/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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/Problem10_label04.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 20:50:49,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 20:50:49,292 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 20:50:49,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 20:50:49,333 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 20:50:49,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 20:50:49,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 20:50:49,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 20:50:49,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 20:50:49,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 20:50:49,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 20:50:49,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 20:50:49,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 20:50:49,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 20:50:49,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 20:50:49,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 20:50:49,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 20:50:49,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 20:50:49,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 20:50:49,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 20:50:49,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 20:50:49,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 20:50:49,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 20:50:49,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 20:50:49,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 20:50:49,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 20:50:49,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 20:50:49,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 20:50:49,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 20:50:49,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 20:50:49,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 20:50:49,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 20:50:49,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 20:50:49,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 20:50:49,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 20:50:49,403 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 20:50:49,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 20:50:49,404 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 20:50:49,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 20:50:49,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 20:50:49,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 20:50:49,407 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 [2020-10-14 20:50:49,446 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 20:50:49,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 20:50:49,447 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 20:50:49,447 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 20:50:49,448 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 20:50:49,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 20:50:49,449 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 20:50:49,449 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 20:50:49,449 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 20:50:49,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 20:50:49,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 20:50:49,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 20:50:49,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 20:50:49,451 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 20:50:49,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 20:50:49,452 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 20:50:49,452 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 20:50:49,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 20:50:49,452 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 20:50:49,452 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 20:50:49,453 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 20:50:49,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 20:50:49,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 20:50:49,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 20:50:49,454 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 20:50:49,454 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 20:50:49,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 20:50:49,454 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 20:50:49,454 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 20:50:49,455 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 20:50:49,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 20:50:49,744 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 20:50:49,748 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 20:50:49,749 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 20:50:49,750 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 20:50:49,751 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label04.c [2020-10-14 20:50:49,809 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5fca01852/4850b539c7574ac29d5771ff98014bf0/FLAGd2bbfae0e [2020-10-14 20:50:50,349 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 20:50:50,350 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label04.c [2020-10-14 20:50:50,364 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5fca01852/4850b539c7574ac29d5771ff98014bf0/FLAGd2bbfae0e [2020-10-14 20:50:50,620 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5fca01852/4850b539c7574ac29d5771ff98014bf0 [2020-10-14 20:50:50,630 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 20:50:50,632 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 20:50:50,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 20:50:50,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 20:50:50,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 20:50:50,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:50:50" (1/1) ... [2020-10-14 20:50:50,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@283e1fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:50:50, skipping insertion in model container [2020-10-14 20:50:50,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:50:50" (1/1) ... [2020-10-14 20:50:50,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 20:50:50,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 20:50:51,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 20:50:51,095 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 20:50:51,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 20:50:51,333 INFO L208 MainTranslator]: Completed translation [2020-10-14 20:50:51,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:50:51 WrapperNode [2020-10-14 20:50:51,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 20:50:51,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 20:50:51,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 20:50:51,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 20:50:51,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:50:51" (1/1) ... [2020-10-14 20:50:51,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:50:51" (1/1) ... [2020-10-14 20:50:51,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:50:51" (1/1) ... [2020-10-14 20:50:51,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:50:51" (1/1) ... [2020-10-14 20:50:51,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:50:51" (1/1) ... [2020-10-14 20:50:51,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:50:51" (1/1) ... [2020-10-14 20:50:51,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:50:51" (1/1) ... [2020-10-14 20:50:51,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 20:50:51,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 20:50:51,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 20:50:51,432 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 20:50:51,433 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:50:51" (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 [2020-10-14 20:50:51,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 20:50:51,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 20:50:51,489 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 20:50:51,489 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 20:50:51,490 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 20:50:51,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 20:50:51,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 20:50:51,490 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 20:50:51,490 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 20:50:51,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 20:50:51,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 20:50:52,683 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 20:50:52,683 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 20:50:52,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:50:52 BoogieIcfgContainer [2020-10-14 20:50:52,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 20:50:52,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 20:50:52,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 20:50:52,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 20:50:52,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:50:50" (1/3) ... [2020-10-14 20:50:52,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63518643 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:50:52, skipping insertion in model container [2020-10-14 20:50:52,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:50:51" (2/3) ... [2020-10-14 20:50:52,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63518643 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:50:52, skipping insertion in model container [2020-10-14 20:50:52,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:50:52" (3/3) ... [2020-10-14 20:50:52,698 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label04.c [2020-10-14 20:50:52,708 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 20:50:52,717 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 20:50:52,735 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 20:50:52,764 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 20:50:52,764 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 20:50:52,764 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 20:50:52,765 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 20:50:52,765 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 20:50:52,765 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 20:50:52,766 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 20:50:52,766 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 20:50:52,791 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-10-14 20:50:52,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-14 20:50:52,803 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:50:52,805 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] [2020-10-14 20:50:52,805 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:50:52,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:50:52,812 INFO L82 PathProgramCache]: Analyzing trace with hash -460870769, now seen corresponding path program 1 times [2020-10-14 20:50:52,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:50:52,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1205735703] [2020-10-14 20:50:52,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:50:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:50:53,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:50:53,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:50:53,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 20:50:53,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:50:53,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 438 [2020-10-14 20:50:53,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:50:53,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:50:53,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 20:50:53,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:50:53,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 20:50:53,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 20:50:53,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:50:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:50:53,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:50:53,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:50:53,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:50:53,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:50:53,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 20:50:53,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:50:53,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:50:53,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:50:53,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:50:53,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:50:53,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:50:53,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:50:53,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1205735703] [2020-10-14 20:50:53,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 20:50:53,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 20:50:53,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014139035] [2020-10-14 20:50:53,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 20:50:53,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:50:53,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 20:50:53,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:50:53,711 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2020-10-14 20:50:55,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:50:55,618 INFO L93 Difference]: Finished difference Result 730 states and 1302 transitions. [2020-10-14 20:50:55,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 20:50:55,622 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 72 [2020-10-14 20:50:55,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:50:55,649 INFO L225 Difference]: With dead ends: 730 [2020-10-14 20:50:55,649 INFO L226 Difference]: Without dead ends: 447 [2020-10-14 20:50:55,657 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:50:55,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-10-14 20:50:55,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 441. [2020-10-14 20:50:55,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-10-14 20:50:55,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 648 transitions. [2020-10-14 20:50:55,739 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 648 transitions. Word has length 72 [2020-10-14 20:50:55,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:50:55,740 INFO L479 AbstractCegarLoop]: Abstraction has 441 states and 648 transitions. [2020-10-14 20:50:55,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 20:50:55,740 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 648 transitions. [2020-10-14 20:50:55,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-14 20:50:55,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:50:55,748 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, 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] [2020-10-14 20:50:55,749 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 20:50:55,749 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:50:55,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:50:55,749 INFO L82 PathProgramCache]: Analyzing trace with hash -731121555, now seen corresponding path program 1 times [2020-10-14 20:50:55,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:50:55,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1770936738] [2020-10-14 20:50:55,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:50:55,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:50:55,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:50:56,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:50:56,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:50:56,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-14 20:50:56,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:50:56,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 543 [2020-10-14 20:50:56,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:50:56,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:50:56,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:50:56,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-14 20:50:56,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 20:50:56,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:50:56,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:50:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:50:56,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:50:56,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:50:56,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:50:56,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:50:56,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 20:50:56,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:50:56,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:50:56,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:50:56,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:50:56,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:50:56,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:50:56,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:50:56,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:50:56,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:50:56,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:50:56,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 20:50:56,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:50:56,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 20:50:56,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:50:56,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:50:56,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:50:56,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:50:56,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 20:50:56,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:50:56,607 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 64 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:50:56,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1770936738] [2020-10-14 20:50:56,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:50:56,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 20:50:56,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343101715] [2020-10-14 20:50:56,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 20:50:56,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:50:56,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 20:50:56,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:50:56,611 INFO L87 Difference]: Start difference. First operand 441 states and 648 transitions. Second operand 5 states. [2020-10-14 20:50:57,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:50:57,735 INFO L93 Difference]: Finished difference Result 1027 states and 1530 transitions. [2020-10-14 20:50:57,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:50:57,735 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 151 [2020-10-14 20:50:57,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:50:57,740 INFO L225 Difference]: With dead ends: 1027 [2020-10-14 20:50:57,740 INFO L226 Difference]: Without dead ends: 447 [2020-10-14 20:50:57,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:50:57,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-10-14 20:50:57,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 441. [2020-10-14 20:50:57,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-10-14 20:50:57,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 623 transitions. [2020-10-14 20:50:57,770 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 623 transitions. Word has length 151 [2020-10-14 20:50:57,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:50:57,771 INFO L479 AbstractCegarLoop]: Abstraction has 441 states and 623 transitions. [2020-10-14 20:50:57,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 20:50:57,771 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 623 transitions. [2020-10-14 20:50:57,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-14 20:50:57,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:50:57,775 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, 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] [2020-10-14 20:50:57,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 20:50:57,775 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:50:57,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:50:57,776 INFO L82 PathProgramCache]: Analyzing trace with hash -181046758, now seen corresponding path program 1 times [2020-10-14 20:50:57,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:50:57,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354081084] [2020-10-14 20:50:57,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:50:57,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:50:57,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:50:57,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:50:59,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:50:59,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:50:59,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 20:50:59,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:50:59,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1540 [2020-10-14 20:50:59,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:50:59,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:50:59,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:50:59,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-14 20:50:59,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 20:50:59,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:50:59,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:50:59,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:50:59,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:50:59,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:50:59,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:50:59,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:50:59,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 20:50:59,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:50:59,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:50:59,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:50:59,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:50:59,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:50:59,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:50:59,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:50:59,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:50:59,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:50:59,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:50:59,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 20:50:59,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:50:59,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 20:50:59,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:50:59,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:50:59,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:50:59,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:50:59,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 20:50:59,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:50:59,548 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 64 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:50:59,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1354081084] [2020-10-14 20:50:59,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:50:59,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 20:50:59,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827437062] [2020-10-14 20:50:59,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 20:50:59,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:50:59,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 20:50:59,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:50:59,551 INFO L87 Difference]: Start difference. First operand 441 states and 623 transitions. Second operand 5 states. [2020-10-14 20:51:00,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:51:00,624 INFO L93 Difference]: Finished difference Result 1027 states and 1471 transitions. [2020-10-14 20:51:00,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:51:00,625 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 154 [2020-10-14 20:51:00,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:51:00,628 INFO L225 Difference]: With dead ends: 1027 [2020-10-14 20:51:00,628 INFO L226 Difference]: Without dead ends: 447 [2020-10-14 20:51:00,630 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:51:00,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-10-14 20:51:00,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 441. [2020-10-14 20:51:00,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-10-14 20:51:00,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 613 transitions. [2020-10-14 20:51:00,650 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 613 transitions. Word has length 154 [2020-10-14 20:51:00,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:51:00,651 INFO L479 AbstractCegarLoop]: Abstraction has 441 states and 613 transitions. [2020-10-14 20:51:00,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 20:51:00,651 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 613 transitions. [2020-10-14 20:51:00,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-14 20:51:00,655 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:51:00,655 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:51:00,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 20:51:00,656 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:51:00,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:51:00,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1754078051, now seen corresponding path program 1 times [2020-10-14 20:51:00,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:51:00,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1492963273] [2020-10-14 20:51:00,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:51:00,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:00,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:00,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:01,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:02,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:02,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 20:51:02,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:51:02,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1837 [2020-10-14 20:51:02,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:02,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:02,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 20:51:02,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:51:02,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 20:51:02,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-14 20:51:02,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:51:02,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:02,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:02,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:02,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:51:02,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:02,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 20:51:02,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:02,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:02,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:51:02,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:51:02,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:51:02,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:51:02,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:51:02,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:02,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:02,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:02,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 20:51:02,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:02,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-14 20:51:02,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:02,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:02,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:51:02,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:51:02,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-14 20:51:02,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:51:03,000 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:51:03,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1492963273] [2020-10-14 20:51:03,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 20:51:03,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 20:51:03,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429945996] [2020-10-14 20:51:03,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:51:03,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:51:03,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:51:03,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:51:03,005 INFO L87 Difference]: Start difference. First operand 441 states and 613 transitions. Second operand 7 states. [2020-10-14 20:51:04,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:51:04,118 INFO L93 Difference]: Finished difference Result 1033 states and 1434 transitions. [2020-10-14 20:51:04,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 20:51:04,119 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 191 [2020-10-14 20:51:04,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:51:04,123 INFO L225 Difference]: With dead ends: 1033 [2020-10-14 20:51:04,123 INFO L226 Difference]: Without dead ends: 598 [2020-10-14 20:51:04,124 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-14 20:51:04,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-10-14 20:51:04,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 592. [2020-10-14 20:51:04,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-10-14 20:51:04,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 791 transitions. [2020-10-14 20:51:04,148 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 791 transitions. Word has length 191 [2020-10-14 20:51:04,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:51:04,149 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 791 transitions. [2020-10-14 20:51:04,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:51:04,149 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 791 transitions. [2020-10-14 20:51:04,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-10-14 20:51:04,154 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:51:04,154 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:51:04,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 20:51:04,154 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:51:04,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:51:04,155 INFO L82 PathProgramCache]: Analyzing trace with hash 173580762, now seen corresponding path program 1 times [2020-10-14 20:51:04,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:51:04,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [122056605] [2020-10-14 20:51:04,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:51:04,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:04,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:04,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:05,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:05,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:05,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 273 [2020-10-14 20:51:05,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:51:05,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1551 [2020-10-14 20:51:05,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:05,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:05,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:51:05,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 20:51:05,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 20:51:05,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:05,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:51:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:05,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:05,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:05,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:51:05,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:05,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 20:51:05,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:05,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:05,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:51:05,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:51:05,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:51:05,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:05,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:51:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:05,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:05,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:05,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 20:51:05,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:05,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 20:51:05,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:05,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:05,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:51:05,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:51:05,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 20:51:05,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:51:05,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 20:51:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:05,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:06,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:06,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 20:51:06,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:06,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-14 20:51:06,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:06,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:06,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:51:06,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:51:06,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-14 20:51:06,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:51:06,394 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 197 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 20:51:06,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [122056605] [2020-10-14 20:51:06,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:51:06,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:51:06,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238283363] [2020-10-14 20:51:06,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:51:06,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:51:06,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:51:06,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:51:06,398 INFO L87 Difference]: Start difference. First operand 592 states and 791 transitions. Second operand 7 states. [2020-10-14 20:51:08,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:51:08,634 INFO L93 Difference]: Finished difference Result 1377 states and 1990 transitions. [2020-10-14 20:51:08,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 20:51:08,635 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 261 [2020-10-14 20:51:08,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:51:08,641 INFO L225 Difference]: With dead ends: 1377 [2020-10-14 20:51:08,642 INFO L226 Difference]: Without dead ends: 934 [2020-10-14 20:51:08,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 20:51:08,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2020-10-14 20:51:08,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 914. [2020-10-14 20:51:08,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 914 states. [2020-10-14 20:51:08,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1216 transitions. [2020-10-14 20:51:08,682 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1216 transitions. Word has length 261 [2020-10-14 20:51:08,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:51:08,682 INFO L479 AbstractCegarLoop]: Abstraction has 914 states and 1216 transitions. [2020-10-14 20:51:08,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:51:08,682 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1216 transitions. [2020-10-14 20:51:08,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-10-14 20:51:08,688 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:51:08,688 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:51:08,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 20:51:08,689 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:51:08,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:51:08,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1055640798, now seen corresponding path program 1 times [2020-10-14 20:51:08,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:51:08,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1523940707] [2020-10-14 20:51:08,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:51:08,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:08,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:08,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:08,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:09,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:13,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:13,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 20:51:13,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 20:51:13,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 20:51:13,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:13,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:13,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:51:13,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 20:51:13,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 20:51:13,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:13,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:51:13,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:13,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:13,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:13,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:51:13,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:13,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 20:51:13,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:13,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:13,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:51:13,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:51:13,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:51:13,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:51:13,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:51:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:13,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:13,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:13,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 20:51:13,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:13,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 20:51:13,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:13,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:13,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:51:13,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:51:13,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 20:51:13,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:51:13,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 20:51:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:13,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:14,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:14,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 20:51:14,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:14,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-14 20:51:14,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:14,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:14,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:51:14,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:51:14,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-14 20:51:14,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:14,338 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 201 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 20:51:14,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1523940707] [2020-10-14 20:51:14,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:51:14,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:51:14,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089266510] [2020-10-14 20:51:14,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:51:14,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:51:14,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:51:14,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:51:14,341 INFO L87 Difference]: Start difference. First operand 914 states and 1216 transitions. Second operand 7 states. [2020-10-14 20:51:15,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:51:15,611 INFO L93 Difference]: Finished difference Result 1977 states and 2751 transitions. [2020-10-14 20:51:15,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 20:51:15,612 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 265 [2020-10-14 20:51:15,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:51:15,618 INFO L225 Difference]: With dead ends: 1977 [2020-10-14 20:51:15,618 INFO L226 Difference]: Without dead ends: 1212 [2020-10-14 20:51:15,621 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 20:51:15,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2020-10-14 20:51:15,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 1045. [2020-10-14 20:51:15,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2020-10-14 20:51:15,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1291 transitions. [2020-10-14 20:51:15,676 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1291 transitions. Word has length 265 [2020-10-14 20:51:15,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:51:15,676 INFO L479 AbstractCegarLoop]: Abstraction has 1045 states and 1291 transitions. [2020-10-14 20:51:15,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:51:15,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1291 transitions. [2020-10-14 20:51:15,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-10-14 20:51:15,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:51:15,685 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:51:15,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 20:51:15,685 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:51:15,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:51:15,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1102986233, now seen corresponding path program 1 times [2020-10-14 20:51:15,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:51:15,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1838674437] [2020-10-14 20:51:15,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:51:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:15,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:15,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:16,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:17,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:17,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 318 [2020-10-14 20:51:17,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:51:17,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1632 [2020-10-14 20:51:17,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:17,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:17,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:51:17,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-14 20:51:17,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 20:51:17,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:17,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:51:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:17,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:17,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:17,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:51:17,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:17,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 20:51:17,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:17,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:17,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:51:17,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:51:17,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:51:17,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:17,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:51:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:17,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:17,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:17,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 20:51:17,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:17,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 20:51:17,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:17,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:17,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:51:17,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:51:17,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 20:51:17,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:17,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 20:51:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:17,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:17,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:17,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 20:51:17,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:17,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-14 20:51:17,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:17,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:17,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:51:17,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:51:17,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-14 20:51:17,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:17,883 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 242 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 20:51:17,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1838674437] [2020-10-14 20:51:17,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:51:17,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:51:17,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593614998] [2020-10-14 20:51:17,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:51:17,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:51:17,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:51:17,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:51:17,886 INFO L87 Difference]: Start difference. First operand 1045 states and 1291 transitions. Second operand 7 states. [2020-10-14 20:51:19,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:51:19,142 INFO L93 Difference]: Finished difference Result 2104 states and 2660 transitions. [2020-10-14 20:51:19,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 20:51:19,142 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 306 [2020-10-14 20:51:19,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:51:19,149 INFO L225 Difference]: With dead ends: 2104 [2020-10-14 20:51:19,149 INFO L226 Difference]: Without dead ends: 1208 [2020-10-14 20:51:19,152 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 20:51:19,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2020-10-14 20:51:19,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1198. [2020-10-14 20:51:19,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1198 states. [2020-10-14 20:51:19,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1198 states to 1198 states and 1446 transitions. [2020-10-14 20:51:19,185 INFO L78 Accepts]: Start accepts. Automaton has 1198 states and 1446 transitions. Word has length 306 [2020-10-14 20:51:19,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:51:19,186 INFO L479 AbstractCegarLoop]: Abstraction has 1198 states and 1446 transitions. [2020-10-14 20:51:19,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:51:19,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states and 1446 transitions. [2020-10-14 20:51:19,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2020-10-14 20:51:19,193 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:51:19,194 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 20:51:19,194 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 20:51:19,194 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:51:19,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:51:19,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1470932721, now seen corresponding path program 1 times [2020-10-14 20:51:19,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:51:19,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129585801] [2020-10-14 20:51:19,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:51:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:19,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:19,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:19,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:20,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:24,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:24,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 397 [2020-10-14 20:51:24,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 20:51:24,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 20:51:24,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:24,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:24,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:51:24,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 204 [2020-10-14 20:51:24,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 20:51:24,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:51:24,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:51:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:24,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:24,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:24,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:51:24,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:24,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 20:51:24,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:24,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:24,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:51:24,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:51:24,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:51:24,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:51:24,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:51:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:24,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:24,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:24,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 20:51:24,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:24,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 20:51:24,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:24,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:24,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:51:24,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:51:24,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:51:24,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:24,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 20:51:24,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:24,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:24,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:24,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-14 20:51:24,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:24,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 20:51:24,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:24,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:24,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:51:24,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:51:24,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 20:51:24,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:24,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-14 20:51:24,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:24,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:24,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:24,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 20:51:24,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:24,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 20:51:24,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:24,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:24,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:51:24,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:51:24,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-14 20:51:24,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:24,840 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 386 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-14 20:51:24,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129585801] [2020-10-14 20:51:24,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:51:24,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:51:24,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293274393] [2020-10-14 20:51:24,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:51:24,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:51:24,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:51:24,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:51:24,842 INFO L87 Difference]: Start difference. First operand 1198 states and 1446 transitions. Second operand 7 states. [2020-10-14 20:51:26,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:51:26,761 INFO L93 Difference]: Finished difference Result 2992 states and 3689 transitions. [2020-10-14 20:51:26,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 20:51:26,762 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 383 [2020-10-14 20:51:26,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:51:26,782 INFO L225 Difference]: With dead ends: 2992 [2020-10-14 20:51:26,783 INFO L226 Difference]: Without dead ends: 1943 [2020-10-14 20:51:26,787 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 20:51:26,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1943 states. [2020-10-14 20:51:26,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1943 to 1792. [2020-10-14 20:51:26,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1792 states. [2020-10-14 20:51:26,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1792 states to 1792 states and 2185 transitions. [2020-10-14 20:51:26,865 INFO L78 Accepts]: Start accepts. Automaton has 1792 states and 2185 transitions. Word has length 383 [2020-10-14 20:51:26,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:51:26,866 INFO L479 AbstractCegarLoop]: Abstraction has 1792 states and 2185 transitions. [2020-10-14 20:51:26,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:51:26,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1792 states and 2185 transitions. [2020-10-14 20:51:26,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2020-10-14 20:51:26,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:51:26,886 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 20:51:26,887 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 20:51:26,887 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:51:26,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:51:26,888 INFO L82 PathProgramCache]: Analyzing trace with hash 722134396, now seen corresponding path program 1 times [2020-10-14 20:51:26,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:51:26,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1889275698] [2020-10-14 20:51:26,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:51:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:27,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:27,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:27,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:28,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:29,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:29,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 398 [2020-10-14 20:51:29,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 20:51:29,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3023 [2020-10-14 20:51:29,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:29,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:29,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 20:51:29,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-14 20:51:29,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 202 [2020-10-14 20:51:29,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:30,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:51:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:30,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:30,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:30,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:51:30,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:30,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 20:51:30,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:30,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:30,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:51:30,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:51:30,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:51:30,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:30,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:51:30,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:30,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:30,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:30,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 20:51:30,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:30,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 20:51:30,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:30,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:30,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:51:30,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:51:30,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 20:51:30,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:30,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 20:51:30,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:30,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:30,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:30,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 20:51:30,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:30,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 20:51:30,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:30,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:30,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:51:30,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:51:30,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 20:51:30,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:30,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-14 20:51:30,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:30,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:30,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:30,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 20:51:30,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:30,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 20:51:30,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:30,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:30,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:51:30,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:51:30,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-14 20:51:30,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:30,473 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 376 proven. 6 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-14 20:51:30,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1889275698] [2020-10-14 20:51:30,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:51:30,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:51:30,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736238043] [2020-10-14 20:51:30,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:51:30,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:51:30,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:51:30,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:51:30,476 INFO L87 Difference]: Start difference. First operand 1792 states and 2185 transitions. Second operand 7 states. [2020-10-14 20:51:31,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:51:31,863 INFO L93 Difference]: Finished difference Result 4037 states and 5002 transitions. [2020-10-14 20:51:31,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 20:51:31,866 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 384 [2020-10-14 20:51:31,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:51:31,878 INFO L225 Difference]: With dead ends: 4037 [2020-10-14 20:51:31,878 INFO L226 Difference]: Without dead ends: 2394 [2020-10-14 20:51:31,883 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 20:51:31,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2394 states. [2020-10-14 20:51:31,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2394 to 2386. [2020-10-14 20:51:31,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2386 states. [2020-10-14 20:51:31,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2386 states to 2386 states and 2874 transitions. [2020-10-14 20:51:31,969 INFO L78 Accepts]: Start accepts. Automaton has 2386 states and 2874 transitions. Word has length 384 [2020-10-14 20:51:31,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:51:31,970 INFO L479 AbstractCegarLoop]: Abstraction has 2386 states and 2874 transitions. [2020-10-14 20:51:31,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:51:31,970 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states and 2874 transitions. [2020-10-14 20:51:31,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2020-10-14 20:51:31,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:51:31,982 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 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] [2020-10-14 20:51:31,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 20:51:31,983 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:51:31,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:51:31,983 INFO L82 PathProgramCache]: Analyzing trace with hash -669794587, now seen corresponding path program 1 times [2020-10-14 20:51:31,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:51:31,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1966838153] [2020-10-14 20:51:31,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:51:32,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:32,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:32,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:34,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:35,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:35,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 407 [2020-10-14 20:51:35,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:51:35,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3754 [2020-10-14 20:51:35,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:35,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:35,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:51:35,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-14 20:51:35,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 20:51:35,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:35,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:51:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:35,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:35,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:35,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:51:35,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:35,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 20:51:35,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:35,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:35,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:51:35,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:51:35,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:51:35,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:51:35,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:51:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:35,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:35,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:35,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 20:51:35,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:35,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 20:51:36,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:36,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:36,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:51:36,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:51:36,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 20:51:36,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:36,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 20:51:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:36,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:36,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:36,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 20:51:36,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:36,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 20:51:36,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:36,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:36,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:51:36,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:51:36,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 20:51:36,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:36,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-14 20:51:36,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:36,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:36,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:36,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 20:51:36,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:36,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 20:51:36,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:36,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:36,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:51:36,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-14 20:51:36,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:51:36,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:36,527 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 283 proven. 86 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-14 20:51:36,528 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1966838153] [2020-10-14 20:51:36,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:51:36,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 20:51:36,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191825974] [2020-10-14 20:51:36,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 20:51:36,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:51:36,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 20:51:36,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 20:51:36,531 INFO L87 Difference]: Start difference. First operand 2386 states and 2874 transitions. Second operand 8 states. [2020-10-14 20:51:37,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:51:37,890 INFO L93 Difference]: Finished difference Result 4627 states and 5596 transitions. [2020-10-14 20:51:37,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 20:51:37,891 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 393 [2020-10-14 20:51:37,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:51:37,902 INFO L225 Difference]: With dead ends: 4627 [2020-10-14 20:51:37,902 INFO L226 Difference]: Without dead ends: 2390 [2020-10-14 20:51:37,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 20:51:37,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2020-10-14 20:51:37,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 2386. [2020-10-14 20:51:37,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2386 states. [2020-10-14 20:51:37,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2386 states to 2386 states and 2850 transitions. [2020-10-14 20:51:37,962 INFO L78 Accepts]: Start accepts. Automaton has 2386 states and 2850 transitions. Word has length 393 [2020-10-14 20:51:37,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:51:37,963 INFO L479 AbstractCegarLoop]: Abstraction has 2386 states and 2850 transitions. [2020-10-14 20:51:37,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 20:51:37,963 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states and 2850 transitions. [2020-10-14 20:51:37,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2020-10-14 20:51:37,969 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:51:37,970 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 20:51:37,970 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 20:51:37,970 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:51:37,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:51:37,971 INFO L82 PathProgramCache]: Analyzing trace with hash 470975317, now seen corresponding path program 1 times [2020-10-14 20:51:37,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:51:37,971 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1022761296] [2020-10-14 20:51:37,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:51:38,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:38,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:38,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:39,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:39,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 411 [2020-10-14 20:51:39,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:51:39,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 980 [2020-10-14 20:51:39,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:39,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:39,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:51:39,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 339 [2020-10-14 20:51:39,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 20:51:39,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:39,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:51:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:39,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:39,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:39,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:51:39,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:39,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 20:51:39,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:39,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:39,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:51:39,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:51:39,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:51:39,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:51:39,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:51:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:39,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:39,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:39,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 20:51:39,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:39,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 20:51:39,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:39,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:39,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:51:39,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:51:39,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:51:39,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:51:39,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 20:51:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:39,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:39,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:39,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 20:51:39,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:39,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 20:51:39,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:39,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:39,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:51:39,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:51:39,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:51:39,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:39,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 20:51:39,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:39,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:39,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:39,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 20:51:39,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:39,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 20:51:39,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:39,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:39,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:51:39,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:51:39,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-14 20:51:39,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:39,473 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 198 proven. 3 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-10-14 20:51:39,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1022761296] [2020-10-14 20:51:39,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:51:39,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 20:51:39,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630576097] [2020-10-14 20:51:39,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 20:51:39,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:51:39,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 20:51:39,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:51:39,476 INFO L87 Difference]: Start difference. First operand 2386 states and 2850 transitions. Second operand 5 states. [2020-10-14 20:51:40,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:51:40,660 INFO L93 Difference]: Finished difference Result 5060 states and 6190 transitions. [2020-10-14 20:51:40,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:51:40,661 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 397 [2020-10-14 20:51:40,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:51:40,673 INFO L225 Difference]: With dead ends: 5060 [2020-10-14 20:51:40,673 INFO L226 Difference]: Without dead ends: 2823 [2020-10-14 20:51:40,679 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:51:40,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2823 states. [2020-10-14 20:51:40,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2823 to 2676. [2020-10-14 20:51:40,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2676 states. [2020-10-14 20:51:40,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2676 states to 2676 states and 3179 transitions. [2020-10-14 20:51:40,743 INFO L78 Accepts]: Start accepts. Automaton has 2676 states and 3179 transitions. Word has length 397 [2020-10-14 20:51:40,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:51:40,744 INFO L479 AbstractCegarLoop]: Abstraction has 2676 states and 3179 transitions. [2020-10-14 20:51:40,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 20:51:40,744 INFO L276 IsEmpty]: Start isEmpty. Operand 2676 states and 3179 transitions. [2020-10-14 20:51:40,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2020-10-14 20:51:40,751 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:51:40,751 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 20:51:40,752 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 20:51:40,752 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:51:40,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:51:40,752 INFO L82 PathProgramCache]: Analyzing trace with hash 651753266, now seen corresponding path program 1 times [2020-10-14 20:51:40,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:51:40,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1993305325] [2020-10-14 20:51:40,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:51:40,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:40,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:41,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:42,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:42,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 426 [2020-10-14 20:51:42,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:51:42,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1305 [2020-10-14 20:51:42,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:42,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:42,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:51:42,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-14 20:51:42,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 20:51:42,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:42,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:51:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:42,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:42,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:42,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:51:42,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:42,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 20:51:42,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:42,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:42,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:51:42,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:51:42,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:51:42,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:42,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:51:42,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:42,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:42,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:42,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-14 20:51:42,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:42,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 20:51:42,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:42,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:42,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:51:42,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:51:42,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:51:42,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:42,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-14 20:51:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:42,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:42,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:42,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 20:51:42,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:42,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 20:51:42,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:42,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:42,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:51:42,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:51:42,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:51:42,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:42,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-14 20:51:42,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:51:42,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:51:42,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:51:42,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 20:51:42,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:51:42,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 20:51:42,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:51:42,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:51:42,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:51:42,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:51:42,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 20:51:42,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:51:42,604 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 198 proven. 3 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-10-14 20:51:42,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1993305325] [2020-10-14 20:51:42,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:51:42,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 20:51:42,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659822301] [2020-10-14 20:51:42,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 20:51:42,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:51:42,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 20:51:42,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:51:42,606 INFO L87 Difference]: Start difference. First operand 2676 states and 3179 transitions. Second operand 5 states. [2020-10-14 20:51:43,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:51:43,630 INFO L93 Difference]: Finished difference Result 5205 states and 6206 transitions. [2020-10-14 20:51:43,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:51:43,631 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 412 [2020-10-14 20:51:43,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:51:43,631 INFO L225 Difference]: With dead ends: 5205 [2020-10-14 20:51:43,631 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 20:51:43,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:51:43,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 20:51:43,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 20:51:43,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 20:51:43,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 20:51:43,642 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 412 [2020-10-14 20:51:43,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:51:43,642 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 20:51:43,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 20:51:43,642 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 20:51:43,642 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 20:51:43,643 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 20:51:43,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 20:51:44,279 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 37 [2020-10-14 20:51:44,459 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-14 20:51:44,459 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-14 20:51:44,460 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 20:51:44,460 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-10-14 20:51:44,460 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,460 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,460 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,460 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,460 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,460 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,460 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-10-14 20:51:44,461 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-10-14 20:51:44,461 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-10-14 20:51:44,461 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-10-14 20:51:44,461 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-10-14 20:51:44,461 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-10-14 20:51:44,461 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-10-14 20:51:44,461 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-10-14 20:51:44,461 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-10-14 20:51:44,461 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-10-14 20:51:44,462 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-10-14 20:51:44,462 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,462 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,462 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,462 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,462 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,462 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-10-14 20:51:44,462 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-10-14 20:51:44,463 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-10-14 20:51:44,463 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-10-14 20:51:44,463 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-10-14 20:51:44,463 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-10-14 20:51:44,463 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-10-14 20:51:44,463 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-10-14 20:51:44,463 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-10-14 20:51:44,463 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-10-14 20:51:44,463 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-10-14 20:51:44,464 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-10-14 20:51:44,464 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-10-14 20:51:44,464 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 202) no Hoare annotation was computed. [2020-10-14 20:51:44,464 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-10-14 20:51:44,464 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,464 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,464 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,464 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,464 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,465 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-10-14 20:51:44,465 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-10-14 20:51:44,465 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-10-14 20:51:44,465 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-10-14 20:51:44,465 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-10-14 20:51:44,465 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-10-14 20:51:44,465 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-10-14 20:51:44,465 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-10-14 20:51:44,465 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-10-14 20:51:44,466 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-10-14 20:51:44,466 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,466 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,466 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,466 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,466 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,466 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-10-14 20:51:44,466 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-10-14 20:51:44,467 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-10-14 20:51:44,467 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-10-14 20:51:44,467 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-10-14 20:51:44,467 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-10-14 20:51:44,467 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-10-14 20:51:44,467 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-10-14 20:51:44,467 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-10-14 20:51:44,467 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-10-14 20:51:44,467 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-10-14 20:51:44,468 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-10-14 20:51:44,468 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-10-14 20:51:44,468 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,468 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,468 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,468 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,468 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,468 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-10-14 20:51:44,468 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-10-14 20:51:44,469 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-10-14 20:51:44,469 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-10-14 20:51:44,469 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-10-14 20:51:44,469 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-10-14 20:51:44,469 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-10-14 20:51:44,469 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-10-14 20:51:44,469 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-10-14 20:51:44,469 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,469 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,470 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,470 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,470 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,470 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,470 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,470 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-10-14 20:51:44,470 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-10-14 20:51:44,470 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-10-14 20:51:44,470 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-10-14 20:51:44,471 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-10-14 20:51:44,471 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-10-14 20:51:44,471 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-10-14 20:51:44,471 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-10-14 20:51:44,471 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-10-14 20:51:44,471 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-10-14 20:51:44,471 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-10-14 20:51:44,471 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-10-14 20:51:44,471 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-10-14 20:51:44,471 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,472 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,472 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,472 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,472 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-10-14 20:51:44,472 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,472 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,472 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-10-14 20:51:44,472 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-10-14 20:51:44,473 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-10-14 20:51:44,473 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-10-14 20:51:44,473 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-10-14 20:51:44,473 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-10-14 20:51:44,473 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-10-14 20:51:44,473 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-10-14 20:51:44,473 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-10-14 20:51:44,473 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-10-14 20:51:44,474 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-10-14 20:51:44,474 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-10-14 20:51:44,474 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-10-14 20:51:44,474 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,474 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,474 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,474 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,474 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,474 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,475 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-10-14 20:51:44,475 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-10-14 20:51:44,475 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-10-14 20:51:44,475 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-10-14 20:51:44,475 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-10-14 20:51:44,475 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-10-14 20:51:44,475 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-10-14 20:51:44,475 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-10-14 20:51:44,475 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-10-14 20:51:44,476 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-10-14 20:51:44,476 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-10-14 20:51:44,476 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)))) (and (or .cse0 (not (= 7 |old(~a19~0)|))) (or .cse0 (not (= 8 |old(~a19~0)|))) (or (not (<= 9 |old(~a19~0)|)) .cse0 (not (<= |old(~a10~0)| 1))) (or .cse0 (not (= 9 |old(~a19~0)|))) (or .cse0 (not (<= 3 |old(~a10~0)|))) (or .cse0 (not (= 0 |old(~a10~0)|))))) [2020-10-14 20:51:44,476 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-10-14 20:51:44,476 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-10-14 20:51:44,476 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-10-14 20:51:44,476 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,476 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,476 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,477 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,477 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,477 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,477 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-10-14 20:51:44,477 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-10-14 20:51:44,477 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-10-14 20:51:44,477 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-10-14 20:51:44,477 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-10-14 20:51:44,477 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-10-14 20:51:44,477 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-10-14 20:51:44,478 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-10-14 20:51:44,478 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-10-14 20:51:44,478 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-10-14 20:51:44,478 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-10-14 20:51:44,478 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-10-14 20:51:44,478 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-10-14 20:51:44,478 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,478 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,478 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,478 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,478 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,479 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,479 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-10-14 20:51:44,479 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-10-14 20:51:44,479 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-10-14 20:51:44,479 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-10-14 20:51:44,479 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-10-14 20:51:44,479 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-10-14 20:51:44,479 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-10-14 20:51:44,479 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-10-14 20:51:44,479 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-10-14 20:51:44,479 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-10-14 20:51:44,480 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-10-14 20:51:44,480 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-10-14 20:51:44,480 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,480 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,480 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,480 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,480 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,480 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:51:44,480 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-10-14 20:51:44,480 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-10-14 20:51:44,480 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-10-14 20:51:44,481 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-10-14 20:51:44,481 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-10-14 20:51:44,481 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-10-14 20:51:44,481 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-10-14 20:51:44,481 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-10-14 20:51:44,481 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-10-14 20:51:44,481 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-10-14 20:51:44,481 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-10-14 20:51:44,481 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-10-14 20:51:44,482 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 20:51:44,482 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (= 23 ~a1~0)) [2020-10-14 20:51:44,482 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 20:51:44,482 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 20:51:44,482 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (and (= 23 ~a1~0) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) [2020-10-14 20:51:44,482 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-10-14 20:51:44,483 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (or (= ~a19~0 8) (<= 3 ~a10~0) (= 7 ~a19~0) (and (<= 9 ~a19~0) (<= ~a10~0 1)) (not (= 9 |old(~a19~0)|)) (= ~a10~0 0) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|))) [2020-10-14 20:51:44,483 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-10-14 20:51:44,483 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-10-14 20:51:44,483 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (or (= ~a19~0 8) (<= 3 ~a10~0) (= 7 ~a19~0) (and (<= 9 ~a19~0) (<= ~a10~0 1)) (not (= 9 |old(~a19~0)|)) (= ~a10~0 0) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|))) [2020-10-14 20:51:44,483 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-10-14 20:51:44,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 08:51:44 BoogieIcfgContainer [2020-10-14 20:51:44,505 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 20:51:44,511 INFO L168 Benchmark]: Toolchain (without parser) took 53875.15 ms. Allocated memory was 148.9 MB in the beginning and 988.3 MB in the end (delta: 839.4 MB). Free memory was 104.0 MB in the beginning and 863.7 MB in the end (delta: -759.7 MB). Peak memory consumption was 805.7 MB. Max. memory is 7.1 GB. [2020-10-14 20:51:44,513 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 148.9 MB. Free memory was 123.5 MB in the beginning and 123.0 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-10-14 20:51:44,514 INFO L168 Benchmark]: CACSL2BoogieTranslator took 702.29 ms. Allocated memory was 148.9 MB in the beginning and 206.6 MB in the end (delta: 57.7 MB). Free memory was 103.6 MB in the beginning and 173.1 MB in the end (delta: -69.5 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. [2020-10-14 20:51:44,514 INFO L168 Benchmark]: Boogie Preprocessor took 96.01 ms. Allocated memory is still 206.6 MB. Free memory was 173.1 MB in the beginning and 168.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-10-14 20:51:44,516 INFO L168 Benchmark]: RCFGBuilder took 1257.70 ms. Allocated memory was 206.6 MB in the beginning and 234.4 MB in the end (delta: 27.8 MB). Free memory was 168.1 MB in the beginning and 175.3 MB in the end (delta: -7.2 MB). Peak memory consumption was 78.4 MB. Max. memory is 7.1 GB. [2020-10-14 20:51:44,524 INFO L168 Benchmark]: TraceAbstraction took 51814.23 ms. Allocated memory was 234.4 MB in the beginning and 988.3 MB in the end (delta: 753.9 MB). Free memory was 173.7 MB in the beginning and 863.7 MB in the end (delta: -690.0 MB). Peak memory consumption was 789.9 MB. Max. memory is 7.1 GB. [2020-10-14 20:51:44,530 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 148.9 MB. Free memory was 123.5 MB in the beginning and 123.0 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 702.29 ms. Allocated memory was 148.9 MB in the beginning and 206.6 MB in the end (delta: 57.7 MB). Free memory was 103.6 MB in the beginning and 173.1 MB in the end (delta: -69.5 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.01 ms. Allocated memory is still 206.6 MB. Free memory was 173.1 MB in the beginning and 168.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1257.70 ms. Allocated memory was 206.6 MB in the beginning and 234.4 MB in the end (delta: 27.8 MB). Free memory was 168.1 MB in the beginning and 175.3 MB in the end (delta: -7.2 MB). Peak memory consumption was 78.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 51814.23 ms. Allocated memory was 234.4 MB in the beginning and 988.3 MB in the end (delta: 753.9 MB). Free memory was 173.7 MB in the beginning and 863.7 MB in the end (delta: -690.0 MB). Peak memory consumption was 789.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 202]: 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: 582]: Loop Invariant Derived loop invariant: (((((((a19 == 8 || 3 <= a10) || 7 == a19) || (9 <= a19 && a10 <= 1)) || !(9 == \old(a19))) || a10 == 0) || a19 == 9) || !(0 == \old(a10))) || !(23 == \old(a1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 50.8s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 17.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 360 SDtfs, 4576 SDslu, 422 SDs, 0 SdLazy, 10877 SolverSat, 1405 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 186 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2676occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 531 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 117 PreInvPairs, 157 NumberOfFragments, 230 HoareAnnotationTreeSize, 117 FomulaSimplifications, 18448 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1388 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 31.1s InterpolantComputationTime, 3369 NumberOfCodeBlocks, 3369 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 3357 ConstructedInterpolants, 0 QuantifiedInterpolants, 2514954 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 3106/3214 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...