/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 --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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:30:06,584 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:30:06,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:30:06,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:30:06,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:30:06,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:30:06,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:30:06,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:30:06,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:30:06,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:30:06,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:30:06,665 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:30:06,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:30:06,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:30:06,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:30:06,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:30:06,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:30:06,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:30:06,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:30:06,684 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:30:06,686 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:30:06,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:30:06,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:30:06,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:30:06,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:30:06,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:30:06,692 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:30:06,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:30:06,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:30:06,695 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:30:06,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:30:06,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:30:06,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:30:06,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:30:06,699 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:30:06,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:30:06,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:30:06,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:30:06,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:30:06,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:30:06,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:30:06,703 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 [2020-09-21 12:30:06,728 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:30:06,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:30:06,730 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:30:06,730 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:30:06,730 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:30:06,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:30:06,731 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:30:06,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:30:06,731 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:30:06,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:30:06,732 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:30:06,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:30:06,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:30:06,732 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:30:06,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:30:06,733 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:30:06,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:30:06,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:30:06,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:30:06,734 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:30:06,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:30:06,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:30:06,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:30:06,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:30:06,735 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:30:06,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:30:06,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:30:06,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:30:06,736 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:30:06,736 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.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=1000;interpolation-heuristic=SMALLEST;log-additional-information=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=1000;interpolation-heuristic=SMALLEST;log-additional-information=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=1000;interpolation-heuristic=SMALLEST;log-additional-information=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=1000;interpolation-heuristic=SMALLEST;log-additional-information=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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:30:07,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:30:07,274 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:30:07,281 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:30:07,283 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:30:07,283 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:30:07,285 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label41.c [2020-09-21 12:30:07,375 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/869d372c6/f6e5bfd0d2fb4ed796f924a221d7969d/FLAG557266765 [2020-09-21 12:30:08,042 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:30:08,043 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label41.c [2020-09-21 12:30:08,057 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/869d372c6/f6e5bfd0d2fb4ed796f924a221d7969d/FLAG557266765 [2020-09-21 12:30:08,261 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/869d372c6/f6e5bfd0d2fb4ed796f924a221d7969d [2020-09-21 12:30:08,274 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:30:08,279 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:30:08,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:30:08,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:30:08,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:30:08,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:30:08" (1/1) ... [2020-09-21 12:30:08,291 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5783693b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:30:08, skipping insertion in model container [2020-09-21 12:30:08,291 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:30:08" (1/1) ... [2020-09-21 12:30:08,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:30:08,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:30:08,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:30:08,854 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:30:09,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:30:09,089 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:30:09,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:30:09 WrapperNode [2020-09-21 12:30:09,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:30:09,091 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:30:09,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:30:09,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:30:09,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:30:09" (1/1) ... [2020-09-21 12:30:09,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:30:09" (1/1) ... [2020-09-21 12:30:09,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:30:09" (1/1) ... [2020-09-21 12:30:09,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:30:09" (1/1) ... [2020-09-21 12:30:09,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:30:09" (1/1) ... [2020-09-21 12:30:09,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:30:09" (1/1) ... [2020-09-21 12:30:09,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:30:09" (1/1) ... [2020-09-21 12:30:09,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:30:09,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:30:09,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:30:09,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:30:09,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:30:09" (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 [2020-09-21 12:30:09,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:30:09,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:30:09,294 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-21 12:30:09,294 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:30:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-21 12:30:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:30:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:30:09,295 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 12:30:09,295 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:30:09,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:30:09,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:30:10,493 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:30:10,493 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 12:30:10,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:30:10 BoogieIcfgContainer [2020-09-21 12:30:10,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:30:10,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:30:10,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:30:10,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:30:10,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:30:08" (1/3) ... [2020-09-21 12:30:10,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc0fd8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:30:10, skipping insertion in model container [2020-09-21 12:30:10,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:30:09" (2/3) ... [2020-09-21 12:30:10,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc0fd8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:30:10, skipping insertion in model container [2020-09-21 12:30:10,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:30:10" (3/3) ... [2020-09-21 12:30:10,523 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label41.c [2020-09-21 12:30:10,535 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:30:10,548 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:30:10,571 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:30:10,611 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:30:10,612 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:30:10,612 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:30:10,612 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:30:10,612 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:30:10,613 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:30:10,613 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:30:10,613 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:30:10,644 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-09-21 12:30:10,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-09-21 12:30:10,667 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:30:10,668 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:30:10,669 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:30:10,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:30:10,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1961179338, now seen corresponding path program 1 times [2020-09-21 12:30:10,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:30:10,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1144015937] [2020-09-21 12:30:10,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:30:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:11,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:11,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:11,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:11,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-21 12:30:11,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:30:11,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1022 [2020-09-21 12:30:11,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:11,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:30:11,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:30:11,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-21 12:30:11,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 23 [2020-09-21 12:30:12,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:30:12,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:12,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:12,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:12,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:30:12,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:12,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:30:12,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:12,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:30:12,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:30:12,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:30:12,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:30:12,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:30:12,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1144015937] [2020-09-21 12:30:12,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:30:12,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:30:12,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335733489] [2020-09-21 12:30:12,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:30:12,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:30:12,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:30:12,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:30:12,304 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 5 states. [2020-09-21 12:30:14,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:30:14,723 INFO L93 Difference]: Finished difference Result 828 states and 1432 transitions. [2020-09-21 12:30:14,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:30:14,725 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 96 [2020-09-21 12:30:14,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:30:14,750 INFO L225 Difference]: With dead ends: 828 [2020-09-21 12:30:14,751 INFO L226 Difference]: Without dead ends: 494 [2020-09-21 12:30:14,760 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:30:14,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-09-21 12:30:14,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 475. [2020-09-21 12:30:14,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2020-09-21 12:30:14,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 685 transitions. [2020-09-21 12:30:14,870 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 685 transitions. Word has length 96 [2020-09-21 12:30:14,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:30:14,871 INFO L479 AbstractCegarLoop]: Abstraction has 475 states and 685 transitions. [2020-09-21 12:30:14,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:30:14,871 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 685 transitions. [2020-09-21 12:30:14,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-21 12:30:14,885 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:30:14,886 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:30:14,886 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:30:14,886 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:30:14,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:30:14,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1188249681, now seen corresponding path program 1 times [2020-09-21 12:30:14,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:30:14,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [989326307] [2020-09-21 12:30:14,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:30:14,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:14,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:15,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:15,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:15,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:15,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-21 12:30:15,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:30:15,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1009 [2020-09-21 12:30:15,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:15,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:30:15,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-21 12:30:15,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-21 12:30:15,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:30:16,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:30:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:16,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:16,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:16,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:30:16,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:16,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:30:16,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:16,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:30:16,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:30:16,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:30:16,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 12:30:16,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:30:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:16,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:16,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:16,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:30:16,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:16,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 12:30:16,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:16,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:30:16,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:30:16,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:30:16,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:30:16,217 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:30:16,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [989326307] [2020-09-21 12:30:16,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:30:16,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 12:30:16,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996307109] [2020-09-21 12:30:16,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:30:16,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:30:16,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:30:16,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:30:16,224 INFO L87 Difference]: Start difference. First operand 475 states and 685 transitions. Second operand 5 states. [2020-09-21 12:30:17,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:30:17,761 INFO L93 Difference]: Finished difference Result 1396 states and 2061 transitions. [2020-09-21 12:30:17,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:30:17,762 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2020-09-21 12:30:17,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:30:17,770 INFO L225 Difference]: With dead ends: 1396 [2020-09-21 12:30:17,770 INFO L226 Difference]: Without dead ends: 927 [2020-09-21 12:30:17,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:30:17,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2020-09-21 12:30:17,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 918. [2020-09-21 12:30:17,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 918 states. [2020-09-21 12:30:17,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1227 transitions. [2020-09-21 12:30:17,854 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1227 transitions. Word has length 104 [2020-09-21 12:30:17,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:30:17,855 INFO L479 AbstractCegarLoop]: Abstraction has 918 states and 1227 transitions. [2020-09-21 12:30:17,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:30:17,855 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1227 transitions. [2020-09-21 12:30:17,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-09-21 12:30:17,862 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:30:17,862 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:30:17,862 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:30:17,862 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:30:17,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:30:17,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1268971123, now seen corresponding path program 1 times [2020-09-21 12:30:17,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:30:17,863 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [915004492] [2020-09-21 12:30:17,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:30:17,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:17,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:17,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:18,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:18,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 12:30:18,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:30:18,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1027 [2020-09-21 12:30:18,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:18,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:30:18,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:30:18,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 12:30:18,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:30:18,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:30:19,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:19,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:19,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:19,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:30:19,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:19,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:30:19,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:19,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:30:19,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:30:19,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:30:19,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:30:19,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:30:19,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:19,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:19,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:19,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 12:30:19,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:19,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-21 12:30:19,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:19,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:30:19,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:30:19,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:30:19,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:30:19,124 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:30:19,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [915004492] [2020-09-21 12:30:19,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:30:19,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 12:30:19,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175158102] [2020-09-21 12:30:19,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:30:19,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:30:19,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:30:19,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:30:19,128 INFO L87 Difference]: Start difference. First operand 918 states and 1227 transitions. Second operand 7 states. [2020-09-21 12:30:20,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:30:20,568 INFO L93 Difference]: Finished difference Result 2605 states and 3679 transitions. [2020-09-21 12:30:20,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 12:30:20,570 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 106 [2020-09-21 12:30:20,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:30:20,585 INFO L225 Difference]: With dead ends: 2605 [2020-09-21 12:30:20,585 INFO L226 Difference]: Without dead ends: 1693 [2020-09-21 12:30:20,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:30:20,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1693 states. [2020-09-21 12:30:20,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1693 to 1659. [2020-09-21 12:30:20,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1659 states. [2020-09-21 12:30:20,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1659 states to 1659 states and 2235 transitions. [2020-09-21 12:30:20,705 INFO L78 Accepts]: Start accepts. Automaton has 1659 states and 2235 transitions. Word has length 106 [2020-09-21 12:30:20,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:30:20,706 INFO L479 AbstractCegarLoop]: Abstraction has 1659 states and 2235 transitions. [2020-09-21 12:30:20,706 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:30:20,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1659 states and 2235 transitions. [2020-09-21 12:30:20,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-09-21 12:30:20,714 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:30:20,714 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:30:20,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:30:20,715 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:30:20,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:30:20,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1953808737, now seen corresponding path program 1 times [2020-09-21 12:30:20,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:30:20,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1651915199] [2020-09-21 12:30:20,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:30:20,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:20,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:20,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:21,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:21,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:21,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-21 12:30:21,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:30:21,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1005 [2020-09-21 12:30:21,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:21,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:30:21,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-21 12:30:21,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-21 12:30:21,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:30:21,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:30:21,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:21,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:21,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:21,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:30:21,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:21,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:30:21,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:21,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:30:21,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:30:21,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:30:21,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:30:21,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:30:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:21,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:21,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:21,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:30:21,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:21,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:30:21,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:21,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:30:21,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:30:21,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:30:21,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:30:21,956 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:30:21,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1651915199] [2020-09-21 12:30:21,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:30:21,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 12:30:21,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380773384] [2020-09-21 12:30:21,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:30:21,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:30:21,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:30:21,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:30:21,959 INFO L87 Difference]: Start difference. First operand 1659 states and 2235 transitions. Second operand 5 states. [2020-09-21 12:30:23,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:30:23,321 INFO L93 Difference]: Finished difference Result 4203 states and 5868 transitions. [2020-09-21 12:30:23,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:30:23,322 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-09-21 12:30:23,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:30:23,339 INFO L225 Difference]: With dead ends: 4203 [2020-09-21 12:30:23,339 INFO L226 Difference]: Without dead ends: 2550 [2020-09-21 12:30:23,344 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 [2020-09-21 12:30:23,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2550 states. [2020-09-21 12:30:23,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2550 to 2533. [2020-09-21 12:30:23,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2533 states. [2020-09-21 12:30:23,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2533 states to 2533 states and 3236 transitions. [2020-09-21 12:30:23,437 INFO L78 Accepts]: Start accepts. Automaton has 2533 states and 3236 transitions. Word has length 109 [2020-09-21 12:30:23,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:30:23,439 INFO L479 AbstractCegarLoop]: Abstraction has 2533 states and 3236 transitions. [2020-09-21 12:30:23,439 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:30:23,439 INFO L276 IsEmpty]: Start isEmpty. Operand 2533 states and 3236 transitions. [2020-09-21 12:30:23,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-09-21 12:30:23,445 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:30:23,445 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:30:23,446 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:30:23,446 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:30:23,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:30:23,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1624587727, now seen corresponding path program 1 times [2020-09-21 12:30:23,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:30:23,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [765859844] [2020-09-21 12:30:23,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:30:23,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:23,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:23,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:23,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:24,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:24,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:24,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-21 12:30:24,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:30:24,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1023 [2020-09-21 12:30:24,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:24,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:30:24,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-21 12:30:24,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:30:24,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:30:24,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:30:24,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:24,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:24,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:24,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:30:24,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:24,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:30:24,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:24,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:30:24,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:30:24,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:30:24,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:30:24,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:30:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:24,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:24,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:24,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 12:30:24,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:24,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-21 12:30:24,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:24,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:30:24,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 12:30:24,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:30:24,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:30:24,663 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:30:24,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [765859844] [2020-09-21 12:30:24,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:30:24,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:30:24,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437691313] [2020-09-21 12:30:24,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:30:24,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:30:24,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:30:24,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:30:24,666 INFO L87 Difference]: Start difference. First operand 2533 states and 3236 transitions. Second operand 5 states. [2020-09-21 12:30:25,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:30:25,893 INFO L93 Difference]: Finished difference Result 5795 states and 7690 transitions. [2020-09-21 12:30:25,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:30:25,894 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 117 [2020-09-21 12:30:25,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:30:25,910 INFO L225 Difference]: With dead ends: 5795 [2020-09-21 12:30:25,911 INFO L226 Difference]: Without dead ends: 3268 [2020-09-21 12:30:25,918 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:30:25,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3268 states. [2020-09-21 12:30:26,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3268 to 3263. [2020-09-21 12:30:26,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3263 states. [2020-09-21 12:30:26,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3263 states to 3263 states and 4163 transitions. [2020-09-21 12:30:26,012 INFO L78 Accepts]: Start accepts. Automaton has 3263 states and 4163 transitions. Word has length 117 [2020-09-21 12:30:26,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:30:26,013 INFO L479 AbstractCegarLoop]: Abstraction has 3263 states and 4163 transitions. [2020-09-21 12:30:26,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:30:26,013 INFO L276 IsEmpty]: Start isEmpty. Operand 3263 states and 4163 transitions. [2020-09-21 12:30:26,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-09-21 12:30:26,020 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:30:26,020 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:30:26,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:30:26,020 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:30:26,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:30:26,021 INFO L82 PathProgramCache]: Analyzing trace with hash -2031673462, now seen corresponding path program 1 times [2020-09-21 12:30:26,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:30:26,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [70372872] [2020-09-21 12:30:26,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:30:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:26,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:26,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:27,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:27,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-21 12:30:27,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:30:27,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1015 [2020-09-21 12:30:27,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:27,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:30:27,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-21 12:30:27,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-21 12:30:27,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:30:27,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:30:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:27,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:27,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:27,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:30:27,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:27,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:30:27,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:27,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:30:27,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:30:27,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:30:27,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:30:27,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:30:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:27,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:27,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:27,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 12:30:27,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:27,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-21 12:30:27,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:27,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:30:27,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:30:27,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-21 12:30:27,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:30:27,445 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:30:27,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [70372872] [2020-09-21 12:30:27,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:30:27,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 12:30:27,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35771061] [2020-09-21 12:30:27,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:30:27,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:30:27,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:30:27,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:30:27,448 INFO L87 Difference]: Start difference. First operand 3263 states and 4163 transitions. Second operand 5 states. [2020-09-21 12:30:28,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:30:28,975 INFO L93 Difference]: Finished difference Result 6608 states and 8504 transitions. [2020-09-21 12:30:28,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:30:28,976 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2020-09-21 12:30:28,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:30:28,994 INFO L225 Difference]: With dead ends: 6608 [2020-09-21 12:30:28,995 INFO L226 Difference]: Without dead ends: 3267 [2020-09-21 12:30:29,004 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:30:29,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3267 states. [2020-09-21 12:30:29,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3267 to 3263. [2020-09-21 12:30:29,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3263 states. [2020-09-21 12:30:29,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3263 states to 3263 states and 4112 transitions. [2020-09-21 12:30:29,106 INFO L78 Accepts]: Start accepts. Automaton has 3263 states and 4112 transitions. Word has length 120 [2020-09-21 12:30:29,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:30:29,106 INFO L479 AbstractCegarLoop]: Abstraction has 3263 states and 4112 transitions. [2020-09-21 12:30:29,106 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:30:29,106 INFO L276 IsEmpty]: Start isEmpty. Operand 3263 states and 4112 transitions. [2020-09-21 12:30:29,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-09-21 12:30:29,113 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:30:29,114 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:30:29,114 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:30:29,114 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:30:29,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:30:29,115 INFO L82 PathProgramCache]: Analyzing trace with hash -789754682, now seen corresponding path program 1 times [2020-09-21 12:30:29,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:30:29,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [553062950] [2020-09-21 12:30:29,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:30:29,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:29,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:29,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:30,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:30,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-21 12:30:30,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:30:30,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1023 [2020-09-21 12:30:30,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:30,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:30:30,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-21 12:30:30,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-21 12:30:30,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:30:30,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:30:30,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:30,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:30,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:30,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:30:30,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:30,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:30:30,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:30,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:30:30,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:30:30,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:30:30,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:30:30,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:30:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:30,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:30,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:30,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:30:30,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:30,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-21 12:30:30,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:30,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:30:30,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:30:30,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 12:30:30,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:30:30,470 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:30:30,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [553062950] [2020-09-21 12:30:30,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:30:30,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 12:30:30,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28071751] [2020-09-21 12:30:30,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:30:30,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:30:30,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:30:30,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:30:30,473 INFO L87 Difference]: Start difference. First operand 3263 states and 4112 transitions. Second operand 5 states. [2020-09-21 12:30:31,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:30:31,606 INFO L93 Difference]: Finished difference Result 6608 states and 8370 transitions. [2020-09-21 12:30:31,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:30:31,607 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 122 [2020-09-21 12:30:31,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:30:31,622 INFO L225 Difference]: With dead ends: 6608 [2020-09-21 12:30:31,622 INFO L226 Difference]: Without dead ends: 3265 [2020-09-21 12:30:31,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:30:31,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3265 states. [2020-09-21 12:30:31,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3265 to 3261. [2020-09-21 12:30:31,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3261 states. [2020-09-21 12:30:31,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3261 states to 3261 states and 4040 transitions. [2020-09-21 12:30:31,711 INFO L78 Accepts]: Start accepts. Automaton has 3261 states and 4040 transitions. Word has length 122 [2020-09-21 12:30:31,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:30:31,711 INFO L479 AbstractCegarLoop]: Abstraction has 3261 states and 4040 transitions. [2020-09-21 12:30:31,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:30:31,712 INFO L276 IsEmpty]: Start isEmpty. Operand 3261 states and 4040 transitions. [2020-09-21 12:30:31,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-09-21 12:30:31,718 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:30:31,718 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:30:31,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 12:30:31,719 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:30:31,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:30:31,719 INFO L82 PathProgramCache]: Analyzing trace with hash -2047912838, now seen corresponding path program 1 times [2020-09-21 12:30:31,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:30:31,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1335547730] [2020-09-21 12:30:31,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:30:31,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:31,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:31,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:32,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:32,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:32,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-09-21 12:30:32,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:30:32,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1006 [2020-09-21 12:30:32,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:32,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:30:32,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 12:30:32,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-21 12:30:32,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:30:32,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:30:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:32,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:32,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:32,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:30:32,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:32,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:30:32,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:32,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:30:32,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:30:32,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:30:32,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:30:32,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:30:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:32,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:32,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:32,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:30:32,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:32,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-21 12:30:32,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:32,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:30:32,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:30:32,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-21 12:30:32,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:30:33,003 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:30:33,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1335547730] [2020-09-21 12:30:33,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:30:33,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 12:30:33,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863547193] [2020-09-21 12:30:33,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:30:33,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:30:33,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:30:33,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:30:33,005 INFO L87 Difference]: Start difference. First operand 3261 states and 4040 transitions. Second operand 5 states. [2020-09-21 12:30:34,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:30:34,181 INFO L93 Difference]: Finished difference Result 6963 states and 8678 transitions. [2020-09-21 12:30:34,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:30:34,182 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 128 [2020-09-21 12:30:34,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:30:34,197 INFO L225 Difference]: With dead ends: 6963 [2020-09-21 12:30:34,197 INFO L226 Difference]: Without dead ends: 3708 [2020-09-21 12:30:34,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:30:34,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3708 states. [2020-09-21 12:30:34,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3708 to 3557. [2020-09-21 12:30:34,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3557 states. [2020-09-21 12:30:34,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3557 states to 3557 states and 4377 transitions. [2020-09-21 12:30:34,335 INFO L78 Accepts]: Start accepts. Automaton has 3557 states and 4377 transitions. Word has length 128 [2020-09-21 12:30:34,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:30:34,335 INFO L479 AbstractCegarLoop]: Abstraction has 3557 states and 4377 transitions. [2020-09-21 12:30:34,335 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:30:34,335 INFO L276 IsEmpty]: Start isEmpty. Operand 3557 states and 4377 transitions. [2020-09-21 12:30:34,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-09-21 12:30:34,343 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:30:34,344 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:30:34,344 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 12:30:34,344 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:30:34,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:30:34,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1902593679, now seen corresponding path program 1 times [2020-09-21 12:30:34,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:30:34,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [564671648] [2020-09-21 12:30:34,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:30:34,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:34,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:34,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:34,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:35,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:35,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:35,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-09-21 12:30:35,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:30:35,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1017 [2020-09-21 12:30:35,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:35,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:30:35,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-21 12:30:35,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-21 12:30:35,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:30:35,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:30:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:35,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:35,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:35,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:30:35,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:35,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:30:35,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:35,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:30:35,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:30:35,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:30:35,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:30:35,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:30:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:35,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:35,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:35,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:30:35,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:35,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:30:35,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:35,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:30:35,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:30:35,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:30:35,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:30:35,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 12:30:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:35,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:35,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:35,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-21 12:30:35,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:35,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-21 12:30:35,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:35,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:30:35,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:30:35,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-21 12:30:35,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:30:35,693 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-21 12:30:35,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [564671648] [2020-09-21 12:30:35,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:30:35,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 12:30:35,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55012564] [2020-09-21 12:30:35,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:30:35,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:30:35,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:30:35,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:30:35,702 INFO L87 Difference]: Start difference. First operand 3557 states and 4377 transitions. Second operand 5 states. [2020-09-21 12:30:36,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:30:36,933 INFO L93 Difference]: Finished difference Result 6519 states and 8087 transitions. [2020-09-21 12:30:36,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:30:36,934 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2020-09-21 12:30:36,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:30:36,946 INFO L225 Difference]: With dead ends: 6519 [2020-09-21 12:30:36,946 INFO L226 Difference]: Without dead ends: 2968 [2020-09-21 12:30:36,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:30:36,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2020-09-21 12:30:37,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 2674. [2020-09-21 12:30:37,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2674 states. [2020-09-21 12:30:37,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 3098 transitions. [2020-09-21 12:30:37,016 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 3098 transitions. Word has length 146 [2020-09-21 12:30:37,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:30:37,017 INFO L479 AbstractCegarLoop]: Abstraction has 2674 states and 3098 transitions. [2020-09-21 12:30:37,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:30:37,017 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 3098 transitions. [2020-09-21 12:30:37,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-21 12:30:37,024 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:30:37,024 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:30:37,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 12:30:37,025 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:30:37,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:30:37,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1660737696, now seen corresponding path program 1 times [2020-09-21 12:30:37,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:30:37,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1350468628] [2020-09-21 12:30:37,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:30:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:37,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:37,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:37,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:38,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:38,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-09-21 12:30:38,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:30:38,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-21 12:30:38,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:38,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:30:38,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-21 12:30:38,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-21 12:30:38,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:30:38,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:30:38,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:38,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:38,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:38,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:30:38,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:38,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:30:38,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:38,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:30:38,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:30:38,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:30:38,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:30:38,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:30:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:38,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:38,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:38,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-21 12:30:38,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:38,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-21 12:30:38,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:38,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:30:38,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:30:38,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 12:30:38,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:30:38,409 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:30:38,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1350468628] [2020-09-21 12:30:38,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:30:38,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 12:30:38,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392514199] [2020-09-21 12:30:38,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:30:38,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:30:38,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:30:38,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:30:38,411 INFO L87 Difference]: Start difference. First operand 2674 states and 3098 transitions. Second operand 5 states. [2020-09-21 12:30:39,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:30:39,738 INFO L93 Difference]: Finished difference Result 6211 states and 7238 transitions. [2020-09-21 12:30:39,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:30:39,739 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 153 [2020-09-21 12:30:39,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:30:39,753 INFO L225 Difference]: With dead ends: 6211 [2020-09-21 12:30:39,754 INFO L226 Difference]: Without dead ends: 3543 [2020-09-21 12:30:39,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:30:39,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3543 states. [2020-09-21 12:30:39,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3543 to 3250. [2020-09-21 12:30:39,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3250 states. [2020-09-21 12:30:39,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3250 states to 3250 states and 3775 transitions. [2020-09-21 12:30:39,851 INFO L78 Accepts]: Start accepts. Automaton has 3250 states and 3775 transitions. Word has length 153 [2020-09-21 12:30:39,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:30:39,852 INFO L479 AbstractCegarLoop]: Abstraction has 3250 states and 3775 transitions. [2020-09-21 12:30:39,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:30:39,852 INFO L276 IsEmpty]: Start isEmpty. Operand 3250 states and 3775 transitions. [2020-09-21 12:30:39,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-21 12:30:39,862 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:30:39,862 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:30:39,862 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 12:30:39,862 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:30:39,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:30:39,863 INFO L82 PathProgramCache]: Analyzing trace with hash -850520812, now seen corresponding path program 1 times [2020-09-21 12:30:39,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:30:39,863 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1911265493] [2020-09-21 12:30:39,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:30:39,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:39,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:40,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:40,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:40,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:40,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:40,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-21 12:30:40,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:30:40,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1028 [2020-09-21 12:30:40,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:40,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:30:40,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-21 12:30:40,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 12:30:40,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:30:41,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:30:41,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:41,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:41,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:41,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:30:41,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:41,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:30:41,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:41,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:30:41,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:30:41,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:30:41,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:30:41,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:30:41,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:41,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:41,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:41,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:30:41,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:41,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:30:41,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:41,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:30:41,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:30:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:30:41,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:30:41,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 12:30:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:41,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:41,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:41,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-21 12:30:41,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:41,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-21 12:30:41,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:41,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:30:41,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:30:41,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-21 12:30:41,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:30:41,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-09-21 12:30:41,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:41,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:41,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:41,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:41,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 12:30:41,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:30:41,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-21 12:30:41,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:41,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:30:41,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:30:41,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 12:30:41,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:30:41,314 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 85 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-21 12:30:41,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1911265493] [2020-09-21 12:30:41,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:30:41,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:30:41,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146553904] [2020-09-21 12:30:41,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:30:41,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:30:41,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:30:41,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:30:41,319 INFO L87 Difference]: Start difference. First operand 3250 states and 3775 transitions. Second operand 7 states. [2020-09-21 12:30:42,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:30:42,659 INFO L93 Difference]: Finished difference Result 7528 states and 8758 transitions. [2020-09-21 12:30:42,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 12:30:42,659 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 166 [2020-09-21 12:30:42,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:30:42,675 INFO L225 Difference]: With dead ends: 7528 [2020-09-21 12:30:42,675 INFO L226 Difference]: Without dead ends: 4284 [2020-09-21 12:30:42,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-21 12:30:42,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4284 states. [2020-09-21 12:30:42,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4284 to 3702. [2020-09-21 12:30:42,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3702 states. [2020-09-21 12:30:42,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3702 states to 3702 states and 4155 transitions. [2020-09-21 12:30:42,757 INFO L78 Accepts]: Start accepts. Automaton has 3702 states and 4155 transitions. Word has length 166 [2020-09-21 12:30:42,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:30:42,757 INFO L479 AbstractCegarLoop]: Abstraction has 3702 states and 4155 transitions. [2020-09-21 12:30:42,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:30:42,758 INFO L276 IsEmpty]: Start isEmpty. Operand 3702 states and 4155 transitions. [2020-09-21 12:30:42,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-09-21 12:30:42,769 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:30:42,769 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:30:42,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 12:30:42,770 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:30:42,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:30:42,770 INFO L82 PathProgramCache]: Analyzing trace with hash -307005087, now seen corresponding path program 1 times [2020-09-21 12:30:42,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:30:42,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [443773387] [2020-09-21 12:30:42,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:30:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:42,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:42,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:43,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:43,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:43,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:43,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-09-21 12:30:43,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:30:43,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1014 [2020-09-21 12:30:43,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:43,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:30:43,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-09-21 12:30:43,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-21 12:30:43,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:30:43,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:30:43,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:43,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:44,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:44,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:30:44,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:44,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:30:44,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:44,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:30:44,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:30:44,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:30:44,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:30:44,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:30:44,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:44,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:44,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:44,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-21 12:30:44,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:44,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-21 12:30:44,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:44,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:30:44,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:30:44,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:30:44,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:30:44,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-21 12:30:44,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:44,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:44,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:44,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-21 12:30:44,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:44,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 12:30:44,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:44,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:30:44,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:30:44,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:30:44,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:30:44,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-21 12:30:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:30:44,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:30:44,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:30:44,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 12:30:44,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:30:44,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 12:30:44,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:30:44,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:30:44,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:30:44,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 12:30:44,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:30:44,258 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 105 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-09-21 12:30:44,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [443773387] [2020-09-21 12:30:44,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:30:44,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 12:30:44,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336526183] [2020-09-21 12:30:44,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:30:44,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:30:44,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:30:44,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:30:44,260 INFO L87 Difference]: Start difference. First operand 3702 states and 4155 transitions. Second operand 5 states. [2020-09-21 12:30:45,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:30:45,374 INFO L93 Difference]: Finished difference Result 5601 states and 6251 transitions. [2020-09-21 12:30:45,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:30:45,374 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 209 [2020-09-21 12:30:45,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:30:45,375 INFO L225 Difference]: With dead ends: 5601 [2020-09-21 12:30:45,375 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 12:30:45,385 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:30:45,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 12:30:45,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 12:30:45,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 12:30:45,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 12:30:45,386 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 209 [2020-09-21 12:30:45,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:30:45,387 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 12:30:45,387 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:30:45,387 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 12:30:45,387 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 12:30:45,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 12:30:45,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 12:30:45,826 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-09-21 12:30:47,665 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 128 [2020-09-21 12:30:48,270 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 128 [2020-09-21 12:30:49,981 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 203 DAG size of output: 82 [2020-09-21 12:30:50,618 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 56 [2020-09-21 12:30:51,198 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 56 [2020-09-21 12:30:51,204 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 12:30:51,204 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-09-21 12:30:51,205 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 12:30:51,205 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,205 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,205 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,205 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,206 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,206 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-09-21 12:30:51,206 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-09-21 12:30:51,206 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-09-21 12:30:51,206 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-09-21 12:30:51,206 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-09-21 12:30:51,207 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-09-21 12:30:51,207 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-09-21 12:30:51,207 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-09-21 12:30:51,207 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-09-21 12:30:51,207 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-09-21 12:30:51,207 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-09-21 12:30:51,207 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-09-21 12:30:51,207 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-09-21 12:30:51,207 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,207 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,207 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,207 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,208 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-09-21 12:30:51,208 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,208 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-09-21 12:30:51,208 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-09-21 12:30:51,208 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-09-21 12:30:51,208 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-09-21 12:30:51,208 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-09-21 12:30:51,208 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-09-21 12:30:51,209 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-09-21 12:30:51,209 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-09-21 12:30:51,209 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-09-21 12:30:51,209 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-09-21 12:30:51,209 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-09-21 12:30:51,209 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-09-21 12:30:51,209 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-09-21 12:30:51,209 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-09-21 12:30:51,209 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-09-21 12:30:51,209 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,210 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,210 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,210 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,210 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,210 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 442) no Hoare annotation was computed. [2020-09-21 12:30:51,210 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-09-21 12:30:51,210 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-09-21 12:30:51,211 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-09-21 12:30:51,211 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-09-21 12:30:51,211 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-09-21 12:30:51,211 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-09-21 12:30:51,211 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-09-21 12:30:51,211 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-09-21 12:30:51,211 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-09-21 12:30:51,211 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-09-21 12:30:51,212 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-09-21 12:30:51,212 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,212 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,212 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,212 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,212 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,212 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-09-21 12:30:51,212 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-09-21 12:30:51,212 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-09-21 12:30:51,213 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-09-21 12:30:51,213 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-09-21 12:30:51,213 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-09-21 12:30:51,213 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-09-21 12:30:51,213 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-09-21 12:30:51,213 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-09-21 12:30:51,213 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-09-21 12:30:51,213 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-09-21 12:30:51,213 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-09-21 12:30:51,213 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-09-21 12:30:51,213 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,214 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,214 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,214 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,214 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,214 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-09-21 12:30:51,214 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-09-21 12:30:51,214 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-09-21 12:30:51,214 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-09-21 12:30:51,215 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-09-21 12:30:51,215 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-09-21 12:30:51,215 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-09-21 12:30:51,215 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-09-21 12:30:51,215 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-09-21 12:30:51,215 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-09-21 12:30:51,215 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-09-21 12:30:51,215 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-09-21 12:30:51,215 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-09-21 12:30:51,216 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-09-21 12:30:51,216 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-09-21 12:30:51,216 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-09-21 12:30:51,216 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,216 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,216 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,216 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,216 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-09-21 12:30:51,217 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,217 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-09-21 12:30:51,217 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,217 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-09-21 12:30:51,217 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-09-21 12:30:51,217 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-09-21 12:30:51,217 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,217 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,217 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-09-21 12:30:51,217 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-09-21 12:30:51,218 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-09-21 12:30:51,218 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-09-21 12:30:51,218 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-09-21 12:30:51,218 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-09-21 12:30:51,218 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-09-21 12:30:51,218 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-09-21 12:30:51,218 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-09-21 12:30:51,218 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-09-21 12:30:51,218 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-09-21 12:30:51,219 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,219 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,219 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,219 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,219 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,219 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,219 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-09-21 12:30:51,220 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-09-21 12:30:51,220 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-09-21 12:30:51,220 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-09-21 12:30:51,220 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-09-21 12:30:51,220 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-09-21 12:30:51,220 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-09-21 12:30:51,220 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-09-21 12:30:51,220 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-09-21 12:30:51,221 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-09-21 12:30:51,221 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-09-21 12:30:51,221 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,221 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,221 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,221 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,221 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,221 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,222 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-09-21 12:30:51,222 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-09-21 12:30:51,222 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-09-21 12:30:51,222 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-09-21 12:30:51,222 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-09-21 12:30:51,222 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-09-21 12:30:51,222 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-09-21 12:30:51,222 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-09-21 12:30:51,222 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-09-21 12:30:51,223 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-09-21 12:30:51,223 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-09-21 12:30:51,223 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-09-21 12:30:51,223 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-09-21 12:30:51,223 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-09-21 12:30:51,223 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,223 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,223 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,224 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse10 (= |old(~a25~0)| 1)) (.cse17 (= ~a28~0 |old(~a28~0)|)) (.cse3 (= ~a11~0 |old(~a11~0)|)) (.cse4 (= ~a25~0 |old(~a25~0)|)) (.cse5 (= ~a17~0 8)) (.cse7 (= ~a19~0 |old(~a19~0)|))) (let ((.cse8 (not (<= |old(~a28~0)| 8))) (.cse6 (= ~a28~0 9)) (.cse2 (not (= 9 |old(~a28~0)|))) (.cse11 (= |old(~a11~0)| |old(~a19~0)|)) (.cse14 (not (<= |old(~a25~0)| 0))) (.cse15 (= ~a17~0 |old(~a17~0)|)) (.cse16 (not (<= 10 |old(~a28~0)|))) (.cse9 (and .cse17 .cse3 .cse4 .cse5 .cse7)) (.cse18 (= |old(~a11~0)| |old(~a25~0)|)) (.cse12 (= 7 ~a28~0)) (.cse13 (not (= 7 |old(~a28~0)|))) (.cse20 (not .cse10)) (.cse0 (not (= |old(~a19~0)| 1))) (.cse1 (not (= 8 |old(~a17~0)|))) (.cse19 (= ~a25~0 1)) (.cse21 (not (= ~a21~0 1)))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5 .cse6 .cse7)) (or .cse8 .cse9 .cse10 .cse1 .cse11) (or (and .cse3 .cse4 .cse5 .cse12 .cse7) .cse1 .cse13) (or .cse8 .cse9 .cse1 .cse14) (or (and .cse15 .cse3 .cse4 .cse6 .cse7) .cse2 .cse11) (or .cse0 .cse9 .cse1 .cse11) (or .cse0 .cse14 .cse16 (and .cse17 .cse15 .cse3 (= ~a19~0 1) .cse4)) (or (and .cse17 .cse15 .cse3 .cse4 .cse7) .cse16 .cse18) (or .cse0 .cse9 .cse1 .cse18) (or (and (= 7 ~a17~0) .cse3 .cse12 .cse19 .cse7) .cse20 (not (= 7 |old(~a17~0)|)) .cse0 .cse21 .cse13 (not (= |old(~a11~0)| 1))) (or .cse20 (not (= 10 |old(~a28~0)|)) .cse0 .cse1 (and .cse3 .cse5 .cse19 .cse7 (= ~a28~0 10)) .cse21)))) [2020-09-21 12:30:51,224 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,224 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,224 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,224 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-09-21 12:30:51,225 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-09-21 12:30:51,225 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-09-21 12:30:51,225 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-09-21 12:30:51,225 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-09-21 12:30:51,225 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-09-21 12:30:51,225 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-09-21 12:30:51,225 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-09-21 12:30:51,225 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-09-21 12:30:51,225 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-09-21 12:30:51,226 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-09-21 12:30:51,226 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-09-21 12:30:51,226 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-09-21 12:30:51,226 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,226 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,226 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,226 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,226 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,227 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,227 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-09-21 12:30:51,227 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-09-21 12:30:51,227 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-09-21 12:30:51,227 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-09-21 12:30:51,227 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-09-21 12:30:51,227 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-09-21 12:30:51,227 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-09-21 12:30:51,227 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-09-21 12:30:51,227 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-09-21 12:30:51,228 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-09-21 12:30:51,228 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-09-21 12:30:51,228 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-09-21 12:30:51,228 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-09-21 12:30:51,228 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-09-21 12:30:51,228 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-09-21 12:30:51,228 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-09-21 12:30:51,228 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,229 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,229 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,229 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,229 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:30:51,229 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-09-21 12:30:51,229 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-09-21 12:30:51,229 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-09-21 12:30:51,229 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-09-21 12:30:51,229 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-09-21 12:30:51,230 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-09-21 12:30:51,230 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-09-21 12:30:51,230 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-09-21 12:30:51,230 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-09-21 12:30:51,230 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-09-21 12:30:51,230 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-09-21 12:30:51,230 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-09-21 12:30:51,230 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-09-21 12:30:51,230 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-09-21 12:30:51,230 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-09-21 12:30:51,231 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-09-21 12:30:51,231 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-09-21 12:30:51,231 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-09-21 12:30:51,231 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-09-21 12:30:51,231 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 12:30:51,231 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 1) (= ~a17~0 8) (= 7 ~a28~0) (not (= ~a11~0 ~a19~0)) (<= ~a25~0 0)) [2020-09-21 12:30:51,231 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 12:30:51,232 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 12:30:51,232 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= |old(~a19~0)| 1)) (and (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8) (= 7 ~a28~0) (= ~a19~0 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) (= |old(~a11~0)| |old(~a19~0)|)) [2020-09-21 12:30:51,232 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse11 (= ~a25~0 1))) (let ((.cse2 (<= ~a25~0 0)) (.cse6 (= ~a28~0 9)) (.cse1 (<= 10 ~a28~0)) (.cse7 (not (= ~a25~0 ~a11~0))) (.cse3 (= ~a17~0 8)) (.cse9 (<= ~a28~0 8)) (.cse5 (not (= ~a11~0 ~a19~0))) (.cse4 (not .cse11)) (.cse0 (= ~a19~0 1)) (.cse10 (= ~a21~0 1)) (.cse8 (= 7 ~a28~0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse4) (not (= |old(~a19~0)| 1)) (and .cse5 .cse6) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse3 .cse7) (and .cse3 .cse8) (and .cse3 .cse9 .cse2) (and .cse0 .cse10 .cse3 (= ~a28~0 10)) (and .cse0 .cse3 .cse6) (and .cse1 .cse7) (and .cse3 .cse9 .cse5 .cse4) (= |old(~a11~0)| |old(~a19~0)|) (not (= 7 |old(~a28~0)|)) (and (= 7 ~a17~0) .cse0 .cse10 .cse8 .cse11 (= ~a11~0 1))))) [2020-09-21 12:30:51,232 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-09-21 12:30:51,232 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-09-21 12:30:51,233 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse11 (= ~a25~0 1))) (let ((.cse2 (<= ~a25~0 0)) (.cse6 (= ~a28~0 9)) (.cse1 (<= 10 ~a28~0)) (.cse7 (not (= ~a25~0 ~a11~0))) (.cse3 (= ~a17~0 8)) (.cse9 (<= ~a28~0 8)) (.cse5 (not (= ~a11~0 ~a19~0))) (.cse4 (not .cse11)) (.cse0 (= ~a19~0 1)) (.cse10 (= ~a21~0 1)) (.cse8 (= 7 ~a28~0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse4) (not (= |old(~a19~0)| 1)) (and .cse5 .cse6) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse3 .cse7) (and .cse3 .cse8) (and .cse3 .cse9 .cse2) (and .cse0 .cse10 .cse3 (= ~a28~0 10)) (and .cse0 .cse3 .cse6) (and .cse1 .cse7) (and .cse3 .cse9 .cse5 .cse4) (= |old(~a11~0)| |old(~a19~0)|) (not (= 7 |old(~a28~0)|)) (and (= 7 ~a17~0) .cse0 .cse10 .cse8 .cse11 (= ~a11~0 1))))) [2020-09-21 12:30:51,233 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-09-21 12:30:51,233 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-09-21 12:30:51,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:30:51 BoogieIcfgContainer [2020-09-21 12:30:51,259 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 12:30:51,262 INFO L168 Benchmark]: Toolchain (without parser) took 42985.63 ms. Allocated memory was 139.5 MB in the beginning and 698.9 MB in the end (delta: 559.4 MB). Free memory was 100.2 MB in the beginning and 455.8 MB in the end (delta: -355.6 MB). Peak memory consumption was 540.2 MB. Max. memory is 7.1 GB. [2020-09-21 12:30:51,262 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 119.8 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 12:30:51,263 INFO L168 Benchmark]: CACSL2BoogieTranslator took 810.04 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 99.5 MB in the beginning and 169.2 MB in the end (delta: -69.6 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2020-09-21 12:30:51,264 INFO L168 Benchmark]: Boogie Preprocessor took 122.98 ms. Allocated memory is still 202.4 MB. Free memory was 169.2 MB in the beginning and 164.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-09-21 12:30:51,265 INFO L168 Benchmark]: RCFGBuilder took 1294.15 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 164.2 MB in the beginning and 179.6 MB in the end (delta: -15.3 MB). Peak memory consumption was 83.2 MB. Max. memory is 7.1 GB. [2020-09-21 12:30:51,266 INFO L168 Benchmark]: TraceAbstraction took 40747.05 ms. Allocated memory was 235.4 MB in the beginning and 698.9 MB in the end (delta: 463.5 MB). Free memory was 179.6 MB in the beginning and 455.8 MB in the end (delta: -276.2 MB). Peak memory consumption was 523.6 MB. Max. memory is 7.1 GB. [2020-09-21 12:30:51,269 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 119.8 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 810.04 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 99.5 MB in the beginning and 169.2 MB in the end (delta: -69.6 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.98 ms. Allocated memory is still 202.4 MB. Free memory was 169.2 MB in the beginning and 164.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1294.15 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 164.2 MB in the beginning and 179.6 MB in the end (delta: -15.3 MB). Peak memory consumption was 83.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 40747.05 ms. Allocated memory was 235.4 MB in the beginning and 698.9 MB in the end (delta: 463.5 MB). Free memory was 179.6 MB in the beginning and 455.8 MB in the end (delta: -276.2 MB). Peak memory consumption was 523.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 442]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((((((((a19 == 1 && 10 <= a28) && a25 <= 0) || ((a19 == 1 && a17 == 8) && !(a25 == 1))) || !(\old(a19) == 1)) || (!(a11 == a19) && a28 == 9)) || !(8 == \old(a17))) || !(\old(a25) <= 0)) || ((a19 == 1 && a17 == 8) && !(a25 == a11))) || (a17 == 8 && 7 == a28)) || ((a17 == 8 && a28 <= 8) && a25 <= 0)) || (((a19 == 1 && a21 == 1) && a17 == 8) && a28 == 10)) || ((a19 == 1 && a17 == 8) && a28 == 9)) || (10 <= a28 && !(a25 == a11))) || (((a17 == 8 && a28 <= 8) && !(a11 == a19)) && !(a25 == 1))) || \old(a11) == \old(a19)) || !(7 == \old(a28))) || (((((7 == a17 && a19 == 1) && a21 == 1) && 7 == a28) && a25 == 1) && a11 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 34.7s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 17.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 457 SDtfs, 5112 SDslu, 477 SDs, 0 SdLazy, 8363 SolverSat, 1217 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 146 GetRequests, 84 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3702occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 1412 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 214 PreInvPairs, 294 NumberOfFragments, 716 HoareAnnotationTreeSize, 214 FomulaSimplifications, 543096 FormulaSimplificationTreeSizeReduction, 2.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 39417 FormulaSimplificationTreeSizeReductionInter, 2.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 15.1s InterpolantComputationTime, 1576 NumberOfCodeBlocks, 1576 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1564 ConstructedInterpolants, 0 QuantifiedInterpolants, 948945 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 3 PerfectInterpolantSequences, 474/487 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...