/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/Problem02_label37.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:12:03,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:12:03,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:12:03,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:12:03,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:12:03,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:12:03,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:12:03,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:12:03,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:12:03,546 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:12:03,547 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:12:03,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:12:03,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:12:03,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:12:03,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:12:03,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:12:03,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:12:03,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:12:03,562 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:12:03,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:12:03,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:12:03,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:12:03,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:12:03,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:12:03,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:12:03,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:12:03,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:12:03,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:12:03,591 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:12:03,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:12:03,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:12:03,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:12:03,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:12:03,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:12:03,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:12:03,599 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:12:03,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:12:03,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:12:03,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:12:03,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:12:03,602 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:12:03,603 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 06:12:03,639 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:12:03,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:12:03,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:12:03,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:12:03,641 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:12:03,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:12:03,642 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:12:03,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:12:03,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:12:03,642 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:12:03,642 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:12:03,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:12:03,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:12:03,643 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:12:03,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:12:03,644 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:12:03,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:12:03,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:12:03,644 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:12:03,644 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:12:03,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:12:03,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:12:03,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:12:03,645 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:12:03,645 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:12:03,646 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:12:03,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:12:03,646 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:12:03,646 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:12:03,646 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 06:12:03,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:12:03,953 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:12:03,956 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:12:03,958 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:12:03,958 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:12:03,959 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label37.c [2020-10-13 06:12:04,023 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/faf510444/67c6f3bcecab4cb5b09287eb49dd5412/FLAG0c5bf3745 [2020-10-13 06:12:04,591 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:12:04,591 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label37.c [2020-10-13 06:12:04,604 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/faf510444/67c6f3bcecab4cb5b09287eb49dd5412/FLAG0c5bf3745 [2020-10-13 06:12:04,870 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/faf510444/67c6f3bcecab4cb5b09287eb49dd5412 [2020-10-13 06:12:04,878 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:12:04,880 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:12:04,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:12:04,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:12:04,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:12:04,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:12:04" (1/1) ... [2020-10-13 06:12:04,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e0386e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:12:04, skipping insertion in model container [2020-10-13 06:12:04,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:12:04" (1/1) ... [2020-10-13 06:12:04,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:12:04,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:12:05,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:12:05,429 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:12:05,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:12:05,581 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:12:05,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:12:05 WrapperNode [2020-10-13 06:12:05,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:12:05,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:12:05,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:12:05,582 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:12:05,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:12:05" (1/1) ... [2020-10-13 06:12:05,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:12:05" (1/1) ... [2020-10-13 06:12:05,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:12:05" (1/1) ... [2020-10-13 06:12:05,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:12:05" (1/1) ... [2020-10-13 06:12:05,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:12:05" (1/1) ... [2020-10-13 06:12:05,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:12:05" (1/1) ... [2020-10-13 06:12:05,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:12:05" (1/1) ... [2020-10-13 06:12:05,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:12:05,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:12:05,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:12:05,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:12:05,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:12:05" (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 06:12:05,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:12:05,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:12:05,752 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:12:05,752 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:12:05,752 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:12:05,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:12:05,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:12:05,752 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:12:05,752 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:12:05,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:12:05,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:12:06,900 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:12:06,901 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:12:06,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:12:06 BoogieIcfgContainer [2020-10-13 06:12:06,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:12:06,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:12:06,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:12:06,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:12:06,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:12:04" (1/3) ... [2020-10-13 06:12:06,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17e42f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:12:06, skipping insertion in model container [2020-10-13 06:12:06,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:12:05" (2/3) ... [2020-10-13 06:12:06,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17e42f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:12:06, skipping insertion in model container [2020-10-13 06:12:06,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:12:06" (3/3) ... [2020-10-13 06:12:06,917 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label37.c [2020-10-13 06:12:06,929 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:12:06,938 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:12:06,954 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:12:06,981 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:12:06,981 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:12:06,982 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:12:06,982 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:12:06,982 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:12:06,982 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:12:06,983 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:12:06,983 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:12:07,008 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-10-13 06:12:07,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-13 06:12:07,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:07,024 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, 1, 1, 1, 1, 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 06:12:07,024 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:07,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:07,031 INFO L82 PathProgramCache]: Analyzing trace with hash 245582414, now seen corresponding path program 1 times [2020-10-13 06:12:07,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:07,041 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [206410454] [2020-10-13 06:12:07,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:07,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:07,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:08,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:08,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-13 06:12:08,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:12:08,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1504 [2020-10-13 06:12:08,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:08,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 06:12:08,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:12:08,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:12:08,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:12:09,344 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 39 [2020-10-13 06:12:09,604 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2020-10-13 06:12:10,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:10,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:10,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:10,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:10,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:10,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:10,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:12:10,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:10,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:10,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:10,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:12:10,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:12:10,238 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 06:12:10,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [206410454] [2020-10-13 06:12:10,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:12:10,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 06:12:10,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469315484] [2020-10-13 06:12:10,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:12:10,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:10,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:12:10,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:12:10,267 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 12 states. [2020-10-13 06:12:10,626 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2020-10-13 06:12:10,851 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2020-10-13 06:12:11,102 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 101 [2020-10-13 06:12:11,357 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 98 [2020-10-13 06:12:11,788 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2020-10-13 06:12:12,320 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2020-10-13 06:12:12,785 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2020-10-13 06:12:13,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:13,881 INFO L93 Difference]: Finished difference Result 536 states and 892 transitions. [2020-10-13 06:12:13,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:12:13,886 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 126 [2020-10-13 06:12:13,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:13,909 INFO L225 Difference]: With dead ends: 536 [2020-10-13 06:12:13,909 INFO L226 Difference]: Without dead ends: 236 [2020-10-13 06:12:13,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:12:13,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-13 06:12:13,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-10-13 06:12:13,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-13 06:12:13,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 323 transitions. [2020-10-13 06:12:13,985 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 323 transitions. Word has length 126 [2020-10-13 06:12:13,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:13,985 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 323 transitions. [2020-10-13 06:12:13,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:12:13,986 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 323 transitions. [2020-10-13 06:12:13,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-13 06:12:13,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:13,990 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:12:13,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:12:13,991 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:13,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:13,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1680117631, now seen corresponding path program 1 times [2020-10-13 06:12:13,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:13,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1756978427] [2020-10-13 06:12:13,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:14,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:14,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:14,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:15,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:15,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 06:12:15,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:12:15,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1542 [2020-10-13 06:12:15,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:15,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:12:15,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 06:12:15,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:12:15,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:16,106 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2020-10-13 06:12:16,274 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 44 [2020-10-13 06:12:16,427 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 42 [2020-10-13 06:12:16,631 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 38 [2020-10-13 06:12:16,759 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 34 [2020-10-13 06:12:16,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:16,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:16,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:16,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:16,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:16,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:12:16,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:16,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:16,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:16,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:16,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:16,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:16,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:16,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:16,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 06:12:16,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:16,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:12:16,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:16,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:16,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:16,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 06:12:16,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:17,138 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:12:17,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1756978427] [2020-10-13 06:12:17,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:17,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:12:17,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724376375] [2020-10-13 06:12:17,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:12:17,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:17,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:12:17,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:12:17,143 INFO L87 Difference]: Start difference. First operand 233 states and 323 transitions. Second operand 12 states. [2020-10-13 06:12:17,426 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-13 06:12:17,820 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 102 [2020-10-13 06:12:18,538 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2020-10-13 06:12:18,761 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 99 [2020-10-13 06:12:18,992 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2020-10-13 06:12:19,209 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 96 [2020-10-13 06:12:19,527 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-10-13 06:12:19,713 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2020-10-13 06:12:20,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:20,300 INFO L93 Difference]: Finished difference Result 549 states and 794 transitions. [2020-10-13 06:12:20,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-13 06:12:20,304 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 135 [2020-10-13 06:12:20,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:20,308 INFO L225 Difference]: With dead ends: 549 [2020-10-13 06:12:20,309 INFO L226 Difference]: Without dead ends: 236 [2020-10-13 06:12:20,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:12:20,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-13 06:12:20,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-10-13 06:12:20,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-13 06:12:20,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 308 transitions. [2020-10-13 06:12:20,344 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 308 transitions. Word has length 135 [2020-10-13 06:12:20,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:20,344 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 308 transitions. [2020-10-13 06:12:20,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:12:20,344 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 308 transitions. [2020-10-13 06:12:20,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-13 06:12:20,347 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:20,347 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:12:20,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:12:20,348 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:20,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:20,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1940104183, now seen corresponding path program 1 times [2020-10-13 06:12:20,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:20,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1302931155] [2020-10-13 06:12:20,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:20,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:20,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:20,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:21,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:21,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-13 06:12:21,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:12:21,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1578 [2020-10-13 06:12:21,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:21,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:12:21,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 06:12:21,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 06:12:21,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:22,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:22,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:22,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:22,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:22,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:22,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:12:22,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:22,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:22,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:22,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:22,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:22,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:22,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:22,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:22,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:22,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:12:22,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:22,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:12:22,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:22,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:22,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:22,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:12:22,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:22,664 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:12:22,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1302931155] [2020-10-13 06:12:22,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:22,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:12:22,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125022901] [2020-10-13 06:12:22,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:12:22,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:22,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:12:22,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:12:22,669 INFO L87 Difference]: Start difference. First operand 233 states and 308 transitions. Second operand 12 states. [2020-10-13 06:12:24,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:24,403 INFO L93 Difference]: Finished difference Result 554 states and 772 transitions. [2020-10-13 06:12:24,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:12:24,404 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 139 [2020-10-13 06:12:24,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:24,408 INFO L225 Difference]: With dead ends: 554 [2020-10-13 06:12:24,409 INFO L226 Difference]: Without dead ends: 327 [2020-10-13 06:12:24,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-10-13 06:12:24,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-13 06:12:24,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 318. [2020-10-13 06:12:24,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-13 06:12:24,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 397 transitions. [2020-10-13 06:12:24,447 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 397 transitions. Word has length 139 [2020-10-13 06:12:24,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:24,453 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 397 transitions. [2020-10-13 06:12:24,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:12:24,454 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 397 transitions. [2020-10-13 06:12:24,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-13 06:12:24,457 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:24,458 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:12:24,458 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:12:24,458 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:24,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:24,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1570635697, now seen corresponding path program 1 times [2020-10-13 06:12:24,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:24,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1375748125] [2020-10-13 06:12:24,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:24,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:24,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:25,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:25,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-13 06:12:25,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:12:25,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 544 [2020-10-13 06:12:25,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:25,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:12:25,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-13 06:12:25,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-13 06:12:25,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:25,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:25,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:25,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:25,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:25,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:25,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:25,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:12:25,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:25,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:25,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:25,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:25,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:25,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:25,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:25,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:25,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:12:25,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:25,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:12:25,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:25,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:25,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:25,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:25,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:12:25,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 06:12:25,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:25,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:25,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:25,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 06:12:25,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:25,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 06:12:25,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:25,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:25,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:25,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 06:12:25,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:25,394 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 06:12:25,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1375748125] [2020-10-13 06:12:25,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:25,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:12:25,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874304249] [2020-10-13 06:12:25,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:12:25,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:25,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:12:25,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:12:25,398 INFO L87 Difference]: Start difference. First operand 318 states and 397 transitions. Second operand 5 states. [2020-10-13 06:12:26,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:26,478 INFO L93 Difference]: Finished difference Result 724 states and 951 transitions. [2020-10-13 06:12:26,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:12:26,478 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-10-13 06:12:26,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:26,481 INFO L225 Difference]: With dead ends: 724 [2020-10-13 06:12:26,481 INFO L226 Difference]: Without dead ends: 323 [2020-10-13 06:12:26,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:12:26,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-10-13 06:12:26,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 318. [2020-10-13 06:12:26,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-13 06:12:26,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 395 transitions. [2020-10-13 06:12:26,499 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 395 transitions. Word has length 161 [2020-10-13 06:12:26,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:26,499 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 395 transitions. [2020-10-13 06:12:26,499 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:12:26,499 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 395 transitions. [2020-10-13 06:12:26,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-13 06:12:26,502 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:26,502 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:12:26,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:12:26,503 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:26,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:26,503 INFO L82 PathProgramCache]: Analyzing trace with hash 481666254, now seen corresponding path program 1 times [2020-10-13 06:12:26,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:26,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [288082343] [2020-10-13 06:12:26,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:26,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:26,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:26,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:26,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:27,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:27,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-13 06:12:27,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:12:27,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1299 [2020-10-13 06:12:27,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:27,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:12:27,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-13 06:12:27,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:12:27,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:28,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:28,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:28,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:28,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:28,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:28,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:28,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:12:28,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:28,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:28,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:28,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:28,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:28,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:28,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:28,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:28,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:28,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:12:28,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:28,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 06:12:28,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:28,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:28,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:28,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:12:28,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:28,411 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:12:28,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [288082343] [2020-10-13 06:12:28,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:28,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:12:28,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030603905] [2020-10-13 06:12:28,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:12:28,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:28,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:12:28,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:12:28,414 INFO L87 Difference]: Start difference. First operand 318 states and 395 transitions. Second operand 12 states. [2020-10-13 06:12:30,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:30,266 INFO L93 Difference]: Finished difference Result 723 states and 948 transitions. [2020-10-13 06:12:30,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 06:12:30,267 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 160 [2020-10-13 06:12:30,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:30,270 INFO L225 Difference]: With dead ends: 723 [2020-10-13 06:12:30,270 INFO L226 Difference]: Without dead ends: 401 [2020-10-13 06:12:30,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2020-10-13 06:12:30,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-13 06:12:30,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 394. [2020-10-13 06:12:30,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-13 06:12:30,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 475 transitions. [2020-10-13 06:12:30,287 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 475 transitions. Word has length 160 [2020-10-13 06:12:30,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:30,288 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 475 transitions. [2020-10-13 06:12:30,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:12:30,288 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 475 transitions. [2020-10-13 06:12:30,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-13 06:12:30,290 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:30,291 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:12:30,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:12:30,291 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:30,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:30,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1059128151, now seen corresponding path program 1 times [2020-10-13 06:12:30,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:30,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1600406472] [2020-10-13 06:12:30,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:30,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:30,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:30,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:30,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:30,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:31,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:31,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 06:12:31,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:12:31,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1567 [2020-10-13 06:12:31,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:31,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:12:31,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-13 06:12:31,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 06:12:31,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:12:32,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:32,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:32,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:32,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:32,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:32,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:12:32,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:32,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:32,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:32,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:32,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:32,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:32,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:32,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:32,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:32,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:12:32,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:32,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:12:32,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:32,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:32,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:32,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:32,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:32,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 06:12:32,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:32,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:32,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:32,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:12:32,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:32,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:12:32,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:32,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:32,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:32,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:12:32,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:32,155 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 06:12:32,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1600406472] [2020-10-13 06:12:32,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:32,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:12:32,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530466139] [2020-10-13 06:12:32,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:12:32,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:32,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:12:32,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:12:32,160 INFO L87 Difference]: Start difference. First operand 394 states and 475 transitions. Second operand 5 states. [2020-10-13 06:12:33,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:33,289 INFO L93 Difference]: Finished difference Result 874 states and 1106 transitions. [2020-10-13 06:12:33,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:12:33,292 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-10-13 06:12:33,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:33,295 INFO L225 Difference]: With dead ends: 874 [2020-10-13 06:12:33,296 INFO L226 Difference]: Without dead ends: 399 [2020-10-13 06:12:33,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:12:33,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-10-13 06:12:33,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 394. [2020-10-13 06:12:33,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-13 06:12:33,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 472 transitions. [2020-10-13 06:12:33,321 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 472 transitions. Word has length 168 [2020-10-13 06:12:33,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:33,321 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 472 transitions. [2020-10-13 06:12:33,321 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:12:33,321 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 472 transitions. [2020-10-13 06:12:33,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-13 06:12:33,324 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:33,324 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, 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] [2020-10-13 06:12:33,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:12:33,324 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:33,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:33,325 INFO L82 PathProgramCache]: Analyzing trace with hash 684596644, now seen corresponding path program 1 times [2020-10-13 06:12:33,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:33,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [477991613] [2020-10-13 06:12:33,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:33,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:33,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:33,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:34,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:34,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-13 06:12:34,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:12:34,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1607 [2020-10-13 06:12:34,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:34,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:12:34,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-13 06:12:34,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:12:34,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:35,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:35,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:35,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:35,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:35,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:35,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:35,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:12:35,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:35,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:35,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:35,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:35,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:12:35,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:35,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:35,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:35,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:35,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:12:35,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:35,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-13 06:12:35,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:35,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:35,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:35,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:12:35,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:12:35,663 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 47 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:12:35,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [477991613] [2020-10-13 06:12:35,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:35,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:12:35,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369410086] [2020-10-13 06:12:35,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:12:35,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:35,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:12:35,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:12:35,670 INFO L87 Difference]: Start difference. First operand 394 states and 472 transitions. Second operand 12 states. [2020-10-13 06:12:37,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:37,748 INFO L93 Difference]: Finished difference Result 886 states and 1110 transitions. [2020-10-13 06:12:37,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 06:12:37,750 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 177 [2020-10-13 06:12:37,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:37,753 INFO L225 Difference]: With dead ends: 886 [2020-10-13 06:12:37,754 INFO L226 Difference]: Without dead ends: 498 [2020-10-13 06:12:37,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=155, Invalid=307, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:12:37,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2020-10-13 06:12:37,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 477. [2020-10-13 06:12:37,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2020-10-13 06:12:37,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 561 transitions. [2020-10-13 06:12:37,780 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 561 transitions. Word has length 177 [2020-10-13 06:12:37,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:37,781 INFO L479 AbstractCegarLoop]: Abstraction has 477 states and 561 transitions. [2020-10-13 06:12:37,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:12:37,781 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 561 transitions. [2020-10-13 06:12:37,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-13 06:12:37,784 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:37,784 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:12:37,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:12:37,785 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:37,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:37,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1934326216, now seen corresponding path program 1 times [2020-10-13 06:12:37,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:37,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1046450302] [2020-10-13 06:12:37,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:37,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:37,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:38,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:38,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:38,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-13 06:12:38,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:12:38,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1178 [2020-10-13 06:12:38,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:38,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:12:38,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-13 06:12:38,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:12:38,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:39,447 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 34 [2020-10-13 06:12:39,582 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2020-10-13 06:12:39,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:39,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:39,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:39,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:39,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:39,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:12:39,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:39,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:39,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:39,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:39,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:12:39,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:39,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:39,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:39,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:12:39,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:39,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 06:12:39,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:39,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:39,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:39,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-13 06:12:39,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:12:40,249 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:12:40,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1046450302] [2020-10-13 06:12:40,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:40,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:12:40,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81652514] [2020-10-13 06:12:40,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:12:40,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:40,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:12:40,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:12:40,252 INFO L87 Difference]: Start difference. First operand 477 states and 561 transitions. Second operand 12 states. [2020-10-13 06:12:40,648 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-13 06:12:41,030 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-13 06:12:42,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:42,268 INFO L93 Difference]: Finished difference Result 1040 states and 1272 transitions. [2020-10-13 06:12:42,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:12:42,269 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 183 [2020-10-13 06:12:42,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:42,273 INFO L225 Difference]: With dead ends: 1040 [2020-10-13 06:12:42,273 INFO L226 Difference]: Without dead ends: 569 [2020-10-13 06:12:42,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=128, Invalid=252, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:12:42,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2020-10-13 06:12:42,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 556. [2020-10-13 06:12:42,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-10-13 06:12:42,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 645 transitions. [2020-10-13 06:12:42,302 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 645 transitions. Word has length 183 [2020-10-13 06:12:42,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:42,302 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 645 transitions. [2020-10-13 06:12:42,302 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:12:42,303 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 645 transitions. [2020-10-13 06:12:42,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-13 06:12:42,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:42,307 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:12:42,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:12:42,307 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:42,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:42,308 INFO L82 PathProgramCache]: Analyzing trace with hash -238818558, now seen corresponding path program 1 times [2020-10-13 06:12:42,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:42,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [87044671] [2020-10-13 06:12:42,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:42,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:42,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:42,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:42,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:42,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:44,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:44,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-13 06:12:44,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:12:44,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1942 [2020-10-13 06:12:44,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:44,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:12:44,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-13 06:12:44,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 06:12:44,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:12:44,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:44,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:44,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:44,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:44,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:44,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:12:44,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:44,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:44,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:44,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:44,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:44,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:44,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:44,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:44,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:12:44,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:44,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:12:44,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:44,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:44,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:44,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:44,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:44,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 06:12:44,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:44,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:44,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:44,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 06:12:44,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:44,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 06:12:44,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:44,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:44,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:44,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 06:12:44,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:44,628 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 06:12:44,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [87044671] [2020-10-13 06:12:44,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:44,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:12:44,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841970206] [2020-10-13 06:12:44,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:12:44,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:44,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:12:44,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:12:44,630 INFO L87 Difference]: Start difference. First operand 556 states and 645 transitions. Second operand 5 states. [2020-10-13 06:12:45,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:45,593 INFO L93 Difference]: Finished difference Result 1203 states and 1454 transitions. [2020-10-13 06:12:45,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:12:45,595 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 208 [2020-10-13 06:12:45,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:45,597 INFO L225 Difference]: With dead ends: 1203 [2020-10-13 06:12:45,598 INFO L226 Difference]: Without dead ends: 464 [2020-10-13 06:12:45,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:12:45,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-10-13 06:12:45,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 457. [2020-10-13 06:12:45,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2020-10-13 06:12:45,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 533 transitions. [2020-10-13 06:12:45,616 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 533 transitions. Word has length 208 [2020-10-13 06:12:45,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:45,616 INFO L479 AbstractCegarLoop]: Abstraction has 457 states and 533 transitions. [2020-10-13 06:12:45,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:12:45,616 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 533 transitions. [2020-10-13 06:12:45,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-10-13 06:12:45,619 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:45,620 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:12:45,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:12:45,620 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:45,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:45,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1828147188, now seen corresponding path program 1 times [2020-10-13 06:12:45,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:45,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1199010638] [2020-10-13 06:12:45,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:45,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:45,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:45,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:46,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:46,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:47,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:47,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 231 [2020-10-13 06:12:47,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:12:47,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1993 [2020-10-13 06:12:47,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:47,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:12:47,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-13 06:12:47,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 06:12:47,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:48,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:48,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:48,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:48,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:48,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:48,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:48,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:12:48,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:48,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:48,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:48,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:48,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:48,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:48,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:48,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:48,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:12:48,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:48,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:12:48,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:48,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:48,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:48,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:48,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:48,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 06:12:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:48,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:48,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:48,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:12:48,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:48,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:12:48,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:48,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:48,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:48,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:12:48,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:48,276 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 88 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 06:12:48,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1199010638] [2020-10-13 06:12:48,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:48,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:12:48,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813785948] [2020-10-13 06:12:48,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:12:48,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:48,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:12:48,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:12:48,278 INFO L87 Difference]: Start difference. First operand 457 states and 533 transitions. Second operand 13 states. [2020-10-13 06:12:48,773 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-13 06:12:48,940 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2020-10-13 06:12:49,185 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2020-10-13 06:12:49,400 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-10-13 06:12:49,802 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-13 06:12:49,996 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-13 06:12:51,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:51,388 INFO L93 Difference]: Finished difference Result 1078 states and 1346 transitions. [2020-10-13 06:12:51,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 06:12:51,389 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 219 [2020-10-13 06:12:51,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:51,394 INFO L225 Difference]: With dead ends: 1078 [2020-10-13 06:12:51,394 INFO L226 Difference]: Without dead ends: 627 [2020-10-13 06:12:51,396 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=260, Invalid=610, Unknown=0, NotChecked=0, Total=870 [2020-10-13 06:12:51,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2020-10-13 06:12:51,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 534. [2020-10-13 06:12:51,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2020-10-13 06:12:51,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 612 transitions. [2020-10-13 06:12:51,413 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 612 transitions. Word has length 219 [2020-10-13 06:12:51,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:51,414 INFO L479 AbstractCegarLoop]: Abstraction has 534 states and 612 transitions. [2020-10-13 06:12:51,414 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:12:51,414 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 612 transitions. [2020-10-13 06:12:51,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-10-13 06:12:51,417 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:51,418 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 06:12:51,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:12:51,418 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:51,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:51,419 INFO L82 PathProgramCache]: Analyzing trace with hash 70281574, now seen corresponding path program 1 times [2020-10-13 06:12:51,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:51,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1167142189] [2020-10-13 06:12:51,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:51,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:51,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:51,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:52,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:52,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-13 06:12:52,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:12:52,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 598 [2020-10-13 06:12:52,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:52,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:12:52,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 118 [2020-10-13 06:12:52,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-13 06:12:52,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:52,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:52,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:52,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:52,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:52,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:52,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:52,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:12:52,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:52,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:52,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:52,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:52,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:52,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:52,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:52,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:52,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:12:52,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:52,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:12:52,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:52,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:52,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:52,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:52,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:52,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 06:12:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:52,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:52,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:52,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 06:12:52,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:52,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-13 06:12:52,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:52,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:52,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:52,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 06:12:52,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:52,408 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-13 06:12:52,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1167142189] [2020-10-13 06:12:52,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:52,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:12:52,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000065780] [2020-10-13 06:12:52,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:12:52,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:52,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:12:52,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:12:52,411 INFO L87 Difference]: Start difference. First operand 534 states and 612 transitions. Second operand 5 states. [2020-10-13 06:12:53,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:53,418 INFO L93 Difference]: Finished difference Result 1157 states and 1377 transitions. [2020-10-13 06:12:53,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:12:53,419 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 232 [2020-10-13 06:12:53,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:53,422 INFO L225 Difference]: With dead ends: 1157 [2020-10-13 06:12:53,422 INFO L226 Difference]: Without dead ends: 465 [2020-10-13 06:12:53,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:12:53,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-10-13 06:12:53,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 458. [2020-10-13 06:12:53,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2020-10-13 06:12:53,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 530 transitions. [2020-10-13 06:12:53,441 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 530 transitions. Word has length 232 [2020-10-13 06:12:53,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:53,441 INFO L479 AbstractCegarLoop]: Abstraction has 458 states and 530 transitions. [2020-10-13 06:12:53,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:12:53,441 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 530 transitions. [2020-10-13 06:12:53,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-10-13 06:12:53,444 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:53,444 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:12:53,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:12:53,444 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:53,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:53,445 INFO L82 PathProgramCache]: Analyzing trace with hash 898768697, now seen corresponding path program 1 times [2020-10-13 06:12:53,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:53,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1959146223] [2020-10-13 06:12:53,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:53,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:53,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:53,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:53,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:53,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:54,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:54,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:54,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:54,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:55,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:57,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:57,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-13 06:12:57,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 06:12:57,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3946 [2020-10-13 06:12:57,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:57,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:12:57,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-13 06:12:57,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 06:12:57,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:57,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:57,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:57,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:57,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:57,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:57,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:12:57,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:57,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:57,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:57,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:57,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:57,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:57,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:57,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:57,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:12:57,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:57,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:12:57,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:57,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:57,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:57,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:57,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:57,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 06:12:57,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:57,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:57,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:57,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:12:57,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:57,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:12:57,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:57,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:57,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:57,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:57,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:57,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 06:12:57,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:57,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:57,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:57,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:12:57,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:57,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:12:57,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:57,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 06:12:57,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:57,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 06:12:57,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:57,989 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 105 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-13 06:12:57,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1959146223] [2020-10-13 06:12:57,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:57,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:12:57,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945650743] [2020-10-13 06:12:57,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:12:57,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:57,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:12:57,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:12:57,991 INFO L87 Difference]: Start difference. First operand 458 states and 530 transitions. Second operand 13 states. [2020-10-13 06:13:00,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:13:00,965 INFO L93 Difference]: Finished difference Result 1152 states and 1419 transitions. [2020-10-13 06:13:00,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 06:13:00,966 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 239 [2020-10-13 06:13:00,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:13:00,970 INFO L225 Difference]: With dead ends: 1152 [2020-10-13 06:13:00,970 INFO L226 Difference]: Without dead ends: 464 [2020-10-13 06:13:00,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=303, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:13:00,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-10-13 06:13:00,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 461. [2020-10-13 06:13:00,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-10-13 06:13:00,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 536 transitions. [2020-10-13 06:13:00,990 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 536 transitions. Word has length 239 [2020-10-13 06:13:00,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:13:00,991 INFO L479 AbstractCegarLoop]: Abstraction has 461 states and 536 transitions. [2020-10-13 06:13:00,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:13:00,991 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 536 transitions. [2020-10-13 06:13:00,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-10-13 06:13:00,994 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:13:00,994 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, 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 06:13:00,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:13:00,995 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:13:00,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:13:00,995 INFO L82 PathProgramCache]: Analyzing trace with hash 126120286, now seen corresponding path program 1 times [2020-10-13 06:13:00,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:13:00,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [662868323] [2020-10-13 06:13:00,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:13:01,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:01,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:01,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:01,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:01,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:03,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:03,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-13 06:13:03,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:13:03,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1949 [2020-10-13 06:13:03,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:03,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:13:03,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-13 06:13:03,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 06:13:03,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:03,275 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 38 [2020-10-13 06:13:03,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:13:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:03,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:03,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:03,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:13:03,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:03,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:13:03,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:03,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:03,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:03,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:03,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:03,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:13:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:03,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:03,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:03,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:13:03,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:03,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:13:03,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:03,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:03,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:03,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:03,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:03,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:13:03,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:03,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:03,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:03,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:13:03,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:03,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 06:13:03,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:03,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:13:03,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:03,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:13:03,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:03,877 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-13 06:13:03,878 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [662868323] [2020-10-13 06:13:03,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:13:03,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:13:03,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638969539] [2020-10-13 06:13:03,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:13:03,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:13:03,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:13:03,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:13:03,880 INFO L87 Difference]: Start difference. First operand 461 states and 536 transitions. Second operand 12 states. [2020-10-13 06:13:04,474 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-13 06:13:04,739 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 98 [2020-10-13 06:13:04,970 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 95 [2020-10-13 06:13:05,237 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2020-10-13 06:13:05,466 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 86 [2020-10-13 06:13:05,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:13:05,970 INFO L93 Difference]: Finished difference Result 985 states and 1172 transitions. [2020-10-13 06:13:05,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 06:13:05,978 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 254 [2020-10-13 06:13:05,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:13:05,980 INFO L225 Difference]: With dead ends: 985 [2020-10-13 06:13:05,980 INFO L226 Difference]: Without dead ends: 530 [2020-10-13 06:13:05,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-10-13 06:13:05,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-10-13 06:13:05,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 496. [2020-10-13 06:13:05,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-10-13 06:13:06,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 577 transitions. [2020-10-13 06:13:06,000 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 577 transitions. Word has length 254 [2020-10-13 06:13:06,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:13:06,001 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 577 transitions. [2020-10-13 06:13:06,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:13:06,001 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 577 transitions. [2020-10-13 06:13:06,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-10-13 06:13:06,003 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:13:06,003 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2020-10-13 06:13:06,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:13:06,004 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:13:06,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:13:06,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1092769261, now seen corresponding path program 1 times [2020-10-13 06:13:06,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:13:06,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1010847909] [2020-10-13 06:13:06,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:13:06,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:06,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:06,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:06,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:06,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:06,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:08,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:08,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-10-13 06:13:08,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:13:08,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2445 [2020-10-13 06:13:08,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:08,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:13:08,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 156 [2020-10-13 06:13:08,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 06:13:08,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:08,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:13:08,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:08,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:08,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:08,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:13:08,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:08,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:13:08,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:08,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:08,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:08,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:08,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:08,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:13:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:08,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:08,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:08,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:13:08,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:08,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:13:08,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:08,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:08,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:08,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:08,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:08,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:13:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:08,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:08,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:08,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:13:08,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:08,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:13:08,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:08,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:08,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:08,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:08,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:08,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:13:08,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:08,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:08,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:08,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 06:13:08,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:08,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:13:08,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:08,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:13:08,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:08,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 06:13:08,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:08,782 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 136 proven. 3 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-13 06:13:08,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1010847909] [2020-10-13 06:13:08,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:13:08,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:13:08,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245178726] [2020-10-13 06:13:08,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:13:08,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:13:08,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:13:08,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:13:08,785 INFO L87 Difference]: Start difference. First operand 496 states and 577 transitions. Second operand 5 states. [2020-10-13 06:13:09,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:13:09,668 INFO L93 Difference]: Finished difference Result 1072 states and 1287 transitions. [2020-10-13 06:13:09,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:13:09,669 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 268 [2020-10-13 06:13:09,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:13:09,672 INFO L225 Difference]: With dead ends: 1072 [2020-10-13 06:13:09,672 INFO L226 Difference]: Without dead ends: 499 [2020-10-13 06:13:09,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:13:09,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-10-13 06:13:09,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 496. [2020-10-13 06:13:09,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-10-13 06:13:09,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 572 transitions. [2020-10-13 06:13:09,688 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 572 transitions. Word has length 268 [2020-10-13 06:13:09,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:13:09,689 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 572 transitions. [2020-10-13 06:13:09,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:13:09,689 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 572 transitions. [2020-10-13 06:13:09,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2020-10-13 06:13:09,691 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:13:09,691 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2020-10-13 06:13:09,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:13:09,692 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:13:09,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:13:09,692 INFO L82 PathProgramCache]: Analyzing trace with hash 431358745, now seen corresponding path program 1 times [2020-10-13 06:13:09,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:13:09,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [852426175] [2020-10-13 06:13:09,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:13:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:09,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:09,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:10,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:10,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:10,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:10,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:10,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:12,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:12,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:14,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:14,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 289 [2020-10-13 06:13:14,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 06:13:14,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4555 [2020-10-13 06:13:14,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:14,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:13:14,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-10-13 06:13:14,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:13:14,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:14,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:13:14,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:14,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:14,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:14,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:13:14,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:14,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:13:14,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:14,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:14,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:14,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:14,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:14,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:13:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:14,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:14,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:14,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:13:14,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:14,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:13:14,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:14,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:14,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:14,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:14,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:14,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:13:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:14,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:14,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:14,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:13:14,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:14,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:13:14,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:14,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:14,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:14,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:14,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:14,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:13:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:14,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:14,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:14,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 06:13:14,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:14,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:13:14,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:14,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 06:13:14,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:14,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:13:14,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:14,958 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 141 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 06:13:14,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [852426175] [2020-10-13 06:13:14,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:13:14,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:13:14,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844981823] [2020-10-13 06:13:14,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:13:14,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:13:14,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:13:14,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:13:14,960 INFO L87 Difference]: Start difference. First operand 496 states and 572 transitions. Second operand 13 states. [2020-10-13 06:13:15,944 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2020-10-13 06:13:16,160 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2020-10-13 06:13:16,543 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2020-10-13 06:13:16,946 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2020-10-13 06:13:17,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:13:17,832 INFO L93 Difference]: Finished difference Result 1367 states and 1647 transitions. [2020-10-13 06:13:17,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:13:17,833 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 275 [2020-10-13 06:13:17,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:13:17,839 INFO L225 Difference]: With dead ends: 1367 [2020-10-13 06:13:17,839 INFO L226 Difference]: Without dead ends: 877 [2020-10-13 06:13:17,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:13:17,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2020-10-13 06:13:17,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 869. [2020-10-13 06:13:17,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2020-10-13 06:13:17,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 990 transitions. [2020-10-13 06:13:17,875 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 990 transitions. Word has length 275 [2020-10-13 06:13:17,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:13:17,876 INFO L479 AbstractCegarLoop]: Abstraction has 869 states and 990 transitions. [2020-10-13 06:13:17,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:13:17,876 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 990 transitions. [2020-10-13 06:13:17,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-10-13 06:13:17,879 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:13:17,879 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:13:17,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:13:17,880 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:13:17,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:13:17,880 INFO L82 PathProgramCache]: Analyzing trace with hash 741287662, now seen corresponding path program 1 times [2020-10-13 06:13:17,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:13:17,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [867257770] [2020-10-13 06:13:17,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:13:17,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:17,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:18,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:18,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:18,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 294 [2020-10-13 06:13:18,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:13:18,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 317 [2020-10-13 06:13:18,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:18,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:13:18,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-13 06:13:18,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 06:13:18,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:18,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:13:18,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:18,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:18,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:18,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:13:18,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:18,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:13:18,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:18,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:18,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:18,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:18,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:18,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:13:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:18,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:18,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:18,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:13:18,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:18,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:13:18,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:18,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:18,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:18,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:18,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:18,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:13:18,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:18,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:18,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:18,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:13:18,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:18,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:13:18,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:18,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:18,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:18,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:18,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:18,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:13:18,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:18,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:18,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:18,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 06:13:18,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:18,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:13:18,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:18,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:13:18,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:18,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 06:13:18,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:18,579 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 148 proven. 3 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-10-13 06:13:18,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [867257770] [2020-10-13 06:13:18,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:13:18,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:13:18,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526518214] [2020-10-13 06:13:18,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:13:18,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:13:18,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:13:18,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:13:18,581 INFO L87 Difference]: Start difference. First operand 869 states and 990 transitions. Second operand 5 states. [2020-10-13 06:13:19,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:13:19,460 INFO L93 Difference]: Finished difference Result 1823 states and 2123 transitions. [2020-10-13 06:13:19,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:13:19,461 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 280 [2020-10-13 06:13:19,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:13:19,465 INFO L225 Difference]: With dead ends: 1823 [2020-10-13 06:13:19,466 INFO L226 Difference]: Without dead ends: 874 [2020-10-13 06:13:19,468 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:13:19,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2020-10-13 06:13:19,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 869. [2020-10-13 06:13:19,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2020-10-13 06:13:19,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 975 transitions. [2020-10-13 06:13:19,491 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 975 transitions. Word has length 280 [2020-10-13 06:13:19,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:13:19,491 INFO L479 AbstractCegarLoop]: Abstraction has 869 states and 975 transitions. [2020-10-13 06:13:19,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:13:19,492 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 975 transitions. [2020-10-13 06:13:19,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2020-10-13 06:13:19,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:13:19,495 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:13:19,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:13:19,495 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:13:19,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:13:19,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1764882876, now seen corresponding path program 1 times [2020-10-13 06:13:19,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:13:19,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [637254819] [2020-10-13 06:13:19,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:13:19,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:19,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:19,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:19,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:19,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:19,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:21,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:21,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 299 [2020-10-13 06:13:21,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:13:21,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1846 [2020-10-13 06:13:21,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:21,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:13:21,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-13 06:13:21,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 06:13:21,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:21,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:13:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:21,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:21,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:21,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:13:21,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:21,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:13:21,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:21,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:21,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:21,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:21,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:21,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:13:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:21,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:21,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:21,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:13:21,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:21,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:13:21,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:21,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:21,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:21,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:21,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:21,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:13:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:21,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:21,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:21,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:13:21,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:21,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:13:21,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:21,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:21,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:21,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:21,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:21,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:13:21,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:21,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:21,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:21,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 06:13:21,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:21,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:13:21,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:21,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:13:21,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:21,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 06:13:21,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:21,684 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 153 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2020-10-13 06:13:21,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [637254819] [2020-10-13 06:13:21,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:13:21,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:13:21,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511823902] [2020-10-13 06:13:21,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:13:21,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:13:21,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:13:21,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:13:21,686 INFO L87 Difference]: Start difference. First operand 869 states and 975 transitions. Second operand 5 states. [2020-10-13 06:13:22,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:13:22,642 INFO L93 Difference]: Finished difference Result 1821 states and 2085 transitions. [2020-10-13 06:13:22,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:13:22,643 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 285 [2020-10-13 06:13:22,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:13:22,647 INFO L225 Difference]: With dead ends: 1821 [2020-10-13 06:13:22,647 INFO L226 Difference]: Without dead ends: 874 [2020-10-13 06:13:22,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:13:22,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2020-10-13 06:13:22,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 869. [2020-10-13 06:13:22,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2020-10-13 06:13:22,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 962 transitions. [2020-10-13 06:13:22,671 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 962 transitions. Word has length 285 [2020-10-13 06:13:22,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:13:22,672 INFO L479 AbstractCegarLoop]: Abstraction has 869 states and 962 transitions. [2020-10-13 06:13:22,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:13:22,672 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 962 transitions. [2020-10-13 06:13:22,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2020-10-13 06:13:22,675 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:13:22,676 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:13:22,676 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:13:22,676 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:13:22,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:13:22,677 INFO L82 PathProgramCache]: Analyzing trace with hash -175379085, now seen corresponding path program 1 times [2020-10-13 06:13:22,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:13:22,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1932209313] [2020-10-13 06:13:22,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:13:22,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:22,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:22,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:23,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:23,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:23,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:23,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:23,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:24,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:24,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:24,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:24,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:25,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:25,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:25,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 356 [2020-10-13 06:13:25,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-13 06:13:25,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3166 [2020-10-13 06:13:25,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:25,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:13:25,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-10-13 06:13:25,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:13:25,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:25,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:13:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:25,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:25,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:25,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:13:25,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:25,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:13:25,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:25,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:25,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:25,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:25,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:26,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:13:26,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:26,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:26,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:26,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:13:26,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:26,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:13:26,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:26,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:26,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:26,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:26,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:26,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:13:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:26,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:26,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:26,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:13:26,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:26,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:13:26,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:26,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:26,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:26,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:26,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:26,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:13:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:26,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:26,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:26,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 06:13:26,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:26,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:13:26,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:26,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:13:26,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:26,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 06:13:26,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:26,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-13 06:13:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:26,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:26,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:26,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 06:13:26,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:26,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 06:13:26,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:26,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:13:26,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:13:26,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:13:26,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:26,259 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 336 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-13 06:13:26,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1932209313] [2020-10-13 06:13:26,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:13:26,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 06:13:26,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766263223] [2020-10-13 06:13:26,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 06:13:26,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:13:26,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 06:13:26,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:13:26,261 INFO L87 Difference]: Start difference. First operand 869 states and 962 transitions. Second operand 8 states. [2020-10-13 06:13:27,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:13:27,106 INFO L93 Difference]: Finished difference Result 1261 states and 1376 transitions. [2020-10-13 06:13:27,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 06:13:27,107 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 340 [2020-10-13 06:13:27,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:13:27,108 INFO L225 Difference]: With dead ends: 1261 [2020-10-13 06:13:27,108 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:13:27,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:13:27,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:13:27,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:13:27,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:13:27,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:13:27,112 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 340 [2020-10-13 06:13:27,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:13:27,112 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:13:27,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 06:13:27,112 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:13:27,113 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:13:27,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:13:27,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:13:28,027 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 152 [2020-10-13 06:13:28,672 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 174 [2020-10-13 06:13:31,953 WARN L193 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 228 DAG size of output: 166 [2020-10-13 06:13:32,548 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 84 [2020-10-13 06:13:33,974 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 177 DAG size of output: 113 [2020-10-13 06:13:33,979 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:13:33,979 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-10-13 06:13:33,979 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:13:33,979 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,979 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,980 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,980 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,980 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,980 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-10-13 06:13:33,980 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-10-13 06:13:33,981 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-13 06:13:33,981 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-13 06:13:33,981 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-13 06:13:33,981 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-13 06:13:33,981 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-13 06:13:33,981 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-10-13 06:13:33,981 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-10-13 06:13:33,981 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-10-13 06:13:33,982 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-10-13 06:13:33,982 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-10-13 06:13:33,982 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-10-13 06:13:33,982 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,982 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,982 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,982 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,982 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-10-13 06:13:33,982 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,982 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-10-13 06:13:33,982 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-13 06:13:33,982 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-13 06:13:33,982 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-13 06:13:33,982 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-13 06:13:33,982 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-13 06:13:33,983 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-10-13 06:13:33,983 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-10-13 06:13:33,983 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-10-13 06:13:33,983 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-10-13 06:13:33,983 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-10-13 06:13:33,983 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-10-13 06:13:33,983 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-10-13 06:13:33,983 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-10-13 06:13:33,983 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-10-13 06:13:33,983 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,983 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,984 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,984 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,984 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,984 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 532) no Hoare annotation was computed. [2020-10-13 06:13:33,984 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-10-13 06:13:33,984 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-10-13 06:13:33,984 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-10-13 06:13:33,984 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-13 06:13:33,985 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-13 06:13:33,985 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-13 06:13:33,985 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-13 06:13:33,985 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-13 06:13:33,985 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-10-13 06:13:33,985 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-10-13 06:13:33,985 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-10-13 06:13:33,985 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,985 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,985 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,986 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,986 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,986 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-10-13 06:13:33,986 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-10-13 06:13:33,986 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-10-13 06:13:33,986 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-13 06:13:33,986 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-13 06:13:33,986 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-13 06:13:33,986 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-13 06:13:33,986 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-13 06:13:33,986 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-10-13 06:13:33,986 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-10-13 06:13:33,986 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-10-13 06:13:33,986 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-10-13 06:13:33,987 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-10-13 06:13:33,987 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,987 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,987 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,987 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,987 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,987 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-10-13 06:13:33,987 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-10-13 06:13:33,987 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-13 06:13:33,988 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-13 06:13:33,988 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-13 06:13:33,988 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-13 06:13:33,988 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-10-13 06:13:33,988 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-10-13 06:13:33,988 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-10-13 06:13:33,988 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-10-13 06:13:33,988 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-10-13 06:13:33,988 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-10-13 06:13:33,988 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-10-13 06:13:33,988 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-10-13 06:13:33,988 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-10-13 06:13:33,988 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-10-13 06:13:33,988 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,988 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,988 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,989 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,989 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-10-13 06:13:33,989 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,989 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-10-13 06:13:33,989 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,989 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-10-13 06:13:33,989 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-10-13 06:13:33,989 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-10-13 06:13:33,989 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,989 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,989 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-10-13 06:13:33,989 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-13 06:13:33,990 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-13 06:13:33,990 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-13 06:13:33,990 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-13 06:13:33,990 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-13 06:13:33,990 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-10-13 06:13:33,990 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-10-13 06:13:33,990 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-10-13 06:13:33,990 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-10-13 06:13:33,990 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-10-13 06:13:33,990 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,991 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,991 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,991 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,991 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,991 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,991 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-10-13 06:13:33,991 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-10-13 06:13:33,991 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-13 06:13:33,991 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-13 06:13:33,991 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-13 06:13:33,992 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-13 06:13:33,992 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-13 06:13:33,992 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-10-13 06:13:33,992 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-10-13 06:13:33,992 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-10-13 06:13:33,992 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-10-13 06:13:33,992 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,992 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,992 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,992 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,992 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,993 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,993 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-10-13 06:13:33,993 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-10-13 06:13:33,993 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-10-13 06:13:33,993 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-10-13 06:13:33,993 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-13 06:13:33,993 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-13 06:13:33,993 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-13 06:13:33,993 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-13 06:13:33,993 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-13 06:13:33,994 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-10-13 06:13:33,994 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-10-13 06:13:33,994 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-10-13 06:13:33,994 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-10-13 06:13:33,994 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-10-13 06:13:33,994 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,994 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,994 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,995 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse27 (= |old(~a19~0)| 1)) (.cse20 (not (= |calculate_output_#in~input| 3))) (.cse21 (not (= |calculate_output_#in~input| 4))) (.cse22 (not (= |calculate_output_#in~input| 5))) (.cse24 (not (= |calculate_output_#in~input| 6))) (.cse6 (= |old(~a11~0)| 1)) (.cse23 (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1)))) (.cse1 (= ~a11~0 |old(~a11~0)|)) (.cse2 (= ~a17~0 8)) (.cse3 (= ~a25~0 1)) (.cse4 (= ~a19~0 |old(~a19~0)|)) (.cse33 (= ~a28~0 10))) (let ((.cse19 (and .cse1 .cse2 .cse3 .cse4 .cse33)) (.cse18 (not (= 10 |old(~a28~0)|))) (.cse12 (not (= 0 |old(~a25~0)|))) (.cse29 (= ~a19~0 1)) (.cse13 (= ~a25~0 |old(~a25~0)|)) (.cse16 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) .cse23)) (.cse30 (not (<= |old(~a11~0)| 0))) (.cse15 (= 7 ~a28~0)) (.cse17 (not (= 7 |old(~a28~0)|))) (.cse31 (not (= 7 |old(~a17~0)|))) (.cse32 (= 7 ~a17~0)) (.cse10 (= ~a28~0 9)) (.cse14 (not (= 0 |old(~a19~0)|))) (.cse9 (not (= 9 |old(~a28~0)|))) (.cse11 (not .cse6)) (.cse25 (and .cse20 .cse21 (not (= |calculate_output_#in~input| 1)) .cse22 .cse24)) (.cse0 (not (= |old(~a25~0)| 1))) (.cse26 (= ~a28~0 8)) (.cse8 (not .cse27)) (.cse5 (not (= 8 |old(~a17~0)|))) (.cse7 (not (= ~a21~0 1))) (.cse28 (not (= 8 |old(~a28~0)|)))) (and (or (not (<= |old(~a28~0)| 7)) .cse0 (and (= ~a28~0 |old(~a28~0)|) .cse1 .cse2 .cse3 .cse4) .cse5 .cse6 .cse7) (or .cse0 .cse8 .cse5 .cse9 .cse7 (and .cse1 .cse2 .cse3 .cse10 .cse4) .cse11) (or .cse8 .cse5 .cse12 .cse9 .cse7 (and .cse1 .cse13 .cse2 .cse10 .cse4) .cse11) (or .cse14 .cse5 .cse6 (and (= ~a19~0 0) .cse1 .cse13 .cse2 .cse15) .cse7 .cse16 .cse17) (or .cse0 .cse18 .cse8 .cse5 .cse19 .cse7 .cse11) (or .cse0 .cse8 (and .cse20 .cse21 .cse22 .cse23 .cse24) (not (= 11 |old(~a28~0)|)) .cse5 .cse6 .cse7 (and .cse1 .cse2 .cse3 .cse4 (= ~a28~0 11))) (or .cse25 (and .cse1 .cse13 .cse2 .cse26 .cse4) .cse27 .cse5 .cse12 .cse6 .cse7 .cse28) (or .cse25 .cse0 .cse18 .cse5 .cse6 .cse19 .cse7) (or .cse25 .cse8 .cse5 .cse6 .cse9 .cse7 (and .cse1 .cse29 .cse13 .cse2 .cse10)) (or .cse27 (and .cse1 .cse13 .cse2 .cse15 .cse4) .cse5 .cse12 .cse7 .cse17 .cse11) (or (not (<= |old(~a19~0)| 1)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a28~0)| 10)) (not (<= 1 |old(~a19~0)|)) .cse7 .cse16 (and .cse1 (< 9 ~a28~0) .cse13 (<= ~a17~0 8) (< 7 ~a17~0) (<= ~a28~0 10) .cse4) (and (not (<= 2 |old(~a11~0)|)) .cse30) (not (< 7 |old(~a17~0)|)) (not (< 9 |old(~a28~0)|))) (or .cse18 .cse31 (not (= |old(~a19~0)| |old(~a25~0)|)) .cse12 .cse7 (and .cse32 .cse1 (= ~a25~0 ~a19~0) .cse4 .cse33) .cse11) (or .cse8 .cse5 (not (<= |old(~a25~0)| 0)) .cse7 (and .cse1 .cse29 .cse13 .cse2 .cse15) .cse16 .cse17 .cse30) (or (and .cse32 .cse1 .cse15 .cse3 .cse4) .cse0 .cse31 .cse8 .cse7 .cse17 .cse11) (or .cse0 .cse31 (and .cse32 .cse1 .cse3 .cse10 .cse4) .cse14 .cse9 .cse7 .cse11) (or .cse25 .cse0 (and .cse1 .cse2 .cse3 .cse26 .cse4) .cse8 .cse5 .cse6 .cse7 .cse28)))) [2020-10-13 06:13:33,995 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,995 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,995 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,995 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-10-13 06:13:33,995 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-10-13 06:13:33,996 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-10-13 06:13:33,996 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-13 06:13:33,996 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-13 06:13:33,996 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-13 06:13:33,996 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-13 06:13:33,996 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-13 06:13:33,996 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-13 06:13:33,996 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-10-13 06:13:33,996 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-10-13 06:13:33,996 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-10-13 06:13:33,996 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-10-13 06:13:33,997 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,997 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,997 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,997 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,997 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,997 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,997 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-10-13 06:13:33,997 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-10-13 06:13:33,997 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-10-13 06:13:33,998 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-13 06:13:33,998 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-13 06:13:33,998 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-13 06:13:33,998 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-13 06:13:33,998 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-13 06:13:33,998 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-10-13 06:13:33,998 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-10-13 06:13:33,998 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-10-13 06:13:33,998 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-10-13 06:13:33,998 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-10-13 06:13:33,999 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-10-13 06:13:33,999 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-10-13 06:13:33,999 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-10-13 06:13:33,999 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,999 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,999 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,999 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,999 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:13:33,999 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-10-13 06:13:33,999 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-10-13 06:13:33,999 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-10-13 06:13:33,999 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-10-13 06:13:33,999 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-10-13 06:13:33,999 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-13 06:13:33,999 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-13 06:13:33,999 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-13 06:13:34,000 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-13 06:13:34,000 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-13 06:13:34,000 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-10-13 06:13:34,000 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-10-13 06:13:34,000 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-10-13 06:13:34,000 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-10-13 06:13:34,000 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-10-13 06:13:34,000 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-10-13 06:13:34,000 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-10-13 06:13:34,000 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-10-13 06:13:34,000 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-10-13 06:13:34,000 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:13:34,000 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a11~0 0) (= ~a21~0 1) (<= 7 ~a28~0) (<= 8 ~a17~0) (<= ~a19~0 1) (<= ~a28~0 7) (<= ~a17~0 8) (<= ~a25~0 0) (<= 1 ~a19~0)) [2020-10-13 06:13:34,000 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:13:34,001 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:13:34,001 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a19~0)| 1)) (not (<= |old(~a17~0)| 8)) (and (= ~a17~0 |old(~a17~0)|) (= ~a11~0 |old(~a11~0)|) (<= 7 ~a28~0) (= ~a25~0 |old(~a25~0)|) (<= ~a28~0 7) (= ~a19~0 |old(~a19~0)|)) (not (<= 8 |old(~a17~0)|)) (not (<= 1 |old(~a19~0)|)) (not (<= 7 |old(~a28~0)|)) (not (<= |old(~a25~0)| 0)) (not (= ~a21~0 1)) (not (<= |old(~a11~0)| 0))) [2020-10-13 06:13:34,001 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse5 (= ~a19~0 1)) (.cse4 (= ~a11~0 1))) (let ((.cse0 (= ~a19~0 0)) (.cse1 (= 7 ~a17~0)) (.cse12 (<= ~a19~0 1)) (.cse13 (<= 1 ~a19~0)) (.cse11 (= ~a28~0 10)) (.cse2 (= ~a25~0 1)) (.cse14 (<= ~a28~0 7)) (.cse3 (= ~a28~0 9)) (.cse7 (not .cse4)) (.cse9 (= ~a28~0 8)) (.cse10 (= ~a25~0 0)) (.cse6 (= ~a17~0 8)) (.cse15 (not .cse5)) (.cse8 (= 7 ~a28~0))) (or (not (<= |old(~a19~0)| 1)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (<= 8 |old(~a17~0)|)) (and .cse5 .cse6 .cse3 .cse7) (and .cse0 .cse6 .cse8 .cse7) (not (<= |old(~a25~0)| 0)) (and .cse5 .cse6 .cse2 .cse7 .cse9) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse10 .cse4 (= ~a25~0 ~a19~0) .cse11) (and .cse6 .cse2 .cse12 .cse7 .cse13 (= ~a28~0 11)) (and .cse5 .cse6 .cse2 .cse3) (and .cse5 .cse6 .cse2 .cse11) (not (<= |old(~a11~0)| 0)) (and .cse1 .cse5 .cse8 .cse2 .cse4) (and (= ~a17~0 |old(~a17~0)|) (= ~a11~0 |old(~a11~0)|) (<= 7 ~a28~0) (= ~a25~0 |old(~a25~0)|) .cse14 (= ~a19~0 |old(~a19~0)|)) (not (<= 1 |old(~a19~0)|)) (and (or (<= ~a11~0 0) (< 1 ~a11~0)) (<= 10 ~a28~0) (<= 8 ~a17~0) .cse12 (<= ~a17~0 8) .cse13 (<= ~a28~0 10)) (and .cse6 .cse2 .cse7 .cse11) (and .cse6 .cse2 .cse7 .cse14) (not (<= 7 |old(~a28~0)|)) (and .cse5 .cse10 .cse6 .cse3) (and .cse10 .cse6 .cse15 .cse7 .cse9) (and .cse10 .cse6 .cse15 .cse8 .cse4) (not (<= |old(~a17~0)| 8)) (not (= ~a21~0 1))))) [2020-10-13 06:13:34,001 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-10-13 06:13:34,001 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-10-13 06:13:34,001 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse4 (= ~a11~0 1)) (.cse17 (= 5 main_~input~0)) (.cse18 (= 6 main_~input~0)) (.cse19 (= main_~input~0 4)) (.cse20 (= 3 main_~input~0)) (.cse15 (= ~a19~0 1))) (let ((.cse0 (= ~a19~0 0)) (.cse11 (= ~a28~0 8)) (.cse1 (= 7 ~a17~0)) (.cse12 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 6 main_~input~0) (<= main_~input~0 6)) (and (<= main_~input~0 3) (<= 3 main_~input~0)) (and (<= main_~input~0 1) (<= 1 main_~input~0)) (and (<= main_~input~0 5) (<= 5 main_~input~0)))) (.cse13 (<= ~a19~0 1)) (.cse14 (<= 1 ~a19~0)) (.cse9 (= ~a25~0 0)) (.cse10 (not .cse15)) (.cse16 (= 7 ~a28~0)) (.cse8 (= ~a28~0 10)) (.cse2 (= ~a25~0 1)) (.cse5 (or .cse17 .cse18 .cse19 .cse20 (= main_~input~0 1))) (.cse6 (= ~a17~0 8)) (.cse3 (= ~a28~0 9)) (.cse7 (not .cse4))) (or (not (<= |old(~a19~0)| 1)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (<= 8 |old(~a17~0)|)) (and .cse5 .cse6 .cse2 .cse7 .cse8) (and .cse5 .cse9 .cse6 .cse10 .cse7 .cse11) (not (<= |old(~a25~0)| 0)) (and (= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) .cse6 .cse12 .cse13 .cse14) (and .cse15 .cse9 .cse6 .cse3 .cse4) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse9 .cse4 (= ~a25~0 ~a19~0) .cse8) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse6 .cse12 .cse16 .cse7) (and .cse5 .cse15 .cse6 .cse2 .cse7 .cse11) (and .cse1 .cse15 .cse16 .cse2 .cse4) (not (<= 1 |old(~a19~0)|)) (and .cse6 .cse2 .cse7 (<= ~a28~0 7)) (not (<= 7 |old(~a28~0)|)) (and (or (<= ~a11~0 0) (< 1 ~a11~0)) (<= 10 ~a28~0) (<= 8 ~a17~0) .cse12 .cse13 (<= ~a17~0 8) .cse14 (<= ~a28~0 10)) (and .cse9 .cse6 .cse10 .cse16 .cse4) (not (<= |old(~a17~0)| 8)) (and .cse15 .cse6 (or (= ~a19~0 main_~input~0) .cse17 .cse18 .cse19 .cse20) .cse2 .cse7 (= ~a28~0 11)) (not (= ~a21~0 1)) (and .cse15 .cse6 .cse2 .cse4 .cse8) (and .cse15 .cse6 .cse2 .cse3 .cse4) (and .cse5 .cse15 .cse6 .cse3 .cse7)))) [2020-10-13 06:13:34,001 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-10-13 06:13:34,002 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-10-13 06:13:34,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:13:34 BoogieIcfgContainer [2020-10-13 06:13:34,028 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:13:34,030 INFO L168 Benchmark]: Toolchain (without parser) took 89149.87 ms. Allocated memory was 140.5 MB in the beginning and 1.1 GB in the end (delta: 948.4 MB). Free memory was 102.2 MB in the beginning and 212.2 MB in the end (delta: -110.1 MB). Peak memory consumption was 929.7 MB. Max. memory is 7.1 GB. [2020-10-13 06:13:34,030 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-10-13 06:13:34,031 INFO L168 Benchmark]: CACSL2BoogieTranslator took 700.75 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 101.9 MB in the beginning and 171.5 MB in the end (delta: -69.6 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. [2020-10-13 06:13:34,031 INFO L168 Benchmark]: Boogie Preprocessor took 99.58 ms. Allocated memory is still 205.5 MB. Free memory was 171.5 MB in the beginning and 166.6 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-10-13 06:13:34,032 INFO L168 Benchmark]: RCFGBuilder took 1225.44 ms. Allocated memory was 205.5 MB in the beginning and 238.6 MB in the end (delta: 33.0 MB). Free memory was 166.6 MB in the beginning and 178.9 MB in the end (delta: -12.4 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. [2020-10-13 06:13:34,034 INFO L168 Benchmark]: TraceAbstraction took 87118.84 ms. Allocated memory was 238.6 MB in the beginning and 1.1 GB in the end (delta: 850.4 MB). Free memory was 178.9 MB in the beginning and 212.2 MB in the end (delta: -33.3 MB). Peak memory consumption was 908.4 MB. Max. memory is 7.1 GB. [2020-10-13 06:13:34,039 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 700.75 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 101.9 MB in the beginning and 171.5 MB in the end (delta: -69.6 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.58 ms. Allocated memory is still 205.5 MB. Free memory was 171.5 MB in the beginning and 166.6 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1225.44 ms. Allocated memory was 205.5 MB in the beginning and 238.6 MB in the end (delta: 33.0 MB). Free memory was 166.6 MB in the beginning and 178.9 MB in the end (delta: -12.4 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 87118.84 ms. Allocated memory was 238.6 MB in the beginning and 1.1 GB in the end (delta: 850.4 MB). Free memory was 178.9 MB in the beginning and 212.2 MB in the end (delta: -33.3 MB). Peak memory consumption was 908.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 532]: 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: 606]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((!(\old(a19) <= 1) || ((((a19 == 0 && 7 == a17) && a25 == 1) && a28 == 9) && a11 == 1)) || !(8 <= \old(a17))) || (((a19 == 1 && a17 == 8) && a28 == 9) && !(a11 == 1))) || (((a19 == 0 && a17 == 8) && 7 == a28) && !(a11 == 1))) || !(\old(a25) <= 0)) || ((((a19 == 1 && a17 == 8) && a25 == 1) && !(a11 == 1)) && a28 == 8)) || !(\old(a28) <= 7)) || ((((7 == a17 && a25 == 0) && a11 == 1) && a25 == a19) && a28 == 10)) || (((((a17 == 8 && a25 == 1) && a19 <= 1) && !(a11 == 1)) && 1 <= a19) && a28 == 11)) || (((a19 == 1 && a17 == 8) && a25 == 1) && a28 == 9)) || (((a19 == 1 && a17 == 8) && a25 == 1) && a28 == 10)) || !(\old(a11) <= 0)) || ((((7 == a17 && a19 == 1) && 7 == a28) && a25 == 1) && a11 == 1)) || (((((a17 == \old(a17) && a11 == \old(a11)) && 7 <= a28) && a25 == \old(a25)) && a28 <= 7) && a19 == \old(a19))) || !(1 <= \old(a19))) || (((((((a11 <= 0 || 1 < a11) && 10 <= a28) && 8 <= a17) && a19 <= 1) && a17 <= 8) && 1 <= a19) && a28 <= 10)) || (((a17 == 8 && a25 == 1) && !(a11 == 1)) && a28 == 10)) || (((a17 == 8 && a25 == 1) && !(a11 == 1)) && a28 <= 7)) || !(7 <= \old(a28))) || (((a19 == 1 && a25 == 0) && a17 == 8) && a28 == 9)) || ((((a25 == 0 && a17 == 8) && !(a19 == 1)) && !(a11 == 1)) && a28 == 8)) || ((((a25 == 0 && a17 == 8) && !(a19 == 1)) && 7 == a28) && a11 == 1)) || !(\old(a17) <= 8)) || !(a21 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 80.1s, OverallIterations: 18, TraceHistogramMax: 5, AutomataDifference: 33.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 672 SDtfs, 6807 SDslu, 988 SDs, 0 SdLazy, 15511 SolverSat, 1256 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 400 GetRequests, 161 SyntacticMatches, 6 SemanticMatches, 233 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 16.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=869occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 18 MinimizatonAttempts, 231 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 108 PreInvPairs, 146 NumberOfFragments, 1824 HoareAnnotationTreeSize, 108 FomulaSimplifications, 19759905 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 5146674 FormulaSimplificationTreeSizeReductionInter, 5.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 42.6s InterpolantComputationTime, 3849 NumberOfCodeBlocks, 3849 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3831 ConstructedInterpolants, 0 QuantifiedInterpolants, 8106896 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 1 PerfectInterpolantSequences, 2294/2328 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...