/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label12.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:09:15,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:09:15,164 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:09:15,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:09:15,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:09:15,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:09:15,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:09:15,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:09:15,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:09:15,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:09:15,225 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:09:15,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:09:15,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:09:15,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:09:15,231 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:09:15,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:09:15,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:09:15,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:09:15,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:09:15,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:09:15,247 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:09:15,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:09:15,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:09:15,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:09:15,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:09:15,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:09:15,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:09:15,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:09:15,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:09:15,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:09:15,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:09:15,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:09:15,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:09:15,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:09:15,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:09:15,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:09:15,277 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:09:15,277 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:09:15,277 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:09:15,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:09:15,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:09:15,281 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 06:09:15,316 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:09:15,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:09:15,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:09:15,319 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:09:15,319 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:09:15,319 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:09:15,319 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:09:15,320 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:09:15,320 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:09:15,320 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:09:15,321 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:09:15,321 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:09:15,321 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:09:15,322 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:09:15,322 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:09:15,322 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:09:15,322 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:09:15,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:09:15,323 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:09:15,323 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:09:15,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:09:15,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:09:15,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:09:15,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:09:15,324 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:09:15,324 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:09:15,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:09:15,325 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:09:15,325 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:09:15,325 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 06:09:15,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:09:15,642 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:09:15,645 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:09:15,647 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:09:15,647 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:09:15,648 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label12.c [2020-10-13 06:09:15,712 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3862b60a0/2c2cb8d8150640249db92911eed8f4b8/FLAGd94a52398 [2020-10-13 06:09:16,257 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:09:16,258 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label12.c [2020-10-13 06:09:16,277 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3862b60a0/2c2cb8d8150640249db92911eed8f4b8/FLAGd94a52398 [2020-10-13 06:09:16,547 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3862b60a0/2c2cb8d8150640249db92911eed8f4b8 [2020-10-13 06:09:16,555 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:09:16,557 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:09:16,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:09:16,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:09:16,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:09:16,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:09:16" (1/1) ... [2020-10-13 06:09:16,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6317371b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:16, skipping insertion in model container [2020-10-13 06:09:16,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:09:16" (1/1) ... [2020-10-13 06:09:16,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:09:16,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:09:17,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:09:17,302 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:09:17,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:09:17,448 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:09:17,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:17 WrapperNode [2020-10-13 06:09:17,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:09:17,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:09:17,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:09:17,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:09:17,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:17" (1/1) ... [2020-10-13 06:09:17,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:17" (1/1) ... [2020-10-13 06:09:17,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:17" (1/1) ... [2020-10-13 06:09:17,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:17" (1/1) ... [2020-10-13 06:09:17,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:17" (1/1) ... [2020-10-13 06:09:17,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:17" (1/1) ... [2020-10-13 06:09:17,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:17" (1/1) ... [2020-10-13 06:09:17,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:09:17,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:09:17,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:09:17,575 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:09:17,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:17" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:09:17,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:09:17,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:09:17,660 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:09:17,660 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:09:17,660 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:09:17,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:09:17,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:09:17,661 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:09:17,661 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:09:17,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:09:17,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:09:18,839 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:09:18,840 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:09:18,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:09:18 BoogieIcfgContainer [2020-10-13 06:09:18,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:09:18,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:09:18,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:09:18,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:09:18,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:09:16" (1/3) ... [2020-10-13 06:09:18,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d797b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:09:18, skipping insertion in model container [2020-10-13 06:09:18,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:17" (2/3) ... [2020-10-13 06:09:18,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d797b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:09:18, skipping insertion in model container [2020-10-13 06:09:18,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:09:18" (3/3) ... [2020-10-13 06:09:18,855 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label12.c [2020-10-13 06:09:18,866 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:09:18,874 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:09:18,889 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:09:18,918 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:09:18,918 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:09:18,918 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:09:18,918 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:09:18,918 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:09:18,919 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:09:18,919 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:09:18,919 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:09:18,943 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-10-13 06:09:18,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-13 06:09:18,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:18,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:09:18,959 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:18,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:18,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1251139866, now seen corresponding path program 1 times [2020-10-13 06:09:18,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:18,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1710917461] [2020-10-13 06:09:18,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:19,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:19,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:20,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:20,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-13 06:09:20,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:09:20,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1744 [2020-10-13 06:09:20,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:20,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 06:09:20,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:09:20,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:09:20,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:09:21,535 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-10-13 06:09:21,726 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 42 [2020-10-13 06:09:21,960 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 46 [2020-10-13 06:09:22,211 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 42 [2020-10-13 06:09:22,389 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 37 [2020-10-13 06:09:22,545 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 32 [2020-10-13 06:09:22,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:22,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:22,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:22,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:22,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:22,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:09:22,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:22,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:22,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:22,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:09:22,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:22,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:09:22,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1710917461] [2020-10-13 06:09:22,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:09:22,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 06:09:22,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894470592] [2020-10-13 06:09:22,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 06:09:22,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:22,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 06:09:22,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:09:22,822 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 11 states. [2020-10-13 06:09:23,275 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2020-10-13 06:09:23,533 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-13 06:09:23,827 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2020-10-13 06:09:24,188 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 95 [2020-10-13 06:09:24,859 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 91 [2020-10-13 06:09:25,394 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 86 [2020-10-13 06:09:26,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:26,773 INFO L93 Difference]: Finished difference Result 536 states and 892 transitions. [2020-10-13 06:09:26,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:09:26,776 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 124 [2020-10-13 06:09:26,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:26,791 INFO L225 Difference]: With dead ends: 536 [2020-10-13 06:09:26,791 INFO L226 Difference]: Without dead ends: 236 [2020-10-13 06:09:26,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:09:26,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-13 06:09:26,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-10-13 06:09:26,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-13 06:09:26,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 323 transitions. [2020-10-13 06:09:26,869 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 323 transitions. Word has length 124 [2020-10-13 06:09:26,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:26,870 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 323 transitions. [2020-10-13 06:09:26,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 06:09:26,870 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 323 transitions. [2020-10-13 06:09:26,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-13 06:09:26,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:26,875 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:09:26,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:09:26,876 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:26,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:26,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1339032489, now seen corresponding path program 1 times [2020-10-13 06:09:26,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:26,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1350358720] [2020-10-13 06:09:26,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:26,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:26,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:27,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:27,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:28,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:28,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-13 06:09:28,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:09:28,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1341 [2020-10-13 06:09:28,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:28,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:09:28,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 06:09:28,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:09:28,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 06:09:28,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:28,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:28,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:28,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:28,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:28,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:09:28,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:28,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:28,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:28,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:28,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:09:28,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:28,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:28,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:28,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:28,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 06:09:28,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:28,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:09:28,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:28,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:28,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:28,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 06:09:28,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:28,794 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:09:28,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1350358720] [2020-10-13 06:09:28,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:28,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:09:28,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360601553] [2020-10-13 06:09:28,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:09:28,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:28,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:09:28,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:09:28,799 INFO L87 Difference]: Start difference. First operand 233 states and 323 transitions. Second operand 12 states. [2020-10-13 06:09:30,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:30,664 INFO L93 Difference]: Finished difference Result 549 states and 794 transitions. [2020-10-13 06:09:30,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-13 06:09:30,665 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 133 [2020-10-13 06:09:30,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:30,671 INFO L225 Difference]: With dead ends: 549 [2020-10-13 06:09:30,675 INFO L226 Difference]: Without dead ends: 236 [2020-10-13 06:09:30,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:09:30,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-13 06:09:30,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-10-13 06:09:30,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-13 06:09:30,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 308 transitions. [2020-10-13 06:09:30,710 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 308 transitions. Word has length 133 [2020-10-13 06:09:30,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:30,712 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 308 transitions. [2020-10-13 06:09:30,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:09:30,712 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 308 transitions. [2020-10-13 06:09:30,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-13 06:09:30,717 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:30,718 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:09:30,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:09:30,718 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:30,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:30,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1025913137, now seen corresponding path program 1 times [2020-10-13 06:09:30,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:30,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1187339820] [2020-10-13 06:09:30,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:30,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:30,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:30,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:30,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:32,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:32,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-13 06:09:32,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:09:32,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1404 [2020-10-13 06:09:32,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:32,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:09:32,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 06:09:32,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 06:09:32,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:32,666 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 40 [2020-10-13 06:09:33,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:33,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:33,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:33,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:33,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:33,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:09:33,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:33,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:33,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:33,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:33,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:33,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:33,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:33,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:33,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:33,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:09:33,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:33,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:09:33,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:33,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:33,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:33,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:09:33,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:33,315 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:09:33,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1187339820] [2020-10-13 06:09:33,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:33,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:09:33,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059479154] [2020-10-13 06:09:33,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:09:33,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:33,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:09:33,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:09:33,318 INFO L87 Difference]: Start difference. First operand 233 states and 308 transitions. Second operand 12 states. [2020-10-13 06:09:35,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:35,220 INFO L93 Difference]: Finished difference Result 554 states and 772 transitions. [2020-10-13 06:09:35,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:09:35,223 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 137 [2020-10-13 06:09:35,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:35,226 INFO L225 Difference]: With dead ends: 554 [2020-10-13 06:09:35,227 INFO L226 Difference]: Without dead ends: 327 [2020-10-13 06:09:35,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-10-13 06:09:35,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-13 06:09:35,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 318. [2020-10-13 06:09:35,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-13 06:09:35,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 397 transitions. [2020-10-13 06:09:35,252 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 397 transitions. Word has length 137 [2020-10-13 06:09:35,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:35,252 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 397 transitions. [2020-10-13 06:09:35,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:09:35,253 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 397 transitions. [2020-10-13 06:09:35,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-13 06:09:35,256 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:35,256 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:09:35,257 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:09:35,257 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:35,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:35,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1102274855, now seen corresponding path program 1 times [2020-10-13 06:09:35,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:35,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [379757545] [2020-10-13 06:09:35,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:35,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:35,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:35,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:35,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:35,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-13 06:09:35,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:09:35,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 346 [2020-10-13 06:09:35,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:35,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:35,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-13 06:09:35,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-13 06:09:35,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:35,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:35,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:35,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:35,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:35,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:35,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:09:35,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:35,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:35,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:35,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:35,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:35,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:35,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:35,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:35,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:35,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:09:35,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:35,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:09:35,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:35,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:35,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:35,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:35,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:35,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 06:09:35,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:35,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:35,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:35,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 06:09:35,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:35,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:09:35,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:35,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:35,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:35,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 06:09:35,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:35,965 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 06:09:35,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [379757545] [2020-10-13 06:09:35,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:35,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:09:35,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15731365] [2020-10-13 06:09:35,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:09:35,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:35,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:09:35,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:09:35,968 INFO L87 Difference]: Start difference. First operand 318 states and 397 transitions. Second operand 6 states. [2020-10-13 06:09:36,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:36,966 INFO L93 Difference]: Finished difference Result 724 states and 951 transitions. [2020-10-13 06:09:36,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:09:36,967 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 159 [2020-10-13 06:09:36,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:36,970 INFO L225 Difference]: With dead ends: 724 [2020-10-13 06:09:36,971 INFO L226 Difference]: Without dead ends: 323 [2020-10-13 06:09:36,972 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:09:36,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-10-13 06:09:36,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 318. [2020-10-13 06:09:36,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-13 06:09:36,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 395 transitions. [2020-10-13 06:09:36,991 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 395 transitions. Word has length 159 [2020-10-13 06:09:36,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:36,992 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 395 transitions. [2020-10-13 06:09:36,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:09:36,992 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 395 transitions. [2020-10-13 06:09:36,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-13 06:09:36,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:36,995 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:09:36,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:09:36,995 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:36,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:36,996 INFO L82 PathProgramCache]: Analyzing trace with hash 559159654, now seen corresponding path program 1 times [2020-10-13 06:09:36,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:36,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [268545399] [2020-10-13 06:09:36,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:37,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:37,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:37,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:37,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:38,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:38,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-13 06:09:38,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:09:38,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1090 [2020-10-13 06:09:38,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:38,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:09:38,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-13 06:09:38,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:09:38,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:38,551 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 40 [2020-10-13 06:09:38,672 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 36 [2020-10-13 06:09:39,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:39,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:39,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:39,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:39,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:39,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:39,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:09:39,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:39,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:39,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:39,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:39,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:09:39,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:39,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:39,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:39,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:09:39,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:39,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 06:09:39,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:39,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:39,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:39,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:09:39,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:09:39,373 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:09:39,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [268545399] [2020-10-13 06:09:39,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:39,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:09:39,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942850319] [2020-10-13 06:09:39,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:09:39,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:39,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:09:39,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:09:39,379 INFO L87 Difference]: Start difference. First operand 318 states and 395 transitions. Second operand 12 states. [2020-10-13 06:09:41,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:41,046 INFO L93 Difference]: Finished difference Result 723 states and 948 transitions. [2020-10-13 06:09:41,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 06:09:41,047 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 158 [2020-10-13 06:09:41,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:41,051 INFO L225 Difference]: With dead ends: 723 [2020-10-13 06:09:41,051 INFO L226 Difference]: Without dead ends: 401 [2020-10-13 06:09:41,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2020-10-13 06:09:41,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-13 06:09:41,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 394. [2020-10-13 06:09:41,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-13 06:09:41,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 475 transitions. [2020-10-13 06:09:41,069 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 475 transitions. Word has length 158 [2020-10-13 06:09:41,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:41,070 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 475 transitions. [2020-10-13 06:09:41,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:09:41,070 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 475 transitions. [2020-10-13 06:09:41,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-13 06:09:41,073 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:41,073 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:09:41,073 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:09:41,074 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:41,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:41,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1746381825, now seen corresponding path program 1 times [2020-10-13 06:09:41,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:41,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [138381606] [2020-10-13 06:09:41,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:41,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:41,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:41,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:41,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:42,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:42,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 06:09:42,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:09:42,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1416 [2020-10-13 06:09:42,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:42,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:42,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-13 06:09:42,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 06:09:42,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:42,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:42,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:42,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:42,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:42,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:42,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:09:42,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:42,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:42,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:42,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:42,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:42,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:42,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:42,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:42,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:42,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:09:42,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:42,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:09:42,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:42,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:42,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:42,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:42,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:42,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 06:09:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:42,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:42,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:42,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:09:42,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:42,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:09:42,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:42,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:42,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:42,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:09:42,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:42,774 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 06:09:42,775 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [138381606] [2020-10-13 06:09:42,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:42,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:09:42,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462003965] [2020-10-13 06:09:42,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:09:42,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:42,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:09:42,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:09:42,778 INFO L87 Difference]: Start difference. First operand 394 states and 475 transitions. Second operand 5 states. [2020-10-13 06:09:43,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:43,773 INFO L93 Difference]: Finished difference Result 874 states and 1106 transitions. [2020-10-13 06:09:43,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:09:43,773 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 166 [2020-10-13 06:09:43,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:43,776 INFO L225 Difference]: With dead ends: 874 [2020-10-13 06:09:43,777 INFO L226 Difference]: Without dead ends: 399 [2020-10-13 06:09:43,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:09:43,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-10-13 06:09:43,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 394. [2020-10-13 06:09:43,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-13 06:09:43,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 472 transitions. [2020-10-13 06:09:43,795 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 472 transitions. Word has length 166 [2020-10-13 06:09:43,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:43,795 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 472 transitions. [2020-10-13 06:09:43,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:09:43,795 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 472 transitions. [2020-10-13 06:09:43,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-13 06:09:43,798 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:43,798 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:09:43,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:09:43,798 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:43,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:43,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1782526020, now seen corresponding path program 1 times [2020-10-13 06:09:43,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:43,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1624620656] [2020-10-13 06:09:43,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:43,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:43,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:43,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:45,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:45,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-13 06:09:45,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:09:45,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1575 [2020-10-13 06:09:45,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:45,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:09:45,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-13 06:09:45,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:09:45,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:09:45,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:45,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:45,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:45,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:45,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:45,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:45,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:09:45,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:45,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:45,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:45,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:45,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:45,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:45,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:45,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:45,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:09:45,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:45,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 06:09:45,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:45,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:45,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:45,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:09:45,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:45,912 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 47 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:09:45,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1624620656] [2020-10-13 06:09:45,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:45,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:09:45,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370660910] [2020-10-13 06:09:45,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:09:45,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:45,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:09:45,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:09:45,914 INFO L87 Difference]: Start difference. First operand 394 states and 472 transitions. Second operand 12 states. [2020-10-13 06:09:48,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:48,186 INFO L93 Difference]: Finished difference Result 886 states and 1110 transitions. [2020-10-13 06:09:48,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 06:09:48,192 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 175 [2020-10-13 06:09:48,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:48,196 INFO L225 Difference]: With dead ends: 886 [2020-10-13 06:09:48,196 INFO L226 Difference]: Without dead ends: 498 [2020-10-13 06:09:48,197 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=155, Invalid=307, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:09:48,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2020-10-13 06:09:48,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 477. [2020-10-13 06:09:48,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2020-10-13 06:09:48,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 561 transitions. [2020-10-13 06:09:48,215 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 561 transitions. Word has length 175 [2020-10-13 06:09:48,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:48,215 INFO L479 AbstractCegarLoop]: Abstraction has 477 states and 561 transitions. [2020-10-13 06:09:48,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:09:48,216 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 561 transitions. [2020-10-13 06:09:48,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-13 06:09:48,218 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:48,218 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:09:48,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:09:48,219 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:48,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:48,219 INFO L82 PathProgramCache]: Analyzing trace with hash 797986128, now seen corresponding path program 1 times [2020-10-13 06:09:48,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:48,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1716110384] [2020-10-13 06:09:48,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:48,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:48,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:48,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:48,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:49,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:49,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-13 06:09:49,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:09:49,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1397 [2020-10-13 06:09:49,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:49,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:09:49,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-13 06:09:49,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:09:49,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:50,041 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 39 [2020-10-13 06:09:50,178 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 34 [2020-10-13 06:09:50,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:50,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:50,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:50,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:50,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:50,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:09:50,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:50,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:50,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:50,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:50,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:09:50,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:50,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:50,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:50,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:09:50,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:50,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 06:09:50,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:50,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:50,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:50,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-13 06:09:50,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:09:50,970 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:09:50,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1716110384] [2020-10-13 06:09:50,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:50,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:09:50,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914218252] [2020-10-13 06:09:50,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:09:50,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:50,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:09:50,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:09:50,973 INFO L87 Difference]: Start difference. First operand 477 states and 561 transitions. Second operand 12 states. [2020-10-13 06:09:51,729 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-13 06:09:52,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:52,887 INFO L93 Difference]: Finished difference Result 1040 states and 1272 transitions. [2020-10-13 06:09:52,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:09:52,888 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 181 [2020-10-13 06:09:52,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:52,891 INFO L225 Difference]: With dead ends: 1040 [2020-10-13 06:09:52,891 INFO L226 Difference]: Without dead ends: 569 [2020-10-13 06:09:52,893 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=128, Invalid=252, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:09:52,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2020-10-13 06:09:52,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 556. [2020-10-13 06:09:52,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-10-13 06:09:52,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 645 transitions. [2020-10-13 06:09:52,911 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 645 transitions. Word has length 181 [2020-10-13 06:09:52,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:52,911 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 645 transitions. [2020-10-13 06:09:52,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:09:52,912 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 645 transitions. [2020-10-13 06:09:52,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-13 06:09:52,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:52,915 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:09:52,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:09:52,915 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:52,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:52,916 INFO L82 PathProgramCache]: Analyzing trace with hash -773432166, now seen corresponding path program 1 times [2020-10-13 06:09:52,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:52,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102337456] [2020-10-13 06:09:52,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:52,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:53,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:53,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:53,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:54,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:54,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-10-13 06:09:54,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:09:54,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1754 [2020-10-13 06:09:54,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:54,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:54,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-13 06:09:54,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 06:09:54,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:54,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:54,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:54,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:54,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:54,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:54,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:54,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:09:54,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:54,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:54,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:54,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:54,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:09:54,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:54,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:54,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:54,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:54,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:09:54,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:54,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:09:54,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:54,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:54,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:54,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:54,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:54,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 06:09:54,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:54,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:55,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:55,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 06:09:55,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:55,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 06:09:55,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:55,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:55,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:55,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 06:09:55,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:55,213 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 06:09:55,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102337456] [2020-10-13 06:09:55,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:55,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:09:55,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961788418] [2020-10-13 06:09:55,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:09:55,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:55,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:09:55,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:09:55,216 INFO L87 Difference]: Start difference. First operand 556 states and 645 transitions. Second operand 5 states. [2020-10-13 06:09:56,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:56,309 INFO L93 Difference]: Finished difference Result 1203 states and 1454 transitions. [2020-10-13 06:09:56,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:09:56,311 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 206 [2020-10-13 06:09:56,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:56,313 INFO L225 Difference]: With dead ends: 1203 [2020-10-13 06:09:56,313 INFO L226 Difference]: Without dead ends: 464 [2020-10-13 06:09:56,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:09:56,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-10-13 06:09:56,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 457. [2020-10-13 06:09:56,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2020-10-13 06:09:56,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 533 transitions. [2020-10-13 06:09:56,331 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 533 transitions. Word has length 206 [2020-10-13 06:09:56,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:56,331 INFO L479 AbstractCegarLoop]: Abstraction has 457 states and 533 transitions. [2020-10-13 06:09:56,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:09:56,331 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 533 transitions. [2020-10-13 06:09:56,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-13 06:09:56,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:56,335 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:09:56,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:09:56,335 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:56,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:56,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1338878452, now seen corresponding path program 1 times [2020-10-13 06:09:56,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:56,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [776225392] [2020-10-13 06:09:56,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:56,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:56,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:56,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:56,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:57,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:59,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:59,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-10-13 06:09:59,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:09:59,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2859 [2020-10-13 06:09:59,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:59,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:09:59,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-13 06:09:59,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 06:09:59,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:59,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:59,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:59,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:59,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:59,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:59,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:59,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:59,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:59,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:59,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:59,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:59,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:59,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:59,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:59,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:59,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:59,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:09:59,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:59,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:09:59,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:59,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:59,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:59,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:59,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:09:59,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 06:09:59,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:59,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:59,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:59,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:09:59,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:59,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 06:09:59,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:59,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:59,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:59,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:09:59,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:09:59,864 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 88 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 06:09:59,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [776225392] [2020-10-13 06:09:59,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:59,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:09:59,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598460992] [2020-10-13 06:09:59,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:09:59,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:59,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:09:59,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:09:59,867 INFO L87 Difference]: Start difference. First operand 457 states and 533 transitions. Second operand 12 states. [2020-10-13 06:10:00,555 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2020-10-13 06:10:00,763 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2020-10-13 06:10:01,097 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2020-10-13 06:10:01,284 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2020-10-13 06:10:01,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:01,999 INFO L93 Difference]: Finished difference Result 1000 states and 1211 transitions. [2020-10-13 06:10:02,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:10:02,000 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 217 [2020-10-13 06:10:02,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:02,004 INFO L225 Difference]: With dead ends: 1000 [2020-10-13 06:10:02,004 INFO L226 Difference]: Without dead ends: 549 [2020-10-13 06:10:02,006 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:10:02,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2020-10-13 06:10:02,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 534. [2020-10-13 06:10:02,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2020-10-13 06:10:02,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 613 transitions. [2020-10-13 06:10:02,022 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 613 transitions. Word has length 217 [2020-10-13 06:10:02,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:02,023 INFO L479 AbstractCegarLoop]: Abstraction has 534 states and 613 transitions. [2020-10-13 06:10:02,023 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:10:02,023 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 613 transitions. [2020-10-13 06:10:02,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-10-13 06:10:02,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:02,027 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:02,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:10:02,028 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:02,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:02,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1050205186, now seen corresponding path program 1 times [2020-10-13 06:10:02,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:02,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [970473817] [2020-10-13 06:10:02,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:02,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:02,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:02,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:02,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:02,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-13 06:10:02,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:10:02,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-10-13 06:10:02,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:02,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:10:02,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 118 [2020-10-13 06:10:02,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-13 06:10:02,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:02,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:02,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:02,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:02,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:02,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:02,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:10:02,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:02,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:02,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:02,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:02,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:02,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:02,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:02,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:02,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:02,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:10:02,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:02,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:10:02,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:02,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:02,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:02,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:02,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:02,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 06:10:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:02,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:02,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:02,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 06:10:02,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:02,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 06:10:02,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:02,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:02,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:02,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 06:10:02,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:02,710 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-13 06:10:02,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [970473817] [2020-10-13 06:10:02,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:02,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:10:02,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524042601] [2020-10-13 06:10:02,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:10:02,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:02,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:10:02,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:10:02,712 INFO L87 Difference]: Start difference. First operand 534 states and 613 transitions. Second operand 5 states. [2020-10-13 06:10:03,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:03,712 INFO L93 Difference]: Finished difference Result 1157 states and 1378 transitions. [2020-10-13 06:10:03,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:10:03,713 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 230 [2020-10-13 06:10:03,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:03,717 INFO L225 Difference]: With dead ends: 1157 [2020-10-13 06:10:03,717 INFO L226 Difference]: Without dead ends: 465 [2020-10-13 06:10:03,719 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:10:03,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-10-13 06:10:03,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 458. [2020-10-13 06:10:03,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2020-10-13 06:10:03,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 531 transitions. [2020-10-13 06:10:03,734 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 531 transitions. Word has length 230 [2020-10-13 06:10:03,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:03,735 INFO L479 AbstractCegarLoop]: Abstraction has 458 states and 531 transitions. [2020-10-13 06:10:03,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:10:03,735 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 531 transitions. [2020-10-13 06:10:03,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-10-13 06:10:03,737 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:03,737 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:03,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:10:03,738 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:03,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:03,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1095905937, now seen corresponding path program 1 times [2020-10-13 06:10:03,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:03,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [225290608] [2020-10-13 06:10:03,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:03,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:03,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:04,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:04,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:04,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:04,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:05,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:06,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:07,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:08,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:08,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-13 06:10:08,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 06:10:08,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4816 [2020-10-13 06:10:08,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:08,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:10:08,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-13 06:10:08,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 06:10:08,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:09,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:09,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:09,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:09,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:09,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:09,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:09,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:10:09,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:09,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:09,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:09,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:09,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:09,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:09,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:09,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:09,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:09,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:10:09,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:09,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:10:09,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:09,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:09,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:09,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:09,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:09,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 06:10:09,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:09,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:09,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:09,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:10:09,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:09,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:10:09,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:09,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:09,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:09,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:09,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:09,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 06:10:09,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:09,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:09,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:09,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:10:09,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:09,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:10:09,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:09,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 06:10:09,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:09,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 06:10:09,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:09,221 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 105 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-13 06:10:09,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [225290608] [2020-10-13 06:10:09,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:09,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:10:09,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374533235] [2020-10-13 06:10:09,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:10:09,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:09,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:10:09,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:10:09,224 INFO L87 Difference]: Start difference. First operand 458 states and 531 transitions. Second operand 13 states. [2020-10-13 06:10:11,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:11,793 INFO L93 Difference]: Finished difference Result 1152 states and 1420 transitions. [2020-10-13 06:10:11,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 06:10:11,794 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 237 [2020-10-13 06:10:11,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:11,797 INFO L225 Difference]: With dead ends: 1152 [2020-10-13 06:10:11,797 INFO L226 Difference]: Without dead ends: 466 [2020-10-13 06:10:11,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=159, Invalid=303, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:10:11,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-10-13 06:10:11,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 461. [2020-10-13 06:10:11,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-10-13 06:10:11,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 542 transitions. [2020-10-13 06:10:11,813 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 542 transitions. Word has length 237 [2020-10-13 06:10:11,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:11,813 INFO L479 AbstractCegarLoop]: Abstraction has 461 states and 542 transitions. [2020-10-13 06:10:11,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:10:11,813 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 542 transitions. [2020-10-13 06:10:11,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-10-13 06:10:11,815 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:11,816 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:11,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:10:11,816 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:11,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:11,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1215510026, now seen corresponding path program 1 times [2020-10-13 06:10:11,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:11,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [947961238] [2020-10-13 06:10:11,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:11,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:11,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:11,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:11,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:12,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:14,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:14,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-10-13 06:10:14,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:10:14,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2153 [2020-10-13 06:10:14,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:14,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:10:14,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-13 06:10:14,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 06:10:14,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:14,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:14,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:14,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:14,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:14,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:14,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:14,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:10:14,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:14,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:14,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:14,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:14,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:14,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:14,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:14,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:14,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:10:14,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:14,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:10:14,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:14,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:14,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:14,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:14,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:14,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:10:14,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:14,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:14,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:14,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:10:14,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:14,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 06:10:14,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:14,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:14,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:14,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:10:14,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:14,482 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-13 06:10:14,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [947961238] [2020-10-13 06:10:14,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:14,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:10:14,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115275] [2020-10-13 06:10:14,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:10:14,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:14,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:10:14,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:10:14,484 INFO L87 Difference]: Start difference. First operand 461 states and 542 transitions. Second operand 12 states. [2020-10-13 06:10:15,289 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2020-10-13 06:10:15,477 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2020-10-13 06:10:15,691 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2020-10-13 06:10:15,865 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2020-10-13 06:10:16,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:16,382 INFO L93 Difference]: Finished difference Result 954 states and 1141 transitions. [2020-10-13 06:10:16,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 06:10:16,383 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 252 [2020-10-13 06:10:16,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:16,386 INFO L225 Difference]: With dead ends: 954 [2020-10-13 06:10:16,386 INFO L226 Difference]: Without dead ends: 499 [2020-10-13 06:10:16,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-10-13 06:10:16,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-10-13 06:10:16,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 496. [2020-10-13 06:10:16,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-10-13 06:10:16,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 584 transitions. [2020-10-13 06:10:16,403 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 584 transitions. Word has length 252 [2020-10-13 06:10:16,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:16,404 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 584 transitions. [2020-10-13 06:10:16,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:10:16,404 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 584 transitions. [2020-10-13 06:10:16,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2020-10-13 06:10:16,406 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:16,406 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:16,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:10:16,407 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:16,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:16,407 INFO L82 PathProgramCache]: Analyzing trace with hash -383220155, now seen corresponding path program 1 times [2020-10-13 06:10:16,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:16,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1362825468] [2020-10-13 06:10:16,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:16,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:16,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:16,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:16,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:17,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:19,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:19,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-13 06:10:19,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:10:19,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2821 [2020-10-13 06:10:19,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:19,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:10:19,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 156 [2020-10-13 06:10:19,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 06:10:19,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:19,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:19,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:19,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:19,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:19,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:19,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:19,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:10:19,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:19,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:19,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:19,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:19,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:19,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:19,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:19,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:19,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:10:19,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:19,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:10:19,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:19,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:19,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:19,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:19,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:19,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:10:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:19,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:19,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:19,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:10:19,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:19,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:10:19,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:19,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:19,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:19,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:19,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:10:19,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:10:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:19,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:19,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:19,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 06:10:19,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:19,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:10:19,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:19,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:19,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:19,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 06:10:19,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:19,702 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 136 proven. 3 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-13 06:10:19,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1362825468] [2020-10-13 06:10:19,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:19,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:10:19,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775621271] [2020-10-13 06:10:19,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:10:19,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:19,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:10:19,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:10:19,705 INFO L87 Difference]: Start difference. First operand 496 states and 584 transitions. Second operand 5 states. [2020-10-13 06:10:20,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:20,646 INFO L93 Difference]: Finished difference Result 1072 states and 1304 transitions. [2020-10-13 06:10:20,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:10:20,652 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 266 [2020-10-13 06:10:20,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:20,654 INFO L225 Difference]: With dead ends: 1072 [2020-10-13 06:10:20,655 INFO L226 Difference]: Without dead ends: 499 [2020-10-13 06:10:20,657 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:10:20,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-10-13 06:10:20,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 496. [2020-10-13 06:10:20,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-10-13 06:10:20,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 579 transitions. [2020-10-13 06:10:20,675 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 579 transitions. Word has length 266 [2020-10-13 06:10:20,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:20,675 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 579 transitions. [2020-10-13 06:10:20,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:10:20,675 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 579 transitions. [2020-10-13 06:10:20,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-10-13 06:10:20,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:20,678 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:20,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:10:20,679 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:20,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:20,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1524469361, now seen corresponding path program 1 times [2020-10-13 06:10:20,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:20,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409306480] [2020-10-13 06:10:20,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:20,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:20,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:20,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:20,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:21,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:21,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:21,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:22,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:22,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:24,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:24,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-13 06:10:24,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 06:10:24,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4201 [2020-10-13 06:10:24,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:24,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:10:24,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-10-13 06:10:24,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:10:24,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:25,362 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-10-13 06:10:25,544 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 44 [2020-10-13 06:10:25,716 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 44 [2020-10-13 06:10:25,862 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 39 [2020-10-13 06:10:26,013 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 35 [2020-10-13 06:10:26,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:26,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:26,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:26,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:26,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:26,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:10:26,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:26,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:26,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:26,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:26,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:26,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:26,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:26,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:26,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:26,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:10:26,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:26,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:10:26,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:26,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:26,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:26,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:26,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:26,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:10:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:26,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:26,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:26,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:10:26,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:26,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:10:26,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:26,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:26,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:26,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:26,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:26,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:10:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:26,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:26,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:26,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 06:10:26,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:26,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:10:26,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:26,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 06:10:26,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:26,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:10:26,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:26,484 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 141 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 06:10:26,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409306480] [2020-10-13 06:10:26,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:26,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:10:26,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813814402] [2020-10-13 06:10:26,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:10:26,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:26,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:10:26,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:10:26,486 INFO L87 Difference]: Start difference. First operand 496 states and 579 transitions. Second operand 13 states. [2020-10-13 06:10:27,168 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-13 06:10:27,518 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 103 [2020-10-13 06:10:27,834 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 100 [2020-10-13 06:10:28,315 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2020-10-13 06:10:28,799 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 92 [2020-10-13 06:10:29,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:29,661 INFO L93 Difference]: Finished difference Result 1366 states and 1675 transitions. [2020-10-13 06:10:29,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:10:29,662 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 273 [2020-10-13 06:10:29,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:29,666 INFO L225 Difference]: With dead ends: 1366 [2020-10-13 06:10:29,666 INFO L226 Difference]: Without dead ends: 875 [2020-10-13 06:10:29,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:10:29,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2020-10-13 06:10:29,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 867. [2020-10-13 06:10:29,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-10-13 06:10:29,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1000 transitions. [2020-10-13 06:10:29,692 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1000 transitions. Word has length 273 [2020-10-13 06:10:29,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:29,693 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 1000 transitions. [2020-10-13 06:10:29,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:10:29,693 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1000 transitions. [2020-10-13 06:10:29,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-10-13 06:10:29,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:29,697 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:29,697 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:10:29,697 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:29,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:29,698 INFO L82 PathProgramCache]: Analyzing trace with hash -276323450, now seen corresponding path program 1 times [2020-10-13 06:10:29,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:29,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1414282211] [2020-10-13 06:10:29,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:29,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:29,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:29,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:30,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:30,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 292 [2020-10-13 06:10:30,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:10:30,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 661 [2020-10-13 06:10:30,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:30,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:10:30,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-13 06:10:30,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 06:10:30,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:30,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:30,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:30,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:30,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:30,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:30,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:10:30,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:30,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:30,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:30,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:30,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:30,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:30,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:30,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:30,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:10:30,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:30,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:10:30,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:30,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:30,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:30,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:30,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:30,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:10:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:30,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:30,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:30,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:10:30,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:30,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:10:30,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:30,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:30,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:30,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:30,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:30,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:10:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:30,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:30,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:30,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 06:10:30,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:30,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 06:10:30,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:30,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:30,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:30,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 06:10:30,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:30,750 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 148 proven. 3 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-10-13 06:10:30,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1414282211] [2020-10-13 06:10:30,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:30,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:10:30,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485926892] [2020-10-13 06:10:30,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:10:30,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:30,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:10:30,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:10:30,752 INFO L87 Difference]: Start difference. First operand 867 states and 1000 transitions. Second operand 5 states. [2020-10-13 06:10:31,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:31,705 INFO L93 Difference]: Finished difference Result 1819 states and 2146 transitions. [2020-10-13 06:10:31,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:10:31,709 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 278 [2020-10-13 06:10:31,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:31,714 INFO L225 Difference]: With dead ends: 1819 [2020-10-13 06:10:31,715 INFO L226 Difference]: Without dead ends: 872 [2020-10-13 06:10:31,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:10:31,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2020-10-13 06:10:31,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 867. [2020-10-13 06:10:31,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-10-13 06:10:31,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 985 transitions. [2020-10-13 06:10:31,748 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 985 transitions. Word has length 278 [2020-10-13 06:10:31,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:31,749 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 985 transitions. [2020-10-13 06:10:31,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:10:31,749 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 985 transitions. [2020-10-13 06:10:31,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-10-13 06:10:31,752 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:31,752 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:31,752 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:10:31,752 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:31,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:31,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1025298900, now seen corresponding path program 1 times [2020-10-13 06:10:31,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:31,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [363767605] [2020-10-13 06:10:31,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:31,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:31,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:31,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:31,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:31,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:33,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:34,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:34,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 297 [2020-10-13 06:10:34,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:10:34,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2625 [2020-10-13 06:10:34,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:34,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:10:34,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-13 06:10:34,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 06:10:34,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:34,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:34,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:34,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:34,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:34,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:34,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:10:34,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:34,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:34,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:34,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:34,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:34,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:34,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:34,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:34,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:34,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:10:34,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:34,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:10:34,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:34,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:34,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:34,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:34,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:34,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:10:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:34,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:34,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:34,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:10:34,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:34,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 06:10:34,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:34,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:34,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:34,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:34,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:10:34,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:10:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:34,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:34,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:34,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 06:10:34,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:34,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 06:10:34,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:34,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:34,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:34,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 06:10:34,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:10:35,026 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 153 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2020-10-13 06:10:35,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [363767605] [2020-10-13 06:10:35,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:35,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:10:35,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512613434] [2020-10-13 06:10:35,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:10:35,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:35,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:10:35,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:10:35,031 INFO L87 Difference]: Start difference. First operand 867 states and 985 transitions. Second operand 5 states. [2020-10-13 06:10:36,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:36,016 INFO L93 Difference]: Finished difference Result 1817 states and 2108 transitions. [2020-10-13 06:10:36,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:10:36,018 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 283 [2020-10-13 06:10:36,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:36,021 INFO L225 Difference]: With dead ends: 1817 [2020-10-13 06:10:36,021 INFO L226 Difference]: Without dead ends: 872 [2020-10-13 06:10:36,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:10:36,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2020-10-13 06:10:36,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 867. [2020-10-13 06:10:36,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-10-13 06:10:36,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 972 transitions. [2020-10-13 06:10:36,045 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 972 transitions. Word has length 283 [2020-10-13 06:10:36,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:36,046 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 972 transitions. [2020-10-13 06:10:36,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:10:36,046 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 972 transitions. [2020-10-13 06:10:36,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2020-10-13 06:10:36,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:36,050 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:36,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:10:36,051 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:36,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:36,051 INFO L82 PathProgramCache]: Analyzing trace with hash -67221685, now seen corresponding path program 1 times [2020-10-13 06:10:36,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:36,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720216630] [2020-10-13 06:10:36,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:36,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:36,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:36,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:36,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:36,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:36,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:36,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:36,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:38,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:38,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:38,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:39,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:39,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:39,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:39,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 354 [2020-10-13 06:10:39,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-13 06:10:39,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3567 [2020-10-13 06:10:39,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:39,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:10:39,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-10-13 06:10:39,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:10:39,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:39,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:39,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:39,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:39,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:39,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:39,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:39,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:10:39,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:39,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:39,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:39,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:39,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:39,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:39,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:39,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:39,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:39,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:10:39,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:39,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:10:39,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:39,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:39,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:39,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:39,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:39,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:10:39,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:39,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:39,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:39,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:10:39,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:39,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:10:39,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:39,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:39,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:39,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:39,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:39,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:10:39,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:39,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:39,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:39,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 06:10:39,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:39,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:10:39,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:39,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:39,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:39,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 06:10:39,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:39,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-13 06:10:39,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:39,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:39,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:39,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 06:10:39,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:39,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-13 06:10:39,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:39,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:10:39,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:10:39,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:10:39,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:10:40,083 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 336 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-13 06:10:40,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720216630] [2020-10-13 06:10:40,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:40,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:10:40,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841450617] [2020-10-13 06:10:40,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:10:40,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:40,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:10:40,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:10:40,085 INFO L87 Difference]: Start difference. First operand 867 states and 972 transitions. Second operand 7 states. [2020-10-13 06:10:40,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:40,800 INFO L93 Difference]: Finished difference Result 1260 states and 1389 transitions. [2020-10-13 06:10:40,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 06:10:40,801 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 338 [2020-10-13 06:10:40,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:40,802 INFO L225 Difference]: With dead ends: 1260 [2020-10-13 06:10:40,802 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:10:40,806 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:10:40,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:10:40,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:10:40,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:10:40,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:10:40,807 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 338 [2020-10-13 06:10:40,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:40,807 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:10:40,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:10:40,807 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:10:40,807 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:10:40,808 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:10:40,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:10:41,559 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 149 [2020-10-13 06:10:42,319 WARN L193 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 166 [2020-10-13 06:10:44,529 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 233 DAG size of output: 165 [2020-10-13 06:10:45,042 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 75 [2020-10-13 06:10:45,961 WARN L193 SmtUtils]: Spent 915.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 103 [2020-10-13 06:10:45,965 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:10:45,966 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-10-13 06:10:45,966 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:10:45,966 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,966 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,966 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,966 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,966 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,966 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-10-13 06:10:45,967 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-10-13 06:10:45,967 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-13 06:10:45,967 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-13 06:10:45,967 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-13 06:10:45,967 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-13 06:10:45,967 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-13 06:10:45,967 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-10-13 06:10:45,967 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-10-13 06:10:45,968 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-10-13 06:10:45,968 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-10-13 06:10:45,968 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-10-13 06:10:45,968 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-10-13 06:10:45,968 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,968 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,968 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,968 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,968 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-10-13 06:10:45,968 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,968 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-10-13 06:10:45,968 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-13 06:10:45,968 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-13 06:10:45,969 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-13 06:10:45,969 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-13 06:10:45,969 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-13 06:10:45,969 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-10-13 06:10:45,969 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-10-13 06:10:45,969 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-10-13 06:10:45,969 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-10-13 06:10:45,969 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-10-13 06:10:45,969 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-10-13 06:10:45,969 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-10-13 06:10:45,969 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-10-13 06:10:45,970 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-10-13 06:10:45,970 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,970 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,970 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,970 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,970 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,970 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 526) no Hoare annotation was computed. [2020-10-13 06:10:45,970 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-10-13 06:10:45,970 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-10-13 06:10:45,971 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-10-13 06:10:45,971 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-13 06:10:45,971 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-13 06:10:45,971 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-13 06:10:45,971 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-13 06:10:45,971 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-13 06:10:45,971 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-10-13 06:10:45,971 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-10-13 06:10:45,971 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-10-13 06:10:45,972 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,972 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,972 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,972 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,972 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,972 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-10-13 06:10:45,972 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-10-13 06:10:45,972 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-10-13 06:10:45,972 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-13 06:10:45,972 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-13 06:10:45,972 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-13 06:10:45,972 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-13 06:10:45,972 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-13 06:10:45,973 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-10-13 06:10:45,973 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-10-13 06:10:45,973 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-10-13 06:10:45,973 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-10-13 06:10:45,973 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-10-13 06:10:45,973 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,973 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,973 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,973 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,973 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,974 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-10-13 06:10:45,974 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-10-13 06:10:45,974 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-13 06:10:45,974 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-13 06:10:45,974 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-13 06:10:45,974 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-13 06:10:45,974 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-10-13 06:10:45,974 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-10-13 06:10:45,974 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-10-13 06:10:45,974 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-10-13 06:10:45,974 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-10-13 06:10:45,974 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-10-13 06:10:45,974 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-10-13 06:10:45,974 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-10-13 06:10:45,975 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-10-13 06:10:45,975 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-10-13 06:10:45,975 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,975 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,975 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,975 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,975 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-10-13 06:10:45,975 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,975 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-10-13 06:10:45,975 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,975 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-10-13 06:10:45,975 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-10-13 06:10:45,975 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-10-13 06:10:45,975 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,975 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,976 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-10-13 06:10:45,976 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-13 06:10:45,976 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-13 06:10:45,976 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-13 06:10:45,976 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-13 06:10:45,976 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-13 06:10:45,976 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-10-13 06:10:45,976 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-10-13 06:10:45,976 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-10-13 06:10:45,976 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-10-13 06:10:45,976 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-10-13 06:10:45,976 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,976 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,976 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,976 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,977 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,977 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,977 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-10-13 06:10:45,977 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-10-13 06:10:45,977 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-13 06:10:45,977 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-13 06:10:45,977 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-13 06:10:45,977 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-13 06:10:45,977 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-13 06:10:45,977 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-10-13 06:10:45,977 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-10-13 06:10:45,977 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-10-13 06:10:45,977 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-10-13 06:10:45,977 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,977 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,978 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,978 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,978 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,978 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,978 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-10-13 06:10:45,978 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-10-13 06:10:45,978 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-10-13 06:10:45,978 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-10-13 06:10:45,978 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-13 06:10:45,978 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-13 06:10:45,978 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-13 06:10:45,978 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-13 06:10:45,978 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-13 06:10:45,978 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-10-13 06:10:45,978 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-10-13 06:10:45,979 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-10-13 06:10:45,979 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-10-13 06:10:45,979 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-10-13 06:10:45,979 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,979 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,979 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,979 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse4 (= |old(~a11~0)| 1)) (.cse2 (= |old(~a25~0)| 1)) (.cse28 (= |old(~a19~0)| 1)) (.cse6 (= ~a25~0 |old(~a25~0)|)) (.cse8 (= 7 ~a28~0)) (.cse5 (= ~a11~0 |old(~a11~0)|)) (.cse7 (= ~a17~0 8)) (.cse14 (= ~a25~0 1)) (.cse16 (= ~a19~0 |old(~a19~0)|)) (.cse24 (= ~a28~0 10))) (let ((.cse18 (and .cse5 .cse7 .cse14 .cse16 .cse24)) (.cse19 (and .cse5 .cse6 .cse7 .cse8 .cse16)) (.cse17 (not (= 10 |old(~a28~0)|))) (.cse25 (not (<= |old(~a25~0)| 0))) (.cse29 (not (<= |old(~a17~0)| 8))) (.cse26 (not (<= |old(~a19~0)| 0))) (.cse20 (not (= 0 |old(~a25~0)|))) (.cse21 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1))))) (.cse0 (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) (not (= |calculate_output_#in~input| 6)))) (.cse3 (not (= 8 |old(~a17~0)|))) (.cse12 (not .cse28)) (.cse10 (not (= 7 |old(~a28~0)|))) (.cse11 (not .cse2)) (.cse22 (not (= 7 |old(~a17~0)|))) (.cse23 (= 7 ~a17~0)) (.cse15 (= ~a28~0 9)) (.cse1 (not (= 0 |old(~a19~0)|))) (.cse13 (not (= 9 |old(~a28~0)|))) (.cse9 (not (= ~a21~0 1))) (.cse27 (not .cse4))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 (and (= ~a19~0 0) .cse5 .cse6 .cse7 .cse8) .cse9 .cse10) (or .cse11 .cse12 .cse3 .cse13 .cse9 (and .cse5 .cse7 .cse14 .cse15 .cse16)) (or .cse11 .cse17 (not (= |old(~a19~0)| |old(~a25~0)|)) .cse3 .cse18 .cse9) (or .cse0 .cse11 .cse17 .cse1 .cse3 .cse4 .cse18 .cse9) (or .cse12 .cse19 .cse3 .cse20 .cse9 .cse21 .cse10 (not (= |old(~a11~0)| |old(~a25~0)|))) (or .cse17 .cse22 (and .cse23 .cse5 .cse6 .cse16 .cse24) .cse25 .cse9 .cse26 .cse27) (or .cse28 .cse19 .cse3 .cse20 .cse9 .cse10 .cse27) (or .cse0 .cse17 .cse12 .cse3 .cse4 .cse9 (and .cse5 .cse6 .cse7 .cse16 .cse24)) (or (not (<= |old(~a19~0)| 1)) .cse29 (not (<= |old(~a11~0)| 1)) (not (<= 8 |old(~a17~0)|)) (not (<= 1 |old(~a19~0)|)) (and (= ~a17~0 |old(~a17~0)|) (<= 1 ~a11~0) (<= 9 ~a28~0) .cse6 (<= ~a11~0 1) (<= ~a28~0 9) .cse16) .cse25 (not (<= |old(~a28~0)| 9)) .cse9 (not (<= 1 |old(~a11~0)|)) (not (<= 9 |old(~a28~0)|))) (or .cse29 (and (not (<= 2 |old(~a19~0)|)) .cse26) .cse20 .cse9 .cse21 (and (not (<= 2 |old(~a11~0)|)) (not (<= |old(~a11~0)| 0))) (not (< 7 |old(~a17~0)|)) (and .cse5 .cse6 (= ~a28~0 8) (<= ~a17~0 8) (< 7 ~a17~0) .cse16) (not (= 8 |old(~a28~0)|))) (or .cse11 .cse12 (and (= ~a28~0 |old(~a28~0)|) .cse5 .cse7 .cse14 .cse16) .cse3 .cse4 .cse9) (or .cse0 .cse12 .cse3 .cse4 .cse13 .cse9 (and .cse5 .cse6 .cse7 .cse15 .cse16)) (or (and .cse23 .cse5 .cse8 .cse14 .cse16) .cse11 .cse22 .cse12 .cse9 .cse10 .cse27) (or .cse11 .cse22 (and .cse23 .cse5 .cse14 .cse15 .cse16) .cse1 .cse13 .cse9 .cse27)))) [2020-10-13 06:10:45,979 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,980 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,980 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,980 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-10-13 06:10:45,980 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-10-13 06:10:45,980 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-10-13 06:10:45,980 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-13 06:10:45,980 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-13 06:10:45,980 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-13 06:10:45,980 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-13 06:10:45,980 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-13 06:10:45,980 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-13 06:10:45,980 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-10-13 06:10:45,980 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-10-13 06:10:45,980 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-10-13 06:10:45,980 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-10-13 06:10:45,981 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,981 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,981 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,981 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,981 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,981 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,981 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-10-13 06:10:45,981 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-10-13 06:10:45,981 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-10-13 06:10:45,981 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-13 06:10:45,982 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-13 06:10:45,982 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-13 06:10:45,982 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-13 06:10:45,982 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-13 06:10:45,982 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-10-13 06:10:45,982 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-10-13 06:10:45,982 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-10-13 06:10:45,982 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-10-13 06:10:45,982 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-10-13 06:10:45,982 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-10-13 06:10:45,982 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-10-13 06:10:45,983 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-10-13 06:10:45,983 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,983 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,983 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,983 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,983 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:10:45,983 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-10-13 06:10:45,983 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-10-13 06:10:45,983 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-10-13 06:10:45,983 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-10-13 06:10:45,984 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-10-13 06:10:45,984 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-13 06:10:45,984 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-13 06:10:45,984 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-13 06:10:45,984 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-13 06:10:45,984 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-13 06:10:45,984 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-10-13 06:10:45,984 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-10-13 06:10:45,984 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-10-13 06:10:45,984 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-10-13 06:10:45,984 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-10-13 06:10:45,985 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-10-13 06:10:45,985 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-10-13 06:10:45,985 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-10-13 06:10:45,985 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-10-13 06:10:45,985 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:10:45,985 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a25~0 ~a11~0) (= ~a19~0 1) (= ~a25~0 0) (= ~a21~0 1) (= ~a17~0 8) (= 7 ~a28~0)) [2020-10-13 06:10:45,985 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:10:45,985 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:10:45,985 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= |old(~a19~0)| 1)) (and (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8) (= 7 ~a28~0) (= ~a19~0 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (not (= ~a21~0 1)) (not (= 7 |old(~a28~0)|)) (not (= |old(~a11~0)| |old(~a25~0)|))) [2020-10-13 06:10:45,986 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse4 (= ~a11~0 1))) (let ((.cse1 (= ~a19~0 1)) (.cse6 (= ~a28~0 9)) (.cse5 (= ~a19~0 0)) (.cse2 (= 7 ~a28~0)) (.cse8 (not .cse4)) (.cse7 (= ~a17~0 8)) (.cse3 (= ~a25~0 1)) (.cse0 (= 7 ~a17~0)) (.cse9 (= ~a28~0 10)) (.cse10 (= ~a25~0 0)) (.cse13 (<= ~a19~0 0)) (.cse11 (<= 8 ~a17~0)) (.cse12 (<= ~a17~0 8)) (.cse14 (<= ~a25~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse3 .cse6 .cse4) (not (= |old(~a19~0)| 1)) (and .cse1 .cse7 .cse6 .cse8) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (and .cse5 .cse7 .cse3 .cse8 .cse9) (and .cse10 .cse7 (not .cse1) .cse2 .cse4) (and .cse1 .cse7 .cse8 .cse9) (and (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) .cse7 .cse2 (= ~a19~0 |old(~a19~0)|)) (and .cse1 .cse7 .cse3 .cse8) (and .cse1 .cse7 .cse3 .cse6) (and .cse5 .cse11 .cse2 .cse8 .cse12 (not .cse3)) (not (= ~a21~0 1)) (and .cse7 .cse3 (= ~a25~0 ~a19~0) .cse9) (and .cse13 .cse0 .cse4 .cse14 .cse9) (not (= 7 |old(~a28~0)|)) (and (or (<= ~a11~0 0) (< 1 ~a11~0)) .cse10 .cse11 .cse12 (= ~a28~0 8) (or .cse13 (< 1 ~a19~0))) (and (<= 9 ~a28~0) .cse11 (<= ~a19~0 1) (<= ~a28~0 9) .cse12 .cse14 (<= 1 ~a19~0)) (not (= |old(~a11~0)| |old(~a25~0)|))))) [2020-10-13 06:10:45,986 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-10-13 06:10:45,986 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-10-13 06:10:45,986 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse9 (= ~a11~0 1))) (let ((.cse0 (= ~a25~0 0)) (.cse2 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 6 main_~input~0) (<= main_~input~0 6)) (and (<= main_~input~0 3) (<= 3 main_~input~0)) (and (<= main_~input~0 1) (<= 1 main_~input~0)) (and (<= main_~input~0 5) (<= 5 main_~input~0)))) (.cse1 (<= 8 ~a17~0)) (.cse7 (= 7 ~a28~0)) (.cse3 (<= ~a17~0 8)) (.cse10 (= ~a19~0 0)) (.cse8 (= ~a25~0 1)) (.cse4 (<= ~a19~0 0)) (.cse5 (= 7 ~a17~0)) (.cse12 (<= ~a25~0 0)) (.cse16 (= ~a28~0 10)) (.cse14 (or (= 5 main_~input~0) (= 6 main_~input~0) (= main_~input~0 4) (= 3 main_~input~0) (= main_~input~0 1))) (.cse6 (= ~a19~0 1)) (.cse13 (= ~a17~0 8)) (.cse11 (= ~a28~0 9)) (.cse15 (not .cse9))) (or (and (or (<= ~a11~0 0) (< 1 ~a11~0)) .cse0 .cse1 .cse2 .cse3 (= ~a28~0 8) (or .cse4 (< 1 ~a19~0))) (and .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse10 .cse5 .cse8 .cse11 .cse9) (not (= |old(~a19~0)| 1)) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (and (<= 1 ~a11~0) (<= 9 ~a28~0) (<= ~a11~0 1) .cse1 (<= ~a19~0 1) (<= ~a28~0 9) .cse3 .cse12 (<= 1 ~a19~0)) (and .cse0 .cse13 (not .cse6) .cse7 .cse9) (and (= ~a11~0 |old(~a11~0)|) .cse6 .cse0 .cse13 .cse2 .cse7) (and .cse14 .cse10 .cse1 .cse7 .cse15 .cse3 (not .cse8)) (and .cse6 .cse13 .cse8 .cse15) (and .cse6 .cse13 .cse8 .cse11) (not (= ~a21~0 1)) (and .cse13 .cse8 (= ~a25~0 ~a19~0) .cse16) (and .cse14 .cse10 .cse13 .cse8 .cse15 .cse16) (and .cse4 .cse5 .cse9 .cse12 .cse16) (not (= 7 |old(~a28~0)|)) (and .cse14 .cse6 .cse13 .cse15 .cse16) (and .cse14 .cse6 .cse13 .cse11 .cse15) (not (= |old(~a11~0)| |old(~a25~0)|))))) [2020-10-13 06:10:45,987 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-10-13 06:10:45,987 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-10-13 06:10:46,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:10:46 BoogieIcfgContainer [2020-10-13 06:10:46,012 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:10:46,014 INFO L168 Benchmark]: Toolchain (without parser) took 89457.46 ms. Allocated memory was 141.6 MB in the beginning and 906.5 MB in the end (delta: 764.9 MB). Free memory was 101.9 MB in the beginning and 621.0 MB in the end (delta: -519.1 MB). Peak memory consumption was 773.4 MB. Max. memory is 7.1 GB. [2020-10-13 06:10:46,015 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 06:10:46,015 INFO L168 Benchmark]: CACSL2BoogieTranslator took 890.87 ms. Allocated memory was 141.6 MB in the beginning and 210.2 MB in the end (delta: 68.7 MB). Free memory was 101.7 MB in the beginning and 176.6 MB in the end (delta: -74.9 MB). Peak memory consumption was 32.6 MB. Max. memory is 7.1 GB. [2020-10-13 06:10:46,016 INFO L168 Benchmark]: Boogie Preprocessor took 122.95 ms. Allocated memory is still 210.2 MB. Free memory was 176.6 MB in the beginning and 171.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2020-10-13 06:10:46,016 INFO L168 Benchmark]: RCFGBuilder took 1272.39 ms. Allocated memory was 210.2 MB in the beginning and 233.3 MB in the end (delta: 23.1 MB). Free memory was 171.3 MB in the beginning and 173.8 MB in the end (delta: -2.5 MB). Peak memory consumption was 78.7 MB. Max. memory is 7.1 GB. [2020-10-13 06:10:46,017 INFO L168 Benchmark]: TraceAbstraction took 87164.38 ms. Allocated memory was 233.3 MB in the beginning and 906.5 MB in the end (delta: 673.2 MB). Free memory was 172.5 MB in the beginning and 621.0 MB in the end (delta: -448.5 MB). Peak memory consumption was 752.2 MB. Max. memory is 7.1 GB. [2020-10-13 06:10:46,020 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 890.87 ms. Allocated memory was 141.6 MB in the beginning and 210.2 MB in the end (delta: 68.7 MB). Free memory was 101.7 MB in the beginning and 176.6 MB in the end (delta: -74.9 MB). Peak memory consumption was 32.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.95 ms. Allocated memory is still 210.2 MB. Free memory was 176.6 MB in the beginning and 171.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1272.39 ms. Allocated memory was 210.2 MB in the beginning and 233.3 MB in the end (delta: 23.1 MB). Free memory was 171.3 MB in the beginning and 173.8 MB in the end (delta: -2.5 MB). Peak memory consumption was 78.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 87164.38 ms. Allocated memory was 233.3 MB in the beginning and 906.5 MB in the end (delta: 673.2 MB). Free memory was 172.5 MB in the beginning and 621.0 MB in the end (delta: -448.5 MB). Peak memory consumption was 752.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 526]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((7 == a17 && a19 == 1) && 7 == a28) && a25 == 1) && a11 == 1) || ((((a19 == 0 && 7 == a17) && a25 == 1) && a28 == 9) && a11 == 1)) || !(\old(a19) == 1)) || (((a19 == 1 && a17 == 8) && a28 == 9) && !(a11 == 1))) || !(8 == \old(a17))) || !(0 == \old(a25))) || ((((a19 == 0 && a17 == 8) && a25 == 1) && !(a11 == 1)) && a28 == 10)) || ((((a25 == 0 && a17 == 8) && !(a19 == 1)) && 7 == a28) && a11 == 1)) || (((a19 == 1 && a17 == 8) && !(a11 == 1)) && a28 == 10)) || ((((a11 == \old(a11) && a25 == \old(a25)) && a17 == 8) && 7 == a28) && a19 == \old(a19))) || (((a19 == 1 && a17 == 8) && a25 == 1) && !(a11 == 1))) || (((a19 == 1 && a17 == 8) && a25 == 1) && a28 == 9)) || (((((a19 == 0 && 8 <= a17) && 7 == a28) && !(a11 == 1)) && a17 <= 8) && !(a25 == 1))) || !(a21 == 1)) || (((a17 == 8 && a25 == 1) && a25 == a19) && a28 == 10)) || ((((a19 <= 0 && 7 == a17) && a11 == 1) && a25 <= 0) && a28 == 10)) || !(7 == \old(a28))) || ((((((a11 <= 0 || 1 < a11) && a25 == 0) && 8 <= a17) && a17 <= 8) && a28 == 8) && (a19 <= 0 || 1 < a19))) || ((((((9 <= a28 && 8 <= a17) && a19 <= 1) && a28 <= 9) && a17 <= 8) && a25 <= 0) && 1 <= a19)) || !(\old(a11) == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 81.8s, OverallIterations: 18, TraceHistogramMax: 5, AutomataDifference: 31.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 676 SDtfs, 6450 SDslu, 995 SDs, 0 SdLazy, 15710 SolverSat, 1219 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 387 GetRequests, 157 SyntacticMatches, 8 SemanticMatches, 222 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 15.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=867occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 18 MinimizatonAttempts, 124 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 108 PreInvPairs, 145 NumberOfFragments, 1540 HoareAnnotationTreeSize, 108 FomulaSimplifications, 16515675 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 6817604 FormulaSimplificationTreeSizeReductionInter, 3.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 46.3s InterpolantComputationTime, 3813 NumberOfCodeBlocks, 3813 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3795 ConstructedInterpolants, 0 QuantifiedInterpolants, 8599017 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 1 PerfectInterpolantSequences, 2294/2328 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...