/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label10.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 11:03:16,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 11:03:16,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 11:03:16,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 11:03:16,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 11:03:16,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 11:03:16,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 11:03:16,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 11:03:16,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 11:03:16,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 11:03:16,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 11:03:16,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 11:03:16,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 11:03:16,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 11:03:16,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 11:03:16,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 11:03:16,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 11:03:16,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 11:03:16,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 11:03:16,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 11:03:16,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 11:03:16,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 11:03:16,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 11:03:16,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 11:03:16,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 11:03:16,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 11:03:16,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 11:03:16,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 11:03:16,696 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 11:03:16,697 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 11:03:16,697 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 11:03:16,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 11:03:16,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 11:03:16,699 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 11:03:16,700 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 11:03:16,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 11:03:16,701 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 11:03:16,701 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 11:03:16,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 11:03:16,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 11:03:16,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 11:03:16,704 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 11:03:16,726 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 11:03:16,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 11:03:16,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 11:03:16,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 11:03:16,728 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 11:03:16,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 11:03:16,729 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 11:03:16,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 11:03:16,729 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 11:03:16,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 11:03:16,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 11:03:16,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 11:03:16,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 11:03:16,730 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 11:03:16,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 11:03:16,730 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 11:03:16,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 11:03:16,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 11:03:16,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 11:03:16,731 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 11:03:16,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 11:03:16,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 11:03:16,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 11:03:16,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 11:03:16,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 11:03:16,732 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 11:03:16,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 11:03:16,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 11:03:16,733 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 11:03:16,733 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 11:03:17,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 11:03:17,084 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 11:03:17,087 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 11:03:17,089 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 11:03:17,089 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 11:03:17,090 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label10.c [2020-10-12 11:03:17,156 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d19157c90/8652c891bacb433bb647a2c96c0485c2/FLAGfb2c44d2e [2020-10-12 11:03:17,701 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 11:03:17,704 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label10.c [2020-10-12 11:03:17,722 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d19157c90/8652c891bacb433bb647a2c96c0485c2/FLAGfb2c44d2e [2020-10-12 11:03:18,000 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d19157c90/8652c891bacb433bb647a2c96c0485c2 [2020-10-12 11:03:18,009 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 11:03:18,011 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 11:03:18,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 11:03:18,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 11:03:18,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 11:03:18,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:03:18" (1/1) ... [2020-10-12 11:03:18,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bd36ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:03:18, skipping insertion in model container [2020-10-12 11:03:18,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:03:18" (1/1) ... [2020-10-12 11:03:18,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 11:03:18,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 11:03:18,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:03:18,672 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 11:03:18,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:03:18,802 INFO L208 MainTranslator]: Completed translation [2020-10-12 11:03:18,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:03:18 WrapperNode [2020-10-12 11:03:18,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 11:03:18,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 11:03:18,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 11:03:18,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 11:03:18,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:03:18" (1/1) ... [2020-10-12 11:03:18,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:03:18" (1/1) ... [2020-10-12 11:03:18,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:03:18" (1/1) ... [2020-10-12 11:03:18,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:03:18" (1/1) ... [2020-10-12 11:03:18,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:03:18" (1/1) ... [2020-10-12 11:03:18,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:03:18" (1/1) ... [2020-10-12 11:03:18,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:03:18" (1/1) ... [2020-10-12 11:03:18,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 11:03:18,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 11:03:18,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 11:03:18,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 11:03:18,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:03:18" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 11:03:18,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 11:03:18,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 11:03:18,978 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 11:03:18,978 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 11:03:18,978 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 11:03:18,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 11:03:18,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 11:03:18,979 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 11:03:18,979 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 11:03:18,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 11:03:18,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 11:03:20,161 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 11:03:20,162 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 11:03:20,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:03:20 BoogieIcfgContainer [2020-10-12 11:03:20,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 11:03:20,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 11:03:20,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 11:03:20,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 11:03:20,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:03:18" (1/3) ... [2020-10-12 11:03:20,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bc85889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:03:20, skipping insertion in model container [2020-10-12 11:03:20,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:03:18" (2/3) ... [2020-10-12 11:03:20,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bc85889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:03:20, skipping insertion in model container [2020-10-12 11:03:20,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:03:20" (3/3) ... [2020-10-12 11:03:20,182 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label10.c [2020-10-12 11:03:20,192 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 11:03:20,204 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 11:03:20,218 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 11:03:20,246 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 11:03:20,246 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 11:03:20,246 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 11:03:20,247 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 11:03:20,247 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 11:03:20,247 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 11:03:20,247 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 11:03:20,248 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 11:03:20,270 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-12 11:03:20,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-12 11:03:20,284 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:03:20,285 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] [2020-10-12 11:03:20,286 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:03:20,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:03:20,291 INFO L82 PathProgramCache]: Analyzing trace with hash 262180542, now seen corresponding path program 1 times [2020-10-12 11:03:20,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:03:20,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2147449393] [2020-10-12 11:03:20,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:03:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:20,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:20,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:22,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:22,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-12 11:03:22,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:03:22,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1650 [2020-10-12 11:03:22,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:22,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 11:03:22,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:03:22,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-12 11:03:22,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 11:03:22,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:03:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:23,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:23,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:23,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:03:23,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:23,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:03:23,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:23,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:03:23,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:03:23,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:03:23,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:23,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:03:23,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2147449393] [2020-10-12 11:03:23,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 11:03:23,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 11:03:23,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756562388] [2020-10-12 11:03:23,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:03:23,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:03:23,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:03:23,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:03:23,191 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 13 states. [2020-10-12 11:03:23,535 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-10-12 11:03:23,730 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-10-12 11:03:24,022 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-12 11:03:24,239 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-12 11:03:24,462 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-10-12 11:03:24,851 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2020-10-12 11:03:25,266 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-10-12 11:03:25,566 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 84 [2020-10-12 11:03:26,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:03:26,569 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-12 11:03:26,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:03:26,571 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 116 [2020-10-12 11:03:26,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:03:26,584 INFO L225 Difference]: With dead ends: 474 [2020-10-12 11:03:26,584 INFO L226 Difference]: Without dead ends: 205 [2020-10-12 11:03:26,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=140, Invalid=322, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:03:26,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-12 11:03:26,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-12 11:03:26,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-12 11:03:26,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-12 11:03:26,662 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 116 [2020-10-12 11:03:26,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:03:26,662 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-12 11:03:26,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:03:26,663 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-12 11:03:26,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-12 11:03:26,667 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:03:26,667 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:03:26,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 11:03:26,668 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:03:26,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:03:26,668 INFO L82 PathProgramCache]: Analyzing trace with hash -193007079, now seen corresponding path program 1 times [2020-10-12 11:03:26,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:03:26,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786057361] [2020-10-12 11:03:26,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:03:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:26,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:26,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:26,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:28,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:28,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-12 11:03:28,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:03:28,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1972 [2020-10-12 11:03:28,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:28,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:03:28,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:03:28,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 11:03:28,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:03:29,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:03:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:29,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:29,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:29,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:03:29,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:29,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:03:29,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:29,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:03:29,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:03:29,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:03:29,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:03:29,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:03:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:29,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:29,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:29,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:03:29,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:29,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:03:29,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:29,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:03:29,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:03:29,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 11:03:29,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:03:29,366 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:03:29,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786057361] [2020-10-12 11:03:29,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:03:29,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:03:29,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743695320] [2020-10-12 11:03:29,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:03:29,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:03:29,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:03:29,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:03:29,371 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-12 11:03:30,094 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-12 11:03:30,761 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-12 11:03:31,082 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-12 11:03:31,484 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-12 11:03:31,702 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-12 11:03:32,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:03:32,320 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-12 11:03:32,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 11:03:32,322 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 124 [2020-10-12 11:03:32,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:03:32,329 INFO L225 Difference]: With dead ends: 433 [2020-10-12 11:03:32,329 INFO L226 Difference]: Without dead ends: 294 [2020-10-12 11:03:32,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-12 11:03:32,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-12 11:03:32,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-12 11:03:32,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-12 11:03:32,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-12 11:03:32,361 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 124 [2020-10-12 11:03:32,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:03:32,362 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-12 11:03:32,362 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:03:32,362 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-12 11:03:32,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-12 11:03:32,365 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:03:32,366 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:03:32,366 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 11:03:32,366 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:03:32,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:03:32,367 INFO L82 PathProgramCache]: Analyzing trace with hash 911823639, now seen corresponding path program 1 times [2020-10-12 11:03:32,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:03:32,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1091160167] [2020-10-12 11:03:32,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:03:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:32,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:32,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:32,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:32,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:32,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-12 11:03:32,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:03:32,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 565 [2020-10-12 11:03:32,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:32,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:03:32,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:03:32,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-12 11:03:32,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:03:33,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:03:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:33,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:33,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:33,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:03:33,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:33,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:03:33,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:33,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:03:33,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:03:33,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:03:33,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:03:33,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:03:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:33,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:33,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:33,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:33,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:03:33,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:03:33,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 11:03:33,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:33,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:03:33,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:03:33,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:03:33,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:03:33,217 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 11:03:33,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1091160167] [2020-10-12 11:03:33,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:03:33,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:03:33,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517166354] [2020-10-12 11:03:33,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 11:03:33,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:03:33,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 11:03:33,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:03:33,222 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 6 states. [2020-10-12 11:03:34,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:03:34,235 INFO L93 Difference]: Finished difference Result 627 states and 853 transitions. [2020-10-12 11:03:34,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 11:03:34,235 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 127 [2020-10-12 11:03:34,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:03:34,244 INFO L225 Difference]: With dead ends: 627 [2020-10-12 11:03:34,244 INFO L226 Difference]: Without dead ends: 417 [2020-10-12 11:03:34,246 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:03:34,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2020-10-12 11:03:34,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 415. [2020-10-12 11:03:34,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-10-12 11:03:34,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 548 transitions. [2020-10-12 11:03:34,293 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 548 transitions. Word has length 127 [2020-10-12 11:03:34,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:03:34,294 INFO L479 AbstractCegarLoop]: Abstraction has 415 states and 548 transitions. [2020-10-12 11:03:34,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 11:03:34,294 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 548 transitions. [2020-10-12 11:03:34,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-12 11:03:34,303 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:03:34,303 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:03:34,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 11:03:34,303 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:03:34,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:03:34,304 INFO L82 PathProgramCache]: Analyzing trace with hash -88360158, now seen corresponding path program 1 times [2020-10-12 11:03:34,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:03:34,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [541335130] [2020-10-12 11:03:34,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:03:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:34,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:34,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:34,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:36,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:38,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:38,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-12 11:03:38,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:03:38,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4383 [2020-10-12 11:03:38,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:38,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:03:38,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-12 11:03:38,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 11:03:38,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:39,234 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 39 [2020-10-12 11:03:39,365 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 38 [2020-10-12 11:03:39,502 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 36 [2020-10-12 11:03:39,651 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 34 [2020-10-12 11:03:39,780 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 32 [2020-10-12 11:03:39,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:03:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:39,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:39,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:39,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:03:39,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:39,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:03:39,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:39,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:03:39,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:03:39,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:03:39,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:39,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:03:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:39,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:39,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:39,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:03:39,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:39,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:03:39,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:39,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:03:39,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:03:39,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:03:39,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:39,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:03:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:39,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:39,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:39,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 11:03:39,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:39,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 11:03:39,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:39,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:03:39,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:03:39,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 11:03:39,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:40,026 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-12 11:03:40,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [541335130] [2020-10-12 11:03:40,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:03:40,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:03:40,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110692975] [2020-10-12 11:03:40,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:03:40,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:03:40,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:03:40,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:03:40,031 INFO L87 Difference]: Start difference. First operand 415 states and 548 transitions. Second operand 13 states. [2020-10-12 11:03:40,404 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-12 11:03:40,545 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-12 11:03:40,840 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2020-10-12 11:03:41,087 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 89 [2020-10-12 11:03:41,326 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-10-12 11:03:41,896 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2020-10-12 11:03:42,396 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2020-10-12 11:03:42,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:03:42,899 INFO L93 Difference]: Finished difference Result 843 states and 1178 transitions. [2020-10-12 11:03:42,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:03:42,900 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 136 [2020-10-12 11:03:42,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:03:42,905 INFO L225 Difference]: With dead ends: 843 [2020-10-12 11:03:42,905 INFO L226 Difference]: Without dead ends: 494 [2020-10-12 11:03:42,906 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:03:42,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-10-12 11:03:42,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 490. [2020-10-12 11:03:42,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-10-12 11:03:42,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 632 transitions. [2020-10-12 11:03:42,940 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 632 transitions. Word has length 136 [2020-10-12 11:03:42,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:03:42,940 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 632 transitions. [2020-10-12 11:03:42,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:03:42,941 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 632 transitions. [2020-10-12 11:03:42,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-12 11:03:42,943 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:03:42,944 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:03:42,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 11:03:42,944 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:03:42,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:03:42,944 INFO L82 PathProgramCache]: Analyzing trace with hash 679931674, now seen corresponding path program 1 times [2020-10-12 11:03:42,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:03:42,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [295497898] [2020-10-12 11:03:42,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:03:42,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:42,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:43,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:43,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:45,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:45,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:45,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:45,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:47,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:47,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-12 11:03:47,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 11:03:47,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4840 [2020-10-12 11:03:47,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:47,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:03:47,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-12 11:03:47,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 11:03:47,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 11:03:48,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:03:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:48,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:48,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:48,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:03:48,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:48,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:03:48,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:48,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:03:48,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:03:48,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:03:48,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:48,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:03:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:48,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:48,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:48,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:03:48,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:48,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:03:48,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:48,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:03:48,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:03:48,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:03:48,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:48,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:03:48,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:48,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:48,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:48,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:03:48,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:48,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:03:48,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:48,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:03:48,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:03:48,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 11:03:48,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:48,649 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:03:48,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [295497898] [2020-10-12 11:03:48,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:03:48,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:03:48,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223864002] [2020-10-12 11:03:48,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:03:48,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:03:48,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:03:48,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:03:48,651 INFO L87 Difference]: Start difference. First operand 490 states and 632 transitions. Second operand 13 states. [2020-10-12 11:03:49,421 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 91 [2020-10-12 11:03:49,644 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 90 [2020-10-12 11:03:49,874 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2020-10-12 11:03:50,328 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2020-10-12 11:03:50,811 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2020-10-12 11:03:51,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:03:51,255 INFO L93 Difference]: Finished difference Result 989 states and 1342 transitions. [2020-10-12 11:03:51,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 11:03:51,258 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 140 [2020-10-12 11:03:51,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:03:51,264 INFO L225 Difference]: With dead ends: 989 [2020-10-12 11:03:51,264 INFO L226 Difference]: Without dead ends: 565 [2020-10-12 11:03:51,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:03:51,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-12 11:03:51,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 488. [2020-10-12 11:03:51,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2020-10-12 11:03:51,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 629 transitions. [2020-10-12 11:03:51,292 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 629 transitions. Word has length 140 [2020-10-12 11:03:51,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:03:51,292 INFO L479 AbstractCegarLoop]: Abstraction has 488 states and 629 transitions. [2020-10-12 11:03:51,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:03:51,292 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 629 transitions. [2020-10-12 11:03:51,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-12 11:03:51,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:03:51,295 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 11:03:51,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 11:03:51,295 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:03:51,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:03:51,296 INFO L82 PathProgramCache]: Analyzing trace with hash -741842158, now seen corresponding path program 1 times [2020-10-12 11:03:51,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:03:51,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2128316813] [2020-10-12 11:03:51,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:03:51,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:51,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:51,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:51,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:52,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:53,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:53,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-12 11:03:53,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:03:53,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1716 [2020-10-12 11:03:53,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:53,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:03:53,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:03:53,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 11:03:53,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:53,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:03:53,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:53,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:53,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:53,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:03:53,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:53,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:03:53,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:53,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:03:53,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:03:53,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:03:53,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:53,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:03:53,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:53,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:53,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:53,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:53,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:03:53,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:03:53,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 11:03:53,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:53,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:03:53,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:03:53,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:03:53,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:03:53,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:03:53,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:53,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:53,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:53,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 11:03:53,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:53,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 11:03:53,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:53,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:03:53,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:03:53,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 11:03:53,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:53,286 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:03:53,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2128316813] [2020-10-12 11:03:53,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:03:53,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 11:03:53,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170501581] [2020-10-12 11:03:53,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:03:53,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:03:53,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:03:53,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:03:53,289 INFO L87 Difference]: Start difference. First operand 488 states and 629 transitions. Second operand 7 states. [2020-10-12 11:03:54,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:03:54,750 INFO L93 Difference]: Finished difference Result 1220 states and 1664 transitions. [2020-10-12 11:03:54,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 11:03:54,751 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 144 [2020-10-12 11:03:54,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:03:54,756 INFO L225 Difference]: With dead ends: 1220 [2020-10-12 11:03:54,756 INFO L226 Difference]: Without dead ends: 798 [2020-10-12 11:03:54,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:03:54,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2020-10-12 11:03:54,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 780. [2020-10-12 11:03:54,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 780 states. [2020-10-12 11:03:54,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 972 transitions. [2020-10-12 11:03:54,811 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 972 transitions. Word has length 144 [2020-10-12 11:03:54,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:03:54,811 INFO L479 AbstractCegarLoop]: Abstraction has 780 states and 972 transitions. [2020-10-12 11:03:54,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:03:54,812 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 972 transitions. [2020-10-12 11:03:54,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-12 11:03:54,817 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:03:54,817 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:03:54,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 11:03:54,818 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:03:54,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:03:54,819 INFO L82 PathProgramCache]: Analyzing trace with hash -252923150, now seen corresponding path program 1 times [2020-10-12 11:03:54,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:03:54,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1233504747] [2020-10-12 11:03:54,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:03:54,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:54,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:54,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:55,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:55,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:58,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:59,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-12 11:03:59,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:03:59,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4146 [2020-10-12 11:03:59,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:59,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:03:59,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-12 11:03:59,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 11:03:59,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:59,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:03:59,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:59,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:59,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:59,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:03:59,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:59,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:03:59,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:59,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:03:59,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:03:59,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:03:59,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:59,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:03:59,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:59,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:59,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:59,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:03:59,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:59,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:03:59,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:59,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:03:59,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:03:59,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:03:59,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:59,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:03:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:59,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:59,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:59,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 11:03:59,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:59,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 11:03:59,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:59,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:03:59,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:03:59,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-12 11:03:59,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:59,615 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:03:59,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1233504747] [2020-10-12 11:03:59,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:03:59,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:03:59,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899529700] [2020-10-12 11:03:59,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:03:59,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:03:59,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:03:59,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:03:59,617 INFO L87 Difference]: Start difference. First operand 780 states and 972 transitions. Second operand 13 states. [2020-10-12 11:04:00,371 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2020-10-12 11:04:00,697 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2020-10-12 11:04:00,892 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-10-12 11:04:01,265 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2020-10-12 11:04:01,635 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2020-10-12 11:04:01,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:04:01,946 INFO L93 Difference]: Finished difference Result 1558 states and 2009 transitions. [2020-10-12 11:04:01,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:04:01,952 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 160 [2020-10-12 11:04:01,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:04:01,964 INFO L225 Difference]: With dead ends: 1558 [2020-10-12 11:04:01,964 INFO L226 Difference]: Without dead ends: 844 [2020-10-12 11:04:01,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:04:01,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2020-10-12 11:04:02,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 842. [2020-10-12 11:04:02,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 842 states. [2020-10-12 11:04:02,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1043 transitions. [2020-10-12 11:04:02,019 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1043 transitions. Word has length 160 [2020-10-12 11:04:02,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:04:02,020 INFO L479 AbstractCegarLoop]: Abstraction has 842 states and 1043 transitions. [2020-10-12 11:04:02,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:04:02,021 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1043 transitions. [2020-10-12 11:04:02,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-12 11:04:02,024 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:04:02,024 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, 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] [2020-10-12 11:04:02,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 11:04:02,025 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:04:02,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:04:02,025 INFO L82 PathProgramCache]: Analyzing trace with hash -470591456, now seen corresponding path program 1 times [2020-10-12 11:04:02,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:04:02,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [525173704] [2020-10-12 11:04:02,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:04:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:02,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:02,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:02,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:02,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:02,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:05,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:05,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-12 11:04:05,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:04:05,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3017 [2020-10-12 11:04:05,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:05,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 11:04:05,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:04:05,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 11:04:05,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:06,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:04:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:06,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:06,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:06,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:04:06,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:06,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:04:06,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:06,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:06,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:06,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:06,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:06,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:04:06,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:06,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:06,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:06,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:04:06,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:06,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:04:06,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:06,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:04:06,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:06,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 11:04:06,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:06,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:04:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:06,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:06,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:06,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:04:06,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:06,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 11:04:06,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:06,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:04:06,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:04:06,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 11:04:06,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:06,687 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 47 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 11:04:06,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [525173704] [2020-10-12 11:04:06,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:04:06,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 11:04:06,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102726335] [2020-10-12 11:04:06,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 11:04:06,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:04:06,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 11:04:06,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:04:06,689 INFO L87 Difference]: Start difference. First operand 842 states and 1043 transitions. Second operand 20 states. [2020-10-12 11:04:07,376 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-10-12 11:04:07,660 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-12 11:04:07,936 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-10-12 11:04:08,237 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2020-10-12 11:04:08,496 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-10-12 11:04:08,793 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-10-12 11:04:09,011 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2020-10-12 11:04:09,421 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-12 11:04:09,645 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2020-10-12 11:04:09,987 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-12 11:04:10,199 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2020-10-12 11:04:10,407 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-12 11:04:10,920 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2020-10-12 11:04:12,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:04:12,061 INFO L93 Difference]: Finished difference Result 1792 states and 2338 transitions. [2020-10-12 11:04:12,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-12 11:04:12,062 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 174 [2020-10-12 11:04:12,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:04:12,068 INFO L225 Difference]: With dead ends: 1792 [2020-10-12 11:04:12,068 INFO L226 Difference]: Without dead ends: 1016 [2020-10-12 11:04:12,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=557, Invalid=1335, Unknown=0, NotChecked=0, Total=1892 [2020-10-12 11:04:12,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2020-10-12 11:04:12,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 987. [2020-10-12 11:04:12,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 987 states. [2020-10-12 11:04:12,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1209 transitions. [2020-10-12 11:04:12,102 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1209 transitions. Word has length 174 [2020-10-12 11:04:12,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:04:12,102 INFO L479 AbstractCegarLoop]: Abstraction has 987 states and 1209 transitions. [2020-10-12 11:04:12,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 11:04:12,102 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1209 transitions. [2020-10-12 11:04:12,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-12 11:04:12,106 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:04:12,106 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:04:12,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 11:04:12,107 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:04:12,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:04:12,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1843118935, now seen corresponding path program 1 times [2020-10-12 11:04:12,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:04:12,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [337872551] [2020-10-12 11:04:12,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:04:12,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:12,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:12,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:12,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:12,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:12,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:13,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:14,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:15,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:17,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:17,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-10-12 11:04:17,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 11:04:17,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 11:04:17,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:17,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 11:04:17,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:04:17,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-12 11:04:17,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:17,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:04:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:17,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:17,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:17,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:04:17,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:17,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:04:17,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:17,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:04:17,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:17,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:04:17,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:17,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:04:17,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:17,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:17,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:17,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:17,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:04:17,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:04:17,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 11:04:17,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:17,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:04:17,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:04:17,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:04:17,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:17,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:04:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:17,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:17,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:17,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:17,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 11:04:17,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:04:17,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 11:04:17,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:17,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:04:17,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:04:17,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 11:04:17,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:17,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-12 11:04:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:17,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:17,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:17,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:04:17,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:17,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 11:04:17,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:17,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:04:17,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:04:17,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 11:04:17,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:17,373 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 63 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-12 11:04:17,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [337872551] [2020-10-12 11:04:17,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:04:17,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 11:04:17,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188489001] [2020-10-12 11:04:17,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:04:17,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:04:17,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:04:17,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:04:17,375 INFO L87 Difference]: Start difference. First operand 987 states and 1209 transitions. Second operand 7 states. [2020-10-12 11:04:18,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:04:18,658 INFO L93 Difference]: Finished difference Result 2236 states and 2919 transitions. [2020-10-12 11:04:18,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 11:04:18,661 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 186 [2020-10-12 11:04:18,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:04:18,670 INFO L225 Difference]: With dead ends: 2236 [2020-10-12 11:04:18,670 INFO L226 Difference]: Without dead ends: 1315 [2020-10-12 11:04:18,672 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-12 11:04:18,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2020-10-12 11:04:18,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 1271. [2020-10-12 11:04:18,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1271 states. [2020-10-12 11:04:18,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 1609 transitions. [2020-10-12 11:04:18,718 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 1609 transitions. Word has length 186 [2020-10-12 11:04:18,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:04:18,719 INFO L479 AbstractCegarLoop]: Abstraction has 1271 states and 1609 transitions. [2020-10-12 11:04:18,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:04:18,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 1609 transitions. [2020-10-12 11:04:18,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-12 11:04:18,725 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:04:18,725 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2020-10-12 11:04:18,725 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 11:04:18,725 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:04:18,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:04:18,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1626686294, now seen corresponding path program 1 times [2020-10-12 11:04:18,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:04:18,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [58608350] [2020-10-12 11:04:18,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:04:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:18,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:18,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:18,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:19,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:20,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:21,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:21,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:23,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:23,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-12 11:04:23,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 11:04:23,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 11:04:23,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:23,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:04:23,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:04:23,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 11:04:23,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:23,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:04:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:23,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:23,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:23,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:04:23,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:23,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:04:23,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:23,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:04:23,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:23,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:04:23,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:23,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:04:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:23,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:23,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:23,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:23,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:04:23,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:04:23,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 11:04:23,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:23,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:04:23,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:04:23,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:04:23,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:23,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:04:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:23,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:23,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:23,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 11:04:23,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:23,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 11:04:23,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:23,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:04:23,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:04:23,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 11:04:23,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:24,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-12 11:04:24,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:24,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:24,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:24,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:04:24,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:24,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:04:24,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:24,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:24,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 11:04:24,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:24,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:24,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 11:04:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:24,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:24,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:24,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:04:24,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:24,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:04:24,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:04:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:24,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:24,079 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 82 proven. 43 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-12 11:04:24,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [58608350] [2020-10-12 11:04:24,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:04:24,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 11:04:24,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581562025] [2020-10-12 11:04:24,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 11:04:24,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:04:24,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 11:04:24,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:04:24,082 INFO L87 Difference]: Start difference. First operand 1271 states and 1609 transitions. Second operand 8 states. [2020-10-12 11:04:25,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:04:25,412 INFO L93 Difference]: Finished difference Result 2629 states and 3378 transitions. [2020-10-12 11:04:25,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 11:04:25,413 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 201 [2020-10-12 11:04:25,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:04:25,420 INFO L225 Difference]: With dead ends: 2629 [2020-10-12 11:04:25,420 INFO L226 Difference]: Without dead ends: 1424 [2020-10-12 11:04:25,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-12 11:04:25,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1424 states. [2020-10-12 11:04:25,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1424 to 1422. [2020-10-12 11:04:25,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1422 states. [2020-10-12 11:04:25,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 1795 transitions. [2020-10-12 11:04:25,464 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 1795 transitions. Word has length 201 [2020-10-12 11:04:25,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:04:25,464 INFO L479 AbstractCegarLoop]: Abstraction has 1422 states and 1795 transitions. [2020-10-12 11:04:25,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 11:04:25,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 1795 transitions. [2020-10-12 11:04:25,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-10-12 11:04:25,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:04:25,470 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 11:04:25,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 11:04:25,471 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:04:25,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:04:25,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1240611758, now seen corresponding path program 1 times [2020-10-12 11:04:25,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:04:25,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1773369507] [2020-10-12 11:04:25,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:04:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:25,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:25,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:26,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:26,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:26,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:26,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-10-12 11:04:26,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:04:26,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1341 [2020-10-12 11:04:26,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:26,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 11:04:26,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-10-12 11:04:26,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-12 11:04:26,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:26,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:04:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:26,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:26,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:26,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:04:26,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:26,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:04:26,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:26,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:26,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:26,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:26,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:26,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:04:26,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:26,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:26,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:26,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:04:26,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:26,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:04:26,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:26,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:26,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:26,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:26,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:26,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:04:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:26,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:27,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:27,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 11:04:27,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:27,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:04:27,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:27,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:27,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:27,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:27,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:27,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 11:04:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:27,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:27,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:27,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:04:27,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:27,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:04:27,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:27,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:04:27,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:27,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 11:04:27,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:27,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 11:04:27,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:27,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:27,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:27,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:27,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:04:27,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:04:27,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 11:04:27,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:27,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:04:27,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:04:27,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 11:04:27,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:27,106 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 138 proven. 19 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-12 11:04:27,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1773369507] [2020-10-12 11:04:27,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:04:27,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 11:04:27,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739495601] [2020-10-12 11:04:27,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 11:04:27,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:04:27,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 11:04:27,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:04:27,108 INFO L87 Difference]: Start difference. First operand 1422 states and 1795 transitions. Second operand 6 states. [2020-10-12 11:04:28,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:04:28,283 INFO L93 Difference]: Finished difference Result 3354 states and 4301 transitions. [2020-10-12 11:04:28,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 11:04:28,284 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 231 [2020-10-12 11:04:28,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:04:28,296 INFO L225 Difference]: With dead ends: 3354 [2020-10-12 11:04:28,296 INFO L226 Difference]: Without dead ends: 1998 [2020-10-12 11:04:28,300 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:04:28,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1998 states. [2020-10-12 11:04:28,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1998 to 1984. [2020-10-12 11:04:28,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1984 states. [2020-10-12 11:04:28,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1984 states to 1984 states and 2482 transitions. [2020-10-12 11:04:28,367 INFO L78 Accepts]: Start accepts. Automaton has 1984 states and 2482 transitions. Word has length 231 [2020-10-12 11:04:28,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:04:28,368 INFO L479 AbstractCegarLoop]: Abstraction has 1984 states and 2482 transitions. [2020-10-12 11:04:28,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 11:04:28,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1984 states and 2482 transitions. [2020-10-12 11:04:28,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-10-12 11:04:28,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:04:28,378 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:04:28,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 11:04:28,379 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:04:28,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:04:28,379 INFO L82 PathProgramCache]: Analyzing trace with hash -544452777, now seen corresponding path program 1 times [2020-10-12 11:04:28,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:04:28,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1390930697] [2020-10-12 11:04:28,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:04:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:28,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:28,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:28,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:28,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:28,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:30,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:30,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-10-12 11:04:30,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:04:30,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2125 [2020-10-12 11:04:30,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:30,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:04:30,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:04:30,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 240 [2020-10-12 11:04:30,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:30,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:04:30,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:30,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:30,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:30,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:04:30,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:30,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:04:30,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:30,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:04:30,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:30,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:04:30,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:30,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:04:30,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:30,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:30,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:30,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:04:30,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:30,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:04:30,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:30,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:04:30,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:04:30,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 11:04:30,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:30,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:04:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:30,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:30,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:30,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:04:30,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:30,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 11:04:30,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:30,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:04:30,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:04:30,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 11:04:30,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:30,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 11:04:30,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:30,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:30,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:30,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 11:04:30,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:30,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 11:04:30,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:30,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:04:30,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:04:30,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 11:04:30,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:30,882 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-10-12 11:04:30,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1390930697] [2020-10-12 11:04:30,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:04:30,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:04:30,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96659810] [2020-10-12 11:04:30,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 11:04:30,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:04:30,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 11:04:30,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:04:30,883 INFO L87 Difference]: Start difference. First operand 1984 states and 2482 transitions. Second operand 8 states. [2020-10-12 11:04:32,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:04:32,557 INFO L93 Difference]: Finished difference Result 3775 states and 4797 transitions. [2020-10-12 11:04:32,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 11:04:32,560 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 232 [2020-10-12 11:04:32,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:04:32,581 INFO L225 Difference]: With dead ends: 3775 [2020-10-12 11:04:32,581 INFO L226 Difference]: Without dead ends: 3773 [2020-10-12 11:04:32,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:04:32,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3773 states. [2020-10-12 11:04:32,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3773 to 3431. [2020-10-12 11:04:32,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3431 states. [2020-10-12 11:04:32,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3431 states to 3431 states and 4277 transitions. [2020-10-12 11:04:32,692 INFO L78 Accepts]: Start accepts. Automaton has 3431 states and 4277 transitions. Word has length 232 [2020-10-12 11:04:32,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:04:32,693 INFO L479 AbstractCegarLoop]: Abstraction has 3431 states and 4277 transitions. [2020-10-12 11:04:32,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 11:04:32,693 INFO L276 IsEmpty]: Start isEmpty. Operand 3431 states and 4277 transitions. [2020-10-12 11:04:32,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-12 11:04:32,704 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:04:32,705 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 11:04:32,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 11:04:32,705 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:04:32,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:04:32,706 INFO L82 PathProgramCache]: Analyzing trace with hash 711899182, now seen corresponding path program 1 times [2020-10-12 11:04:32,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:04:32,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1412730056] [2020-10-12 11:04:32,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:04:32,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:32,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:32,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:32,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:33,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:34,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:34,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-12 11:04:34,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:04:34,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2058 [2020-10-12 11:04:34,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:34,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:04:34,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-12 11:04:34,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 11:04:34,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:34,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:04:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:34,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:34,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:34,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:04:34,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:34,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:04:34,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:34,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:34,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:34,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:34,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:34,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:04:34,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:34,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:34,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:34,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:04:34,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:34,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:04:34,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:34,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:34,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:34,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:34,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:34,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:04:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:34,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:34,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:34,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 11:04:34,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:34,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 11:04:34,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:34,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:04:34,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:34,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 11:04:34,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:34,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 11:04:34,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:34,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:35,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:35,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:04:35,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:35,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 11:04:35,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:35,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:04:35,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:04:35,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 11:04:35,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:35,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 11:04:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:35,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:35,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:35,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 11:04:35,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:35,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:04:35,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:35,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:35,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 11:04:35,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:35,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:35,081 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 145 proven. 14 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-12 11:04:35,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1412730056] [2020-10-12 11:04:35,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:04:35,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:04:35,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575903135] [2020-10-12 11:04:35,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:04:35,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:04:35,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:04:35,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:04:35,083 INFO L87 Difference]: Start difference. First operand 3431 states and 4277 transitions. Second operand 7 states. [2020-10-12 11:04:36,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:04:36,671 INFO L93 Difference]: Finished difference Result 7493 states and 9426 transitions. [2020-10-12 11:04:36,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 11:04:36,672 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 236 [2020-10-12 11:04:36,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:04:36,692 INFO L225 Difference]: With dead ends: 7493 [2020-10-12 11:04:36,692 INFO L226 Difference]: Without dead ends: 4128 [2020-10-12 11:04:36,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:04:36,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4128 states. [2020-10-12 11:04:36,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4128 to 4124. [2020-10-12 11:04:36,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4124 states. [2020-10-12 11:04:36,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4124 states to 4124 states and 5082 transitions. [2020-10-12 11:04:36,808 INFO L78 Accepts]: Start accepts. Automaton has 4124 states and 5082 transitions. Word has length 236 [2020-10-12 11:04:36,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:04:36,809 INFO L479 AbstractCegarLoop]: Abstraction has 4124 states and 5082 transitions. [2020-10-12 11:04:36,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:04:36,809 INFO L276 IsEmpty]: Start isEmpty. Operand 4124 states and 5082 transitions. [2020-10-12 11:04:36,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-10-12 11:04:36,824 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:04:36,824 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:04:36,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 11:04:36,825 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:04:36,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:04:36,825 INFO L82 PathProgramCache]: Analyzing trace with hash 107011086, now seen corresponding path program 1 times [2020-10-12 11:04:36,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:04:36,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1537414790] [2020-10-12 11:04:36,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:04:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:36,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:36,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:37,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:41,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:41,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:41,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:41,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-10-12 11:04:41,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:04:41,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 11:04:41,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:41,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:04:41,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-10-12 11:04:41,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 11:04:41,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:42,226 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2020-10-12 11:04:42,397 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-10-12 11:04:42,626 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 51 [2020-10-12 11:04:42,893 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 54 [2020-10-12 11:04:43,154 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 50 [2020-10-12 11:04:43,424 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 47 [2020-10-12 11:04:43,670 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 43 [2020-10-12 11:04:43,893 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 38 [2020-10-12 11:04:43,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:04:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:43,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:43,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:43,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:04:43,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:43,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:04:43,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:43,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:43,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:43,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:43,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:43,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:04:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:43,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:43,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:43,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:04:43,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:43,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:04:43,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:43,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:43,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:43,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:43,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:44,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:04:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:44,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:44,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:44,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:04:44,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:44,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:04:44,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:44,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:44,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:44,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:44,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:44,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-12 11:04:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:44,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:44,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:44,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:04:44,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:44,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:04:44,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:44,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:44,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:44,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:44,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:44,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 11:04:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:44,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:44,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:44,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-12 11:04:44,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:44,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 11:04:44,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:44,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:04:44,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:44,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 11:04:44,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:44,371 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 129 proven. 4 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2020-10-12 11:04:44,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1537414790] [2020-10-12 11:04:44,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:04:44,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:04:44,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078960519] [2020-10-12 11:04:44,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:04:44,372 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:04:44,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:04:44,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:04:44,373 INFO L87 Difference]: Start difference. First operand 4124 states and 5082 transitions. Second operand 13 states. [2020-10-12 11:04:45,663 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-12 11:04:45,841 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 11:04:46,228 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 117 [2020-10-12 11:04:46,732 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 114 [2020-10-12 11:04:47,137 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 111 [2020-10-12 11:04:47,589 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 108 [2020-10-12 11:04:48,037 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 103 [2020-10-12 11:04:48,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:04:48,093 INFO L93 Difference]: Finished difference Result 8249 states and 10257 transitions. [2020-10-12 11:04:48,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:04:48,094 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 252 [2020-10-12 11:04:48,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:04:48,111 INFO L225 Difference]: With dead ends: 8249 [2020-10-12 11:04:48,111 INFO L226 Difference]: Without dead ends: 4191 [2020-10-12 11:04:48,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-12 11:04:48,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4191 states. [2020-10-12 11:04:48,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4191 to 4187. [2020-10-12 11:04:48,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4187 states. [2020-10-12 11:04:48,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4187 states to 4187 states and 5154 transitions. [2020-10-12 11:04:48,223 INFO L78 Accepts]: Start accepts. Automaton has 4187 states and 5154 transitions. Word has length 252 [2020-10-12 11:04:48,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:04:48,224 INFO L479 AbstractCegarLoop]: Abstraction has 4187 states and 5154 transitions. [2020-10-12 11:04:48,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:04:48,224 INFO L276 IsEmpty]: Start isEmpty. Operand 4187 states and 5154 transitions. [2020-10-12 11:04:48,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-10-12 11:04:48,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:04:48,236 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:04:48,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 11:04:48,236 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:04:48,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:04:48,237 INFO L82 PathProgramCache]: Analyzing trace with hash -378628777, now seen corresponding path program 1 times [2020-10-12 11:04:48,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:04:48,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1536129388] [2020-10-12 11:04:48,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:04:48,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:48,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:48,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:48,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:53,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:53,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:53,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:53,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:53,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 313 [2020-10-12 11:04:53,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 11:04:53,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-10-12 11:04:53,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:53,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:04:53,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 197 [2020-10-12 11:04:53,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 11:04:53,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:53,755 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-12 11:04:53,893 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 43 [2020-10-12 11:04:54,024 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 39 [2020-10-12 11:04:54,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:04:54,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:54,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:54,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:54,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:04:54,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:54,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:04:54,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:54,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:54,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:54,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:54,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:54,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:04:54,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:54,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:54,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:54,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:04:54,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:54,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:04:54,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:54,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:54,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:54,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:54,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:54,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:04:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:54,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:54,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:54,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:04:54,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:54,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:04:54,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:54,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:54,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:54,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:54,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:54,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-12 11:04:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:54,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:54,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:54,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:04:54,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:54,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:04:54,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:54,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:54,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:54,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:54,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:54,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 11:04:54,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:54,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:54,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:54,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 11:04:54,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:54,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:04:54,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:54,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:54,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:54,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:54,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:54,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-12 11:04:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:54,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:54,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:54,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-12 11:04:54,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:54,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 11:04:54,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:54,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:04:54,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:54,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 11:04:54,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:54,688 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 171 proven. 5 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2020-10-12 11:04:54,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1536129388] [2020-10-12 11:04:54,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:04:54,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:04:54,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362922546] [2020-10-12 11:04:54,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:04:54,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:04:54,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:04:54,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:04:54,691 INFO L87 Difference]: Start difference. First operand 4187 states and 5154 transitions. Second operand 13 states. [2020-10-12 11:04:55,973 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 11:04:56,346 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-12 11:04:56,659 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-12 11:04:57,007 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-12 11:04:57,261 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-12 11:04:57,593 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-12 11:04:57,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:04:57,657 INFO L93 Difference]: Finished difference Result 8231 states and 10134 transitions. [2020-10-12 11:04:57,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:04:57,658 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 295 [2020-10-12 11:04:57,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:04:57,673 INFO L225 Difference]: With dead ends: 8231 [2020-10-12 11:04:57,674 INFO L226 Difference]: Without dead ends: 4110 [2020-10-12 11:04:57,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-12 11:04:57,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4110 states. [2020-10-12 11:04:57,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4110 to 4104. [2020-10-12 11:04:57,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4104 states. [2020-10-12 11:04:57,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4104 states to 4104 states and 4972 transitions. [2020-10-12 11:04:57,773 INFO L78 Accepts]: Start accepts. Automaton has 4104 states and 4972 transitions. Word has length 295 [2020-10-12 11:04:57,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:04:57,774 INFO L479 AbstractCegarLoop]: Abstraction has 4104 states and 4972 transitions. [2020-10-12 11:04:57,774 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:04:57,774 INFO L276 IsEmpty]: Start isEmpty. Operand 4104 states and 4972 transitions. [2020-10-12 11:04:57,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2020-10-12 11:04:57,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:04:57,786 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:04:57,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 11:04:57,787 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:04:57,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:04:57,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1150179435, now seen corresponding path program 1 times [2020-10-12 11:04:57,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:04:57,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460900082] [2020-10-12 11:04:57,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:04:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:57,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:57,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:58,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:00,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:02,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:02,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 335 [2020-10-12 11:05:02,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:05:02,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-12 11:05:02,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:02,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:02,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-12 11:05:02,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-12 11:05:02,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:02,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:02,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:02,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:02,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:02,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:02,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:02,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:05:02,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:02,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:02,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:02,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:02,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:02,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:05:02,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:02,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:02,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:02,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:05:02,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:02,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 11:05:02,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:02,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:02,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:02,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 11:05:02,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:05:03,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:05:03,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:03,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:03,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:03,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:05:03,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:03,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-12 11:05:03,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:03,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:03,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:05:03,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 11:05:03,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:03,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-12 11:05:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:03,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:03,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:03,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:05:03,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:03,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:05:03,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:03,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:03,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 11:05:03,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:03,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:05:03,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 11:05:03,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:03,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:03,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:03,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 11:05:03,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:03,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 11:05:03,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:03,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:03,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 11:05:03,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:03,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:05:03,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-12 11:05:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:03,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:03,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:03,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-12 11:05:03,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:03,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 11:05:03,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:03,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:03,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-12 11:05:03,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:03,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:05:03,433 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 236 proven. 102 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2020-10-12 11:05:03,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1460900082] [2020-10-12 11:05:03,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:05:03,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:05:03,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487166741] [2020-10-12 11:05:03,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:05:03,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:03,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:05:03,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:05:03,440 INFO L87 Difference]: Start difference. First operand 4104 states and 4972 transitions. Second operand 7 states. [2020-10-12 11:05:04,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:05:04,942 INFO L93 Difference]: Finished difference Result 8422 states and 10202 transitions. [2020-10-12 11:05:04,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 11:05:04,943 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 317 [2020-10-12 11:05:04,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:05:04,965 INFO L225 Difference]: With dead ends: 8422 [2020-10-12 11:05:04,965 INFO L226 Difference]: Without dead ends: 4384 [2020-10-12 11:05:04,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 11:05:04,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4384 states. [2020-10-12 11:05:05,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4384 to 4241. [2020-10-12 11:05:05,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4241 states. [2020-10-12 11:05:05,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4241 states to 4241 states and 5106 transitions. [2020-10-12 11:05:05,067 INFO L78 Accepts]: Start accepts. Automaton has 4241 states and 5106 transitions. Word has length 317 [2020-10-12 11:05:05,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:05:05,068 INFO L479 AbstractCegarLoop]: Abstraction has 4241 states and 5106 transitions. [2020-10-12 11:05:05,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:05:05,068 INFO L276 IsEmpty]: Start isEmpty. Operand 4241 states and 5106 transitions. [2020-10-12 11:05:05,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2020-10-12 11:05:05,083 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:05:05,083 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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] [2020-10-12 11:05:05,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 11:05:05,083 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:05:05,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:05:05,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1025760639, now seen corresponding path program 1 times [2020-10-12 11:05:05,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:05:05,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921417123] [2020-10-12 11:05:05,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:05:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:05,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:05,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:06,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:06,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:06,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 357 [2020-10-12 11:05:06,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:05:06,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1559 [2020-10-12 11:05:06,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:06,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:06,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-12 11:05:06,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 11:05:06,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:06,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:06,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:06,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:06,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:06,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:06,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:06,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:05:06,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:06,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:06,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:06,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:06,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:06,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:05:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:06,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:06,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:06,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 11:05:06,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:06,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 11:05:06,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:06,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:06,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:06,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:06,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:06,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 11:05:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:06,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:06,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:06,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:05:06,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:06,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 11:05:06,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:06,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:06,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:06,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 11:05:06,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:06,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 11:05:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:06,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:06,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:06,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:05:06,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:06,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:05:06,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:06,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:06,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:05:06,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 11:05:06,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:06,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 11:05:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:07,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:07,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:07,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 11:05:07,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:07,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 11:05:07,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 11:05:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:07,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:07,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-12 11:05:07,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:07,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:07,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:07,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-12 11:05:07,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:07,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 11:05:07,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:07,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:07,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-12 11:05:07,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:07,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:07,108 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 253 proven. 26 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2020-10-12 11:05:07,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921417123] [2020-10-12 11:05:07,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:05:07,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:05:07,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672280537] [2020-10-12 11:05:07,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:05:07,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:07,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:05:07,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:05:07,110 INFO L87 Difference]: Start difference. First operand 4241 states and 5106 transitions. Second operand 7 states. [2020-10-12 11:05:08,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:05:08,578 INFO L93 Difference]: Finished difference Result 8428 states and 10158 transitions. [2020-10-12 11:05:08,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 11:05:08,579 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 339 [2020-10-12 11:05:08,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:05:08,591 INFO L225 Difference]: With dead ends: 8428 [2020-10-12 11:05:08,591 INFO L226 Difference]: Without dead ends: 4253 [2020-10-12 11:05:08,598 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:05:08,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4253 states. [2020-10-12 11:05:08,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4253 to 4243. [2020-10-12 11:05:08,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4243 states. [2020-10-12 11:05:08,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4243 states to 4243 states and 5092 transitions. [2020-10-12 11:05:08,680 INFO L78 Accepts]: Start accepts. Automaton has 4243 states and 5092 transitions. Word has length 339 [2020-10-12 11:05:08,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:05:08,680 INFO L479 AbstractCegarLoop]: Abstraction has 4243 states and 5092 transitions. [2020-10-12 11:05:08,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:05:08,681 INFO L276 IsEmpty]: Start isEmpty. Operand 4243 states and 5092 transitions. [2020-10-12 11:05:08,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2020-10-12 11:05:08,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:05:08,694 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:05:08,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 11:05:08,694 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:05:08,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:05:08,695 INFO L82 PathProgramCache]: Analyzing trace with hash 930442366, now seen corresponding path program 1 times [2020-10-12 11:05:08,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:05:08,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2005788897] [2020-10-12 11:05:08,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:05:08,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:08,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:08,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:09,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:10,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:10,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 361 [2020-10-12 11:05:10,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:05:10,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1441 [2020-10-12 11:05:10,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:10,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:10,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 245 [2020-10-12 11:05:10,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-12 11:05:10,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:10,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:10,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:10,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:10,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:10,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:10,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:05:10,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:10,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:10,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:10,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:10,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:10,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:05:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:10,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:10,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:10,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:05:10,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:10,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:05:10,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:10,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:10,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:10,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:10,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:10,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:05:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:10,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:10,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:10,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:05:10,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:10,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 11:05:10,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:10,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:10,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:10,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:10,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:10,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 11:05:10,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:10,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:10,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:10,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 11:05:10,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:10,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:05:10,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:10,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:10,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:10,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:10,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:10,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 11:05:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:10,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:10,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:10,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:05:10,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:10,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:05:10,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:10,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:10,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:10,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:10,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:10,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 11:05:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:10,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:10,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:10,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 11:05:10,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:10,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:05:10,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:10,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:10,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:10,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:10,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:10,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-12 11:05:10,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:10,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:10,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:10,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-12 11:05:10,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:10,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 11:05:10,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:10,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:10,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:10,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 11:05:10,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:10,485 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 216 proven. 6 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2020-10-12 11:05:10,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2005788897] [2020-10-12 11:05:10,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:05:10,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:05:10,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500121265] [2020-10-12 11:05:10,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:05:10,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:10,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:05:10,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:05:10,487 INFO L87 Difference]: Start difference. First operand 4243 states and 5092 transitions. Second operand 5 states. [2020-10-12 11:05:11,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:05:11,729 INFO L93 Difference]: Finished difference Result 9240 states and 11153 transitions. [2020-10-12 11:05:11,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:05:11,730 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 341 [2020-10-12 11:05:11,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:05:11,731 INFO L225 Difference]: With dead ends: 9240 [2020-10-12 11:05:11,731 INFO L226 Difference]: Without dead ends: 0 [2020-10-12 11:05:11,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:05:11,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-12 11:05:11,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-12 11:05:11,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-12 11:05:11,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-12 11:05:11,749 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 341 [2020-10-12 11:05:11,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:05:11,749 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-12 11:05:11,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:05:11,750 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-12 11:05:11,750 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-12 11:05:11,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 11:05:11,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-12 11:05:12,486 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 76 [2020-10-12 11:05:12,641 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 55 [2020-10-12 11:05:14,053 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 309 DAG size of output: 131 [2020-10-12 11:05:14,457 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2020-10-12 11:05:14,661 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2020-10-12 11:05:14,666 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-12 11:05:14,667 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-12 11:05:14,667 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-12 11:05:14,667 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-12 11:05:14,667 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-12 11:05:14,667 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,667 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,667 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,668 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,668 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,668 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,668 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-12 11:05:14,668 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-12 11:05:14,668 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-12 11:05:14,668 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-12 11:05:14,668 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-12 11:05:14,668 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-12 11:05:14,669 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-12 11:05:14,669 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-12 11:05:14,669 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-12 11:05:14,669 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-12 11:05:14,669 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,669 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,669 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,670 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,670 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,670 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,670 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-12 11:05:14,670 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-12 11:05:14,670 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-12 11:05:14,670 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-12 11:05:14,670 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-12 11:05:14,670 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-12 11:05:14,671 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-12 11:05:14,671 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-12 11:05:14,671 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-12 11:05:14,671 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-12 11:05:14,671 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-12 11:05:14,671 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 506) no Hoare annotation was computed. [2020-10-12 11:05:14,671 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-12 11:05:14,672 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-12 11:05:14,672 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-12 11:05:14,672 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-12 11:05:14,672 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,672 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,672 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,672 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,672 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,672 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-12 11:05:14,673 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-12 11:05:14,673 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-12 11:05:14,673 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-12 11:05:14,673 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-12 11:05:14,673 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-12 11:05:14,673 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-12 11:05:14,673 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-12 11:05:14,673 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-12 11:05:14,675 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,675 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,675 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,675 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,675 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,676 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-12 11:05:14,677 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-12 11:05:14,677 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-12 11:05:14,677 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-12 11:05:14,681 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-12 11:05:14,681 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-12 11:05:14,681 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-12 11:05:14,681 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-12 11:05:14,682 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-12 11:05:14,682 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-12 11:05:14,682 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-12 11:05:14,682 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-12 11:05:14,682 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-12 11:05:14,682 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,682 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,682 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,682 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,682 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,683 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-12 11:05:14,683 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-12 11:05:14,683 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-12 11:05:14,683 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-12 11:05:14,683 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-12 11:05:14,683 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-12 11:05:14,683 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-12 11:05:14,683 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-12 11:05:14,683 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-12 11:05:14,683 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,684 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,684 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,684 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,684 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,684 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,684 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-12 11:05:14,684 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,684 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-12 11:05:14,684 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-12 11:05:14,684 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-12 11:05:14,685 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-12 11:05:14,685 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-12 11:05:14,685 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-12 11:05:14,685 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-12 11:05:14,685 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-12 11:05:14,685 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-12 11:05:14,685 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-12 11:05:14,685 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-12 11:05:14,685 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-12 11:05:14,685 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-12 11:05:14,686 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,686 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,686 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,686 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,686 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,686 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-12 11:05:14,686 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-12 11:05:14,686 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-12 11:05:14,686 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-12 11:05:14,686 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-12 11:05:14,687 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-12 11:05:14,687 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-12 11:05:14,687 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-12 11:05:14,687 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,687 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,687 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,689 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,689 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,689 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-12 11:05:14,689 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-12 11:05:14,690 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-12 11:05:14,690 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-12 11:05:14,690 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-12 11:05:14,690 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-12 11:05:14,691 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-12 11:05:14,691 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-12 11:05:14,691 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-12 11:05:14,691 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-12 11:05:14,691 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse12 (= |old(~a21~0)| 1)) (.cse0 (= ~a17~0 |old(~a17~0)|)) (.cse1 (= ~a7~0 |old(~a7~0)|)) (.cse2 (= ~a21~0 |old(~a21~0)|)) (.cse3 (= ~a20~0 |old(~a20~0)|)) (.cse9 (= ~a16~0 |old(~a16~0)|)) (.cse4 (= ~a8~0 |old(~a8~0)|))) (let ((.cse6 (not (<= |old(~a16~0)| 4))) (.cse7 (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| 2)) (not (<= 2 |calculate_output_#in~input|))) (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|))) (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1))))) (.cse8 (not (= ~a12~0 8))) (.cse10 (and .cse0 .cse1 .cse2 .cse3 .cse9 .cse4)) (.cse5 (not .cse12)) (.cse11 (= |old(~a7~0)| 1))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= 5 ~a16~0)) (not (= 5 |old(~a16~0)|)) .cse5) (or (and .cse1 .cse0 (< 12 ~a8~0) .cse2 .cse3 (<= ~a16~0 4) (<= 4 ~a16~0) (<= ~a8~0 13)) (and (not (<= |old(~a21~0)| 0)) (not (<= 2 |old(~a21~0)|))) .cse6 (not (<= |old(~a7~0)| 1)) (not (<= |old(~a17~0)| 0)) (not (<= |old(~a20~0)| 1)) (not (< 0 |old(~a7~0)|)) (not (<= 4 |old(~a16~0)|)) .cse7 (not (<= |old(~a8~0)| 13)) (not (< 12 |old(~a8~0)|)) .cse8 (not (< 0 |old(~a20~0)|))) (or (and .cse0 .cse1 .cse2 .cse3 (= 14 ~a8~0) .cse9) (not (= 14 |old(~a8~0)|)) .cse5) (or (not (<= 15 |old(~a8~0)|)) .cse10 .cse6 .cse5) (or (not (= |old(~a8~0)| 13)) .cse7 (and .cse1 .cse0 .cse2 .cse3 .cse9 (= ~a8~0 13)) (not .cse11) (not (= 6 |old(~a16~0)|)) (not (= |old(~a20~0)| 1)) .cse12 .cse8 (not (= 0 |old(~a17~0)|))) (or (not (= |old(~a17~0)| 1)) (and .cse1 .cse2 .cse3 .cse9 .cse4 (= ~a17~0 1))) (or .cse10 .cse5 .cse11)))) [2020-10-12 11:05:14,692 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-12 11:05:14,692 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,692 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,692 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,692 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,692 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-12 11:05:14,692 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,692 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,692 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-12 11:05:14,693 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-12 11:05:14,693 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-12 11:05:14,693 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-12 11:05:14,693 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-12 11:05:14,693 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-12 11:05:14,693 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-12 11:05:14,693 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-12 11:05:14,693 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-12 11:05:14,693 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-12 11:05:14,693 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-12 11:05:14,694 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-12 11:05:14,694 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,694 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,694 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,694 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,694 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,694 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-12 11:05:14,694 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,694 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-12 11:05:14,694 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-12 11:05:14,695 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-12 11:05:14,695 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-12 11:05:14,695 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-12 11:05:14,695 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-12 11:05:14,695 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-12 11:05:14,695 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-12 11:05:14,695 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-12 11:05:14,695 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-12 11:05:14,695 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-12 11:05:14,695 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-12 11:05:14,696 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-12 11:05:14,696 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-12 11:05:14,696 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,696 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,696 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,696 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,696 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,696 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:14,696 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-12 11:05:14,697 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-12 11:05:14,697 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-12 11:05:14,697 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-12 11:05:14,697 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-12 11:05:14,697 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-12 11:05:14,697 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-12 11:05:14,697 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-12 11:05:14,697 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-12 11:05:14,697 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-12 11:05:14,697 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-12 11:05:14,698 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (= ~a12~0 8) (= ~a8~0 15) (= ~a20~0 1) (= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-12 11:05:14,698 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-12 11:05:14,698 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-12 11:05:14,698 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 15) (= 5 ~a16~0) (= ~a7~0 0)) (not (= |old(~a17~0)| 1)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a21~0)| 1)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-10-12 11:05:14,698 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-12 11:05:14,699 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 4)) (.cse3 (= ~a7~0 1)) (.cse2 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 2 main_~input~0) (<= main_~input~0 2)) (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)))) (.cse0 (= ~a21~0 1))) (or (and .cse0 (= 5 ~a16~0)) (and .cse0 .cse1 (<= 15 ~a8~0)) (not (= |old(~a20~0)| 1)) (not (= |old(~a21~0)| 1)) (= ~a17~0 1) (and (<= 1 ~a7~0) (<= 13 ~a8~0) (<= 1 ~a20~0) .cse1 .cse2 (<= ~a17~0 0) (<= 4 ~a16~0) (<= ~a20~0 1) (<= ~a7~0 1) (or (< 1 ~a21~0) (<= ~a21~0 0)) (<= ~a8~0 13)) (and .cse0 (= 14 ~a8~0)) (and .cse0 (not .cse3)) (not (= |old(~a17~0)| 1)) (and .cse3 (= ~a16~0 6) .cse2 (not .cse0) (= ~a8~0 13) (= ~a20~0 1) (= ~a17~0 0)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0)))) [2020-10-12 11:05:14,699 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-12 11:05:14,699 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-12 11:05:14,699 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 4)) (.cse0 (= ~a21~0 1)) (.cse2 (= ~a7~0 1))) (or (and .cse0 (= 5 ~a16~0)) (and (<= 1 ~a7~0) (<= 13 ~a8~0) (<= 1 ~a20~0) .cse1 (<= ~a17~0 0) (<= 4 ~a16~0) (<= ~a20~0 1) (<= ~a7~0 1) (or (< 1 ~a21~0) (<= ~a21~0 0)) (<= ~a8~0 13)) (and .cse0 .cse1 (<= 15 ~a8~0)) (not (= |old(~a20~0)| 1)) (and .cse2 (= ~a16~0 6) (not .cse0) (= ~a8~0 13) (= ~a20~0 1) (= ~a17~0 0)) (not (= |old(~a21~0)| 1)) (= ~a17~0 1) (and .cse0 (= 14 ~a8~0)) (and .cse0 (not .cse2)) (not (= |old(~a17~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0)))) [2020-10-12 11:05:14,699 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-12 11:05:14,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 11:05:14 BoogieIcfgContainer [2020-10-12 11:05:14,749 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 11:05:14,753 INFO L168 Benchmark]: Toolchain (without parser) took 116741.17 ms. Allocated memory was 140.5 MB in the beginning and 1.4 GB in the end (delta: 1.3 GB). Free memory was 102.1 MB in the beginning and 899.6 MB in the end (delta: -797.5 MB). Peak memory consumption was 510.0 MB. Max. memory is 7.1 GB. [2020-10-12 11:05:14,754 INFO L168 Benchmark]: CDTParser took 0.24 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-12 11:05:14,755 INFO L168 Benchmark]: CACSL2BoogieTranslator took 791.70 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 101.9 MB in the beginning and 170.5 MB in the end (delta: -68.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. [2020-10-12 11:05:14,755 INFO L168 Benchmark]: Boogie Preprocessor took 104.54 ms. Allocated memory is still 205.0 MB. Free memory was 170.5 MB in the beginning and 165.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-10-12 11:05:14,756 INFO L168 Benchmark]: RCFGBuilder took 1263.98 ms. Allocated memory was 205.0 MB in the beginning and 238.6 MB in the end (delta: 33.6 MB). Free memory was 165.7 MB in the beginning and 178.3 MB in the end (delta: -12.6 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB. [2020-10-12 11:05:14,759 INFO L168 Benchmark]: TraceAbstraction took 114575.26 ms. Allocated memory was 238.6 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 176.8 MB in the beginning and 899.6 MB in the end (delta: -722.8 MB). Peak memory consumption was 486.7 MB. Max. memory is 7.1 GB. [2020-10-12 11:05:14,767 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 791.70 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 101.9 MB in the beginning and 170.5 MB in the end (delta: -68.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.54 ms. Allocated memory is still 205.0 MB. Free memory was 170.5 MB in the beginning and 165.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1263.98 ms. Allocated memory was 205.0 MB in the beginning and 238.6 MB in the end (delta: 33.6 MB). Free memory was 165.7 MB in the beginning and 178.3 MB in the end (delta: -12.6 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 114575.26 ms. Allocated memory was 238.6 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 176.8 MB in the beginning and 899.6 MB in the end (delta: -722.8 MB). Peak memory consumption was 486.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 506]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((((a21 == 1 && 5 == a16) || (((((((((1 <= a7 && 13 <= a8) && 1 <= a20) && a16 <= 4) && a17 <= 0) && 4 <= a16) && a20 <= 1) && a7 <= 1) && (1 < a21 || a21 <= 0)) && a8 <= 13)) || ((a21 == 1 && a16 <= 4) && 15 <= a8)) || !(\old(a20) == 1)) || (((((a7 == 1 && a16 == 6) && !(a21 == 1)) && a8 == 13) && a20 == 1) && a17 == 0)) || !(\old(a21) == 1)) || a17 == 1) || (a21 == 1 && 14 == a8)) || (a21 == 1 && !(a7 == 1))) || !(\old(a17) == 1)) || !(5 == \old(a16))) || !(15 == \old(a8))) || !(a12 == 8)) || !(\old(a7) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 111.5s, OverallIterations: 18, TraceHistogramMax: 7, AutomataDifference: 40.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 463 SDtfs, 7541 SDslu, 809 SDs, 0 SdLazy, 17202 SolverSat, 1805 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 461 GetRequests, 185 SyntacticMatches, 10 SemanticMatches, 266 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 889 ImplicationChecksByTransitivity, 22.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4243occurred in iteration=17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 18 MinimizatonAttempts, 719 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 314 PreInvPairs, 399 NumberOfFragments, 825 HoareAnnotationTreeSize, 314 FomulaSimplifications, 14697 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4528 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 67.3s InterpolantComputationTime, 3751 NumberOfCodeBlocks, 3751 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3733 ConstructedInterpolants, 0 QuantifiedInterpolants, 5788485 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 1 PerfectInterpolantSequences, 3024/3450 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...