/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label35.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 15:02:14,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 15:02:14,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 15:02:14,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 15:02:14,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 15:02:14,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 15:02:14,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 15:02:14,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 15:02:14,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 15:02:14,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 15:02:14,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 15:02:14,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 15:02:14,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 15:02:14,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 15:02:14,952 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 15:02:14,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 15:02:14,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 15:02:14,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 15:02:14,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 15:02:14,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 15:02:14,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 15:02:14,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 15:02:14,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 15:02:14,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 15:02:14,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 15:02:14,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 15:02:14,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 15:02:14,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 15:02:14,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 15:02:14,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 15:02:14,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 15:02:14,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 15:02:14,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 15:02:14,970 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 15:02:14,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 15:02:14,971 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 15:02:14,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 15:02:14,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 15:02:14,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 15:02:14,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 15:02:14,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 15:02:14,975 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 15:02:15,010 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 15:02:15,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 15:02:15,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 15:02:15,014 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 15:02:15,014 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 15:02:15,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 15:02:15,015 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 15:02:15,015 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 15:02:15,015 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 15:02:15,015 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 15:02:15,016 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 15:02:15,016 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 15:02:15,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 15:02:15,017 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 15:02:15,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 15:02:15,017 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 15:02:15,017 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 15:02:15,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 15:02:15,018 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 15:02:15,018 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 15:02:15,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 15:02:15,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:02:15,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 15:02:15,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 15:02:15,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 15:02:15,021 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 15:02:15,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 15:02:15,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 15:02:15,022 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 15:02:15,022 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 15:02:15,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 15:02:15,364 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 15:02:15,367 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 15:02:15,369 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 15:02:15,369 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 15:02:15,370 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label35.c [2020-10-12 15:02:15,432 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5bbd6a56b/86be8d1b336d4cf295bca2ca0ae1b104/FLAG2383daaf1 [2020-10-12 15:02:16,095 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 15:02:16,096 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label35.c [2020-10-12 15:02:16,117 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5bbd6a56b/86be8d1b336d4cf295bca2ca0ae1b104/FLAG2383daaf1 [2020-10-12 15:02:16,284 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5bbd6a56b/86be8d1b336d4cf295bca2ca0ae1b104 [2020-10-12 15:02:16,294 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 15:02:16,296 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 15:02:16,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 15:02:16,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 15:02:16,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 15:02:16,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:02:16" (1/1) ... [2020-10-12 15:02:16,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:02:16, skipping insertion in model container [2020-10-12 15:02:16,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:02:16" (1/1) ... [2020-10-12 15:02:16,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 15:02:16,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 15:02:17,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:02:17,733 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 15:02:18,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:02:18,233 INFO L208 MainTranslator]: Completed translation [2020-10-12 15:02:18,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:02:18 WrapperNode [2020-10-12 15:02:18,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 15:02:18,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 15:02:18,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 15:02:18,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 15:02:18,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:02:18" (1/1) ... [2020-10-12 15:02:18,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:02:18" (1/1) ... [2020-10-12 15:02:18,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:02:18" (1/1) ... [2020-10-12 15:02:18,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:02:18" (1/1) ... [2020-10-12 15:02:18,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:02:18" (1/1) ... [2020-10-12 15:02:18,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:02:18" (1/1) ... [2020-10-12 15:02:18,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:02:18" (1/1) ... [2020-10-12 15:02:18,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 15:02:18,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 15:02:18,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 15:02:18,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 15:02:18,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:02:18" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:02:18,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 15:02:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 15:02:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 15:02:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-12 15:02:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-12 15:02:18,548 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 15:02:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 15:02:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-12 15:02:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-12 15:02:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 15:02:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 15:02:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 15:02:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 15:02:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 15:02:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 15:02:24,368 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 15:02:24,368 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 15:02:24,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:02:24 BoogieIcfgContainer [2020-10-12 15:02:24,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 15:02:24,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 15:02:24,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 15:02:24,383 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 15:02:24,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 03:02:16" (1/3) ... [2020-10-12 15:02:24,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f87a4cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:02:24, skipping insertion in model container [2020-10-12 15:02:24,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:02:18" (2/3) ... [2020-10-12 15:02:24,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f87a4cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:02:24, skipping insertion in model container [2020-10-12 15:02:24,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:02:24" (3/3) ... [2020-10-12 15:02:24,387 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label35.c [2020-10-12 15:02:24,398 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 15:02:24,407 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 15:02:24,426 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 15:02:24,455 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 15:02:24,455 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 15:02:24,456 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 15:02:24,456 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 15:02:24,456 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 15:02:24,456 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 15:02:24,456 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 15:02:24,456 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 15:02:24,492 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-12 15:02:24,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-12 15:02:24,499 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:02:24,500 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:02:24,500 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:02:24,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:02:24,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1586237553, now seen corresponding path program 1 times [2020-10-12 15:02:24,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:02:24,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143273921] [2020-10-12 15:02:24,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:02:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:24,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:25,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:25,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 15:02:25,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:25,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 312 [2020-10-12 15:02:25,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:25,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:02:25,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:02:25,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 15:02:25,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 15:02:25,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:02:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:25,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:25,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:25,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:02:25,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:25,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 15:02:25,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:25,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:02:25,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:25,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:02:25,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:25,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:02:25,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1143273921] [2020-10-12 15:02:25,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:02:25,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 15:02:25,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043608168] [2020-10-12 15:02:25,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 15:02:25,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:02:25,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 15:02:25,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 15:02:25,148 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 4 states. [2020-10-12 15:02:34,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:02:34,726 INFO L93 Difference]: Finished difference Result 2270 states and 4349 transitions. [2020-10-12 15:02:34,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:02:34,729 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-12 15:02:34,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:02:34,777 INFO L225 Difference]: With dead ends: 2270 [2020-10-12 15:02:34,777 INFO L226 Difference]: Without dead ends: 1432 [2020-10-12 15:02:34,790 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 [2020-10-12 15:02:34,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-12 15:02:34,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1425. [2020-10-12 15:02:34,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-10-12 15:02:34,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2229 transitions. [2020-10-12 15:02:34,973 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2229 transitions. Word has length 20 [2020-10-12 15:02:34,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:02:34,974 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 2229 transitions. [2020-10-12 15:02:34,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 15:02:34,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2229 transitions. [2020-10-12 15:02:34,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-12 15:02:34,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:02:34,982 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 15:02:34,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 15:02:34,983 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:02:34,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:02:34,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1748288524, now seen corresponding path program 1 times [2020-10-12 15:02:34,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:02:34,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1116323334] [2020-10-12 15:02:34,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:02:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:35,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:35,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:35,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:35,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-12 15:02:35,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:02:35,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 915 [2020-10-12 15:02:35,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:35,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:02:35,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:02:35,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 15:02:35,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:02:36,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:02:36,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:36,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:36,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:36,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:02:36,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:36,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:02:36,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:36,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:02:36,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:36,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:02:36,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:36,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:02:36,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:36,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:36,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:36,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 15:02:36,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:36,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-12 15:02:36,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:36,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:02:36,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:02:36,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 15:02:36,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-12 15:02:36,312 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:02:36,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1116323334] [2020-10-12 15:02:36,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:02:36,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 15:02:36,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123290353] [2020-10-12 15:02:36,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:02:36,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:02:36,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:02:36,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:02:36,317 INFO L87 Difference]: Start difference. First operand 1425 states and 2229 transitions. Second operand 7 states. [2020-10-12 15:02:47,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:02:47,804 INFO L93 Difference]: Finished difference Result 4352 states and 6838 transitions. [2020-10-12 15:02:47,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:02:47,805 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 90 [2020-10-12 15:02:47,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:02:47,821 INFO L225 Difference]: With dead ends: 4352 [2020-10-12 15:02:47,822 INFO L226 Difference]: Without dead ends: 2933 [2020-10-12 15:02:47,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:02:47,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2020-10-12 15:02:47,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 2878. [2020-10-12 15:02:47,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2878 states. [2020-10-12 15:02:47,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2878 states to 2878 states and 3876 transitions. [2020-10-12 15:02:47,944 INFO L78 Accepts]: Start accepts. Automaton has 2878 states and 3876 transitions. Word has length 90 [2020-10-12 15:02:47,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:02:47,945 INFO L479 AbstractCegarLoop]: Abstraction has 2878 states and 3876 transitions. [2020-10-12 15:02:47,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:02:47,945 INFO L276 IsEmpty]: Start isEmpty. Operand 2878 states and 3876 transitions. [2020-10-12 15:02:47,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-12 15:02:47,956 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:02:47,957 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:02:47,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 15:02:47,957 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:02:47,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:02:47,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1697369380, now seen corresponding path program 1 times [2020-10-12 15:02:47,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:02:47,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [769059562] [2020-10-12 15:02:47,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:02:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:48,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:48,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:48,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:48,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-12 15:02:48,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:02:48,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 629 [2020-10-12 15:02:48,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:48,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:02:48,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:02:48,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 15:02:48,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:02:48,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:02:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:48,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:48,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:48,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:02:48,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:48,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:02:48,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:48,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:02:48,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:48,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:02:48,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:48,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:02:48,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:48,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:49,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:49,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:02:49,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:49,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-10-12 15:02:49,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:49,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:02:49,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:02:49,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 15:02:49,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:49,164 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:02:49,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [769059562] [2020-10-12 15:02:49,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:02:49,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 15:02:49,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456533630] [2020-10-12 15:02:49,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:02:49,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:02:49,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:02:49,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:02:49,168 INFO L87 Difference]: Start difference. First operand 2878 states and 3876 transitions. Second operand 7 states. [2020-10-12 15:02:57,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:02:57,793 INFO L93 Difference]: Finished difference Result 7305 states and 9573 transitions. [2020-10-12 15:02:57,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 15:02:57,797 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2020-10-12 15:02:57,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:02:57,820 INFO L225 Difference]: With dead ends: 7305 [2020-10-12 15:02:57,820 INFO L226 Difference]: Without dead ends: 4433 [2020-10-12 15:02:57,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-12 15:02:57,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4433 states. [2020-10-12 15:02:57,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4433 to 4332. [2020-10-12 15:02:57,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4332 states. [2020-10-12 15:02:57,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4332 states to 4332 states and 5419 transitions. [2020-10-12 15:02:57,941 INFO L78 Accepts]: Start accepts. Automaton has 4332 states and 5419 transitions. Word has length 110 [2020-10-12 15:02:57,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:02:57,944 INFO L479 AbstractCegarLoop]: Abstraction has 4332 states and 5419 transitions. [2020-10-12 15:02:57,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:02:57,944 INFO L276 IsEmpty]: Start isEmpty. Operand 4332 states and 5419 transitions. [2020-10-12 15:02:57,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-12 15:02:57,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:02:57,952 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:02:57,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 15:02:57,952 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:02:57,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:02:57,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1038841099, now seen corresponding path program 1 times [2020-10-12 15:02:57,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:02:57,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1230270825] [2020-10-12 15:02:57,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:02:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:58,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:58,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:59,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:59,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-12 15:02:59,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:02:59,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1034 [2020-10-12 15:02:59,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:59,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:02:59,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:02:59,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-12 15:02:59,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:59,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:02:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:59,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:59,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:59,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:02:59,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:59,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:02:59,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:59,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:02:59,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:59,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:02:59,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:59,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:02:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:59,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:59,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:59,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 15:02:59,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:59,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-12 15:02:59,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:59,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:02:59,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:02:59,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-12 15:02:59,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:59,459 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:02:59,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1230270825] [2020-10-12 15:02:59,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:02:59,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 15:02:59,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033306034] [2020-10-12 15:02:59,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:02:59,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:02:59,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:02:59,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:02:59,462 INFO L87 Difference]: Start difference. First operand 4332 states and 5419 transitions. Second operand 7 states. [2020-10-12 15:03:10,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:03:10,432 INFO L93 Difference]: Finished difference Result 11702 states and 15080 transitions. [2020-10-12 15:03:10,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 15:03:10,434 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 117 [2020-10-12 15:03:10,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:03:10,466 INFO L225 Difference]: With dead ends: 11702 [2020-10-12 15:03:10,466 INFO L226 Difference]: Without dead ends: 7376 [2020-10-12 15:03:10,478 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-12 15:03:10,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7376 states. [2020-10-12 15:03:10,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7376 to 5842. [2020-10-12 15:03:10,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5842 states. [2020-10-12 15:03:10,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5842 states to 5842 states and 7186 transitions. [2020-10-12 15:03:10,660 INFO L78 Accepts]: Start accepts. Automaton has 5842 states and 7186 transitions. Word has length 117 [2020-10-12 15:03:10,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:03:10,663 INFO L479 AbstractCegarLoop]: Abstraction has 5842 states and 7186 transitions. [2020-10-12 15:03:10,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:03:10,663 INFO L276 IsEmpty]: Start isEmpty. Operand 5842 states and 7186 transitions. [2020-10-12 15:03:10,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2020-10-12 15:03:10,670 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:03:10,671 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:03:10,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 15:03:10,672 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:03:10,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:03:10,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1582379922, now seen corresponding path program 1 times [2020-10-12 15:03:10,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:03:10,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [998069088] [2020-10-12 15:03:10,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:03:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:10,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:10,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:11,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:15,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:15,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 431 [2020-10-12 15:03:15,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:03:15,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-12 15:03:15,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:15,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:03:15,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:03:15,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-12 15:03:15,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:15,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:03:15,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:15,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:15,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:15,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:03:15,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:15,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:03:15,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:15,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:03:15,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:15,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:03:15,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:15,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:03:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:16,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:16,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:16,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:03:16,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:16,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 608 [2020-10-12 15:03:16,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:16,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:03:16,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:03:16,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-12 15:03:16,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:16,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:03:16,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:16,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:16,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:16,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:03:16,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:16,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 15:03:16,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:16,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:03:16,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:03:16,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 15:03:16,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:16,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-12 15:03:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:17,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:17,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:17,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:03:17,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:17,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 15:03:17,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:17,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:17,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-12 15:03:17,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:17,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:17,243 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 26 proven. 85 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 15:03:17,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [998069088] [2020-10-12 15:03:17,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:03:17,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 15:03:17,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979284923] [2020-10-12 15:03:17,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 15:03:17,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:03:17,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 15:03:17,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:03:17,246 INFO L87 Difference]: Start difference. First operand 5842 states and 7186 transitions. Second operand 8 states. [2020-10-12 15:03:34,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:03:34,265 INFO L93 Difference]: Finished difference Result 17045 states and 21506 transitions. [2020-10-12 15:03:34,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 15:03:34,267 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 417 [2020-10-12 15:03:34,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:03:34,326 INFO L225 Difference]: With dead ends: 17045 [2020-10-12 15:03:34,326 INFO L226 Difference]: Without dead ends: 11209 [2020-10-12 15:03:34,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-12 15:03:34,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11209 states. [2020-10-12 15:03:34,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11209 to 11132. [2020-10-12 15:03:34,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11132 states. [2020-10-12 15:03:34,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11132 states to 11132 states and 13607 transitions. [2020-10-12 15:03:34,634 INFO L78 Accepts]: Start accepts. Automaton has 11132 states and 13607 transitions. Word has length 417 [2020-10-12 15:03:34,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:03:34,635 INFO L479 AbstractCegarLoop]: Abstraction has 11132 states and 13607 transitions. [2020-10-12 15:03:34,635 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 15:03:34,635 INFO L276 IsEmpty]: Start isEmpty. Operand 11132 states and 13607 transitions. [2020-10-12 15:03:34,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 945 [2020-10-12 15:03:34,676 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:03:34,677 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:03:34,677 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 15:03:34,678 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:03:34,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:03:34,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1576074682, now seen corresponding path program 1 times [2020-10-12 15:03:34,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:03:34,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1672905809] [2020-10-12 15:03:34,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:03:34,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:35,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:35,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:39,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:39,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 964 [2020-10-12 15:03:39,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:03:39,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 15:03:39,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:39,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:03:39,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 944 [2020-10-12 15:03:39,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 15:03:39,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:03:40,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:03:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:40,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:40,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:40,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:03:40,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:40,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:03:40,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:40,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:40,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:40,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:40,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:03:40,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:03:40,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:40,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:40,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:40,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:03:40,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:40,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-12 15:03:40,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:40,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:40,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:40,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:40,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:40,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:03:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:40,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:40,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:40,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:03:40,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:40,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-12 15:03:40,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:40,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:40,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:40,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:40,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:03:40,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:03:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:40,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:40,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:40,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:03:40,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:40,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:03:40,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:40,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:40,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:40,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:40,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:03:41,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:03:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:41,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:41,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:41,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:03:41,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:41,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-12 15:03:41,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:41,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:41,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:41,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:41,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:03:41,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:03:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:41,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:41,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:41,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:03:41,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:41,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 15:03:41,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:41,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:41,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:41,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:41,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:41,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:03:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:41,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:41,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:41,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:03:41,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:41,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 15:03:41,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:41,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:03:41,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:41,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 15:03:41,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:42,160 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 42 proven. 3 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2020-10-12 15:03:42,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1672905809] [2020-10-12 15:03:42,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:03:42,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:03:42,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236267812] [2020-10-12 15:03:42,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:03:42,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:03:42,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:03:42,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:03:42,164 INFO L87 Difference]: Start difference. First operand 11132 states and 13607 transitions. Second operand 5 states. [2020-10-12 15:03:52,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:03:52,072 INFO L93 Difference]: Finished difference Result 23708 states and 30366 transitions. [2020-10-12 15:03:52,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:03:52,074 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 944 [2020-10-12 15:03:52,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:03:52,117 INFO L225 Difference]: With dead ends: 23708 [2020-10-12 15:03:52,118 INFO L226 Difference]: Without dead ends: 14010 [2020-10-12 15:03:52,140 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:03:52,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14010 states. [2020-10-12 15:03:52,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14010 to 13998. [2020-10-12 15:03:52,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13998 states. [2020-10-12 15:03:52,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13998 states to 13998 states and 16969 transitions. [2020-10-12 15:03:52,420 INFO L78 Accepts]: Start accepts. Automaton has 13998 states and 16969 transitions. Word has length 944 [2020-10-12 15:03:52,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:03:52,424 INFO L479 AbstractCegarLoop]: Abstraction has 13998 states and 16969 transitions. [2020-10-12 15:03:52,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:03:52,424 INFO L276 IsEmpty]: Start isEmpty. Operand 13998 states and 16969 transitions. [2020-10-12 15:03:52,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 952 [2020-10-12 15:03:52,471 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:03:52,473 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:03:52,473 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 15:03:52,473 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:03:52,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:03:52,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1745462687, now seen corresponding path program 1 times [2020-10-12 15:03:52,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:03:52,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2052569507] [2020-10-12 15:03:52,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:03:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:52,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:53,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:57,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:57,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 971 [2020-10-12 15:03:57,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:03:57,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4797 [2020-10-12 15:03:57,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:57,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:03:57,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 951 [2020-10-12 15:03:57,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 15:03:57,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:57,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:03:57,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:57,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:57,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:57,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:03:57,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:57,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:03:57,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:57,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:57,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:57,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:57,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:03:57,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:03:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:57,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:58,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:58,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:03:58,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:58,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-12 15:03:58,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:58,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:58,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:58,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:58,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:03:58,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:03:58,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:58,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:58,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:58,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:03:58,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:58,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-12 15:03:58,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:58,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:58,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:58,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:58,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:03:58,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:03:58,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:58,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:58,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:58,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:03:58,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:58,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:03:58,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:58,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:58,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:58,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:58,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:03:58,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:03:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:58,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:59,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:59,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:03:59,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:59,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-12 15:03:59,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:59,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:59,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:59,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:59,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:59,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:03:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:59,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:59,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:59,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:03:59,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:59,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 15:03:59,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:59,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:59,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:59,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:59,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:59,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:03:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:59,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:59,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:59,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 15:03:59,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:59,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 15:03:59,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:59,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:03:59,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:59,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 15:03:59,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:59,940 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 42 proven. 3 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2020-10-12 15:03:59,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2052569507] [2020-10-12 15:03:59,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:03:59,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:03:59,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439008280] [2020-10-12 15:03:59,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:03:59,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:03:59,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:03:59,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:03:59,947 INFO L87 Difference]: Start difference. First operand 13998 states and 16969 transitions. Second operand 5 states. [2020-10-12 15:04:11,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:04:11,949 INFO L93 Difference]: Finished difference Result 33721 states and 40967 transitions. [2020-10-12 15:04:11,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:04:11,951 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 951 [2020-10-12 15:04:11,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:04:12,027 INFO L225 Difference]: With dead ends: 33721 [2020-10-12 15:04:12,028 INFO L226 Difference]: Without dead ends: 18201 [2020-10-12 15:04:12,057 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:04:12,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18201 states. [2020-10-12 15:04:12,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18201 to 18184. [2020-10-12 15:04:12,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18184 states. [2020-10-12 15:04:12,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18184 states to 18184 states and 20829 transitions. [2020-10-12 15:04:12,422 INFO L78 Accepts]: Start accepts. Automaton has 18184 states and 20829 transitions. Word has length 951 [2020-10-12 15:04:12,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:04:12,425 INFO L479 AbstractCegarLoop]: Abstraction has 18184 states and 20829 transitions. [2020-10-12 15:04:12,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:04:12,425 INFO L276 IsEmpty]: Start isEmpty. Operand 18184 states and 20829 transitions. [2020-10-12 15:04:12,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 977 [2020-10-12 15:04:12,441 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:04:12,444 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:04:12,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 15:04:12,445 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:04:12,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:04:12,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1393747834, now seen corresponding path program 1 times [2020-10-12 15:04:12,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:04:12,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [186319593] [2020-10-12 15:04:12,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:04:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:12,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:13,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:17,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:17,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 996 [2020-10-12 15:04:17,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:04:17,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4807 [2020-10-12 15:04:17,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:17,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:04:17,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 976 [2020-10-12 15:04:17,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 15:04:17,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:17,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:04:17,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:17,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:17,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:17,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:04:17,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:17,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:04:17,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:17,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:17,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:17,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:17,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:17,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:04:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:17,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:17,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:17,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:04:17,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:17,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-12 15:04:17,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:17,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:17,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:17,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:17,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:18,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:04:18,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:18,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:18,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:18,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:04:18,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:18,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-12 15:04:18,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:18,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:18,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:18,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:18,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:18,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:04:18,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:18,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:18,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:18,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:04:18,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:18,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:04:18,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:18,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:18,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:18,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:18,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:18,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:04:18,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:18,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:18,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:18,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:04:18,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:18,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 15:04:18,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:18,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:18,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:18,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:18,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:18,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:04:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:18,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:18,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:18,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:04:18,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:18,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 15:04:18,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:18,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:18,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:18,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:18,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:04:18,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:04:18,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:18,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:18,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:18,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:04:18,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:18,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 15:04:18,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:18,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:04:18,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:18,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 15:04:18,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:19,043 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 42 proven. 3 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2020-10-12 15:04:19,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [186319593] [2020-10-12 15:04:19,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:04:19,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:04:19,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872795062] [2020-10-12 15:04:19,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:04:19,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:04:19,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:04:19,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:04:19,046 INFO L87 Difference]: Start difference. First operand 18184 states and 20829 transitions. Second operand 5 states. [2020-10-12 15:04:29,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:04:29,602 INFO L93 Difference]: Finished difference Result 41395 states and 48803 transitions. [2020-10-12 15:04:29,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:04:29,603 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 976 [2020-10-12 15:04:29,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:04:29,664 INFO L225 Difference]: With dead ends: 41395 [2020-10-12 15:04:29,664 INFO L226 Difference]: Without dead ends: 21728 [2020-10-12 15:04:29,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:04:29,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21728 states. [2020-10-12 15:04:30,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21728 to 21720. [2020-10-12 15:04:30,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21720 states. [2020-10-12 15:04:30,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21720 states to 21720 states and 24094 transitions. [2020-10-12 15:04:30,129 INFO L78 Accepts]: Start accepts. Automaton has 21720 states and 24094 transitions. Word has length 976 [2020-10-12 15:04:30,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:04:30,131 INFO L479 AbstractCegarLoop]: Abstraction has 21720 states and 24094 transitions. [2020-10-12 15:04:30,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:04:30,132 INFO L276 IsEmpty]: Start isEmpty. Operand 21720 states and 24094 transitions. [2020-10-12 15:04:30,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1034 [2020-10-12 15:04:30,151 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:04:30,153 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:04:30,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 15:04:30,154 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:04:30,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:04:30,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1511520348, now seen corresponding path program 1 times [2020-10-12 15:04:30,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:04:30,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2082509153] [2020-10-12 15:04:30,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:04:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:30,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:31,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:32,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:35,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:35,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1055 [2020-10-12 15:04:35,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:04:35,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-12 15:04:35,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:35,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:04:35,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-12 15:04:35,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 15:04:35,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:35,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:04:35,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:35,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:35,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:35,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:04:35,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:35,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:04:35,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:35,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:35,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:35,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:35,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:35,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:04:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:35,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:35,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:35,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:04:35,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:35,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-12 15:04:35,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:35,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:35,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:35,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:35,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:35,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:04:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:35,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:35,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:35,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:04:35,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:35,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 15:04:35,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:35,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:35,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:35,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:35,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:35,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:04:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:35,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:35,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:35,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:04:35,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:35,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:04:35,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:35,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:35,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:35,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:35,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:36,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:04:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:36,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:36,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:36,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:04:36,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:36,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-12 15:04:36,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:36,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:04:36,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:36,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-12 15:04:36,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:36,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:04:36,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:36,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:36,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:36,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:04:36,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:36,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 15:04:36,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:36,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:04:36,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:36,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 15:04:36,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:36,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:04:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:36,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:36,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:36,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:04:36,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:36,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 15:04:36,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:36,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:04:36,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:04:36,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 15:04:36,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:36,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-12 15:04:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:36,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:36,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:36,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 15:04:36,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:36,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 15:04:36,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:36,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:36,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-12 15:04:36,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:36,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:37,117 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 242 proven. 88 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2020-10-12 15:04:37,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2082509153] [2020-10-12 15:04:37,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:04:37,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:04:37,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521849943] [2020-10-12 15:04:37,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:04:37,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:04:37,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:04:37,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:04:37,120 INFO L87 Difference]: Start difference. First operand 21720 states and 24094 transitions. Second operand 7 states. [2020-10-12 15:04:47,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:04:47,519 INFO L93 Difference]: Finished difference Result 53576 states and 60862 transitions. [2020-10-12 15:04:47,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 15:04:47,521 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1033 [2020-10-12 15:04:47,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:04:47,592 INFO L225 Difference]: With dead ends: 53576 [2020-10-12 15:04:47,592 INFO L226 Difference]: Without dead ends: 33274 [2020-10-12 15:04:47,625 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:04:47,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33274 states. [2020-10-12 15:04:48,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33274 to 33240. [2020-10-12 15:04:48,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33240 states. [2020-10-12 15:04:48,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33240 states to 33240 states and 37161 transitions. [2020-10-12 15:04:48,100 INFO L78 Accepts]: Start accepts. Automaton has 33240 states and 37161 transitions. Word has length 1033 [2020-10-12 15:04:48,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:04:48,101 INFO L479 AbstractCegarLoop]: Abstraction has 33240 states and 37161 transitions. [2020-10-12 15:04:48,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:04:48,101 INFO L276 IsEmpty]: Start isEmpty. Operand 33240 states and 37161 transitions. [2020-10-12 15:04:48,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1136 [2020-10-12 15:04:48,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:04:48,127 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:04:48,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 15:04:48,128 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:04:48,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:04:48,128 INFO L82 PathProgramCache]: Analyzing trace with hash 582633968, now seen corresponding path program 1 times [2020-10-12 15:04:48,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:04:48,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1801382039] [2020-10-12 15:04:48,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:04:48,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:48,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:48,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:50,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:51,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:53,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:53,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1157 [2020-10-12 15:04:53,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:04:53,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5218 [2020-10-12 15:04:53,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:53,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:04:53,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 976 [2020-10-12 15:04:53,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 15:04:53,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:53,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:04:53,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:53,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:53,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:53,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:04:53,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:53,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:04:53,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:53,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:53,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:53,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:53,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:53,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:04:53,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:53,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:53,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:53,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:04:53,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:53,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-12 15:04:53,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:53,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:53,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:53,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:53,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:53,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:04:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:53,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:53,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:53,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:04:53,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:53,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 15:04:53,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:53,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:53,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:53,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:53,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:54,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:04:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:54,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:54,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:54,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:04:54,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:54,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:04:54,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:54,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:54,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:54,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:54,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:54,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:04:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:54,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:54,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:54,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:04:54,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:54,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 15:04:54,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:54,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:54,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:54,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:54,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:54,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:04:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:54,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:54,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:54,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:04:54,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:54,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:04:54,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:54,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:54,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:54,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:54,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:54,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:04:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:54,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:54,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:54,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:04:54,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:54,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 15:04:54,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:54,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:04:54,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:54,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 15:04:54,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:54,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-12 15:04:54,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:54,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:54,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:54,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:54,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 15:04:54,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:04:54,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-12 15:04:54,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:54,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:04:54,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:04:54,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-12 15:04:54,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:55,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 485 proven. 6 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2020-10-12 15:04:55,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1801382039] [2020-10-12 15:04:55,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:04:55,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 15:04:55,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275334476] [2020-10-12 15:04:55,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 15:04:55,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:04:55,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 15:04:55,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:04:55,712 INFO L87 Difference]: Start difference. First operand 33240 states and 37161 transitions. Second operand 6 states. [2020-10-12 15:05:04,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:05:04,026 INFO L93 Difference]: Finished difference Result 77904 states and 89429 transitions. [2020-10-12 15:05:04,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 15:05:04,028 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1135 [2020-10-12 15:05:04,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:05:04,144 INFO L225 Difference]: With dead ends: 77904 [2020-10-12 15:05:04,145 INFO L226 Difference]: Without dead ends: 46082 [2020-10-12 15:05:04,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:05:04,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46082 states. [2020-10-12 15:05:05,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46082 to 46029. [2020-10-12 15:05:05,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46029 states. [2020-10-12 15:05:05,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46029 states to 46029 states and 51740 transitions. [2020-10-12 15:05:05,115 INFO L78 Accepts]: Start accepts. Automaton has 46029 states and 51740 transitions. Word has length 1135 [2020-10-12 15:05:05,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:05:05,116 INFO L479 AbstractCegarLoop]: Abstraction has 46029 states and 51740 transitions. [2020-10-12 15:05:05,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 15:05:05,116 INFO L276 IsEmpty]: Start isEmpty. Operand 46029 states and 51740 transitions. [2020-10-12 15:05:05,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1171 [2020-10-12 15:05:05,137 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:05:05,141 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:05:05,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 15:05:05,142 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:05:05,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:05:05,143 INFO L82 PathProgramCache]: Analyzing trace with hash -492744092, now seen corresponding path program 1 times [2020-10-12 15:05:05,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:05:05,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [189886811] [2020-10-12 15:05:05,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:05:05,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:05,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:05,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:07,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:07,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:10,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:10,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1194 [2020-10-12 15:05:10,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:05:10,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 15:05:10,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:10,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:05:10,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1084 [2020-10-12 15:05:10,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 15:05:10,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:10,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:05:10,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:10,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:10,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:10,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:05:10,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:10,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:05:10,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:10,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:10,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:10,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:10,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:10,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:05:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:10,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:10,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:10,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:05:10,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:10,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-12 15:05:10,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:10,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:10,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:10,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:10,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:10,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:05:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:10,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:10,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:10,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:05:10,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:10,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 15:05:10,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:10,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:10,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:10,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:10,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:10,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:05:10,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:10,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:10,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:10,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:05:10,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:10,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:05:10,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:10,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:10,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:10,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:10,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:10,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:05:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:10,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:10,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:10,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:05:10,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:10,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 15:05:10,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:10,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:10,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:10,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:10,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:11,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:05:11,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:11,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:11,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:11,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:05:11,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:11,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:05:11,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:11,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:11,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:11,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:11,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:11,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:05:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:11,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:11,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:11,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:05:11,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:11,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 15:05:11,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:11,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:11,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:11,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:11,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:11,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-12 15:05:11,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:11,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:11,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:11,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-12 15:05:11,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:11,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 15:05:11,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:11,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:05:11,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:11,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-12 15:05:11,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:11,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1070 [2020-10-12 15:05:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:11,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:11,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:11,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-12 15:05:11,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:11,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-12 15:05:11,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:11,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:05:11,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:05:11,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-12 15:05:11,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:12,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1286 backedges. 420 proven. 2 refuted. 0 times theorem prover too weak. 864 trivial. 0 not checked. [2020-10-12 15:05:12,235 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [189886811] [2020-10-12 15:05:12,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:05:12,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:05:12,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685442929] [2020-10-12 15:05:12,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:05:12,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:05:12,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:05:12,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:05:12,238 INFO L87 Difference]: Start difference. First operand 46029 states and 51740 transitions. Second operand 7 states. [2020-10-12 15:05:22,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:05:22,527 INFO L93 Difference]: Finished difference Result 105658 states and 120495 transitions. [2020-10-12 15:05:22,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:05:22,528 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1170 [2020-10-12 15:05:22,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:05:22,676 INFO L225 Difference]: With dead ends: 105658 [2020-10-12 15:05:22,677 INFO L226 Difference]: Without dead ends: 61047 [2020-10-12 15:05:22,734 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:05:22,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61047 states. [2020-10-12 15:05:23,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61047 to 61031. [2020-10-12 15:05:23,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61031 states. [2020-10-12 15:05:24,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61031 states to 61031 states and 68339 transitions. [2020-10-12 15:05:24,032 INFO L78 Accepts]: Start accepts. Automaton has 61031 states and 68339 transitions. Word has length 1170 [2020-10-12 15:05:24,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:05:24,034 INFO L479 AbstractCegarLoop]: Abstraction has 61031 states and 68339 transitions. [2020-10-12 15:05:24,034 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:05:24,034 INFO L276 IsEmpty]: Start isEmpty. Operand 61031 states and 68339 transitions. [2020-10-12 15:05:24,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1375 [2020-10-12 15:05:24,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:05:24,085 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:05:24,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 15:05:24,085 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:05:24,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:05:24,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1327422047, now seen corresponding path program 1 times [2020-10-12 15:05:24,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:05:24,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [946061942] [2020-10-12 15:05:24,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:05:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:24,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:24,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:24,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:29,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:29,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1400 [2020-10-12 15:05:29,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:05:29,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-12 15:05:29,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:29,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:05:29,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1220 [2020-10-12 15:05:29,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-10-12 15:05:29,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:29,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:05:29,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:29,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:29,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:29,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:05:29,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:29,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:05:29,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:29,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:29,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:29,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:29,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:29,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:05:29,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:29,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:29,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:29,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:05:29,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:29,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-12 15:05:29,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:29,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:29,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:29,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:29,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:29,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:05:29,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:29,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:29,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:29,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:05:29,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:29,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 15:05:29,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:29,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:29,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:29,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:29,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:29,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:05:29,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:29,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:29,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:29,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:05:29,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:29,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:05:29,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:29,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:29,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:29,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:29,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:29,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:05:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:29,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:30,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:30,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:05:30,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:30,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 15:05:30,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:30,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:30,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:30,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:30,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:30,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:05:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:30,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:30,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:30,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:05:30,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:30,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:05:30,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:30,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:30,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:30,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:30,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:30,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:05:30,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:30,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:30,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:30,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 15:05:30,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:30,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 15:05:30,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:30,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:30,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:30,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:30,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:30,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-12 15:05:30,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:30,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:30,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:30,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 15:05:30,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:30,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 15:05:30,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:30,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:30,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:30,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:30,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:30,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1096 [2020-10-12 15:05:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:30,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:30,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:30,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-12 15:05:30,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:30,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 15:05:30,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:30,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:05:30,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:30,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-12 15:05:30,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:30,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1204 [2020-10-12 15:05:30,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:30,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:30,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:30,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-12 15:05:30,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:30,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-12 15:05:30,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:30,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:05:30,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:05:30,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-12 15:05:30,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:31,348 INFO L134 CoverageAnalysis]: Checked inductivity of 2114 backedges. 761 proven. 2 refuted. 0 times theorem prover too weak. 1351 trivial. 0 not checked. [2020-10-12 15:05:31,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [946061942] [2020-10-12 15:05:31,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:05:31,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:05:31,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671560603] [2020-10-12 15:05:31,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:05:31,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:05:31,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:05:31,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:05:31,351 INFO L87 Difference]: Start difference. First operand 61031 states and 68339 transitions. Second operand 7 states. [2020-10-12 15:05:44,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:05:44,360 INFO L93 Difference]: Finished difference Result 136199 states and 154711 transitions. [2020-10-12 15:05:44,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 15:05:44,366 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1374 [2020-10-12 15:05:44,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:05:44,572 INFO L225 Difference]: With dead ends: 136199 [2020-10-12 15:05:44,572 INFO L226 Difference]: Without dead ends: 76586 [2020-10-12 15:05:44,657 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:05:44,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76586 states. [2020-10-12 15:05:45,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76586 to 76582. [2020-10-12 15:05:45,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76582 states. [2020-10-12 15:05:45,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76582 states to 76582 states and 85241 transitions. [2020-10-12 15:05:45,628 INFO L78 Accepts]: Start accepts. Automaton has 76582 states and 85241 transitions. Word has length 1374 [2020-10-12 15:05:45,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:05:45,630 INFO L479 AbstractCegarLoop]: Abstraction has 76582 states and 85241 transitions. [2020-10-12 15:05:45,630 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:05:45,630 INFO L276 IsEmpty]: Start isEmpty. Operand 76582 states and 85241 transitions. [2020-10-12 15:05:45,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1382 [2020-10-12 15:05:45,663 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:05:45,664 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:05:45,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 15:05:45,665 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:05:45,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:05:45,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1617628966, now seen corresponding path program 1 times [2020-10-12 15:05:45,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:05:45,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1444886437] [2020-10-12 15:05:45,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:05:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:46,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:46,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:47,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking...