/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label31.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:03:03,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:03:03,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:03:03,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:03:03,603 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:03:03,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:03:03,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:03:03,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:03:03,609 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:03:03,610 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:03:03,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:03:03,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:03:03,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:03:03,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:03:03,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:03:03,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:03:03,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:03:03,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:03:03,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:03:03,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:03:03,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:03:03,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:03:03,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:03:03,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:03:03,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:03:03,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:03:03,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:03:03,629 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:03:03,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:03:03,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:03:03,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:03:03,631 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:03:03,632 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:03:03,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:03:03,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:03:03,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:03:03,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:03:03,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:03:03,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:03:03,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:03:03,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:03:03,637 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 06:03:03,659 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:03:03,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:03:03,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:03:03,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:03:03,661 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:03:03,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:03:03,662 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:03:03,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:03:03,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:03:03,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:03:03,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:03:03,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:03:03,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:03:03,663 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:03:03,663 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:03:03,663 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:03:03,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:03:03,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:03:03,664 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:03:03,664 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:03:03,664 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:03:03,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:03:03,665 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:03:03,665 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:03:03,665 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:03:03,665 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:03:03,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:03:03,666 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:03:03,666 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:03:03,666 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 06:03:03,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:03:03,959 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:03:03,971 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:03:03,973 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:03:03,975 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:03:03,975 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label31.c [2020-10-13 06:03:04,054 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/29f94eaa5/e3061e55b96343ee8fe40de6d3a970ca/FLAGc0ac2cdbe [2020-10-13 06:03:04,678 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:03:04,679 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label31.c [2020-10-13 06:03:04,692 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/29f94eaa5/e3061e55b96343ee8fe40de6d3a970ca/FLAGc0ac2cdbe [2020-10-13 06:03:04,903 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/29f94eaa5/e3061e55b96343ee8fe40de6d3a970ca [2020-10-13 06:03:04,914 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:03:04,916 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:03:04,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:03:04,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:03:04,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:03:04,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:03:04" (1/1) ... [2020-10-13 06:03:04,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d72532b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:04, skipping insertion in model container [2020-10-13 06:03:04,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:03:04" (1/1) ... [2020-10-13 06:03:04,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:03:04,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:03:05,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:03:05,394 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:03:05,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:03:05,662 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:03:05,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:05 WrapperNode [2020-10-13 06:03:05,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:03:05,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:03:05,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:03:05,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:03:05,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:05" (1/1) ... [2020-10-13 06:03:05,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:05" (1/1) ... [2020-10-13 06:03:05,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:05" (1/1) ... [2020-10-13 06:03:05,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:05" (1/1) ... [2020-10-13 06:03:05,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:05" (1/1) ... [2020-10-13 06:03:05,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:05" (1/1) ... [2020-10-13 06:03:05,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:05" (1/1) ... [2020-10-13 06:03:05,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:03:05,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:03:05,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:03:05,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:03:05,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:05" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:03:05,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:03:05,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:03:05,860 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:03:05,860 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:03:05,860 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:03:05,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:03:05,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:03:05,862 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:03:05,862 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:03:05,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:03:05,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:03:07,161 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:03:07,161 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:03:07,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:03:07 BoogieIcfgContainer [2020-10-13 06:03:07,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:03:07,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:03:07,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:03:07,173 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:03:07,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:03:04" (1/3) ... [2020-10-13 06:03:07,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303c4ccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:03:07, skipping insertion in model container [2020-10-13 06:03:07,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:05" (2/3) ... [2020-10-13 06:03:07,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303c4ccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:03:07, skipping insertion in model container [2020-10-13 06:03:07,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:03:07" (3/3) ... [2020-10-13 06:03:07,177 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label31.c [2020-10-13 06:03:07,189 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:03:07,198 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:03:07,216 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:03:07,248 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:03:07,248 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:03:07,248 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:03:07,249 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:03:07,249 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:03:07,249 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:03:07,249 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:03:07,250 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:03:07,278 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-13 06:03:07,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-13 06:03:07,291 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:07,292 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:07,293 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:07,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:07,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1379021910, now seen corresponding path program 1 times [2020-10-13 06:03:07,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:07,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [132665630] [2020-10-13 06:03:07,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:07,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:07,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:07,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:09,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:09,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-13 06:03:09,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:03:09,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1440 [2020-10-13 06:03:09,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:09,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 06:03:09,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:03:09,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:03:09,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:03:09,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:09,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:09,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:09,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:09,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:09,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:03:09,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:09,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:09,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:09,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:03:09,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:09,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:03:09,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [132665630] [2020-10-13 06:03:09,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:03:09,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 06:03:09,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576841022] [2020-10-13 06:03:09,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:03:09,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:09,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:03:09,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:03:09,978 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 12 states. [2020-10-13 06:03:10,651 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-13 06:03:10,937 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-10-13 06:03:11,306 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2020-10-13 06:03:11,795 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2020-10-13 06:03:12,139 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 84 [2020-10-13 06:03:13,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:13,147 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-13 06:03:13,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:03:13,149 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 98 [2020-10-13 06:03:13,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:13,174 INFO L225 Difference]: With dead ends: 474 [2020-10-13 06:03:13,175 INFO L226 Difference]: Without dead ends: 205 [2020-10-13 06:03:13,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:03:13,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-13 06:03:13,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-13 06:03:13,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-13 06:03:13,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-13 06:03:13,267 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 98 [2020-10-13 06:03:13,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:13,268 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-13 06:03:13,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:03:13,269 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-13 06:03:13,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-13 06:03:13,274 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:13,274 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 06:03:13,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:03:13,275 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:13,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:13,275 INFO L82 PathProgramCache]: Analyzing trace with hash -785037199, now seen corresponding path program 1 times [2020-10-13 06:03:13,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:13,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [816634180] [2020-10-13 06:03:13,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:13,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:13,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:13,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:13,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:14,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:14,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-13 06:03:14,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:03:14,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1514 [2020-10-13 06:03:14,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:14,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:14,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 06:03:14,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:03:14,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:15,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:15,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:15,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:15,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:15,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:15,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:03:15,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:15,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:15,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:15,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:15,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:03:15,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:15,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:15,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:15,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:03:15,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:15,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:03:15,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:15,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:15,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:15,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:03:15,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:15,834 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:03:15,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [816634180] [2020-10-13 06:03:15,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:15,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:15,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468841163] [2020-10-13 06:03:15,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:15,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:15,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:15,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:15,840 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-13 06:03:16,573 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2020-10-13 06:03:17,274 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2020-10-13 06:03:17,579 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-10-13 06:03:17,948 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2020-10-13 06:03:18,148 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2020-10-13 06:03:18,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:18,738 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-13 06:03:18,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:03:18,739 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 106 [2020-10-13 06:03:18,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:18,743 INFO L225 Difference]: With dead ends: 433 [2020-10-13 06:03:18,743 INFO L226 Difference]: Without dead ends: 294 [2020-10-13 06:03:18,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-13 06:03:18,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-13 06:03:18,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-13 06:03:18,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 06:03:18,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-13 06:03:18,771 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 106 [2020-10-13 06:03:18,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:18,772 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-13 06:03:18,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:18,772 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-13 06:03:18,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-13 06:03:18,776 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:18,776 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:18,776 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:03:18,777 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:18,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:18,777 INFO L82 PathProgramCache]: Analyzing trace with hash -620983057, now seen corresponding path program 1 times [2020-10-13 06:03:18,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:18,778 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1094105940] [2020-10-13 06:03:18,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:18,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:19,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:19,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:19,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 06:03:19,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:03:19,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 683 [2020-10-13 06:03:19,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:19,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:19,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:03:19,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-13 06:03:19,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:19,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:19,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:19,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:19,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:19,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:19,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:19,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:03:19,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:19,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:19,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:19,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:19,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:19,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:19,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:19,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:19,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:03:19,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:19,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:03:19,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:19,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:19,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:19,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:03:19,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:19,692 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:03:19,692 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1094105940] [2020-10-13 06:03:19,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:19,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:03:19,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998508766] [2020-10-13 06:03:19,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:03:19,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:19,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:03:19,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:03:19,697 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 6 states. [2020-10-13 06:03:21,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:21,156 INFO L93 Difference]: Finished difference Result 762 states and 1063 transitions. [2020-10-13 06:03:21,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 06:03:21,158 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2020-10-13 06:03:21,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:21,164 INFO L225 Difference]: With dead ends: 762 [2020-10-13 06:03:21,164 INFO L226 Difference]: Without dead ends: 552 [2020-10-13 06:03:21,165 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:03:21,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2020-10-13 06:03:21,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2020-10-13 06:03:21,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 552 states. [2020-10-13 06:03:21,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 739 transitions. [2020-10-13 06:03:21,235 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 739 transitions. Word has length 109 [2020-10-13 06:03:21,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:21,235 INFO L479 AbstractCegarLoop]: Abstraction has 552 states and 739 transitions. [2020-10-13 06:03:21,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:03:21,236 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 739 transitions. [2020-10-13 06:03:21,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-13 06:03:21,240 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:21,240 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:21,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:03:21,241 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:21,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:21,241 INFO L82 PathProgramCache]: Analyzing trace with hash -101420614, now seen corresponding path program 1 times [2020-10-13 06:03:21,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:21,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484915753] [2020-10-13 06:03:21,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:21,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:21,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:21,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:21,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:24,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:25,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:25,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 06:03:25,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:03:25,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4557 [2020-10-13 06:03:25,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:25,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:25,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:03:25,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:03:25,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:25,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:25,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:25,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:25,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:25,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:25,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:03:25,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:25,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:25,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:25,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:25,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:25,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:25,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:25,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:25,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:03:25,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:25,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:03:25,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:25,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:25,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:25,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:03:25,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:25,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:03:25,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:25,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:25,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:25,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 06:03:25,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:25,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:03:25,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:25,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:25,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:03:25,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:03:25,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:26,006 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:03:26,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484915753] [2020-10-13 06:03:26,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:26,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:03:26,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138062627] [2020-10-13 06:03:26,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:03:26,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:26,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:03:26,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:03:26,011 INFO L87 Difference]: Start difference. First operand 552 states and 739 transitions. Second operand 7 states. [2020-10-13 06:03:27,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:27,314 INFO L93 Difference]: Finished difference Result 1455 states and 2022 transitions. [2020-10-13 06:03:27,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 06:03:27,317 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2020-10-13 06:03:27,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:27,322 INFO L225 Difference]: With dead ends: 1455 [2020-10-13 06:03:27,322 INFO L226 Difference]: Without dead ends: 969 [2020-10-13 06:03:27,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-13 06:03:27,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2020-10-13 06:03:27,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 969. [2020-10-13 06:03:27,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 969 states. [2020-10-13 06:03:27,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1301 transitions. [2020-10-13 06:03:27,379 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1301 transitions. Word has length 118 [2020-10-13 06:03:27,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:27,379 INFO L479 AbstractCegarLoop]: Abstraction has 969 states and 1301 transitions. [2020-10-13 06:03:27,380 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:03:27,380 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1301 transitions. [2020-10-13 06:03:27,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-13 06:03:27,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:27,385 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:27,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:03:27,385 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:27,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:27,386 INFO L82 PathProgramCache]: Analyzing trace with hash -623833434, now seen corresponding path program 1 times [2020-10-13 06:03:27,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:27,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1542900288] [2020-10-13 06:03:27,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:27,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:27,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:27,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:27,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:31,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:32,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:32,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:32,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-13 06:03:32,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:03:32,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-13 06:03:32,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:32,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:32,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:03:32,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 06:03:32,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:32,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:32,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:32,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:32,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:32,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:32,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:03:32,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:32,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:32,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:32,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:32,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:32,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:32,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:32,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:32,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:03:32,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:32,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:03:32,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:32,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:32,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:32,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:03:32,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:32,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:03:32,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:32,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:32,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:32,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 06:03:32,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:32,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 06:03:32,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:32,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:32,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:03:32,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:03:32,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:32,627 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:03:32,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1542900288] [2020-10-13 06:03:32,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:32,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 06:03:32,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835466877] [2020-10-13 06:03:32,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 06:03:32,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:32,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 06:03:32,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:03:32,630 INFO L87 Difference]: Start difference. First operand 969 states and 1301 transitions. Second operand 8 states. [2020-10-13 06:03:35,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:35,018 INFO L93 Difference]: Finished difference Result 2841 states and 3832 transitions. [2020-10-13 06:03:35,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:03:35,021 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 128 [2020-10-13 06:03:35,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:35,036 INFO L225 Difference]: With dead ends: 2841 [2020-10-13 06:03:35,037 INFO L226 Difference]: Without dead ends: 1938 [2020-10-13 06:03:35,040 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-13 06:03:35,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1938 states. [2020-10-13 06:03:35,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1938 to 1392. [2020-10-13 06:03:35,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1392 states. [2020-10-13 06:03:35,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1738 transitions. [2020-10-13 06:03:35,117 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1738 transitions. Word has length 128 [2020-10-13 06:03:35,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:35,119 INFO L479 AbstractCegarLoop]: Abstraction has 1392 states and 1738 transitions. [2020-10-13 06:03:35,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 06:03:35,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1738 transitions. [2020-10-13 06:03:35,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-13 06:03:35,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:35,124 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:35,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:03:35,124 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:35,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:35,125 INFO L82 PathProgramCache]: Analyzing trace with hash -2133960485, now seen corresponding path program 1 times [2020-10-13 06:03:35,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:35,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1096591280] [2020-10-13 06:03:35,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:35,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:35,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:35,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:35,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:40,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:40,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-13 06:03:40,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:03:40,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 06:03:40,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:40,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:40,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-13 06:03:40,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:03:40,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:40,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:40,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:40,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:40,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:40,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:40,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:03:40,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:40,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:40,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:40,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:40,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:40,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:40,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:40,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:40,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:03:40,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:40,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:03:40,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:40,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:40,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:40,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:40,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:40,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:03:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:40,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:40,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:40,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:03:40,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:40,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:03:40,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:40,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:40,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:40,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:03:40,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:40,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 06:03:40,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:40,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:40,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:40,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 06:03:40,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:40,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:03:40,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:40,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:40,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:03:40,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:03:40,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:40,394 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 06:03:40,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1096591280] [2020-10-13 06:03:40,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:40,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:03:40,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444881381] [2020-10-13 06:03:40,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:03:40,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:40,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:03:40,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:03:40,397 INFO L87 Difference]: Start difference. First operand 1392 states and 1738 transitions. Second operand 7 states. [2020-10-13 06:03:42,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:42,085 INFO L93 Difference]: Finished difference Result 3020 states and 3836 transitions. [2020-10-13 06:03:42,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 06:03:42,090 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 133 [2020-10-13 06:03:42,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:42,099 INFO L225 Difference]: With dead ends: 3020 [2020-10-13 06:03:42,099 INFO L226 Difference]: Without dead ends: 1694 [2020-10-13 06:03:42,103 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:42,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2020-10-13 06:03:42,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 1678. [2020-10-13 06:03:42,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1678 states. [2020-10-13 06:03:42,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1678 states to 1678 states and 2078 transitions. [2020-10-13 06:03:42,163 INFO L78 Accepts]: Start accepts. Automaton has 1678 states and 2078 transitions. Word has length 133 [2020-10-13 06:03:42,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:42,163 INFO L479 AbstractCegarLoop]: Abstraction has 1678 states and 2078 transitions. [2020-10-13 06:03:42,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:03:42,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1678 states and 2078 transitions. [2020-10-13 06:03:42,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-13 06:03:42,168 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:42,168 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:42,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:03:42,169 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:42,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:42,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1513874957, now seen corresponding path program 1 times [2020-10-13 06:03:42,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:42,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [840614257] [2020-10-13 06:03:42,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:42,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:42,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:42,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:42,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:43,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:43,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-13 06:03:43,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:03:43,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1313 [2020-10-13 06:03:43,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:43,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:43,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 06:03:43,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:03:43,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:43,912 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:03:44,045 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 43 [2020-10-13 06:03:44,169 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 39 [2020-10-13 06:03:44,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:44,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:44,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:44,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:44,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:44,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:44,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:03:44,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:44,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:44,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:44,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:44,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:44,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:44,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:44,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:44,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:03:44,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:44,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 06:03:44,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:44,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:44,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:44,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 06:03:44,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:44,724 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:03:44,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [840614257] [2020-10-13 06:03:44,725 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:44,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:44,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004171475] [2020-10-13 06:03:44,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:44,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:44,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:44,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:44,728 INFO L87 Difference]: Start difference. First operand 1678 states and 2078 transitions. Second operand 13 states. [2020-10-13 06:03:45,342 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:03:45,775 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:03:46,279 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:03:46,579 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:03:46,860 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:03:47,316 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:03:47,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:47,628 INFO L93 Difference]: Finished difference Result 3352 states and 4205 transitions. [2020-10-13 06:03:47,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:03:47,629 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 139 [2020-10-13 06:03:47,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:47,639 INFO L225 Difference]: With dead ends: 3352 [2020-10-13 06:03:47,640 INFO L226 Difference]: Without dead ends: 1740 [2020-10-13 06:03:47,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:03:47,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1740 states. [2020-10-13 06:03:47,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1740 to 1736. [2020-10-13 06:03:47,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1736 states. [2020-10-13 06:03:47,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2148 transitions. [2020-10-13 06:03:47,708 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2148 transitions. Word has length 139 [2020-10-13 06:03:47,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:47,709 INFO L479 AbstractCegarLoop]: Abstraction has 1736 states and 2148 transitions. [2020-10-13 06:03:47,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:47,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2148 transitions. [2020-10-13 06:03:47,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-13 06:03:47,714 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:47,715 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2020-10-13 06:03:47,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:03:47,715 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:47,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:47,715 INFO L82 PathProgramCache]: Analyzing trace with hash -490429706, now seen corresponding path program 1 times [2020-10-13 06:03:47,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:47,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1133475415] [2020-10-13 06:03:47,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:47,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:47,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:47,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:48,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:51,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:52,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:52,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 06:03:52,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:03:52,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-13 06:03:52,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:52,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:52,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:03:52,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:03:52,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:52,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:52,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:52,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:52,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:52,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:52,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:52,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:52,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:52,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:52,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:52,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:52,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:52,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:52,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:52,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:52,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:52,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:03:52,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:52,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:03:52,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:52,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:52,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:52,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:03:52,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:52,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:03:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:52,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:52,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:52,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:03:52,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:52,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:03:52,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:52,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:52,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:03:52,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 06:03:52,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:52,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 06:03:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:52,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:52,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:52,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:03:52,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:52,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:03:52,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:52,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:52,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-13 06:03:52,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:52,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:52,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 06:03:52,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:53,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:53,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:53,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 06:03:53,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:53,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:03:53,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:53,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:53,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 06:03:53,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:53,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:53,070 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 68 proven. 20 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-10-13 06:03:53,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1133475415] [2020-10-13 06:03:53,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:53,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:03:53,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550205497] [2020-10-13 06:03:53,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:03:53,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:53,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:03:53,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:03:53,075 INFO L87 Difference]: Start difference. First operand 1736 states and 2148 transitions. Second operand 7 states. [2020-10-13 06:03:54,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:54,766 INFO L93 Difference]: Finished difference Result 3561 states and 4397 transitions. [2020-10-13 06:03:54,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 06:03:54,767 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 162 [2020-10-13 06:03:54,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:54,775 INFO L225 Difference]: With dead ends: 3561 [2020-10-13 06:03:54,776 INFO L226 Difference]: Without dead ends: 1715 [2020-10-13 06:03:54,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:03:54,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2020-10-13 06:03:54,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1576. [2020-10-13 06:03:54,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1576 states. [2020-10-13 06:03:54,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1807 transitions. [2020-10-13 06:03:54,829 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1807 transitions. Word has length 162 [2020-10-13 06:03:54,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:54,830 INFO L479 AbstractCegarLoop]: Abstraction has 1576 states and 1807 transitions. [2020-10-13 06:03:54,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:03:54,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1807 transitions. [2020-10-13 06:03:54,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-10-13 06:03:54,835 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:54,835 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 06:03:54,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:03:54,836 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:54,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:54,836 INFO L82 PathProgramCache]: Analyzing trace with hash -605352789, now seen corresponding path program 1 times [2020-10-13 06:03:54,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:54,837 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [938580405] [2020-10-13 06:03:54,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:54,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:54,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:54,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:54,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:56,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:56,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:57,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:58,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:59,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:59,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-13 06:03:59,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 06:03:59,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4546 [2020-10-13 06:03:59,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:59,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:59,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 06:03:59,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:03:59,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:59,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:59,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:59,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:59,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:59,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:59,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:59,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:59,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:59,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:59,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:59,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:59,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:59,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:59,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:59,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:03:59,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:59,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:59,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:59,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:59,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:59,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:59,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:59,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:03:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:59,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:59,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:59,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:03:59,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:59,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 06:03:59,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:59,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:59,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:59,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 06:03:59,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:59,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:03:59,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:59,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:59,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:59,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 06:03:59,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:59,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 06:03:59,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:59,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:59,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:03:59,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:03:59,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:59,683 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 112 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-13 06:03:59,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [938580405] [2020-10-13 06:03:59,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:59,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:03:59,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329478397] [2020-10-13 06:03:59,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:03:59,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:59,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:03:59,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:03:59,686 INFO L87 Difference]: Start difference. First operand 1576 states and 1807 transitions. Second operand 7 states. [2020-10-13 06:04:00,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:00,701 INFO L93 Difference]: Finished difference Result 3229 states and 3693 transitions. [2020-10-13 06:04:00,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 06:04:00,701 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 184 [2020-10-13 06:04:00,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:00,708 INFO L225 Difference]: With dead ends: 3229 [2020-10-13 06:04:00,708 INFO L226 Difference]: Without dead ends: 1578 [2020-10-13 06:04:00,712 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:04:00,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2020-10-13 06:04:00,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1298. [2020-10-13 06:04:00,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1298 states. [2020-10-13 06:04:00,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1426 transitions. [2020-10-13 06:04:00,751 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1426 transitions. Word has length 184 [2020-10-13 06:04:00,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:00,752 INFO L479 AbstractCegarLoop]: Abstraction has 1298 states and 1426 transitions. [2020-10-13 06:04:00,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:04:00,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1426 transitions. [2020-10-13 06:04:00,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-10-13 06:04:00,756 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:00,756 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 06:04:00,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:04:00,756 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:00,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:00,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1092195846, now seen corresponding path program 1 times [2020-10-13 06:04:00,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:00,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [308278799] [2020-10-13 06:04:00,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:00,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:00,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:00,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:00,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:03,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:04,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:04,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:05,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:05,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-13 06:04:05,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:04:05,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4602 [2020-10-13 06:04:05,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:05,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:05,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 06:04:05,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:04:05,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:05,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:05,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:05,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:05,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:05,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:05,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:05,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:05,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:05,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:05,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:05,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:05,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:05,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:05,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:05,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:05,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:05,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:05,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:05,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 06:04:05,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:05,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:05,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:05,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 06:04:05,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:05,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:05,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:05,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:05,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 06:04:05,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:05,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 06:04:05,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:05,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:05,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:04:05,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:04:05,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:05,644 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 110 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:04:05,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [308278799] [2020-10-13 06:04:05,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:05,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:04:05,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042728640] [2020-10-13 06:04:05,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:04:05,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:05,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:04:05,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:04:05,646 INFO L87 Difference]: Start difference. First operand 1298 states and 1426 transitions. Second operand 7 states. [2020-10-13 06:04:06,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:06,780 INFO L93 Difference]: Finished difference Result 3084 states and 3438 transitions. [2020-10-13 06:04:06,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 06:04:06,781 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 189 [2020-10-13 06:04:06,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:06,790 INFO L225 Difference]: With dead ends: 3084 [2020-10-13 06:04:06,790 INFO L226 Difference]: Without dead ends: 1852 [2020-10-13 06:04:06,794 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:04:06,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2020-10-13 06:04:06,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 1709. [2020-10-13 06:04:06,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1709 states. [2020-10-13 06:04:06,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 1876 transitions. [2020-10-13 06:04:06,842 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 1876 transitions. Word has length 189 [2020-10-13 06:04:06,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:06,843 INFO L479 AbstractCegarLoop]: Abstraction has 1709 states and 1876 transitions. [2020-10-13 06:04:06,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:04:06,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 1876 transitions. [2020-10-13 06:04:06,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-10-13 06:04:06,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:06,849 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, 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] [2020-10-13 06:04:06,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:04:06,850 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:06,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:06,851 INFO L82 PathProgramCache]: Analyzing trace with hash -531449778, now seen corresponding path program 1 times [2020-10-13 06:04:06,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:06,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1969728803] [2020-10-13 06:04:06,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:06,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:07,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:07,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:07,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:08,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:08,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-13 06:04:08,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:04:08,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2043 [2020-10-13 06:04:08,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:08,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:08,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-13 06:04:08,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:04:08,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:09,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:09,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:09,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:09,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:09,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:09,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:09,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:09,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:09,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:09,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:09,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:09,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:09,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:09,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:09,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:09,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:09,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:09,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:04:09,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:09,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:09,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:09,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:09,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:09,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:09,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:09,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:09,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:09,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:09,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:09,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:04:09,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:09,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:09,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:09,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:04:09,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:09,953 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-13 06:04:09,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1969728803] [2020-10-13 06:04:09,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:09,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:04:09,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735898403] [2020-10-13 06:04:09,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:04:09,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:09,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:04:09,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:04:09,955 INFO L87 Difference]: Start difference. First operand 1709 states and 1876 transitions. Second operand 14 states. [2020-10-13 06:04:10,799 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2020-10-13 06:04:11,032 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 99 [2020-10-13 06:04:11,273 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2020-10-13 06:04:11,536 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2020-10-13 06:04:12,073 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-13 06:04:12,399 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-10-13 06:04:12,783 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:04:13,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:13,139 INFO L93 Difference]: Finished difference Result 3416 states and 3781 transitions. [2020-10-13 06:04:13,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:04:13,140 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 212 [2020-10-13 06:04:13,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:13,146 INFO L225 Difference]: With dead ends: 3416 [2020-10-13 06:04:13,147 INFO L226 Difference]: Without dead ends: 1726 [2020-10-13 06:04:13,151 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=182, Invalid=418, Unknown=0, NotChecked=0, Total=600 [2020-10-13 06:04:13,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2020-10-13 06:04:13,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 1724. [2020-10-13 06:04:13,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1724 states. [2020-10-13 06:04:13,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1724 states to 1724 states and 1893 transitions. [2020-10-13 06:04:13,191 INFO L78 Accepts]: Start accepts. Automaton has 1724 states and 1893 transitions. Word has length 212 [2020-10-13 06:04:13,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:13,191 INFO L479 AbstractCegarLoop]: Abstraction has 1724 states and 1893 transitions. [2020-10-13 06:04:13,191 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:04:13,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1724 states and 1893 transitions. [2020-10-13 06:04:13,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-10-13 06:04:13,197 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:13,198 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 06:04:13,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:04:13,198 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:13,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:13,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1846852275, now seen corresponding path program 1 times [2020-10-13 06:04:13,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:13,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1281408144] [2020-10-13 06:04:13,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:13,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:13,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:13,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:13,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:13,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:16,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:16,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-10-13 06:04:16,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:04:16,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3065 [2020-10-13 06:04:16,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:16,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:16,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-10-13 06:04:16,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:04:16,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:16,900 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 39 [2020-10-13 06:04:17,031 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 38 [2020-10-13 06:04:17,172 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 36 [2020-10-13 06:04:17,310 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 34 [2020-10-13 06:04:17,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:17,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:17,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:17,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:17,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:17,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:17,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:17,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:17,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:17,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:17,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:17,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:17,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:17,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:17,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:17,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:17,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:17,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:04:17,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:17,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:17,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:17,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:17,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:17,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:17,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:17,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:17,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:17,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:17,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:17,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:04:17,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:17,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:17,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:17,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:17,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:17,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:17,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:17,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:17,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:17,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:17,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:17,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:04:17,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:17,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:17,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:17,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:04:17,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:17,740 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 121 proven. 3 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-13 06:04:17,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1281408144] [2020-10-13 06:04:17,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:17,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:17,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528122295] [2020-10-13 06:04:17,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:17,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:17,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:17,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:17,743 INFO L87 Difference]: Start difference. First operand 1724 states and 1893 transitions. Second operand 13 states. [2020-10-13 06:04:18,529 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-13 06:04:18,805 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 92 [2020-10-13 06:04:19,063 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2020-10-13 06:04:19,296 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 90 [2020-10-13 06:04:19,758 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 89 [2020-10-13 06:04:20,177 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2020-10-13 06:04:20,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:20,349 INFO L93 Difference]: Finished difference Result 3318 states and 3653 transitions. [2020-10-13 06:04:20,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:04:20,350 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 225 [2020-10-13 06:04:20,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:20,351 INFO L225 Difference]: With dead ends: 3318 [2020-10-13 06:04:20,351 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:04:20,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:04:20,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:04:20,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:04:20,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:04:20,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:04:20,358 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 225 [2020-10-13 06:04:20,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:20,358 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:04:20,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:20,359 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:04:20,359 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:04:20,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:04:20,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:04:20,982 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 40 [2020-10-13 06:04:22,153 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 249 DAG size of output: 111 [2020-10-13 06:04:22,510 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 76 [2020-10-13 06:04:22,746 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 63 [2020-10-13 06:04:22,749 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:04:22,750 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-13 06:04:22,753 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:04:22,753 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-13 06:04:22,753 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-13 06:04:22,753 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,754 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,754 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,754 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,754 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,754 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,754 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-13 06:04:22,754 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-13 06:04:22,754 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-13 06:04:22,754 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-13 06:04:22,754 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-13 06:04:22,755 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-13 06:04:22,755 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-13 06:04:22,755 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-13 06:04:22,755 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-13 06:04:22,755 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-13 06:04:22,755 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,755 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,755 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,755 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,755 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,756 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,756 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-13 06:04:22,756 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-13 06:04:22,756 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-13 06:04:22,756 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-13 06:04:22,756 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-13 06:04:22,756 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-13 06:04:22,756 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-13 06:04:22,756 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-13 06:04:22,756 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-13 06:04:22,756 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-13 06:04:22,757 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-13 06:04:22,757 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 452) no Hoare annotation was computed. [2020-10-13 06:04:22,757 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-13 06:04:22,757 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-13 06:04:22,757 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-13 06:04:22,757 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-13 06:04:22,757 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,757 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,757 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,759 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,759 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,759 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-13 06:04:22,759 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-13 06:04:22,759 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-13 06:04:22,759 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-13 06:04:22,759 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-13 06:04:22,759 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-13 06:04:22,759 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-13 06:04:22,760 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-13 06:04:22,760 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-13 06:04:22,760 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,760 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,760 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,762 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,764 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,765 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-13 06:04:22,765 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-13 06:04:22,765 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-13 06:04:22,765 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-13 06:04:22,765 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-13 06:04:22,765 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-13 06:04:22,765 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-13 06:04:22,765 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-13 06:04:22,766 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-13 06:04:22,766 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-13 06:04:22,766 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-13 06:04:22,768 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-13 06:04:22,768 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-13 06:04:22,768 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,768 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,768 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,768 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,768 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,768 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-13 06:04:22,769 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-13 06:04:22,769 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-13 06:04:22,769 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-13 06:04:22,769 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-13 06:04:22,769 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-13 06:04:22,769 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-13 06:04:22,769 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-13 06:04:22,769 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-13 06:04:22,769 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,770 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,770 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,770 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,770 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,770 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,770 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-13 06:04:22,770 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,770 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-13 06:04:22,770 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-13 06:04:22,770 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-13 06:04:22,770 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-13 06:04:22,771 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-13 06:04:22,771 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-13 06:04:22,771 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-13 06:04:22,771 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-13 06:04:22,771 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-13 06:04:22,771 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-13 06:04:22,771 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-13 06:04:22,771 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-13 06:04:22,771 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-13 06:04:22,771 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,772 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,772 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,772 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,772 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,772 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-13 06:04:22,772 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-13 06:04:22,773 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-13 06:04:22,773 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-13 06:04:22,773 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-13 06:04:22,774 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-13 06:04:22,774 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-13 06:04:22,774 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-13 06:04:22,774 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,774 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,774 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,774 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,774 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,774 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-13 06:04:22,774 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-13 06:04:22,775 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-13 06:04:22,775 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-13 06:04:22,775 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-13 06:04:22,775 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-13 06:04:22,775 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-13 06:04:22,775 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-13 06:04:22,775 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-13 06:04:22,775 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-13 06:04:22,777 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (= ~a17~0 |old(~a17~0)|)) (.cse1 (= ~a7~0 |old(~a7~0)|)) (.cse2 (= ~a21~0 |old(~a21~0)|)) (.cse3 (= ~a20~0 |old(~a20~0)|)) (.cse10 (= ~a16~0 |old(~a16~0)|)) (.cse4 (= ~a8~0 |old(~a8~0)|))) (let ((.cse8 (not (<= |old(~a16~0)| 4))) (.cse11 (not (= |calculate_output_#in~input| 3))) (.cse12 (not (= |calculate_output_#in~input| 2))) (.cse13 (not (= |calculate_output_#in~input| 4))) (.cse14 (not (= |calculate_output_#in~input| 5))) (.cse15 (not (= ~a12~0 8))) (.cse9 (= ~a21~0 1)) (.cse6 (not (<= |old(~a8~0)| 13))) (.cse16 (not (= |old(~a20~0)| 1))) (.cse7 (and .cse0 .cse1 .cse2 .cse3 .cse10 .cse4)) (.cse5 (not (= |old(~a21~0)| 1)))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= 5 ~a16~0)) (not (= 5 |old(~a16~0)|)) .cse5) (or .cse6 .cse7 .cse8) (or (not (= |old(~a17~0)| 1)) (not (= 6 |old(~a16~0)|)) (and .cse1 .cse0 .cse9 .cse3 .cse10 (= ~a8~0 15)) (and .cse11 .cse12 (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) .cse13 .cse14 (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1)))) (not (= 15 |old(~a8~0)|)) .cse5 .cse15 (not (<= |old(~a20~0)| 0)) (= |old(~a7~0)| 1)) (or (and .cse0 .cse1 .cse3 .cse10 .cse4 (<= ~a21~0 1) (<= 1 ~a21~0)) .cse8 .cse5) (or (and (not (<= |old(~a7~0)| 0)) (not (<= 2 |old(~a7~0)|))) (not (<= |old(~a16~0)| 6)) (not (<= |old(~a8~0)| 15)) (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a17~0)| 0)) .cse5 (and .cse11 .cse12 .cse13 (not (= |calculate_output_#in~input| 1)) .cse14 (not (= |calculate_output_#in~input| 6))) .cse15 (and .cse1 .cse0 .cse9 .cse3 .cse10 (<= ~a8~0 15) (<= 15 ~a8~0))) (or .cse6 .cse16 .cse7) (or .cse16 .cse7 .cse5)))) [2020-10-13 06:04:22,777 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-13 06:04:22,777 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,778 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,778 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,778 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,778 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-13 06:04:22,778 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,778 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,778 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-13 06:04:22,778 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-13 06:04:22,778 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-13 06:04:22,778 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-13 06:04:22,779 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-13 06:04:22,779 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-13 06:04:22,779 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-13 06:04:22,779 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-13 06:04:22,779 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-13 06:04:22,779 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-13 06:04:22,779 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-13 06:04:22,779 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-13 06:04:22,779 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,779 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,779 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,780 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,780 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,780 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-13 06:04:22,780 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,780 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-13 06:04:22,780 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-13 06:04:22,780 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-13 06:04:22,780 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-13 06:04:22,780 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-13 06:04:22,780 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-13 06:04:22,781 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-13 06:04:22,781 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-13 06:04:22,781 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-13 06:04:22,781 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-13 06:04:22,781 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-13 06:04:22,781 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-13 06:04:22,781 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-13 06:04:22,781 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-13 06:04:22,781 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,781 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,782 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,782 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,782 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,782 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:22,782 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-13 06:04:22,782 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-13 06:04:22,782 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-13 06:04:22,782 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-13 06:04:22,782 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-13 06:04:22,782 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-13 06:04:22,783 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-13 06:04:22,783 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-13 06:04:22,783 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-13 06:04:22,783 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-13 06:04:22,783 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:04:22,783 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (= ~a12~0 8) (= ~a8~0 15) (= ~a20~0 1) (= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-13 06:04:22,783 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:04:22,783 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:04:22,784 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 15) (= 5 ~a16~0) (= ~a7~0 0)) (not (= |old(~a17~0)| 1)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a21~0)| 1)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-10-13 06:04:22,784 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:04:22,784 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse8 (<= ~a8~0 13)) (.cse1 (= 5 main_~input~0)) (.cse2 (= main_~input~0 4)) (.cse3 (= 3 main_~input~0)) (.cse4 (= 2 main_~input~0)) (.cse7 (<= ~a16~0 4)) (.cse5 (<= ~a21~0 1)) (.cse6 (<= 1 ~a21~0)) (.cse0 (= ~a21~0 1)) (.cse9 (= ~a20~0 1))) (or (and .cse0 (= 5 ~a16~0)) (and (<= ~a16~0 6) (or .cse1 (= 6 main_~input~0) .cse2 .cse3 (= main_~input~0 1) .cse4) (<= ~a17~0 0) (or (< 1 ~a7~0) (<= ~a7~0 0)) .cse5 .cse6 (<= ~a8~0 15) (<= 15 ~a8~0)) (not (= |old(~a20~0)| 1)) (and .cse7 .cse8) (and .cse9 .cse8) (not (= |old(~a21~0)| 1)) (and (= ~a16~0 6) (or .cse1 (= ~a16~0 main_~input~0) .cse2 .cse3 (= ~a17~0 main_~input~0) .cse4) (= ~a8~0 15) .cse5 .cse6 (not (= ~a7~0 1)) (= ~a17~0 1) (<= ~a20~0 0)) (and .cse7 .cse5 .cse6) (not (= |old(~a17~0)| 1)) (not (= 5 |old(~a16~0)|)) (and .cse0 .cse9) (not (= 15 |old(~a8~0)|)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0)))) [2020-10-13 06:04:22,784 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-13 06:04:22,784 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-13 06:04:22,785 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse2 (<= ~a8~0 13)) (.cse1 (<= ~a16~0 4)) (.cse4 (<= ~a21~0 1)) (.cse5 (<= 1 ~a21~0)) (.cse0 (= ~a21~0 1)) (.cse3 (= ~a20~0 1))) (or (and .cse0 (= 5 ~a16~0)) (not (= |old(~a20~0)| 1)) (and .cse1 .cse2) (and .cse3 .cse2) (not (= |old(~a21~0)| 1)) (and .cse1 .cse4 .cse5) (not (= |old(~a17~0)| 1)) (and (= ~a16~0 6) (= ~a8~0 15) .cse4 .cse5 (not (= ~a7~0 1)) (= ~a17~0 1) (<= ~a20~0 0)) (and (<= ~a16~0 6) (<= ~a17~0 0) (or (< 1 ~a7~0) (<= ~a7~0 0)) .cse4 .cse5 (<= ~a8~0 15) (<= 15 ~a8~0)) (not (= 5 |old(~a16~0)|)) (and .cse0 .cse3) (not (= 15 |old(~a8~0)|)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0)))) [2020-10-13 06:04:22,785 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:04:22,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:04:22 BoogieIcfgContainer [2020-10-13 06:04:22,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:04:22,839 INFO L168 Benchmark]: Toolchain (without parser) took 77923.69 ms. Allocated memory was 138.9 MB in the beginning and 1.1 GB in the end (delta: 991.4 MB). Free memory was 100.4 MB in the beginning and 768.2 MB in the end (delta: -667.8 MB). Peak memory consumption was 974.5 MB. Max. memory is 7.1 GB. [2020-10-13 06:04:22,839 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 06:04:22,840 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.01 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 100.0 MB in the beginning and 170.6 MB in the end (delta: -70.6 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. [2020-10-13 06:04:22,840 INFO L168 Benchmark]: Boogie Preprocessor took 111.82 ms. Allocated memory is still 204.5 MB. Free memory was 170.6 MB in the beginning and 165.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-10-13 06:04:22,844 INFO L168 Benchmark]: RCFGBuilder took 1392.50 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 165.6 MB in the beginning and 179.6 MB in the end (delta: -14.0 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. [2020-10-13 06:04:22,844 INFO L168 Benchmark]: TraceAbstraction took 75668.07 ms. Allocated memory was 235.9 MB in the beginning and 1.1 GB in the end (delta: 894.4 MB). Free memory was 179.6 MB in the beginning and 768.2 MB in the end (delta: -588.6 MB). Peak memory consumption was 956.7 MB. Max. memory is 7.1 GB. [2020-10-13 06:04:22,854 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 746.01 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 100.0 MB in the beginning and 170.6 MB in the end (delta: -70.6 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.82 ms. Allocated memory is still 204.5 MB. Free memory was 170.6 MB in the beginning and 165.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1392.50 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 165.6 MB in the beginning and 179.6 MB in the end (delta: -14.0 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 75668.07 ms. Allocated memory was 235.9 MB in the beginning and 1.1 GB in the end (delta: 894.4 MB). Free memory was 179.6 MB in the beginning and 768.2 MB in the end (delta: -588.6 MB). Peak memory consumption was 956.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 452]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((((a21 == 1 && 5 == a16) || !(\old(a20) == 1)) || (a16 <= 4 && a8 <= 13)) || (a20 == 1 && a8 <= 13)) || !(\old(a21) == 1)) || ((a16 <= 4 && a21 <= 1) && 1 <= a21)) || !(\old(a17) == 1)) || ((((((a16 == 6 && a8 == 15) && a21 <= 1) && 1 <= a21) && !(a7 == 1)) && a17 == 1) && a20 <= 0)) || ((((((a16 <= 6 && a17 <= 0) && (1 < a7 || a7 <= 0)) && a21 <= 1) && 1 <= a21) && a8 <= 15) && 15 <= a8)) || !(5 == \old(a16))) || (a21 == 1 && a20 == 1)) || !(15 == \old(a8))) || !(a12 == 8)) || !(\old(a7) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 73.1s, OverallIterations: 12, TraceHistogramMax: 5, AutomataDifference: 25.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 325 SDtfs, 5619 SDslu, 498 SDs, 0 SdLazy, 11552 SolverSat, 1337 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 277 GetRequests, 101 SyntacticMatches, 7 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 12.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1736occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 1148 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 122 PreInvPairs, 156 NumberOfFragments, 706 HoareAnnotationTreeSize, 122 FomulaSimplifications, 3333 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2641 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 45.2s InterpolantComputationTime, 1803 NumberOfCodeBlocks, 1803 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1791 ConstructedInterpolants, 0 QuantifiedInterpolants, 2577529 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 1 PerfectInterpolantSequences, 830/868 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...