/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/Problem16_label24.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 14:28:17,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 14:28:17,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 14:28:17,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 14:28:17,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 14:28:17,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 14:28:17,585 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 14:28:17,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 14:28:17,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 14:28:17,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 14:28:17,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 14:28:17,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 14:28:17,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 14:28:17,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 14:28:17,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 14:28:17,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 14:28:17,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 14:28:17,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 14:28:17,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 14:28:17,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 14:28:17,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 14:28:17,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 14:28:17,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 14:28:17,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 14:28:17,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 14:28:17,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 14:28:17,632 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 14:28:17,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 14:28:17,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 14:28:17,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 14:28:17,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 14:28:17,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 14:28:17,638 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 14:28:17,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 14:28:17,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 14:28:17,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 14:28:17,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 14:28:17,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 14:28:17,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 14:28:17,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 14:28:17,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 14:28:17,648 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 14:28:17,687 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 14:28:17,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 14:28:17,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 14:28:17,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 14:28:17,690 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 14:28:17,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 14:28:17,691 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 14:28:17,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 14:28:17,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 14:28:17,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 14:28:17,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 14:28:17,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 14:28:17,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 14:28:17,693 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 14:28:17,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 14:28:17,694 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 14:28:17,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 14:28:17,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 14:28:17,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 14:28:17,694 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 14:28:17,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 14:28:17,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:28:17,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 14:28:17,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 14:28:17,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 14:28:17,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 14:28:17,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 14:28:17,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 14:28:17,696 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 14:28:17,696 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 14:28:17,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 14:28:17,990 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 14:28:17,994 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 14:28:17,995 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 14:28:17,996 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 14:28:17,997 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label24.c [2020-10-12 14:28:18,065 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9f538b531/f81f43870fe540e7ab99001af8a05fbc/FLAG5af4918f8 [2020-10-12 14:28:18,700 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 14:28:18,701 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label24.c [2020-10-12 14:28:18,728 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9f538b531/f81f43870fe540e7ab99001af8a05fbc/FLAG5af4918f8 [2020-10-12 14:28:18,908 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9f538b531/f81f43870fe540e7ab99001af8a05fbc [2020-10-12 14:28:18,917 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 14:28:18,918 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 14:28:18,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 14:28:18,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 14:28:18,923 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 14:28:18,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:28:18" (1/1) ... [2020-10-12 14:28:18,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fdab4ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:28:18, skipping insertion in model container [2020-10-12 14:28:18,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:28:18" (1/1) ... [2020-10-12 14:28:18,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 14:28:18,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 14:28:19,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:28:19,942 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 14:28:20,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:28:20,205 INFO L208 MainTranslator]: Completed translation [2020-10-12 14:28:20,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:28:20 WrapperNode [2020-10-12 14:28:20,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 14:28:20,208 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 14:28:20,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 14:28:20,208 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 14:28:20,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:28:20" (1/1) ... [2020-10-12 14:28:20,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:28:20" (1/1) ... [2020-10-12 14:28:20,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:28:20" (1/1) ... [2020-10-12 14:28:20,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:28:20" (1/1) ... [2020-10-12 14:28:20,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:28:20" (1/1) ... [2020-10-12 14:28:20,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:28:20" (1/1) ... [2020-10-12 14:28:20,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:28:20" (1/1) ... [2020-10-12 14:28:20,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 14:28:20,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 14:28:20,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 14:28:20,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 14:28:20,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:28:20" (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 14:28:20,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 14:28:20,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 14:28:20,521 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 14:28:20,521 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-12 14:28:20,521 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 14:28:20,521 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 14:28:20,522 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-12 14:28:20,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 14:28:20,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 14:28:20,523 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 14:28:20,523 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 14:28:20,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 14:28:20,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 14:28:22,976 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 14:28:22,977 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 14:28:22,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:28:22 BoogieIcfgContainer [2020-10-12 14:28:22,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 14:28:22,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 14:28:22,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 14:28:22,991 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 14:28:22,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 02:28:18" (1/3) ... [2020-10-12 14:28:22,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2566a0a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:28:22, skipping insertion in model container [2020-10-12 14:28:22,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:28:20" (2/3) ... [2020-10-12 14:28:22,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2566a0a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:28:22, skipping insertion in model container [2020-10-12 14:28:22,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:28:22" (3/3) ... [2020-10-12 14:28:22,996 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label24.c [2020-10-12 14:28:23,007 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 14:28:23,016 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 14:28:23,031 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 14:28:23,061 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 14:28:23,061 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 14:28:23,061 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 14:28:23,062 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 14:28:23,062 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 14:28:23,062 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 14:28:23,062 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 14:28:23,062 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 14:28:23,091 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-12 14:28:23,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-12 14:28:23,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:28:23,102 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:28:23,102 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:28:23,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:28:23,109 INFO L82 PathProgramCache]: Analyzing trace with hash 272014893, now seen corresponding path program 1 times [2020-10-12 14:28:23,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:28:23,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1047936182] [2020-10-12 14:28:23,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:28:23,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:23,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:23,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:23,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-12 14:28:23,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:23,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 379 [2020-10-12 14:28:23,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:23,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:28:23,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:28:23,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-12 14:28:23,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:28:23,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:28:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:23,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:23,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:23,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:28:23,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:23,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:28:23,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:23,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:28:23,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:23,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:28:23,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:23,852 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 14:28:23,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1047936182] [2020-10-12 14:28:23,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:28:23,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 14:28:23,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565770055] [2020-10-12 14:28:23,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:28:23,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:28:23,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:28:23,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:28:23,878 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 5 states. [2020-10-12 14:28:28,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:28:28,989 INFO L93 Difference]: Finished difference Result 1515 states and 2848 transitions. [2020-10-12 14:28:28,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 14:28:28,991 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-10-12 14:28:28,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:28:29,027 INFO L225 Difference]: With dead ends: 1515 [2020-10-12 14:28:29,027 INFO L226 Difference]: Without dead ends: 1038 [2020-10-12 14:28:29,040 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:28:29,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2020-10-12 14:28:29,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1031. [2020-10-12 14:28:29,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1031 states. [2020-10-12 14:28:29,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1642 transitions. [2020-10-12 14:28:29,155 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1642 transitions. Word has length 58 [2020-10-12 14:28:29,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:28:29,156 INFO L479 AbstractCegarLoop]: Abstraction has 1031 states and 1642 transitions. [2020-10-12 14:28:29,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:28:29,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1642 transitions. [2020-10-12 14:28:29,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-10-12 14:28:29,169 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:28:29,170 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:28:29,170 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 14:28:29,170 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:28:29,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:28:29,171 INFO L82 PathProgramCache]: Analyzing trace with hash 190582509, now seen corresponding path program 1 times [2020-10-12 14:28:29,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:28:29,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2062731649] [2020-10-12 14:28:29,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:28:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:29,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:29,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:29,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:30,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:32,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:33,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:34,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:34,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-12 14:28:34,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:28:34,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-12 14:28:34,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:34,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:28:34,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:28:34,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-12 14:28:34,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 14:28:34,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:28:34,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:34,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:34,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:34,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:28:34,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:34,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:28:34,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:34,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:28:34,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:34,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:28:34,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:28:34,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:28:34,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:34,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:34,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:34,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:34,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 14:28:34,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:28:34,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-12 14:28:34,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:34,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:28:34,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:28:34,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 14:28:34,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:28:34,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 14:28:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:34,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:34,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:34,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 14:28:34,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:34,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-12 14:28:34,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:34,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:28:34,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:28:34,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-12 14:28:34,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:35,041 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 171 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 14:28:35,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2062731649] [2020-10-12 14:28:35,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:28:35,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:28:35,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427575416] [2020-10-12 14:28:35,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:28:35,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:28:35,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:28:35,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:28:35,048 INFO L87 Difference]: Start difference. First operand 1031 states and 1642 transitions. Second operand 8 states. [2020-10-12 14:28:39,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:28:39,084 INFO L93 Difference]: Finished difference Result 2769 states and 4527 transitions. [2020-10-12 14:28:39,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:28:39,085 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2020-10-12 14:28:39,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:28:39,097 INFO L225 Difference]: With dead ends: 2769 [2020-10-12 14:28:39,097 INFO L226 Difference]: Without dead ends: 1744 [2020-10-12 14:28:39,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:28:39,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2020-10-12 14:28:39,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1727. [2020-10-12 14:28:39,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1727 states. [2020-10-12 14:28:39,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1727 states to 1727 states and 2598 transitions. [2020-10-12 14:28:39,167 INFO L78 Accepts]: Start accepts. Automaton has 1727 states and 2598 transitions. Word has length 240 [2020-10-12 14:28:39,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:28:39,169 INFO L479 AbstractCegarLoop]: Abstraction has 1727 states and 2598 transitions. [2020-10-12 14:28:39,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:28:39,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1727 states and 2598 transitions. [2020-10-12 14:28:39,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-10-12 14:28:39,175 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:28:39,175 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:28:39,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 14:28:39,175 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:28:39,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:28:39,176 INFO L82 PathProgramCache]: Analyzing trace with hash -868212803, now seen corresponding path program 1 times [2020-10-12 14:28:39,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:28:39,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2022644339] [2020-10-12 14:28:39,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:28:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:39,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:39,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:39,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:42,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:43,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:43,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 292 [2020-10-12 14:28:43,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:28:43,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4610 [2020-10-12 14:28:43,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:43,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:28:43,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:28:43,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-12 14:28:43,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:28:43,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:28:43,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:43,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:43,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:43,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:28:43,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:43,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:28:43,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:43,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:28:43,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:43,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:28:43,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:43,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:28:43,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:43,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:44,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:44,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:28:44,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:44,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-12 14:28:44,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:44,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:28:44,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:28:44,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-12 14:28:44,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:28:44,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 14:28:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:44,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:44,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:44,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 14:28:44,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:44,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 14:28:44,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:44,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:44,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-12 14:28:44,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:44,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:28:44,375 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 102 proven. 102 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 14:28:44,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2022644339] [2020-10-12 14:28:44,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:28:44,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:28:44,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837054956] [2020-10-12 14:28:44,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:28:44,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:28:44,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:28:44,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:28:44,384 INFO L87 Difference]: Start difference. First operand 1727 states and 2598 transitions. Second operand 7 states. [2020-10-12 14:28:48,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:28:48,092 INFO L93 Difference]: Finished difference Result 3826 states and 5736 transitions. [2020-10-12 14:28:48,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:28:48,093 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 280 [2020-10-12 14:28:48,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:28:48,109 INFO L225 Difference]: With dead ends: 3826 [2020-10-12 14:28:48,109 INFO L226 Difference]: Without dead ends: 2105 [2020-10-12 14:28:48,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 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 14:28:48,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2105 states. [2020-10-12 14:28:48,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2105 to 1739. [2020-10-12 14:28:48,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1739 states. [2020-10-12 14:28:48,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1739 states to 1739 states and 2342 transitions. [2020-10-12 14:28:48,177 INFO L78 Accepts]: Start accepts. Automaton has 1739 states and 2342 transitions. Word has length 280 [2020-10-12 14:28:48,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:28:48,186 INFO L479 AbstractCegarLoop]: Abstraction has 1739 states and 2342 transitions. [2020-10-12 14:28:48,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:28:48,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1739 states and 2342 transitions. [2020-10-12 14:28:48,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2020-10-12 14:28:48,196 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:28:48,198 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-12 14:28:48,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 14:28:48,198 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:28:48,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:28:48,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1577759175, now seen corresponding path program 1 times [2020-10-12 14:28:48,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:28:48,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1992549375] [2020-10-12 14:28:48,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:28:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:48,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:48,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:48,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:52,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:53,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:53,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:53,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 423 [2020-10-12 14:28:53,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:28:53,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-12 14:28:53,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:53,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:28:53,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:28:53,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-12 14:28:53,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:53,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:28:53,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:53,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:53,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:53,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:28:53,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:53,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 14:28:53,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:53,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:28:53,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:53,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:28:53,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:28:53,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:28:53,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:53,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:53,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:53,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:28:53,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:53,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-12 14:28:53,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:53,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:28:53,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:28:53,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-12 14:28:53,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:28:53,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 14:28:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:53,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:53,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:53,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:28:53,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:53,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-12 14:28:53,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:53,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:53,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:28:53,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:53,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:28:53,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2020-10-12 14:28:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:53,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:54,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:54,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 14:28:54,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:54,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-12 14:28:54,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:54,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:54,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-12 14:28:54,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:54,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:28:54,314 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 153 proven. 212 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2020-10-12 14:28:54,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1992549375] [2020-10-12 14:28:54,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:28:54,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:28:54,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023220709] [2020-10-12 14:28:54,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:28:54,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:28:54,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:28:54,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:28:54,319 INFO L87 Difference]: Start difference. First operand 1739 states and 2342 transitions. Second operand 7 states. [2020-10-12 14:28:58,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:28:58,602 INFO L93 Difference]: Finished difference Result 5282 states and 7226 transitions. [2020-10-12 14:28:58,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:28:58,603 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 409 [2020-10-12 14:28:58,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:28:58,623 INFO L225 Difference]: With dead ends: 5282 [2020-10-12 14:28:58,623 INFO L226 Difference]: Without dead ends: 3549 [2020-10-12 14:28:58,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 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 14:28:58,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3549 states. [2020-10-12 14:28:58,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3549 to 3168. [2020-10-12 14:28:58,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3168 states. [2020-10-12 14:28:58,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3168 states to 3168 states and 4022 transitions. [2020-10-12 14:28:58,727 INFO L78 Accepts]: Start accepts. Automaton has 3168 states and 4022 transitions. Word has length 409 [2020-10-12 14:28:58,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:28:58,728 INFO L479 AbstractCegarLoop]: Abstraction has 3168 states and 4022 transitions. [2020-10-12 14:28:58,728 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:28:58,728 INFO L276 IsEmpty]: Start isEmpty. Operand 3168 states and 4022 transitions. [2020-10-12 14:28:58,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2020-10-12 14:28:58,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:28:58,741 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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] [2020-10-12 14:28:58,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 14:28:58,742 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:28:58,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:28:58,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1835195062, now seen corresponding path program 1 times [2020-10-12 14:28:58,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:28:58,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [818515033] [2020-10-12 14:28:58,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:28:58,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:58,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:58,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:59,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:00,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:03,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:03,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 525 [2020-10-12 14:29:03,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:29:03,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5066 [2020-10-12 14:29:03,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:03,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:29:03,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:29:03,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 14:29:03,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:29:03,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:29:03,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:03,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:03,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:03,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:29:03,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:03,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 14:29:03,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:03,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:29:03,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:03,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:29:03,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:29:03,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:29:04,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:04,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:04,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:04,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-12 14:29:04,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:04,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-12 14:29:04,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:04,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:29:04,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:29:04,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-12 14:29:04,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:29:04,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-12 14:29:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:04,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:04,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:04,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:29:04,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:04,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 14:29:04,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:04,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:04,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-12 14:29:04,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:04,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:29:04,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-12 14:29:04,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:04,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:04,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:04,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:29:04,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:04,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 14:29:04,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:04,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:04,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:29:04,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:04,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:04,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-12 14:29:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:04,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:04,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:04,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 14:29:04,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:04,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 14:29:04,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:04,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:04,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-12 14:29:04,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:04,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:04,812 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 204 proven. 285 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2020-10-12 14:29:04,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [818515033] [2020-10-12 14:29:04,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:29:04,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:29:04,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581807691] [2020-10-12 14:29:04,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:29:04,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:29:04,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:29:04,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:29:04,816 INFO L87 Difference]: Start difference. First operand 3168 states and 4022 transitions. Second operand 7 states. [2020-10-12 14:29:08,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:29:08,690 INFO L93 Difference]: Finished difference Result 7078 states and 8945 transitions. [2020-10-12 14:29:08,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:29:08,692 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 509 [2020-10-12 14:29:08,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:29:08,709 INFO L225 Difference]: With dead ends: 7078 [2020-10-12 14:29:08,709 INFO L226 Difference]: Without dead ends: 3916 [2020-10-12 14:29:08,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:29:08,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3916 states. [2020-10-12 14:29:08,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3916 to 3859. [2020-10-12 14:29:08,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3859 states. [2020-10-12 14:29:08,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3859 states to 3859 states and 4783 transitions. [2020-10-12 14:29:08,815 INFO L78 Accepts]: Start accepts. Automaton has 3859 states and 4783 transitions. Word has length 509 [2020-10-12 14:29:08,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:29:08,815 INFO L479 AbstractCegarLoop]: Abstraction has 3859 states and 4783 transitions. [2020-10-12 14:29:08,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:29:08,815 INFO L276 IsEmpty]: Start isEmpty. Operand 3859 states and 4783 transitions. [2020-10-12 14:29:08,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 601 [2020-10-12 14:29:08,832 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:29:08,833 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:29:08,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 14:29:08,833 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:29:08,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:29:08,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1795512690, now seen corresponding path program 1 times [2020-10-12 14:29:08,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:29:08,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2018211839] [2020-10-12 14:29:08,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:29:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:08,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:09,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:09,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:09,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:11,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:13,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:13,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 618 [2020-10-12 14:29:13,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:29:13,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-12 14:29:13,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:13,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:29:13,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-12 14:29:13,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-12 14:29:13,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:14,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:29:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:14,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:14,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:14,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:29:14,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:14,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:29:14,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:14,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:14,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:14,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:14,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:14,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:29:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:14,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:14,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:14,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 14:29:14,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:14,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 14:29:14,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:14,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:29:14,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:14,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-12 14:29:14,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:14,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 14:29:14,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:14,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:14,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:14,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:14,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-12 14:29:14,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:29:14,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-12 14:29:14,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:14,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:29:14,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:29:14,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-12 14:29:14,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:14,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-12 14:29:14,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:14,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:14,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:14,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:29:14,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:14,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-12 14:29:14,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:14,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:29:14,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:29:14,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-12 14:29:14,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:14,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2020-10-12 14:29:14,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:14,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:14,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:14,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:29:14,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:14,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-12 14:29:14,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:14,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:14,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:29:14,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:14,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:14,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2020-10-12 14:29:14,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:14,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:14,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:14,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 14:29:14,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:14,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:29:14,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:14,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:14,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-12 14:29:14,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:14,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:14,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1248 backedges. 447 proven. 505 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2020-10-12 14:29:14,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2018211839] [2020-10-12 14:29:14,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:29:14,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 14:29:14,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381753475] [2020-10-12 14:29:14,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 14:29:14,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:29:14,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 14:29:14,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-12 14:29:14,926 INFO L87 Difference]: Start difference. First operand 3859 states and 4783 transitions. Second operand 9 states. [2020-10-12 14:29:19,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:29:19,613 INFO L93 Difference]: Finished difference Result 8446 states and 10670 transitions. [2020-10-12 14:29:19,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 14:29:19,614 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 600 [2020-10-12 14:29:19,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:29:19,634 INFO L225 Difference]: With dead ends: 8446 [2020-10-12 14:29:19,635 INFO L226 Difference]: Without dead ends: 4534 [2020-10-12 14:29:19,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2020-10-12 14:29:19,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4534 states. [2020-10-12 14:29:19,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4534 to 4516. [2020-10-12 14:29:19,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4516 states. [2020-10-12 14:29:19,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4516 states to 4516 states and 4952 transitions. [2020-10-12 14:29:19,751 INFO L78 Accepts]: Start accepts. Automaton has 4516 states and 4952 transitions. Word has length 600 [2020-10-12 14:29:19,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:29:19,752 INFO L479 AbstractCegarLoop]: Abstraction has 4516 states and 4952 transitions. [2020-10-12 14:29:19,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 14:29:19,752 INFO L276 IsEmpty]: Start isEmpty. Operand 4516 states and 4952 transitions. [2020-10-12 14:29:19,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 759 [2020-10-12 14:29:19,781 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:29:19,781 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 3, 3, 3, 3, 3, 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] [2020-10-12 14:29:19,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 14:29:19,782 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:29:19,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:29:19,782 INFO L82 PathProgramCache]: Analyzing trace with hash 256383466, now seen corresponding path program 1 times [2020-10-12 14:29:19,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:29:19,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [694490400] [2020-10-12 14:29:19,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:29:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:19,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:20,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:20,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:24,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:24,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:24,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 776 [2020-10-12 14:29:24,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:29:24,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-12 14:29:24,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:24,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:29:24,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 497 [2020-10-12 14:29:24,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 14:29:24,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:25,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:29:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:25,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:25,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:25,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:29:25,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:25,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:29:25,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:25,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:25,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:25,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:25,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:25,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:29:25,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:25,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:25,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:25,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:29:25,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:25,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 14:29:25,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:25,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:25,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:25,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:25,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:25,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:29:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:25,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:25,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:25,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:29:25,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:25,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:29:25,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:25,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:25,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:25,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:25,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:25,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2020-10-12 14:29:25,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:25,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:25,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:25,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:29:25,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:25,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 14:29:25,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:25,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:29:25,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:25,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 14:29:25,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:25,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2020-10-12 14:29:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:25,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:25,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:25,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:29:25,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:25,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-12 14:29:25,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:25,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:29:25,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:29:25,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 14:29:25,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:25,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-12 14:29:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:25,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:25,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:25,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 14:29:25,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:25,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:29:25,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:25,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:25,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-12 14:29:25,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:25,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:26,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1372 backedges. 598 proven. 106 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2020-10-12 14:29:26,018 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [694490400] [2020-10-12 14:29:26,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:29:26,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:29:26,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867757341] [2020-10-12 14:29:26,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:29:26,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:29:26,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:29:26,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:29:26,021 INFO L87 Difference]: Start difference. First operand 4516 states and 4952 transitions. Second operand 8 states. [2020-10-12 14:29:30,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:29:30,122 INFO L93 Difference]: Finished difference Result 11766 states and 13203 transitions. [2020-10-12 14:29:30,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 14:29:30,129 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 758 [2020-10-12 14:29:30,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:29:30,163 INFO L225 Difference]: With dead ends: 11766 [2020-10-12 14:29:30,163 INFO L226 Difference]: Without dead ends: 7932 [2020-10-12 14:29:30,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-12 14:29:30,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7932 states. [2020-10-12 14:29:30,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7932 to 6907. [2020-10-12 14:29:30,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6907 states. [2020-10-12 14:29:30,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6907 states to 6907 states and 7610 transitions. [2020-10-12 14:29:30,407 INFO L78 Accepts]: Start accepts. Automaton has 6907 states and 7610 transitions. Word has length 758 [2020-10-12 14:29:30,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:29:30,408 INFO L479 AbstractCegarLoop]: Abstraction has 6907 states and 7610 transitions. [2020-10-12 14:29:30,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:29:30,408 INFO L276 IsEmpty]: Start isEmpty. Operand 6907 states and 7610 transitions. [2020-10-12 14:29:30,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 878 [2020-10-12 14:29:30,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:29:30,433 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:29:30,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 14:29:30,433 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:29:30,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:29:30,434 INFO L82 PathProgramCache]: Analyzing trace with hash 2122550278, now seen corresponding path program 1 times [2020-10-12 14:29:30,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:29:30,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1485691246] [2020-10-12 14:29:30,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:29:30,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:30,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:30,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:31,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:32,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:35,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:35,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:35,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 893 [2020-10-12 14:29:35,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:29:35,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-12 14:29:35,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:35,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:29:35,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 560 [2020-10-12 14:29:35,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 332 [2020-10-12 14:29:35,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:29:35,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:29:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:35,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:35,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:35,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:29:35,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:35,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:29:35,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:35,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:35,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:35,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:35,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:35,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:29:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:35,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:35,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:35,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:29:35,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:35,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 14:29:35,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:35,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:35,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:35,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:35,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:35,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:29:35,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:35,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:35,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:35,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-12 14:29:35,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:35,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:29:35,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:35,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:35,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:35,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:35,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:35,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-12 14:29:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:36,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:36,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:36,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:29:36,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:36,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 14:29:36,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:36,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:29:36,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:36,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-12 14:29:36,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:36,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2020-10-12 14:29:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:36,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:36,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:36,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:36,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:29:36,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:29:36,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 504 [2020-10-12 14:29:36,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:36,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:29:36,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:29:36,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-12 14:29:36,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:37,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1201 backedges. 696 proven. 53 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2020-10-12 14:29:37,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1485691246] [2020-10-12 14:29:37,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:29:37,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 14:29:37,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066205573] [2020-10-12 14:29:37,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 14:29:37,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:29:37,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 14:29:37,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:29:37,133 INFO L87 Difference]: Start difference. First operand 6907 states and 7610 transitions. Second operand 6 states. [2020-10-12 14:29:39,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:29:39,465 INFO L93 Difference]: Finished difference Result 13162 states and 14618 transitions. [2020-10-12 14:29:39,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 14:29:39,466 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 877 [2020-10-12 14:29:39,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:29:39,504 INFO L225 Difference]: With dead ends: 13162 [2020-10-12 14:29:39,504 INFO L226 Difference]: Without dead ends: 6937 [2020-10-12 14:29:39,518 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:29:39,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6937 states. [2020-10-12 14:29:39,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6937 to 6907. [2020-10-12 14:29:39,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6907 states. [2020-10-12 14:29:39,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6907 states to 6907 states and 7503 transitions. [2020-10-12 14:29:39,656 INFO L78 Accepts]: Start accepts. Automaton has 6907 states and 7503 transitions. Word has length 877 [2020-10-12 14:29:39,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:29:39,659 INFO L479 AbstractCegarLoop]: Abstraction has 6907 states and 7503 transitions. [2020-10-12 14:29:39,659 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 14:29:39,659 INFO L276 IsEmpty]: Start isEmpty. Operand 6907 states and 7503 transitions. [2020-10-12 14:29:39,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1032 [2020-10-12 14:29:39,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:29:39,700 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:29:39,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 14:29:39,700 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:29:39,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:29:39,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1767533044, now seen corresponding path program 1 times [2020-10-12 14:29:39,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:29:39,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1612255295] [2020-10-12 14:29:39,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:29:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:39,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:40,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:40,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:44,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:44,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1051 [2020-10-12 14:29:44,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:29:44,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-12 14:29:44,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:44,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:29:44,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-12 14:29:44,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-12 14:29:44,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:45,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:29:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:45,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:45,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:45,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:29:45,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:45,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:29:45,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:45,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:45,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:45,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:45,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:45,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:29:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:45,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:45,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:45,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:29:45,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:45,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-12 14:29:45,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:45,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:29:45,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:45,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-12 14:29:45,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:45,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:29:45,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:45,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:45,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:45,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-12 14:29:45,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:45,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-12 14:29:45,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:45,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:29:45,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:29:45,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-12 14:29:45,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:45,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-12 14:29:45,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:45,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:45,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:45,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:29:45,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:45,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-12 14:29:45,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:45,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:45,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-12 14:29:45,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:45,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:29:45,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2020-10-12 14:29:45,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:45,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:45,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:45,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 14:29:45,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:45,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-12 14:29:45,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:45,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:45,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-12 14:29:45,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:45,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:29:45,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 696 [2020-10-12 14:29:45,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:45,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:45,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:45,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:29:45,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:45,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 14:29:45,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:45,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:45,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:29:45,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:45,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:45,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 806 [2020-10-12 14:29:45,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:45,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:46,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:46,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-12 14:29:46,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:46,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-12 14:29:46,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:46,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:46,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-12 14:29:46,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:46,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:46,686 INFO L134 CoverageAnalysis]: Checked inductivity of 2357 backedges. 482 proven. 549 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked. [2020-10-12 14:29:46,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1612255295] [2020-10-12 14:29:46,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:29:46,687 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:29:46,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330245736] [2020-10-12 14:29:46,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:29:46,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:29:46,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:29:46,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:29:46,689 INFO L87 Difference]: Start difference. First operand 6907 states and 7503 transitions. Second operand 7 states. [2020-10-12 14:29:49,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:29:49,347 INFO L93 Difference]: Finished difference Result 14162 states and 15510 transitions. [2020-10-12 14:29:49,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:29:49,348 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1031 [2020-10-12 14:29:49,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:29:49,382 INFO L225 Difference]: With dead ends: 14162 [2020-10-12 14:29:49,382 INFO L226 Difference]: Without dead ends: 7937 [2020-10-12 14:29:49,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 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 14:29:49,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7937 states. [2020-10-12 14:29:49,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7937 to 7927. [2020-10-12 14:29:49,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7927 states. [2020-10-12 14:29:49,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7927 states to 7927 states and 8640 transitions. [2020-10-12 14:29:49,534 INFO L78 Accepts]: Start accepts. Automaton has 7927 states and 8640 transitions. Word has length 1031 [2020-10-12 14:29:49,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:29:49,536 INFO L479 AbstractCegarLoop]: Abstraction has 7927 states and 8640 transitions. [2020-10-12 14:29:49,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:29:49,536 INFO L276 IsEmpty]: Start isEmpty. Operand 7927 states and 8640 transitions. [2020-10-12 14:29:49,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1195 [2020-10-12 14:29:49,568 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:29:49,569 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 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, 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, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:29:49,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 14:29:49,569 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:29:49,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:29:49,570 INFO L82 PathProgramCache]: Analyzing trace with hash -2147299060, now seen corresponding path program 1 times [2020-10-12 14:29:49,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:29:49,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [87471582] [2020-10-12 14:29:49,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:29:49,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:49,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:50,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:50,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:51,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:54,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:54,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1216 [2020-10-12 14:29:54,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:29:54,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-12 14:29:54,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:54,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:29:54,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:29:54,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-12 14:29:54,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:54,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:29:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:54,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:54,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:54,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:29:54,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:54,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:29:54,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:54,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:29:54,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:54,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:29:54,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:54,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:29:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:55,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:55,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:55,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:55,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-12 14:29:55,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:29:55,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-10-12 14:29:55,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:55,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:29:55,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:29:55,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 248 [2020-10-12 14:29:55,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:55,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-12 14:29:55,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:55,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:55,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:55,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-12 14:29:55,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:55,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-12 14:29:55,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:55,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:29:55,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:29:55,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-12 14:29:55,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:56,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-12 14:29:56,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:56,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:56,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:56,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:29:56,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:56,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:29:56,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:56,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:56,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-12 14:29:56,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:56,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:56,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-12 14:29:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:56,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:56,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:56,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:29:56,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:56,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:29:56,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:56,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:56,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-12 14:29:56,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:56,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:56,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2020-10-12 14:29:56,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:56,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:56,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:56,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 14:29:56,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:56,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 14:29:56,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:56,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:56,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-12 14:29:56,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:56,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:56,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 859 [2020-10-12 14:29:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:56,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:56,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:56,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:29:56,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:56,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 14:29:56,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:56,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:56,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:29:56,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:56,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:56,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-12 14:29:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:56,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:56,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:56,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-12 14:29:56,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:56,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-12 14:29:56,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:56,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:56,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-12 14:29:56,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:56,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:59,598 INFO L134 CoverageAnalysis]: Checked inductivity of 2918 backedges. 618 proven. 1232 refuted. 0 times theorem prover too weak. 1068 trivial. 0 not checked. [2020-10-12 14:29:59,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [87471582] [2020-10-12 14:29:59,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:29:59,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:29:59,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953016678] [2020-10-12 14:29:59,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:29:59,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:29:59,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:29:59,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:29:59,601 INFO L87 Difference]: Start difference. First operand 7927 states and 8640 transitions. Second operand 8 states. [2020-10-12 14:30:02,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:30:02,055 INFO L93 Difference]: Finished difference Result 15517 states and 16935 transitions. [2020-10-12 14:30:02,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:30:02,056 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1194 [2020-10-12 14:30:02,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:30:02,083 INFO L225 Difference]: With dead ends: 15517 [2020-10-12 14:30:02,083 INFO L226 Difference]: Without dead ends: 8272 [2020-10-12 14:30:02,096 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:30:02,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8272 states. [2020-10-12 14:30:02,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8272 to 8264. [2020-10-12 14:30:02,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8264 states. [2020-10-12 14:30:02,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8264 states to 8264 states and 8984 transitions. [2020-10-12 14:30:02,243 INFO L78 Accepts]: Start accepts. Automaton has 8264 states and 8984 transitions. Word has length 1194 [2020-10-12 14:30:02,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:30:02,244 INFO L479 AbstractCegarLoop]: Abstraction has 8264 states and 8984 transitions. [2020-10-12 14:30:02,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:30:02,245 INFO L276 IsEmpty]: Start isEmpty. Operand 8264 states and 8984 transitions. [2020-10-12 14:30:02,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1229 [2020-10-12 14:30:02,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:30:02,280 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:30:02,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 14:30:02,281 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:30:02,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:30:02,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1339283771, now seen corresponding path program 1 times [2020-10-12 14:30:02,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:30:02,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [236618570] [2020-10-12 14:30:02,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:30:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:02,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:02,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:02,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:05,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:07,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:07,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1252 [2020-10-12 14:30:07,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:30:07,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5087 [2020-10-12 14:30:07,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:07,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:30:07,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 905 [2020-10-12 14:30:07,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 14:30:07,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:07,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:30:07,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:07,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:07,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:07,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:30:07,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:07,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:30:07,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:07,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:07,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:07,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:07,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:07,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:30:07,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:07,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:07,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:07,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:30:07,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:07,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 14:30:07,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:07,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:07,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:07,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:07,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:07,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:30:07,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:07,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:07,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:07,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:30:07,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:07,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 14:30:07,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:07,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:07,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:07,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:07,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:08,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:30:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:08,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:08,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:08,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:30:08,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:08,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:30:08,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:08,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:08,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:08,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:08,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:08,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:30:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:08,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:08,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:08,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:30:08,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:08,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 14:30:08,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:08,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:08,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:08,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:08,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:08,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-12 14:30:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:08,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:08,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:08,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:30:08,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:08,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-12 14:30:08,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:08,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:08,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:08,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:08,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:08,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-12 14:30:08,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:08,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:08,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:08,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 14:30:08,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:08,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-12 14:30:08,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:08,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:30:08,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:08,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-12 14:30:08,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:08,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2020-10-12 14:30:08,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:08,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:08,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:08,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:30:08,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:08,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-12 14:30:08,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:08,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:30:08,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:30:08,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 14:30:08,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:08,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-12 14:30:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:08,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:08,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:08,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-12 14:30:08,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:08,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-12 14:30:08,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:08,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:08,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-12 14:30:08,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:08,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:30:10,235 INFO L134 CoverageAnalysis]: Checked inductivity of 3695 backedges. 1058 proven. 109 refuted. 0 times theorem prover too weak. 2528 trivial. 0 not checked. [2020-10-12 14:30:10,235 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [236618570] [2020-10-12 14:30:10,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:30:10,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:30:10,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479659901] [2020-10-12 14:30:10,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:30:10,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:30:10,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:30:10,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:30:10,237 INFO L87 Difference]: Start difference. First operand 8264 states and 8984 transitions. Second operand 7 states. [2020-10-12 14:30:13,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:30:13,327 INFO L93 Difference]: Finished difference Result 17224 states and 18822 transitions. [2020-10-12 14:30:13,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:30:13,329 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1228 [2020-10-12 14:30:13,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:30:13,358 INFO L225 Difference]: With dead ends: 17224 [2020-10-12 14:30:13,358 INFO L226 Difference]: Without dead ends: 9642 [2020-10-12 14:30:13,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:30:13,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9642 states. [2020-10-12 14:30:13,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9642 to 9289. [2020-10-12 14:30:13,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9289 states. [2020-10-12 14:30:13,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9289 states to 9289 states and 10042 transitions. [2020-10-12 14:30:13,536 INFO L78 Accepts]: Start accepts. Automaton has 9289 states and 10042 transitions. Word has length 1228 [2020-10-12 14:30:13,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:30:13,537 INFO L479 AbstractCegarLoop]: Abstraction has 9289 states and 10042 transitions. [2020-10-12 14:30:13,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:30:13,537 INFO L276 IsEmpty]: Start isEmpty. Operand 9289 states and 10042 transitions. [2020-10-12 14:30:13,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1232 [2020-10-12 14:30:13,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:30:13,576 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:30:13,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 14:30:13,577 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:30:13,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:30:13,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1432897460, now seen corresponding path program 1 times [2020-10-12 14:30:13,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:30:13,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [426201486] [2020-10-12 14:30:13,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:30:13,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:14,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:14,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:17,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:18,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:19,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:19,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1251 [2020-10-12 14:30:19,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:30:19,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-12 14:30:19,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:19,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:30:19,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 741 [2020-10-12 14:30:19,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-12 14:30:19,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:19,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:30:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:19,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:19,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:19,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:30:19,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:19,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:30:19,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:19,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:19,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:19,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:19,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:19,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:30:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:19,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:19,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:19,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:30:19,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:19,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-12 14:30:19,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:19,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:19,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:19,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:19,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:19,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:30:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:19,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:19,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:19,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:30:19,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:19,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:30:19,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:19,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:19,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:19,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:19,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:19,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:30:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:19,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:19,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:19,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:30:19,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:19,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 14:30:19,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:19,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:19,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:19,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:19,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:19,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:30:19,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:19,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:19,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:19,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:30:19,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:19,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-12 14:30:19,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:19,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:30:19,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:19,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-12 14:30:19,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:19,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-12 14:30:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:19,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:20,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:20,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:30:20,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:20,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 353 [2020-10-12 14:30:20,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:20,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:30:20,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:30:20,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-12 14:30:20,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:20,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1006 [2020-10-12 14:30:20,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:20,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:20,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:20,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-12 14:30:20,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:20,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-12 14:30:20,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:20,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:20,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-12 14:30:20,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:20,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:22,395 INFO L134 CoverageAnalysis]: Checked inductivity of 2753 backedges. 1050 proven. 174 refuted. 0 times theorem prover too weak. 1529 trivial. 0 not checked. [2020-10-12 14:30:22,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [426201486] [2020-10-12 14:30:22,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:30:22,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:30:22,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869146172] [2020-10-12 14:30:22,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:30:22,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:30:22,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:30:22,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:30:22,398 INFO L87 Difference]: Start difference. First operand 9289 states and 10042 transitions. Second operand 7 states. [2020-10-12 14:30:25,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:30:25,406 INFO L93 Difference]: Finished difference Result 17908 states and 19400 transitions. [2020-10-12 14:30:25,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 14:30:25,412 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1231 [2020-10-12 14:30:25,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:30:25,448 INFO L225 Difference]: With dead ends: 17908 [2020-10-12 14:30:25,448 INFO L226 Difference]: Without dead ends: 9301 [2020-10-12 14:30:25,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:30:25,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9301 states. [2020-10-12 14:30:25,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9301 to 9289. [2020-10-12 14:30:25,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9289 states. [2020-10-12 14:30:25,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9289 states to 9289 states and 10038 transitions. [2020-10-12 14:30:25,613 INFO L78 Accepts]: Start accepts. Automaton has 9289 states and 10038 transitions. Word has length 1231 [2020-10-12 14:30:25,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:30:25,614 INFO L479 AbstractCegarLoop]: Abstraction has 9289 states and 10038 transitions. [2020-10-12 14:30:25,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:30:25,614 INFO L276 IsEmpty]: Start isEmpty. Operand 9289 states and 10038 transitions. [2020-10-12 14:30:25,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1247 [2020-10-12 14:30:25,646 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:30:25,648 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:30:25,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 14:30:25,648 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:30:25,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:30:25,649 INFO L82 PathProgramCache]: Analyzing trace with hash 741122215, now seen corresponding path program 1 times [2020-10-12 14:30:25,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:30:25,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [439086100] [2020-10-12 14:30:25,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:30:25,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:26,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:26,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:26,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:30,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:30,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1270 [2020-10-12 14:30:30,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:30:30,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5071 [2020-10-12 14:30:30,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:30,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:30:30,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 733 [2020-10-12 14:30:30,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 191 [2020-10-12 14:30:30,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:31,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:30:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:31,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:31,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:31,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:30:31,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:31,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:30:31,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:31,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:31,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:31,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:31,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:31,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:30:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:31,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:31,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:31,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:30:31,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:31,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-12 14:30:31,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:31,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:31,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:31,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:31,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:31,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:30:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:31,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:31,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:31,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:30:31,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:31,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:30:31,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:31,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:31,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:31,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:31,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:31,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:30:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:31,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:31,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:31,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:30:31,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:31,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:30:31,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:31,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:31,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:31,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:31,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:31,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:30:31,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:31,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:31,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:31,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:30:31,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:31,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:30:31,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:31,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:31,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:31,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:31,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:31,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-12 14:30:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:31,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:31,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:31,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:30:31,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:31,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 14:30:31,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:31,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:30:31,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:31,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 14:30:31,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:31,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-12 14:30:31,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:31,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:31,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:31,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 14:30:31,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:31,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-12 14:30:31,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:31,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:30:31,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:30:31,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 189 [2020-10-12 14:30:31,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:31,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 911 [2020-10-12 14:30:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:31,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:31,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:31,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:30:31,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:31,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 14:30:31,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:31,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:31,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:30:31,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:31,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:32,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1021 [2020-10-12 14:30:32,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:32,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:32,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:32,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-12 14:30:32,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:32,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-12 14:30:32,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:32,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:32,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-12 14:30:32,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:32,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:32,799 INFO L134 CoverageAnalysis]: Checked inductivity of 3673 backedges. 1117 proven. 281 refuted. 0 times theorem prover too weak. 2275 trivial. 0 not checked. [2020-10-12 14:30:32,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [439086100] [2020-10-12 14:30:32,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:30:32,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:30:32,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687396722] [2020-10-12 14:30:32,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:30:32,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:30:32,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:30:32,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:30:32,801 INFO L87 Difference]: Start difference. First operand 9289 states and 10038 transitions. Second operand 7 states. [2020-10-12 14:30:36,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:30:36,229 INFO L93 Difference]: Finished difference Result 21301 states and 23076 transitions. [2020-10-12 14:30:36,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:30:36,235 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1246 [2020-10-12 14:30:36,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:30:36,268 INFO L225 Difference]: With dead ends: 21301 [2020-10-12 14:30:36,268 INFO L226 Difference]: Without dead ends: 12694 [2020-10-12 14:30:36,288 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:30:36,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12694 states. [2020-10-12 14:30:36,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12694 to 12010. [2020-10-12 14:30:36,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12010 states. [2020-10-12 14:30:36,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12010 states to 12010 states and 12930 transitions. [2020-10-12 14:30:36,463 INFO L78 Accepts]: Start accepts. Automaton has 12010 states and 12930 transitions. Word has length 1246 [2020-10-12 14:30:36,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:30:36,464 INFO L479 AbstractCegarLoop]: Abstraction has 12010 states and 12930 transitions. [2020-10-12 14:30:36,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:30:36,465 INFO L276 IsEmpty]: Start isEmpty. Operand 12010 states and 12930 transitions. [2020-10-12 14:30:36,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1251 [2020-10-12 14:30:36,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:30:36,499 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:30:36,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 14:30:36,500 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:30:36,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:30:36,500 INFO L82 PathProgramCache]: Analyzing trace with hash -179339536, now seen corresponding path program 1 times [2020-10-12 14:30:36,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:30:36,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2013973415] [2020-10-12 14:30:36,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:30:36,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:36,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:37,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:37,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:41,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:41,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1272 [2020-10-12 14:30:41,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:30:41,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5087 [2020-10-12 14:30:41,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:41,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:30:41,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 616 [2020-10-12 14:30:41,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-12 14:30:41,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:41,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:30:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:41,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:41,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:41,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:30:41,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:41,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:30:41,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:41,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:41,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:41,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:41,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:41,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:30:41,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:41,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:42,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:42,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:30:42,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:42,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:30:42,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:42,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:42,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:42,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:42,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:42,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:30:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:42,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:42,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:42,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:30:42,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:42,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:30:42,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:42,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:42,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:42,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:42,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:42,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:30:42,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:42,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:42,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:42,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:30:42,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:42,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:30:42,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:42,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:42,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:42,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:42,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:42,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:30:42,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:42,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:42,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:42,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:30:42,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:42,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:30:42,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:42,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:30:42,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:42,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 14:30:42,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:42,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-12 14:30:42,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:42,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:42,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:42,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:30:42,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:42,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-12 14:30:42,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:42,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:30:42,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:30:42,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-12 14:30:42,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:42,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 752 [2020-10-12 14:30:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:42,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:42,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:42,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:30:42,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:42,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-12 14:30:42,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:42,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:42,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-12 14:30:42,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:42,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:42,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1025 [2020-10-12 14:30:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:42,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:42,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:42,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-12 14:30:42,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:42,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 14:30:42,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:42,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:42,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-12 14:30:42,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:42,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:43,379 INFO L134 CoverageAnalysis]: Checked inductivity of 3073 backedges. 879 proven. 284 refuted. 0 times theorem prover too weak. 1910 trivial. 0 not checked. [2020-10-12 14:30:43,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2013973415] [2020-10-12 14:30:43,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:30:43,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:30:43,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754579950] [2020-10-12 14:30:43,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:30:43,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:30:43,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:30:43,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:30:43,381 INFO L87 Difference]: Start difference. First operand 12010 states and 12930 transitions. Second operand 7 states. [2020-10-12 14:30:46,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:30:46,623 INFO L93 Difference]: Finished difference Result 24698 states and 26638 transitions. [2020-10-12 14:30:46,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:30:46,627 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1250 [2020-10-12 14:30:46,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:30:46,656 INFO L225 Difference]: With dead ends: 24698 [2020-10-12 14:30:46,657 INFO L226 Difference]: Without dead ends: 13370 [2020-10-12 14:30:46,672 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:30:46,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13370 states. [2020-10-12 14:30:46,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13370 to 12692. [2020-10-12 14:30:46,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12692 states. [2020-10-12 14:30:46,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12692 states to 12692 states and 13499 transitions. [2020-10-12 14:30:46,875 INFO L78 Accepts]: Start accepts. Automaton has 12692 states and 13499 transitions. Word has length 1250 [2020-10-12 14:30:46,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:30:46,876 INFO L479 AbstractCegarLoop]: Abstraction has 12692 states and 13499 transitions. [2020-10-12 14:30:46,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:30:46,876 INFO L276 IsEmpty]: Start isEmpty. Operand 12692 states and 13499 transitions. [2020-10-12 14:30:46,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1691 [2020-10-12 14:30:46,943 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:30:46,944 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 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, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:30:46,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 14:30:46,945 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:30:46,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:30:46,945 INFO L82 PathProgramCache]: Analyzing trace with hash 429703222, now seen corresponding path program 1 times [2020-10-12 14:30:46,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:30:46,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1633871790] [2020-10-12 14:30:46,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:30:47,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:47,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:47,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:48,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:48,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:48,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:52,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:52,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1716 [2020-10-12 14:30:52,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:30:52,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 14:30:52,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:52,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:30:52,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 787 [2020-10-12 14:30:52,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-12 14:30:52,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:52,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:30:52,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:52,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:52,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:52,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:30:52,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:52,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:30:52,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:52,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:52,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:52,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:52,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:52,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:30:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:52,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:52,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:52,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:30:52,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:52,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:30:52,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:52,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:52,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:52,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:52,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:52,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:30:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:52,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:52,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:52,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:30:52,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:52,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:30:52,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:52,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:52,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:52,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:52,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:52,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:30:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:52,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:52,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:52,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:30:52,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:52,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:30:52,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:52,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:52,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:52,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:52,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:52,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:30:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:52,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:52,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:52,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 14:30:52,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:52,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:30:52,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:52,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:52,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:52,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:52,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:52,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 633 [2020-10-12 14:30:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:52,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:52,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:52,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:30:52,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:52,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 14:30:52,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:52,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:30:52,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:52,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-12 14:30:52,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:52,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 777 [2020-10-12 14:30:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:52,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:53,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:53,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:30:53,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:53,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-12 14:30:53,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:53,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:30:53,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:30:53,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-12 14:30:53,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:53,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1050 [2020-10-12 14:30:53,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:53,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:53,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:53,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-12 14:30:53,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:53,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-12 14:30:53,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:53,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:53,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-12 14:30:53,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:53,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:53,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1302 [2020-10-12 14:30:53,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:53,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:53,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:53,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-12 14:30:53,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:53,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 14:30:53,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:53,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:53,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-12 14:30:53,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:53,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:53,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1467 [2020-10-12 14:30:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:53,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:53,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:53,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-12 14:30:53,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:53,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 14:30:53,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:53,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:53,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-12 14:30:53,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:53,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:55,940 INFO L134 CoverageAnalysis]: Checked inductivity of 5705 backedges. 1293 proven. 583 refuted. 0 times theorem prover too weak. 3829 trivial. 0 not checked. [2020-10-12 14:30:55,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1633871790] [2020-10-12 14:30:55,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:30:55,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:30:55,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961142773] [2020-10-12 14:30:55,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:30:55,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:30:55,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:30:55,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:30:55,943 INFO L87 Difference]: Start difference. First operand 12692 states and 13499 transitions. Second operand 8 states. [2020-10-12 14:30:59,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:30:59,492 INFO L93 Difference]: Finished difference Result 25400 states and 27020 transitions. [2020-10-12 14:30:59,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:30:59,493 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1690 [2020-10-12 14:30:59,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:30:59,518 INFO L225 Difference]: With dead ends: 25400 [2020-10-12 14:30:59,518 INFO L226 Difference]: Without dead ends: 13390 [2020-10-12 14:30:59,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 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 14:30:59,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13390 states. [2020-10-12 14:30:59,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13390 to 13041. [2020-10-12 14:30:59,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13041 states. [2020-10-12 14:30:59,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13041 states to 13041 states and 13861 transitions. [2020-10-12 14:30:59,712 INFO L78 Accepts]: Start accepts. Automaton has 13041 states and 13861 transitions. Word has length 1690 [2020-10-12 14:30:59,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:30:59,713 INFO L479 AbstractCegarLoop]: Abstraction has 13041 states and 13861 transitions. [2020-10-12 14:30:59,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:30:59,714 INFO L276 IsEmpty]: Start isEmpty. Operand 13041 states and 13861 transitions. [2020-10-12 14:30:59,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1784 [2020-10-12 14:30:59,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:30:59,756 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:30:59,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 14:30:59,756 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:30:59,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:30:59,757 INFO L82 PathProgramCache]: Analyzing trace with hash -736285575, now seen corresponding path program 1 times [2020-10-12 14:30:59,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:30:59,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [53903302] [2020-10-12 14:30:59,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:30:59,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:00,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:00,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:00,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:03,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:05,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:05,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1809 [2020-10-12 14:31:05,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:31:05,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 14:31:05,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:05,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:31:05,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-12 14:31:05,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-12 14:31:05,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:05,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:31:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:05,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:05,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:05,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:31:05,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:05,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:31:05,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:05,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:05,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:05,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:05,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:05,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:31:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:05,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:05,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:05,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:31:05,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:05,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-12 14:31:05,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:05,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:31:05,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:05,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-12 14:31:05,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:05,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:31:05,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:05,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:05,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:05,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:31:05,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:05,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-12 14:31:05,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:05,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:31:05,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:31:05,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-12 14:31:05,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:05,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:31:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:05,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:05,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:05,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:31:05,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:05,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 14:31:05,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:05,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:05,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-12 14:31:05,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:05,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:05,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:31:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:05,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:05,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:05,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:31:05,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:05,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:31:05,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:05,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:05,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-12 14:31:05,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:05,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:05,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-12 14:31:05,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:05,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:06,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:06,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-12 14:31:06,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:06,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-12 14:31:06,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:06,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:06,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 260 [2020-10-12 14:31:06,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:06,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:06,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 870 [2020-10-12 14:31:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:06,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:06,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:06,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:31:06,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:06,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-12 14:31:06,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:06,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:06,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-12 14:31:06,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:06,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:06,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1143 [2020-10-12 14:31:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:06,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:06,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:06,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-12 14:31:06,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:06,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-12 14:31:06,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:06,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:06,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-12 14:31:06,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:06,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:06,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1395 [2020-10-12 14:31:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:06,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:06,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:06,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-12 14:31:06,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:06,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 14:31:06,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:06,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:06,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-12 14:31:06,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:06,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:06,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1560 [2020-10-12 14:31:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:06,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:06,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:06,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-12 14:31:06,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:06,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 14:31:06,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-12 14:31:06,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:06,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:08,794 INFO L134 CoverageAnalysis]: Checked inductivity of 5894 backedges. 646 proven. 990 refuted. 0 times theorem prover too weak. 4258 trivial. 0 not checked. [2020-10-12 14:31:08,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [53903302] [2020-10-12 14:31:08,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:31:08,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:31:08,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262761499] [2020-10-12 14:31:08,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:31:08,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:31:08,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:31:08,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:31:08,797 INFO L87 Difference]: Start difference. First operand 13041 states and 13861 transitions. Second operand 8 states. [2020-10-12 14:31:13,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:31:13,671 INFO L93 Difference]: Finished difference Result 29044 states and 31855 transitions. [2020-10-12 14:31:13,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 14:31:13,672 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1783 [2020-10-12 14:31:13,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:31:13,718 INFO L225 Difference]: With dead ends: 29044 [2020-10-12 14:31:13,718 INFO L226 Difference]: Without dead ends: 16685 [2020-10-12 14:31:13,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-12 14:31:13,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16685 states. [2020-10-12 14:31:14,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16685 to 16425. [2020-10-12 14:31:14,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16425 states. [2020-10-12 14:31:14,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16425 states to 16425 states and 17368 transitions. [2020-10-12 14:31:14,142 INFO L78 Accepts]: Start accepts. Automaton has 16425 states and 17368 transitions. Word has length 1783 [2020-10-12 14:31:14,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:31:14,143 INFO L479 AbstractCegarLoop]: Abstraction has 16425 states and 17368 transitions. [2020-10-12 14:31:14,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:31:14,143 INFO L276 IsEmpty]: Start isEmpty. Operand 16425 states and 17368 transitions. [2020-10-12 14:31:14,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1968 [2020-10-12 14:31:14,202 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:31:14,204 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-12 14:31:14,204 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 14:31:14,204 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:31:14,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:31:14,205 INFO L82 PathProgramCache]: Analyzing trace with hash 447740427, now seen corresponding path program 1 times [2020-10-12 14:31:14,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:31:14,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1255423486] [2020-10-12 14:31:14,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:31:14,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:14,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:14,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:15,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:15,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:17,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:19,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:19,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1995 [2020-10-12 14:31:19,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:31:19,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-12 14:31:19,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:19,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:31:19,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1218 [2020-10-12 14:31:19,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-12 14:31:19,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:19,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:31:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:19,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:19,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:19,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:31:19,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:19,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:31:19,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:19,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:19,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:19,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:19,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:19,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:31:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:19,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:19,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:19,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:31:19,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:19,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 14:31:19,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:19,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:19,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:19,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:19,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:19,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:31:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:19,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:19,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:19,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-12 14:31:19,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:19,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:31:19,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:19,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:19,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:19,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:19,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:20,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-12 14:31:20,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:20,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:20,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:20,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:31:20,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:20,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:31:20,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:20,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:20,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:20,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:20,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:20,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-12 14:31:20,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:20,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:20,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:20,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:31:20,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:20,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:31:20,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:20,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:20,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:20,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:20,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:20,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-12 14:31:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:20,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:20,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:20,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-12 14:31:20,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:20,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 14:31:20,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:20,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:20,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:20,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:20,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:20,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 933 [2020-10-12 14:31:20,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:20,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:20,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:20,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:31:20,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:20,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-12 14:31:20,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:20,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:31:20,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:20,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-12 14:31:20,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:20,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1206 [2020-10-12 14:31:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:20,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:20,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:21,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:24,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:24,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 14:31:24,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:31:24,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3477 [2020-10-12 14:31:24,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:24,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:31:24,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:31:24,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-12 14:31:24,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:25,146 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 44 [2020-10-12 14:31:25,452 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 76 [2020-10-12 14:31:25,858 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 89 [2020-10-12 14:31:26,243 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 91 [2020-10-12 14:31:26,639 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 93 [2020-10-12 14:31:27,044 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 91 [2020-10-12 14:31:27,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:31:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:27,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:27,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:27,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 14:31:27,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:27,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:31:27,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:27,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:31:27,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:31:27,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 14:31:27,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:28,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1513 [2020-10-12 14:31:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:28,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:28,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:28,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-12 14:31:28,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:28,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-12 14:31:28,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:28,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:28,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-12 14:31:28,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:28,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:28,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1744 [2020-10-12 14:31:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:31:28,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:31:28,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:31:28,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-12 14:31:28,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:31:28,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 14:31:28,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:31:28,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:31:28,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-12 14:31:28,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:31:28,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:31:40,200 INFO L134 CoverageAnalysis]: Checked inductivity of 6523 backedges. 1712 proven. 400 refuted. 0 times theorem prover too weak. 4411 trivial. 0 not checked. [2020-10-12 14:31:40,200 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1255423486] [2020-10-12 14:31:40,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:31:40,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-12 14:31:40,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884654455] [2020-10-12 14:31:40,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 14:31:40,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:31:40,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 14:31:40,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-12 14:31:40,203 INFO L87 Difference]: Start difference. First operand 16425 states and 17368 transitions. Second operand 14 states. [2020-10-12 14:31:41,988 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 69 [2020-10-12 14:31:43,448 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 78 [2020-10-12 14:31:43,801 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 79 [2020-10-12 14:31:44,610 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 101 [2020-10-12 14:31:45,198 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 88