/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 13:05:52,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 13:05:52,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 13:05:52,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 13:05:52,350 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 13:05:52,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 13:05:52,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 13:05:52,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 13:05:52,356 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 13:05:52,357 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 13:05:52,358 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 13:05:52,359 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 13:05:52,359 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 13:05:52,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 13:05:52,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 13:05:52,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 13:05:52,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 13:05:52,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 13:05:52,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 13:05:52,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 13:05:52,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 13:05:52,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 13:05:52,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 13:05:52,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 13:05:52,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 13:05:52,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 13:05:52,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 13:05:52,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 13:05:52,376 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 13:05:52,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 13:05:52,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 13:05:52,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 13:05:52,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 13:05:52,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 13:05:52,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 13:05:52,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 13:05:52,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 13:05:52,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 13:05:52,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 13:05:52,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 13:05:52,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 13:05:52,385 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 13:05:52,407 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 13:05:52,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 13:05:52,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 13:05:52,409 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 13:05:52,409 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 13:05:52,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 13:05:52,410 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 13:05:52,410 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 13:05:52,410 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 13:05:52,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 13:05:52,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 13:05:52,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 13:05:52,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 13:05:52,411 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 13:05:52,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 13:05:52,412 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 13:05:52,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 13:05:52,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 13:05:52,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 13:05:52,412 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 13:05:52,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 13:05:52,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 13:05:52,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 13:05:52,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 13:05:52,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 13:05:52,414 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 13:05:52,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 13:05:52,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 13:05:52,414 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 13:05:52,414 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 13:05:52,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 13:05:52,762 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 13:05:52,765 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 13:05:52,767 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 13:05:52,767 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 13:05:52,768 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label38.c [2020-10-12 13:05:52,842 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b25e1f6d0/fa14d493b4394affa8ed253336652881/FLAGf6b959ab4 [2020-10-12 13:05:53,442 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 13:05:53,443 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label38.c [2020-10-12 13:05:53,459 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b25e1f6d0/fa14d493b4394affa8ed253336652881/FLAGf6b959ab4 [2020-10-12 13:05:53,682 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b25e1f6d0/fa14d493b4394affa8ed253336652881 [2020-10-12 13:05:53,693 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 13:05:53,694 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 13:05:53,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 13:05:53,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 13:05:53,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 13:05:53,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 01:05:53" (1/1) ... [2020-10-12 13:05:53,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41395291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:05:53, skipping insertion in model container [2020-10-12 13:05:53,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 01:05:53" (1/1) ... [2020-10-12 13:05:53,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 13:05:53,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 13:05:54,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 13:05:54,327 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 13:05:54,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 13:05:54,479 INFO L208 MainTranslator]: Completed translation [2020-10-12 13:05:54,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:05:54 WrapperNode [2020-10-12 13:05:54,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 13:05:54,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 13:05:54,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 13:05:54,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 13:05:54,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:05:54" (1/1) ... [2020-10-12 13:05:54,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:05:54" (1/1) ... [2020-10-12 13:05:54,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:05:54" (1/1) ... [2020-10-12 13:05:54,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:05:54" (1/1) ... [2020-10-12 13:05:54,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:05:54" (1/1) ... [2020-10-12 13:05:54,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:05:54" (1/1) ... [2020-10-12 13:05:54,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:05:54" (1/1) ... [2020-10-12 13:05:54,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 13:05:54,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 13:05:54,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 13:05:54,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 13:05:54,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:05:54" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 13:05:54,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 13:05:54,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 13:05:54,695 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 13:05:54,695 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 13:05:54,695 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 13:05:54,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 13:05:54,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 13:05:54,697 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 13:05:54,697 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 13:05:54,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 13:05:54,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 13:05:56,010 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 13:05:56,011 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 13:05:56,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 01:05:56 BoogieIcfgContainer [2020-10-12 13:05:56,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 13:05:56,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 13:05:56,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 13:05:56,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 13:05:56,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 01:05:53" (1/3) ... [2020-10-12 13:05:56,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212cb0e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 01:05:56, skipping insertion in model container [2020-10-12 13:05:56,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:05:54" (2/3) ... [2020-10-12 13:05:56,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212cb0e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 01:05:56, skipping insertion in model container [2020-10-12 13:05:56,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 01:05:56" (3/3) ... [2020-10-12 13:05:56,031 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label38.c [2020-10-12 13:05:56,042 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 13:05:56,055 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 13:05:56,069 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 13:05:56,103 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 13:05:56,104 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 13:05:56,106 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 13:05:56,106 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 13:05:56,107 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 13:05:56,107 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 13:05:56,107 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 13:05:56,107 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 13:05:56,136 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-10-12 13:05:56,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-12 13:05:56,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:05:56,144 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] [2020-10-12 13:05:56,144 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:05:56,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:05:56,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1813043417, now seen corresponding path program 1 times [2020-10-12 13:05:56,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:05:56,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1600226458] [2020-10-12 13:05:56,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:05:56,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:56,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:56,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:56,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-12 13:05:56,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:05:56,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 427 [2020-10-12 13:05:56,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:56,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:05:56,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:05:56,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 13:05:56,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-12 13:05:56,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:05:56,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:56,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:56,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:56,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:05:56,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:05:56,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 13:05:56,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:56,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:05:56,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:05:56,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:05:56,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:05:56,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:05:56,945 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1600226458] [2020-10-12 13:05:56,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:05:56,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 13:05:56,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265043110] [2020-10-12 13:05:56,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 13:05:56,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:05:56,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 13:05:56,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 13:05:56,974 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 4 states. [2020-10-12 13:05:58,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:05:58,454 INFO L93 Difference]: Finished difference Result 581 states and 1007 transitions. [2020-10-12 13:05:58,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:05:58,456 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-10-12 13:05:58,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:05:58,473 INFO L225 Difference]: With dead ends: 581 [2020-10-12 13:05:58,473 INFO L226 Difference]: Without dead ends: 302 [2020-10-12 13:05:58,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:05:58,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-10-12 13:05:58,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 296. [2020-10-12 13:05:58,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-10-12 13:05:58,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 423 transitions. [2020-10-12 13:05:58,565 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 423 transitions. Word has length 38 [2020-10-12 13:05:58,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:05:58,566 INFO L479 AbstractCegarLoop]: Abstraction has 296 states and 423 transitions. [2020-10-12 13:05:58,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 13:05:58,566 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 423 transitions. [2020-10-12 13:05:58,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-12 13:05:58,572 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:05:58,572 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:05:58,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 13:05:58,573 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:05:58,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:05:58,573 INFO L82 PathProgramCache]: Analyzing trace with hash 296989766, now seen corresponding path program 1 times [2020-10-12 13:05:58,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:05:58,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1878034841] [2020-10-12 13:05:58,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:05:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:58,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:58,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:58,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:59,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:59,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-12 13:05:59,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:05:59,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 955 [2020-10-12 13:05:59,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:59,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 13:05:59,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:05:59,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-12 13:05:59,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:05:59,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:05:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:59,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:59,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:59,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:05:59,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:05:59,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 13:05:59,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:59,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:05:59,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:05:59,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:05:59,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 13:05:59,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:05:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:05:59,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:59,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:05:59,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:05:59,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 13:05:59,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:05:59,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-12 13:05:59,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:05:59,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:05:59,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:05:59,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 13:05:59,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:05:59,976 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 13:05:59,977 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1878034841] [2020-10-12 13:05:59,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:05:59,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 13:05:59,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980190231] [2020-10-12 13:05:59,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 13:05:59,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:05:59,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 13:05:59,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:05:59,980 INFO L87 Difference]: Start difference. First operand 296 states and 423 transitions. Second operand 6 states. [2020-10-12 13:06:01,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:06:01,192 INFO L93 Difference]: Finished difference Result 898 states and 1319 transitions. [2020-10-12 13:06:01,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 13:06:01,193 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 110 [2020-10-12 13:06:01,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:06:01,200 INFO L225 Difference]: With dead ends: 898 [2020-10-12 13:06:01,200 INFO L226 Difference]: Without dead ends: 608 [2020-10-12 13:06:01,202 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:06:01,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-10-12 13:06:01,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 594. [2020-10-12 13:06:01,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 594 states. [2020-10-12 13:06:01,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 764 transitions. [2020-10-12 13:06:01,264 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 764 transitions. Word has length 110 [2020-10-12 13:06:01,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:06:01,265 INFO L479 AbstractCegarLoop]: Abstraction has 594 states and 764 transitions. [2020-10-12 13:06:01,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 13:06:01,265 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 764 transitions. [2020-10-12 13:06:01,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-12 13:06:01,293 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:06:01,293 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:06:01,293 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 13:06:01,293 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:06:01,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:06:01,294 INFO L82 PathProgramCache]: Analyzing trace with hash -444185243, now seen corresponding path program 1 times [2020-10-12 13:06:01,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:06:01,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [147513107] [2020-10-12 13:06:01,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:06:01,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:01,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:01,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:01,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:01,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-12 13:06:01,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:06:01,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 461 [2020-10-12 13:06:01,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:01,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:06:01,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-12 13:06:01,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 13:06:01,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:06:01,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:06:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:01,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:01,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:01,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:06:01,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:06:01,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:06:01,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:01,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:06:01,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:06:01,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:06:01,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:06:01,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:06:01,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:01,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:02,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:02,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 13:06:02,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:06:02,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-12 13:06:02,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:02,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:06:02,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:06:02,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 13:06:02,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:06:02,087 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:06:02,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [147513107] [2020-10-12 13:06:02,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:06:02,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 13:06:02,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544250018] [2020-10-12 13:06:02,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 13:06:02,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:06:02,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 13:06:02,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:06:02,090 INFO L87 Difference]: Start difference. First operand 594 states and 764 transitions. Second operand 5 states. [2020-10-12 13:06:02,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:06:02,963 INFO L93 Difference]: Finished difference Result 1211 states and 1568 transitions. [2020-10-12 13:06:02,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:06:02,964 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 117 [2020-10-12 13:06:02,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:06:02,969 INFO L225 Difference]: With dead ends: 1211 [2020-10-12 13:06:02,969 INFO L226 Difference]: Without dead ends: 600 [2020-10-12 13:06:02,971 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 [2020-10-12 13:06:02,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2020-10-12 13:06:02,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 594. [2020-10-12 13:06:02,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 594 states. [2020-10-12 13:06:02,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 759 transitions. [2020-10-12 13:06:02,993 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 759 transitions. Word has length 117 [2020-10-12 13:06:02,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:06:02,994 INFO L479 AbstractCegarLoop]: Abstraction has 594 states and 759 transitions. [2020-10-12 13:06:02,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 13:06:02,994 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 759 transitions. [2020-10-12 13:06:02,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-10-12 13:06:02,999 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:06:02,999 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:06:03,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 13:06:03,000 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:06:03,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:06:03,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1633559433, now seen corresponding path program 1 times [2020-10-12 13:06:03,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:06:03,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2043682566] [2020-10-12 13:06:03,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:06:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:03,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:03,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:03,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:04,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:04,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-12 13:06:04,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:06:04,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 978 [2020-10-12 13:06:04,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:04,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:06:04,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-12 13:06:04,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 13:06:04,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:06:04,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:06:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:04,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:04,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:04,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:06:04,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:06:04,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:06:04,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:04,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:06:04,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:06:04,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:06:04,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:06:04,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:06:04,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:04,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:04,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:04,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 13:06:04,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:06:04,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-12 13:06:04,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:04,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:06:04,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:06:04,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 13:06:04,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:06:04,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-12 13:06:04,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:04,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:04,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:04,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:04,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 13:06:04,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:06:04,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-12 13:06:04,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:04,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:06:04,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:06:04,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 13:06:04,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:06:04,631 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 96 proven. 35 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 13:06:04,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2043682566] [2020-10-12 13:06:04,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:06:04,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:06:04,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399609951] [2020-10-12 13:06:04,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:06:04,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:06:04,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:06:04,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:06:04,639 INFO L87 Difference]: Start difference. First operand 594 states and 759 transitions. Second operand 7 states. [2020-10-12 13:06:06,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:06:06,333 INFO L93 Difference]: Finished difference Result 1788 states and 2479 transitions. [2020-10-12 13:06:06,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 13:06:06,334 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 180 [2020-10-12 13:06:06,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:06:06,343 INFO L225 Difference]: With dead ends: 1788 [2020-10-12 13:06:06,343 INFO L226 Difference]: Without dead ends: 1200 [2020-10-12 13:06:06,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-12 13:06:06,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2020-10-12 13:06:06,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 1180. [2020-10-12 13:06:06,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1180 states. [2020-10-12 13:06:06,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1593 transitions. [2020-10-12 13:06:06,396 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1593 transitions. Word has length 180 [2020-10-12 13:06:06,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:06:06,396 INFO L479 AbstractCegarLoop]: Abstraction has 1180 states and 1593 transitions. [2020-10-12 13:06:06,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:06:06,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1593 transitions. [2020-10-12 13:06:06,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-12 13:06:06,402 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:06:06,402 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 13:06:06,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 13:06:06,402 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:06:06,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:06:06,403 INFO L82 PathProgramCache]: Analyzing trace with hash -722844368, now seen corresponding path program 1 times [2020-10-12 13:06:06,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:06:06,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1501278067] [2020-10-12 13:06:06,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:06:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:06,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:06,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:07,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:07,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:09,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:10,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:10,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-10-12 13:06:10,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:06:10,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3784 [2020-10-12 13:06:10,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:10,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:06:10,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:06:10,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-12 13:06:10,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:06:10,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:06:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:10,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:10,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:10,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:06:10,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:06:10,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:06:10,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:10,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:06:10,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:06:10,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:06:10,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:06:10,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:06:10,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:10,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:10,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:10,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-12 13:06:10,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:06:10,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-12 13:06:10,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:10,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:06:10,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:06:10,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-12 13:06:10,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:06:10,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 13:06:10,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:10,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:10,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:10,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 13:06:10,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:06:10,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 13:06:10,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:10,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:06:10,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-12 13:06:10,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:06:10,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:06:10,786 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 62 proven. 82 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 13:06:10,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1501278067] [2020-10-12 13:06:10,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:06:10,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:06:10,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445969179] [2020-10-12 13:06:10,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:06:10,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:06:10,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:06:10,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:06:10,788 INFO L87 Difference]: Start difference. First operand 1180 states and 1593 transitions. Second operand 7 states. [2020-10-12 13:06:12,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:06:12,073 INFO L93 Difference]: Finished difference Result 2527 states and 3408 transitions. [2020-10-12 13:06:12,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 13:06:12,074 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 215 [2020-10-12 13:06:12,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:06:12,084 INFO L225 Difference]: With dead ends: 2527 [2020-10-12 13:06:12,084 INFO L226 Difference]: Without dead ends: 1353 [2020-10-12 13:06:12,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-12 13:06:12,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2020-10-12 13:06:12,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 1341. [2020-10-12 13:06:12,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1341 states. [2020-10-12 13:06:12,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1777 transitions. [2020-10-12 13:06:12,143 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1777 transitions. Word has length 215 [2020-10-12 13:06:12,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:06:12,144 INFO L479 AbstractCegarLoop]: Abstraction has 1341 states and 1777 transitions. [2020-10-12 13:06:12,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:06:12,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1777 transitions. [2020-10-12 13:06:12,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-12 13:06:12,150 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:06:12,150 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:06:12,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 13:06:12,151 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:06:12,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:06:12,151 INFO L82 PathProgramCache]: Analyzing trace with hash 962080742, now seen corresponding path program 1 times [2020-10-12 13:06:12,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:06:12,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2072936727] [2020-10-12 13:06:12,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:06:12,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:12,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:12,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:13,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:13,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:14,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:14,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-10-12 13:06:14,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:06:14,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2079 [2020-10-12 13:06:14,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:14,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:06:14,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-12 13:06:14,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-12 13:06:14,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:06:14,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:06:14,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:14,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:14,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:14,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:06:14,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:06:14,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:06:14,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:14,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:06:14,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:06:14,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:06:14,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:06:14,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:06:14,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:14,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:14,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:14,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 13:06:14,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:06:14,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 13:06:14,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:14,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:06:14,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:06:14,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 13:06:14,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:06:14,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-12 13:06:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:14,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:14,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:15,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:15,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-12 13:06:15,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:06:15,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 631 [2020-10-12 13:06:15,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:15,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 13:06:15,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:06:15,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-12 13:06:15,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:06:15,793 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2020-10-12 13:06:15,958 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2020-10-12 13:06:16,529 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 129 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 13:06:16,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2072936727] [2020-10-12 13:06:16,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:06:16,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 13:06:16,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322187401] [2020-10-12 13:06:16,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 13:06:16,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:06:16,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 13:06:16,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-12 13:06:16,532 INFO L87 Difference]: Start difference. First operand 1341 states and 1777 transitions. Second operand 12 states. [2020-10-12 13:06:17,114 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 48 [2020-10-12 13:06:17,293 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2020-10-12 13:06:18,022 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-10-12 13:06:18,384 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-10-12 13:06:18,762 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2020-10-12 13:06:19,151 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2020-10-12 13:06:19,423 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 58 [2020-10-12 13:06:19,880 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 58 [2020-10-12 13:06:20,180 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 52 [2020-10-12 13:06:20,522 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 48 [2020-10-12 13:06:20,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:06:20,959 INFO L93 Difference]: Finished difference Result 2706 states and 3675 transitions. [2020-10-12 13:06:20,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-12 13:06:20,961 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 249 [2020-10-12 13:06:20,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:06:20,969 INFO L225 Difference]: With dead ends: 2706 [2020-10-12 13:06:20,969 INFO L226 Difference]: Without dead ends: 1509 [2020-10-12 13:06:20,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=249, Invalid=681, Unknown=0, NotChecked=0, Total=930 [2020-10-12 13:06:20,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2020-10-12 13:06:21,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1491. [2020-10-12 13:06:21,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1491 states. [2020-10-12 13:06:21,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 1962 transitions. [2020-10-12 13:06:21,027 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 1962 transitions. Word has length 249 [2020-10-12 13:06:21,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:06:21,027 INFO L479 AbstractCegarLoop]: Abstraction has 1491 states and 1962 transitions. [2020-10-12 13:06:21,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 13:06:21,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 1962 transitions. [2020-10-12 13:06:21,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2020-10-12 13:06:21,033 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:06:21,034 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 13:06:21,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 13:06:21,034 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:06:21,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:06:21,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1214028333, now seen corresponding path program 1 times [2020-10-12 13:06:21,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:06:21,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [380541200] [2020-10-12 13:06:21,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:06:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:21,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:21,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:21,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:23,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:23,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 306 [2020-10-12 13:06:23,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:06:23,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2497 [2020-10-12 13:06:23,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:23,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 13:06:23,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 268 [2020-10-12 13:06:23,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-12 13:06:23,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:06:23,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:06:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:23,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:23,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:23,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:06:23,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:06:23,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:06:23,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:23,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:06:23,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:06:23,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:06:23,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:06:23,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:06:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:23,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:23,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:23,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 13:06:23,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:06:23,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 13:06:23,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:23,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:06:23,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:06:23,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:06:23,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:06:23,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 13:06:23,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:23,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:24,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:24,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-12 13:06:24,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:06:24,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-12 13:06:24,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:24,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:06:24,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:06:24,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-12 13:06:24,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 13:06:24,202 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-12 13:06:24,202 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [380541200] [2020-10-12 13:06:24,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:06:24,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 13:06:24,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283307796] [2020-10-12 13:06:24,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 13:06:24,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:06:24,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 13:06:24,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:06:24,208 INFO L87 Difference]: Start difference. First operand 1491 states and 1962 transitions. Second operand 8 states. [2020-10-12 13:06:25,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:06:25,163 INFO L93 Difference]: Finished difference Result 2866 states and 3867 transitions. [2020-10-12 13:06:25,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 13:06:25,170 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 294 [2020-10-12 13:06:25,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:06:25,178 INFO L225 Difference]: With dead ends: 2866 [2020-10-12 13:06:25,178 INFO L226 Difference]: Without dead ends: 1491 [2020-10-12 13:06:25,183 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-10-12 13:06:25,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2020-10-12 13:06:25,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1487. [2020-10-12 13:06:25,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1487 states. [2020-10-12 13:06:25,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 1941 transitions. [2020-10-12 13:06:25,221 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 1941 transitions. Word has length 294 [2020-10-12 13:06:25,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:06:25,222 INFO L479 AbstractCegarLoop]: Abstraction has 1487 states and 1941 transitions. [2020-10-12 13:06:25,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 13:06:25,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 1941 transitions. [2020-10-12 13:06:25,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2020-10-12 13:06:25,230 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:06:25,231 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:06:25,231 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 13:06:25,231 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:06:25,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:06:25,232 INFO L82 PathProgramCache]: Analyzing trace with hash -880389580, now seen corresponding path program 1 times [2020-10-12 13:06:25,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:06:25,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1141146115] [2020-10-12 13:06:25,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:06:25,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:25,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:25,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:25,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:26,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:28,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:28,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 364 [2020-10-12 13:06:28,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:06:28,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3490 [2020-10-12 13:06:28,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:28,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:06:28,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-12 13:06:28,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 202 [2020-10-12 13:06:28,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:06:28,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:06:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:28,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:28,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:28,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:06:28,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:06:28,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:06:28,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:28,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:06:28,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:06:28,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:06:28,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:06:28,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:06:28,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:28,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:28,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:28,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 13:06:28,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:06:28,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-12 13:06:28,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:28,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:06:28,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:06:28,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 13:06:28,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:06:29,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 13:06:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:29,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:29,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:29,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 13:06:29,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:06:29,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 13:06:29,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:29,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:06:29,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:06:29,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 13:06:29,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:06:29,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-12 13:06:29,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:29,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:29,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:29,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 13:06:29,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:06:29,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-12 13:06:29,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:29,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:06:29,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:06:29,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-12 13:06:29,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:06:29,567 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 339 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-12 13:06:29,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1141146115] [2020-10-12 13:06:29,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:06:29,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 13:06:29,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304774690] [2020-10-12 13:06:29,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 13:06:29,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:06:29,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 13:06:29,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:06:29,571 INFO L87 Difference]: Start difference. First operand 1487 states and 1941 transitions. Second operand 8 states. [2020-10-12 13:06:31,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:06:31,255 INFO L93 Difference]: Finished difference Result 3439 states and 4595 transitions. [2020-10-12 13:06:31,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 13:06:31,256 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 350 [2020-10-12 13:06:31,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:06:31,270 INFO L225 Difference]: With dead ends: 3439 [2020-10-12 13:06:31,270 INFO L226 Difference]: Without dead ends: 2101 [2020-10-12 13:06:31,277 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:06:31,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2101 states. [2020-10-12 13:06:31,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2101 to 2093. [2020-10-12 13:06:31,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2093 states. [2020-10-12 13:06:31,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2093 states to 2093 states and 2679 transitions. [2020-10-12 13:06:31,359 INFO L78 Accepts]: Start accepts. Automaton has 2093 states and 2679 transitions. Word has length 350 [2020-10-12 13:06:31,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:06:31,360 INFO L479 AbstractCegarLoop]: Abstraction has 2093 states and 2679 transitions. [2020-10-12 13:06:31,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 13:06:31,360 INFO L276 IsEmpty]: Start isEmpty. Operand 2093 states and 2679 transitions. [2020-10-12 13:06:31,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2020-10-12 13:06:31,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:06:31,370 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:06:31,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 13:06:31,370 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:06:31,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:06:31,371 INFO L82 PathProgramCache]: Analyzing trace with hash -932458931, now seen corresponding path program 1 times [2020-10-12 13:06:31,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:06:31,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1864047307] [2020-10-12 13:06:31,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:06:31,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:31,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:31,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:32,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:32,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 377 [2020-10-12 13:06:32,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:06:32,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1094 [2020-10-12 13:06:32,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:32,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:06:32,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 339 [2020-10-12 13:06:32,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-12 13:06:32,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:06:32,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:06:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:32,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:32,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:32,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:06:32,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:06:32,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:06:32,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:32,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:06:32,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:06:32,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:06:32,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:06:32,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:06:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:32,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:32,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:32,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 13:06:32,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:06:32,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 13:06:32,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:32,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:06:32,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:06:32,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:06:32,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:06:32,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 13:06:32,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:32,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:32,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:32,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-12 13:06:32,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:06:32,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 13:06:32,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:32,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:06:32,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:06:32,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:06:32,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:06:32,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-12 13:06:32,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:06:32,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:06:32,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:06:32,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 13:06:32,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:06:32,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-12 13:06:32,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:06:32,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:06:32,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:06:32,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-12 13:06:32,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:06:33,048 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 96 proven. 3 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-10-12 13:06:33,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1864047307] [2020-10-12 13:06:33,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:06:33,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 13:06:33,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038643982] [2020-10-12 13:06:33,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 13:06:33,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:06:33,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 13:06:33,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:06:33,052 INFO L87 Difference]: Start difference. First operand 2093 states and 2679 transitions. Second operand 6 states. [2020-10-12 13:06:34,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:06:34,697 INFO L93 Difference]: Finished difference Result 4327 states and 5605 transitions. [2020-10-12 13:06:34,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 13:06:34,698 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 363 [2020-10-12 13:06:34,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:06:34,699 INFO L225 Difference]: With dead ends: 4327 [2020-10-12 13:06:34,699 INFO L226 Difference]: Without dead ends: 0 [2020-10-12 13:06:34,708 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:06:34,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-12 13:06:34,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-12 13:06:34,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-12 13:06:34,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-12 13:06:34,709 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 363 [2020-10-12 13:06:34,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:06:34,709 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-12 13:06:34,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 13:06:34,710 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-12 13:06:34,710 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-12 13:06:34,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 13:06:34,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-12 13:06:35,249 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 38 [2020-10-12 13:06:35,424 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-12 13:06:35,425 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)|)) [2020-10-12 13:06:35,425 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-12 13:06:35,425 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-10-12 13:06:35,425 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,425 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,426 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,426 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,426 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,426 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,426 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-10-12 13:06:35,426 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-10-12 13:06:35,426 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-10-12 13:06:35,426 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-10-12 13:06:35,426 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-10-12 13:06:35,427 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-10-12 13:06:35,427 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-10-12 13:06:35,427 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-10-12 13:06:35,429 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-10-12 13:06:35,430 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-10-12 13:06:35,430 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-10-12 13:06:35,430 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,430 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,430 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,430 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,430 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,430 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-10-12 13:06:35,431 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-10-12 13:06:35,431 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-10-12 13:06:35,431 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-10-12 13:06:35,431 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-10-12 13:06:35,431 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-10-12 13:06:35,431 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-10-12 13:06:35,431 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-10-12 13:06:35,431 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-10-12 13:06:35,432 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-10-12 13:06:35,432 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-10-12 13:06:35,432 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-10-12 13:06:35,432 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-10-12 13:06:35,433 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2020-10-12 13:06:35,433 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-10-12 13:06:35,433 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,433 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,433 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,433 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,433 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,433 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-10-12 13:06:35,435 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-10-12 13:06:35,435 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-10-12 13:06:35,435 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-10-12 13:06:35,435 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-10-12 13:06:35,435 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-10-12 13:06:35,435 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-10-12 13:06:35,435 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-10-12 13:06:35,435 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-10-12 13:06:35,436 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-10-12 13:06:35,436 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,437 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,437 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,438 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,438 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,438 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-10-12 13:06:35,438 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-10-12 13:06:35,439 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-10-12 13:06:35,439 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-10-12 13:06:35,439 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-10-12 13:06:35,439 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-10-12 13:06:35,439 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-10-12 13:06:35,439 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-10-12 13:06:35,439 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-10-12 13:06:35,439 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-10-12 13:06:35,439 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-10-12 13:06:35,439 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-10-12 13:06:35,439 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-10-12 13:06:35,439 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,439 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,439 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,440 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,440 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,440 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-10-12 13:06:35,440 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-10-12 13:06:35,440 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-10-12 13:06:35,440 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-10-12 13:06:35,440 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-10-12 13:06:35,440 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-10-12 13:06:35,440 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-10-12 13:06:35,440 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-10-12 13:06:35,440 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-10-12 13:06:35,440 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,440 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,440 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,441 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,441 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,441 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,441 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,441 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-10-12 13:06:35,441 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-10-12 13:06:35,441 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-10-12 13:06:35,441 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-10-12 13:06:35,441 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-10-12 13:06:35,441 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-10-12 13:06:35,441 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-10-12 13:06:35,441 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-10-12 13:06:35,441 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-10-12 13:06:35,441 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-10-12 13:06:35,441 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-10-12 13:06:35,442 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-10-12 13:06:35,442 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-10-12 13:06:35,442 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,445 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,445 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,445 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,446 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-10-12 13:06:35,446 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,446 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,446 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-10-12 13:06:35,446 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-10-12 13:06:35,446 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-10-12 13:06:35,446 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-10-12 13:06:35,446 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-10-12 13:06:35,447 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-10-12 13:06:35,447 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-10-12 13:06:35,448 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-10-12 13:06:35,448 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-10-12 13:06:35,448 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-10-12 13:06:35,448 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-10-12 13:06:35,448 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-10-12 13:06:35,448 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-10-12 13:06:35,449 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,449 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,449 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,449 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,449 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,449 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,449 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-10-12 13:06:35,449 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-10-12 13:06:35,449 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-10-12 13:06:35,449 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-10-12 13:06:35,450 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-10-12 13:06:35,450 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-10-12 13:06:35,450 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-10-12 13:06:35,450 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-10-12 13:06:35,450 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-10-12 13:06:35,450 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-10-12 13:06:35,450 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-10-12 13:06:35,450 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 (= 14 ~a4~0)) (not (= 4 |old(~a10~0)|)) (not (= 8 |old(~a19~0)|)) (not (= ~a12~0 0))) (or .cse0 (not (<= |old(~a10~0)| 2))) (or .cse0 (not (<= |old(~a19~0)| 6))) (or .cse0 (not (= 9 |old(~a19~0)|))))) [2020-10-12 13:06:35,451 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-10-12 13:06:35,451 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-10-12 13:06:35,451 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-10-12 13:06:35,451 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,451 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,451 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,451 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,451 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,451 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,452 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-10-12 13:06:35,452 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-10-12 13:06:35,452 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-10-12 13:06:35,452 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-10-12 13:06:35,452 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-10-12 13:06:35,452 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-10-12 13:06:35,452 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-10-12 13:06:35,452 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-10-12 13:06:35,452 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-10-12 13:06:35,453 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-10-12 13:06:35,453 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-10-12 13:06:35,453 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-10-12 13:06:35,453 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-10-12 13:06:35,453 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,453 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,453 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,453 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,453 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,453 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,454 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-10-12 13:06:35,454 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-10-12 13:06:35,454 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-10-12 13:06:35,454 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-10-12 13:06:35,454 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-10-12 13:06:35,454 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-10-12 13:06:35,454 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-10-12 13:06:35,454 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-10-12 13:06:35,454 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-10-12 13:06:35,454 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-10-12 13:06:35,455 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-10-12 13:06:35,455 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-10-12 13:06:35,455 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,455 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,455 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,455 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,455 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,455 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:06:35,455 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-10-12 13:06:35,455 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-10-12 13:06:35,456 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-10-12 13:06:35,456 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-10-12 13:06:35,456 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-10-12 13:06:35,456 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-10-12 13:06:35,456 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-10-12 13:06:35,456 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-10-12 13:06:35,456 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-10-12 13:06:35,456 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-10-12 13:06:35,456 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-10-12 13:06:35,456 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-10-12 13:06:35,457 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-12 13:06:35,457 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 23 ~a1~0) (= ~a10~0 0) (= ~a19~0 9) (<= ~a1~0 23)) [2020-10-12 13:06:35,457 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-12 13:06:35,457 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-12 13:06:35,458 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (and (<= 23 ~a1~0) (<= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 0 |old(~a10~0)|))) [2020-10-12 13:06:35,459 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-10-12 13:06:35,459 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (<= ~a10~0 2) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (<= ~a19~0 6) (and (= ~a19~0 8) (= 14 ~a4~0) (= ~a12~0 0) (= ~a10~0 4))) [2020-10-12 13:06:35,459 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-10-12 13:06:35,459 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-10-12 13:06:35,459 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (<= ~a10~0 2) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (<= ~a19~0 6) (and (= ~a19~0 8) (= 14 ~a4~0) (= ~a12~0 0) (= ~a10~0 4))) [2020-10-12 13:06:35,459 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-10-12 13:06:35,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 01:06:35 BoogieIcfgContainer [2020-10-12 13:06:35,492 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 13:06:35,495 INFO L168 Benchmark]: Toolchain (without parser) took 41799.32 ms. Allocated memory was 138.9 MB in the beginning and 807.9 MB in the end (delta: 669.0 MB). Free memory was 100.1 MB in the beginning and 335.7 MB in the end (delta: -235.6 MB). Peak memory consumption was 433.3 MB. Max. memory is 7.1 GB. [2020-10-12 13:06:35,496 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 13:06:35,496 INFO L168 Benchmark]: CACSL2BoogieTranslator took 784.48 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 99.7 MB in the beginning and 168.2 MB in the end (delta: -68.5 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. [2020-10-12 13:06:35,501 INFO L168 Benchmark]: Boogie Preprocessor took 102.61 ms. Allocated memory is still 203.9 MB. Free memory was 168.2 MB in the beginning and 163.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-10-12 13:06:35,502 INFO L168 Benchmark]: RCFGBuilder took 1437.18 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 163.2 MB in the beginning and 179.2 MB in the end (delta: -16.0 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. [2020-10-12 13:06:35,508 INFO L168 Benchmark]: TraceAbstraction took 39469.24 ms. Allocated memory was 236.5 MB in the beginning and 807.9 MB in the end (delta: 571.5 MB). Free memory was 177.8 MB in the beginning and 335.7 MB in the end (delta: -158.0 MB). Peak memory consumption was 413.5 MB. Max. memory is 7.1 GB. [2020-10-12 13:06:35,514 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 784.48 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 99.7 MB in the beginning and 168.2 MB in the end (delta: -68.5 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.61 ms. Allocated memory is still 203.9 MB. Free memory was 168.2 MB in the beginning and 163.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1437.18 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 163.2 MB in the beginning and 179.2 MB in the end (delta: -16.0 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 39469.24 ms. Allocated memory was 236.5 MB in the beginning and 807.9 MB in the end (delta: 571.5 MB). Free memory was 177.8 MB in the beginning and 335.7 MB in the end (delta: -158.0 MB). Peak memory consumption was 413.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 100]: 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: ((((((!(23 <= \old(a1)) || !(9 == \old(a19))) || !(\old(a1) <= 23)) || a10 <= 2) || a19 == 9) || !(0 == \old(a10))) || a19 <= 6) || (((a19 == 8 && 14 == a4) && a12 == 0) && a10 == 4) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 38.6s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 15.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 229 SDtfs, 3644 SDslu, 270 SDs, 0 SdLazy, 7958 SolverSat, 1069 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 159 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2093occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 88 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 83 PreInvPairs, 121 NumberOfFragments, 226 HoareAnnotationTreeSize, 83 FomulaSimplifications, 7546 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1359 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 20.9s InterpolantComputationTime, 1916 NumberOfCodeBlocks, 1916 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1907 ConstructedInterpolants, 0 QuantifiedInterpolants, 2420711 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 1223/1382 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...