && ((a19==9) && ((input == 2) && (((a10==3) && 218 < a1 ) || ((a10==4) && a1 <= -13 ))))) && (a12==0))) [L504] COND FALSE !((((a4==14) && (((a19==9) && (( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 2))) && (a12==0))) && (a10==4))) [L509] COND FALSE !(((a4==14) && (((a19==9) && ((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 6)) && (a10==3))) && (a12==0)))) [L514] COND FALSE !((((a4==14) && ((((input == 6) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) )) && (a19==10)) && (a12==0))) && (a10==0))) [L517] COND FALSE !(((a12==0) && ((a4==14) && (((( a1 <= -13 && (a10==1)) || (((a10==0) && ((38 < a1) && (218 >= a1)) ) || ( 218 < a1 && (a10==0)))) && (input == 2)) && (a19==10))))) [L523] COND FALSE !((((a12==0) && ((a19==9) && ((a10==2) && ((input == 6) && ( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ))))) && (a4==14))) [L526] COND FALSE !(((a4==14) && ((a19==9) && ((a12==0) && (((input == 2) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) )) && (a10==0)))))) [L529] COND FALSE !(((a19==9) && (((a10==1) && ((a12==0) && ((input == 2) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) )))) && (a4==14)))) [L534] COND FALSE !(((a19==9) && ((a4==14) && ((a10==1) && (((input == 5) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) )) && (a12==0)))))) [L540] COND FALSE !(((a12==0) && (((((input == 6) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) )) && (a19==9)) && (a4==14)) && (a10==0)))) [L545] COND FALSE !(((a4==14) && (((a12==0) && ((a19==9) && ((input == 6) && ( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) )))) && (a10==4)))) [L548] COND FALSE !(((((( ((38 < a1) && (218 >= a1)) && (input == 3)) && (a10==1)) && (a12==0)) && (a4==14)) && (a19==10))) [L554] COND FALSE !((((a4==14) && (((( a1 <= -13 || ((-13 < a1) && (38 >= a1)) ) && (input == 4)) && (a12==0)) && (a19==9))) && (a10==2))) [L557] COND FALSE !(((a12==0) && ((( 218 < a1 && ((a19==9) && (input == 5))) && (a10==1)) && (a4==14)))) [L563] COND TRUE ((a4==14) && ((((( ((-13 < a1) && (38 >= a1)) || ((38 < a1) && (218 >= a1)) ) && (input == 5)) && (a12==0)) && (a19==9)) && (a10==4))) [L564] a1 = (((a1 + 566454) + 1842) + 23814) [L565] a10 = 2 [L566] a19 = 8 [L568] return -1; [L590] RET, EXPR calculate_output(input) [L590] output = calculate_output(input) [L582] COND TRUE 1 [L585] int input; [L586] input = __VERIFIER_nondet_int() [L587] COND FALSE !((input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L590] CALL calculate_output(input) [L21] COND FALSE !((((((a10==4) && (a12==0)) && ((38 < a1) && (218 >= a1)) ) && (a4==14)) && (a19==8))) [L24] COND FALSE !((((((a10==2) && (a12==0)) && ((-13 < a1) && (38 >= a1)) ) && (a4==14)) && (a19==8))) [L27] COND FALSE !((((((a10==0) && (a12==0)) && a1 <= -13 ) && (a4==14)) && (a19==6))) [L30] COND TRUE (((((a10==2) && (a12==0)) && 218 < a1 ) && (a4==14)) && (a19==8)) [L31] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 60.7s, OverallIterations: 20, TraceHistogramMax: 4, AutomataDifference: 27.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 527 SDtfs, 7505 SDslu, 585 SDs, 0 SdLazy, 17590 SolverSat, 2217 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 322 GetRequests, 164 SyntacticMatches, 2 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3693occurred in iteration=19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 19 MinimizatonAttempts, 1754 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 29.2s InterpolantComputationTime, 4816 NumberOfCodeBlocks, 4816 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 4410 ConstructedInterpolants, 0 QuantifiedInterpolants, 2868650 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 4 PerfectInterpolantSequences, 2789/2893 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...