/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/Problem01_label46.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:28:25,237 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:28:25,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:28:25,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:28:25,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:28:25,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:28:25,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:28:25,302 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:28:25,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:28:25,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:28:25,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:28:25,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:28:25,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:28:25,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:28:25,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:28:25,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:28:25,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:28:25,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:28:25,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:28:25,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:28:25,332 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:28:25,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:28:25,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:28:25,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:28:25,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:28:25,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:28:25,348 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:28:25,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:28:25,352 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:28:25,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:28:25,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:28:25,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:28:25,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:28:25,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:28:25,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:28:25,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:28:25,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:28:25,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:28:25,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:28:25,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:28:25,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:28:25,367 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 12:28:25,410 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:28:25,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:28:25,413 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:28:25,413 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:28:25,413 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:28:25,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:28:25,414 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:28:25,414 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:28:25,414 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:28:25,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:28:25,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:28:25,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:28:25,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:28:25,417 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:28:25,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:28:25,417 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:28:25,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:28:25,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:28:25,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:28:25,418 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:28:25,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:28:25,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:28:25,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:28:25,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:28:25,419 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:28:25,419 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:28:25,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:28:25,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:28:25,420 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:28:25,420 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 12:28:25,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:28:25,903 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:28:25,907 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:28:25,909 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:28:25,909 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:28:25,911 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label46.c [2020-09-21 12:28:25,993 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/34cd667e5/6cf6067514084c7ebc4ce434df026480/FLAG3a4d5ecce [2020-09-21 12:28:26,666 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:28:26,667 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label46.c [2020-09-21 12:28:26,689 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/34cd667e5/6cf6067514084c7ebc4ce434df026480/FLAG3a4d5ecce [2020-09-21 12:28:26,893 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/34cd667e5/6cf6067514084c7ebc4ce434df026480 [2020-09-21 12:28:26,909 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:28:26,915 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:28:26,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:28:26,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:28:26,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:28:26,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:28:26" (1/1) ... [2020-09-21 12:28:26,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d084142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:26, skipping insertion in model container [2020-09-21 12:28:26,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:28:26" (1/1) ... [2020-09-21 12:28:26,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:28:26,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:28:27,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:28:27,429 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:28:27,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:28:27,720 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:28:27,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:27 WrapperNode [2020-09-21 12:28:27,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:28:27,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:28:27,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:28:27,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:28:27,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:27" (1/1) ... [2020-09-21 12:28:27,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:27" (1/1) ... [2020-09-21 12:28:27,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:27" (1/1) ... [2020-09-21 12:28:27,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:27" (1/1) ... [2020-09-21 12:28:27,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:27" (1/1) ... [2020-09-21 12:28:27,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:27" (1/1) ... [2020-09-21 12:28:27,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:27" (1/1) ... [2020-09-21 12:28:27,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:28:27,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:28:27,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:28:27,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:28:27,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:27" (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 12:28:27,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:28:27,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:28:27,943 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-21 12:28:27,943 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:28:27,943 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-21 12:28:27,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:28:27,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:28:27,944 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 12:28:27,946 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:28:27,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:28:27,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:28:29,243 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:28:29,243 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 12:28:29,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:28:29 BoogieIcfgContainer [2020-09-21 12:28:29,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:28:29,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:28:29,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:28:29,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:28:29,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:28:26" (1/3) ... [2020-09-21 12:28:29,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b6419a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:28:29, skipping insertion in model container [2020-09-21 12:28:29,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:27" (2/3) ... [2020-09-21 12:28:29,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b6419a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:28:29, skipping insertion in model container [2020-09-21 12:28:29,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:28:29" (3/3) ... [2020-09-21 12:28:29,262 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label46.c [2020-09-21 12:28:29,276 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:28:29,287 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:28:29,310 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:28:29,345 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:28:29,345 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:28:29,346 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:28:29,346 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:28:29,346 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:28:29,346 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:28:29,346 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:28:29,346 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:28:29,376 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-09-21 12:28:29,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-09-21 12:28:29,391 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:28:29,393 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:28:29,393 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:28:29,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:28:29,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1447421978, now seen corresponding path program 1 times [2020-09-21 12:28:29,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:28:29,414 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [342334294] [2020-09-21 12:28:29,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:28:29,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:29,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:30,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:30,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:30,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-09-21 12:28:30,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:28:30,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:28:30,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:30,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:28:30,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:28:30,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-09-21 12:28:30,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 12:28:31,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:28:31,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:31,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:31,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:31,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:28:31,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:31,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:28:31,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:31,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:28:31,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:31,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:28:31,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:31,092 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 12:28:31,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [342334294] [2020-09-21 12:28:31,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:28:31,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:28:31,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748937227] [2020-09-21 12:28:31,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:28:31,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:28:31,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:28:31,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:28:31,129 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 4 states. [2020-09-21 12:28:32,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:28:32,675 INFO L93 Difference]: Finished difference Result 557 states and 956 transitions. [2020-09-21 12:28:32,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:28:32,679 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 118 [2020-09-21 12:28:32,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:28:32,712 INFO L225 Difference]: With dead ends: 557 [2020-09-21 12:28:32,713 INFO L226 Difference]: Without dead ends: 286 [2020-09-21 12:28:32,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:28:32,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-09-21 12:28:32,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2020-09-21 12:28:32,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-09-21 12:28:32,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 408 transitions. [2020-09-21 12:28:32,811 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 408 transitions. Word has length 118 [2020-09-21 12:28:32,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:28:32,812 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 408 transitions. [2020-09-21 12:28:32,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:28:32,813 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 408 transitions. [2020-09-21 12:28:32,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-09-21 12:28:32,818 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:28:32,818 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:28:32,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:28:32,819 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:28:32,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:28:32,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1793818301, now seen corresponding path program 1 times [2020-09-21 12:28:32,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:28:32,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [489819822] [2020-09-21 12:28:32,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:28:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:32,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:33,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:33,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:33,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 12:28:33,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:28:33,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1038 [2020-09-21 12:28:33,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:33,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:28:33,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:28:33,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 12:28:33,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:33,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:28:33,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:33,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:34,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:34,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:28:34,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:34,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:28:34,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:34,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:28:34,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:34,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:28:34,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:28:34,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:28:34,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:34,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:34,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:34,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:28:34,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:34,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-21 12:28:34,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:34,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:34,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:28:34,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 12:28:34,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:34,103 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:28:34,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [489819822] [2020-09-21 12:28:34,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:28:34,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 12:28:34,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694912393] [2020-09-21 12:28:34,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:28:34,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:28:34,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:28:34,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:28:34,108 INFO L87 Difference]: Start difference. First operand 280 states and 408 transitions. Second operand 7 states. [2020-09-21 12:28:35,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:28:35,563 INFO L93 Difference]: Finished difference Result 856 states and 1278 transitions. [2020-09-21 12:28:35,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:28:35,565 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 127 [2020-09-21 12:28:35,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:28:35,571 INFO L225 Difference]: With dead ends: 856 [2020-09-21 12:28:35,571 INFO L226 Difference]: Without dead ends: 582 [2020-09-21 12:28:35,573 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-21 12:28:35,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2020-09-21 12:28:35,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 560. [2020-09-21 12:28:35,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-09-21 12:28:35,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 789 transitions. [2020-09-21 12:28:35,640 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 789 transitions. Word has length 127 [2020-09-21 12:28:35,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:28:35,640 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 789 transitions. [2020-09-21 12:28:35,641 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:28:35,641 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 789 transitions. [2020-09-21 12:28:35,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-09-21 12:28:35,647 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:28:35,647 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:28:35,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:28:35,648 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:28:35,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:28:35,648 INFO L82 PathProgramCache]: Analyzing trace with hash 985381706, now seen corresponding path program 1 times [2020-09-21 12:28:35,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:28:35,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [765581090] [2020-09-21 12:28:35,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:28:35,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:35,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:35,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:36,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:36,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:36,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-21 12:28:36,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:28:36,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1008 [2020-09-21 12:28:36,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:36,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:36,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 12:28:36,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 12:28:36,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:36,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:28:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:36,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:36,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:36,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:28:36,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:36,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:28:36,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:36,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:36,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:36,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:36,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:28:36,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:28:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:36,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:36,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:36,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 12:28:36,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:36,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:28:36,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:36,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:28:36,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:36,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:28:36,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:36,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 12:28:36,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:36,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:36,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:36,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:28:36,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:36,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-21 12:28:36,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:36,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:36,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:28:36,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 12:28:36,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:36,986 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 12:28:36,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [765581090] [2020-09-21 12:28:36,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:28:36,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:28:36,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219562762] [2020-09-21 12:28:36,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:28:36,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:28:36,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:28:36,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:28:36,990 INFO L87 Difference]: Start difference. First operand 560 states and 789 transitions. Second operand 7 states. [2020-09-21 12:28:38,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:28:38,539 INFO L93 Difference]: Finished difference Result 1420 states and 2073 transitions. [2020-09-21 12:28:38,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 12:28:38,543 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 138 [2020-09-21 12:28:38,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:28:38,560 INFO L225 Difference]: With dead ends: 1420 [2020-09-21 12:28:38,560 INFO L226 Difference]: Without dead ends: 866 [2020-09-21 12:28:38,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-09-21 12:28:38,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2020-09-21 12:28:38,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 838. [2020-09-21 12:28:38,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-09-21 12:28:38,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1172 transitions. [2020-09-21 12:28:38,641 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1172 transitions. Word has length 138 [2020-09-21 12:28:38,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:28:38,642 INFO L479 AbstractCegarLoop]: Abstraction has 838 states and 1172 transitions. [2020-09-21 12:28:38,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:28:38,642 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1172 transitions. [2020-09-21 12:28:38,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-09-21 12:28:38,653 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:28:38,657 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:28:38,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:28:38,658 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:28:38,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:28:38,659 INFO L82 PathProgramCache]: Analyzing trace with hash 76352751, now seen corresponding path program 1 times [2020-09-21 12:28:38,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:28:38,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [674987502] [2020-09-21 12:28:38,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:28:38,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:38,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:38,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:38,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:39,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:39,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-09-21 12:28:39,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:28:39,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:28:39,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:39,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:39,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-21 12:28:39,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-21 12:28:39,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:28:39,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:28:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:39,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:39,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:39,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:28:39,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:39,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:28:39,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:39,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:39,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:39,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:39,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:39,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:28:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:39,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:39,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:39,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-21 12:28:39,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:39,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-21 12:28:39,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:39,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:28:39,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:39,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 12:28:39,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:39,983 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:28:39,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [674987502] [2020-09-21 12:28:39,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:28:39,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 12:28:39,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399499559] [2020-09-21 12:28:39,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:28:39,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:28:39,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:28:39,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:28:39,988 INFO L87 Difference]: Start difference. First operand 838 states and 1172 transitions. Second operand 5 states. [2020-09-21 12:28:41,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:28:41,080 INFO L93 Difference]: Finished difference Result 1261 states and 1765 transitions. [2020-09-21 12:28:41,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:28:41,082 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 137 [2020-09-21 12:28:41,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:28:41,094 INFO L225 Difference]: With dead ends: 1261 [2020-09-21 12:28:41,094 INFO L226 Difference]: Without dead ends: 1259 [2020-09-21 12:28:41,095 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 12:28:41,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2020-09-21 12:28:41,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1251. [2020-09-21 12:28:41,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1251 states. [2020-09-21 12:28:41,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1251 states to 1251 states and 1740 transitions. [2020-09-21 12:28:41,155 INFO L78 Accepts]: Start accepts. Automaton has 1251 states and 1740 transitions. Word has length 137 [2020-09-21 12:28:41,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:28:41,158 INFO L479 AbstractCegarLoop]: Abstraction has 1251 states and 1740 transitions. [2020-09-21 12:28:41,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:28:41,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1251 states and 1740 transitions. [2020-09-21 12:28:41,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-21 12:28:41,170 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:28:41,170 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:28:41,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:28:41,171 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:28:41,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:28:41,171 INFO L82 PathProgramCache]: Analyzing trace with hash 820217782, now seen corresponding path program 1 times [2020-09-21 12:28:41,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:28:41,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1470189729] [2020-09-21 12:28:41,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:28:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:41,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:41,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:41,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:42,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:42,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-09-21 12:28:42,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:28:42,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:28:42,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:42,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:42,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-21 12:28:42,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-21 12:28:42,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:42,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:28:42,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:42,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:42,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:42,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:28:42,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:42,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:28:42,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:42,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:42,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:42,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:42,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:28:42,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:28:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:42,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:42,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:42,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:28:42,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:42,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-21 12:28:42,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:42,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:28:42,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:42,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 12:28:42,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 33 [2020-09-21 12:28:42,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:28:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:42,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:42,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:42,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-21 12:28:42,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:42,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-21 12:28:42,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:42,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:42,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:28:42,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:28:42,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-21 12:28:42,667 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 12:28:42,668 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1470189729] [2020-09-21 12:28:42,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:28:42,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:28:42,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399958783] [2020-09-21 12:28:42,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:28:42,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:28:42,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:28:42,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:28:42,670 INFO L87 Difference]: Start difference. First operand 1251 states and 1740 transitions. Second operand 7 states. [2020-09-21 12:28:44,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:28:44,410 INFO L93 Difference]: Finished difference Result 3219 states and 4584 transitions. [2020-09-21 12:28:44,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 12:28:44,412 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 156 [2020-09-21 12:28:44,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:28:44,434 INFO L225 Difference]: With dead ends: 3219 [2020-09-21 12:28:44,434 INFO L226 Difference]: Without dead ends: 1974 [2020-09-21 12:28:44,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-09-21 12:28:44,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2020-09-21 12:28:44,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1545. [2020-09-21 12:28:44,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1545 states. [2020-09-21 12:28:44,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 2016 transitions. [2020-09-21 12:28:44,504 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 2016 transitions. Word has length 156 [2020-09-21 12:28:44,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:28:44,504 INFO L479 AbstractCegarLoop]: Abstraction has 1545 states and 2016 transitions. [2020-09-21 12:28:44,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:28:44,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 2016 transitions. [2020-09-21 12:28:44,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-21 12:28:44,511 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:28:44,511 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:28:44,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:28:44,512 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:28:44,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:28:44,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1460190614, now seen corresponding path program 1 times [2020-09-21 12:28:44,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:28:44,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1133518804] [2020-09-21 12:28:44,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:28:44,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:44,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:44,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:44,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:45,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:45,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-21 12:28:45,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:28:45,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1023 [2020-09-21 12:28:45,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:45,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:45,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 12:28:45,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 12:28:45,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:28:45,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:28:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:45,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:45,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:45,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:28:45,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:45,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:28:45,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:45,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:45,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:45,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:45,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:45,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:28:45,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:45,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:45,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:45,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 12:28:45,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:45,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 12:28:45,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:45,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:28:45,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:45,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:28:45,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:45,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 12:28:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:45,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:45,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:45,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:28:45,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:45,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-21 12:28:45,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:45,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:45,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:28:45,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 12:28:45,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:28:45,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 12:28:45,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:45,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:45,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:45,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 12:28:45,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:45,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-21 12:28:45,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:45,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:45,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 12:28:45,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:45,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:45,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-21 12:28:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:45,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:45,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:45,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-21 12:28:45,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:45,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 12:28:45,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:45,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:45,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 12:28:45,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:45,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:28:46,053 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 82 proven. 26 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-09-21 12:28:46,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1133518804] [2020-09-21 12:28:46,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:28:46,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:28:46,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644210015] [2020-09-21 12:28:46,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:28:46,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:28:46,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:28:46,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:28:46,057 INFO L87 Difference]: Start difference. First operand 1545 states and 2016 transitions. Second operand 7 states. [2020-09-21 12:28:47,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:28:47,867 INFO L93 Difference]: Finished difference Result 3412 states and 4544 transitions. [2020-09-21 12:28:47,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 12:28:47,868 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 196 [2020-09-21 12:28:47,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:28:47,883 INFO L225 Difference]: With dead ends: 3412 [2020-09-21 12:28:47,883 INFO L226 Difference]: Without dead ends: 1873 [2020-09-21 12:28:47,890 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 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 12:28:47,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1873 states. [2020-09-21 12:28:47,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1873 to 1837. [2020-09-21 12:28:47,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1837 states. [2020-09-21 12:28:47,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1837 states to 1837 states and 2378 transitions. [2020-09-21 12:28:47,983 INFO L78 Accepts]: Start accepts. Automaton has 1837 states and 2378 transitions. Word has length 196 [2020-09-21 12:28:47,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:28:47,983 INFO L479 AbstractCegarLoop]: Abstraction has 1837 states and 2378 transitions. [2020-09-21 12:28:47,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:28:47,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1837 states and 2378 transitions. [2020-09-21 12:28:47,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-09-21 12:28:47,992 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:28:47,992 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:28:47,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:28:47,993 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:28:47,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:28:47,993 INFO L82 PathProgramCache]: Analyzing trace with hash -263783725, now seen corresponding path program 1 times [2020-09-21 12:28:47,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:28:47,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [785091773] [2020-09-21 12:28:47,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:28:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:48,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:48,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:48,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:48,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:49,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:49,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-09-21 12:28:49,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:28:49,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1028 [2020-09-21 12:28:49,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:49,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:49,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 91 [2020-09-21 12:28:49,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-21 12:28:49,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:49,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:28:49,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:49,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:49,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:49,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:28:49,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:49,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:28:49,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:49,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:49,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:49,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:49,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:49,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:28:49,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:49,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:49,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:49,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 12:28:49,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:49,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:28:49,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:49,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:49,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:49,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:49,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:49,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 12:28:49,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:49,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:49,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:49,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-21 12:28:49,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:49,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:28:49,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:49,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:49,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:49,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:49,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:49,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 12:28:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:49,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:49,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:49,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:28:49,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:49,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 12:28:49,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:49,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:49,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:49,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:49,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:49,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 12:28:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:49,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:49,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:49,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 12:28:49,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:49,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-21 12:28:49,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:49,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:28:49,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:49,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:28:49,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:49,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-09-21 12:28:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:49,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:49,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:49,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-21 12:28:49,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:49,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-21 12:28:49,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:49,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:49,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:28:49,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:28:49,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:49,490 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-09-21 12:28:49,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [785091773] [2020-09-21 12:28:49,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:28:49,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:28:49,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077038200] [2020-09-21 12:28:49,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:28:49,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:28:49,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:28:49,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:28:49,493 INFO L87 Difference]: Start difference. First operand 1837 states and 2378 transitions. Second operand 7 states. [2020-09-21 12:28:52,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:28:52,022 INFO L93 Difference]: Finished difference Result 4276 states and 5742 transitions. [2020-09-21 12:28:52,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 12:28:52,023 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 215 [2020-09-21 12:28:52,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:28:52,036 INFO L225 Difference]: With dead ends: 4276 [2020-09-21 12:28:52,036 INFO L226 Difference]: Without dead ends: 2445 [2020-09-21 12:28:52,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:28:52,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2445 states. [2020-09-21 12:28:52,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2445 to 2407. [2020-09-21 12:28:52,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2407 states. [2020-09-21 12:28:52,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 3064 transitions. [2020-09-21 12:28:52,117 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 3064 transitions. Word has length 215 [2020-09-21 12:28:52,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:28:52,118 INFO L479 AbstractCegarLoop]: Abstraction has 2407 states and 3064 transitions. [2020-09-21 12:28:52,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:28:52,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 3064 transitions. [2020-09-21 12:28:52,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-21 12:28:52,127 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:28:52,128 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:28:52,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 12:28:52,128 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:28:52,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:28:52,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1763153403, now seen corresponding path program 1 times [2020-09-21 12:28:52,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:28:52,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669182392] [2020-09-21 12:28:52,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:28:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:52,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:52,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:52,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:53,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:53,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-09-21 12:28:53,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:28:53,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1020 [2020-09-21 12:28:53,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:53,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:53,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 12:28:53,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 12:28:53,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:53,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:28:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:53,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:53,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:53,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:28:53,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:53,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:28:53,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:53,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:53,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:53,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:53,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:53,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:28:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:53,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:53,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:53,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 12:28:53,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:53,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:28:53,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:53,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:53,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:53,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:53,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:53,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 12:28:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:53,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:53,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:53,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-21 12:28:53,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:53,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 12:28:53,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:53,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:28:53,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:53,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 12:28:53,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:53,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 12:28:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:53,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:53,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:53,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:28:53,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:53,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-21 12:28:53,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:53,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:53,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:28:53,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 12:28:53,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:53,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 12:28:53,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:53,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:53,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:53,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-21 12:28:53,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:53,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-21 12:28:53,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:53,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:53,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-21 12:28:53,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:53,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:53,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-21 12:28:53,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:53,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:53,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:53,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-21 12:28:53,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:53,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 12:28:53,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:53,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:53,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 12:28:53,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:53,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:53,715 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 143 proven. 26 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-09-21 12:28:53,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669182392] [2020-09-21 12:28:53,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:28:53,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:28:53,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780732370] [2020-09-21 12:28:53,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:28:53,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:28:53,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:28:53,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:28:53,718 INFO L87 Difference]: Start difference. First operand 2407 states and 3064 transitions. Second operand 7 states. [2020-09-21 12:28:56,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:28:56,031 INFO L93 Difference]: Finished difference Result 5781 states and 7450 transitions. [2020-09-21 12:28:56,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:28:56,032 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 235 [2020-09-21 12:28:56,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:28:56,032 INFO L225 Difference]: With dead ends: 5781 [2020-09-21 12:28:56,033 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 12:28:56,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-21 12:28:56,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 12:28:56,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 12:28:56,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 12:28:56,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 12:28:56,045 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 235 [2020-09-21 12:28:56,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:28:56,045 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 12:28:56,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:28:56,045 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 12:28:56,045 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 12:28:56,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 12:28:56,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 12:28:57,793 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 152 [2020-09-21 12:28:58,246 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 152 [2020-09-21 12:28:58,829 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 49 [2020-09-21 12:28:59,330 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 39 [2020-09-21 12:28:59,800 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 39 [2020-09-21 12:28:59,805 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 12:28:59,806 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-09-21 12:28:59,806 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 12:28:59,806 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-09-21 12:28:59,806 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-09-21 12:28:59,807 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,807 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,807 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,807 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,807 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,807 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,807 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-09-21 12:28:59,808 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-09-21 12:28:59,808 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-09-21 12:28:59,808 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-09-21 12:28:59,808 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-09-21 12:28:59,808 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-09-21 12:28:59,809 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-09-21 12:28:59,809 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-09-21 12:28:59,809 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-09-21 12:28:59,809 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-09-21 12:28:59,809 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,809 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,809 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,810 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,810 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,810 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,810 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-09-21 12:28:59,810 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-09-21 12:28:59,810 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-09-21 12:28:59,810 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-09-21 12:28:59,810 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-09-21 12:28:59,811 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-09-21 12:28:59,811 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-09-21 12:28:59,811 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-09-21 12:28:59,811 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-09-21 12:28:59,811 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-09-21 12:28:59,811 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-09-21 12:28:59,811 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 512) no Hoare annotation was computed. [2020-09-21 12:28:59,812 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-09-21 12:28:59,812 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-09-21 12:28:59,812 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-09-21 12:28:59,812 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-09-21 12:28:59,812 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,812 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,812 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,813 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,813 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,813 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-09-21 12:28:59,813 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-09-21 12:28:59,813 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-09-21 12:28:59,813 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-09-21 12:28:59,813 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-09-21 12:28:59,813 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-09-21 12:28:59,814 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-09-21 12:28:59,814 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-09-21 12:28:59,814 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-09-21 12:28:59,814 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,815 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,815 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,815 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,815 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,815 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-09-21 12:28:59,816 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-09-21 12:28:59,816 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-09-21 12:28:59,816 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-09-21 12:28:59,817 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-09-21 12:28:59,818 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-09-21 12:28:59,818 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-09-21 12:28:59,818 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-09-21 12:28:59,818 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-09-21 12:28:59,818 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-09-21 12:28:59,818 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-09-21 12:28:59,818 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-09-21 12:28:59,818 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-09-21 12:28:59,819 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,819 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,819 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,819 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,819 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,819 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-09-21 12:28:59,819 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-09-21 12:28:59,819 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-09-21 12:28:59,820 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-09-21 12:28:59,820 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-09-21 12:28:59,820 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-09-21 12:28:59,820 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-09-21 12:28:59,820 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-09-21 12:28:59,820 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-09-21 12:28:59,820 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,820 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,820 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,821 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,821 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,821 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,821 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-09-21 12:28:59,821 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,821 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-09-21 12:28:59,821 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-09-21 12:28:59,821 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-09-21 12:28:59,822 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-09-21 12:28:59,822 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-09-21 12:28:59,822 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-09-21 12:28:59,822 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-09-21 12:28:59,822 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-09-21 12:28:59,822 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-09-21 12:28:59,822 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-09-21 12:28:59,822 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-09-21 12:28:59,822 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-09-21 12:28:59,823 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-09-21 12:28:59,823 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,823 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,823 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,823 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,823 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,823 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-09-21 12:28:59,823 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-09-21 12:28:59,824 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-09-21 12:28:59,824 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-09-21 12:28:59,824 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-09-21 12:28:59,824 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-09-21 12:28:59,824 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-09-21 12:28:59,824 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-09-21 12:28:59,824 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,825 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,825 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,825 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,826 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,826 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-09-21 12:28:59,826 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-09-21 12:28:59,826 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-09-21 12:28:59,826 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-09-21 12:28:59,826 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-09-21 12:28:59,826 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-09-21 12:28:59,826 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-09-21 12:28:59,827 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-09-21 12:28:59,827 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-09-21 12:28:59,827 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-09-21 12:28:59,827 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse3 (= ~a17~0 |old(~a17~0)|)) (.cse2 (= ~a7~0 |old(~a7~0)|)) (.cse4 (= ~a20~0 |old(~a20~0)|)) (.cse5 (= ~a16~0 |old(~a16~0)|)) (.cse6 (= ~a8~0 |old(~a8~0)|))) (let ((.cse0 (and .cse3 .cse2 (= ~a21~0 |old(~a21~0)|) .cse4 .cse5 .cse6)) (.cse1 (not (= |old(~a21~0)| 1)))) (and (or (not (<= |old(~a16~0)| 5)) .cse0) (or (not (<= 15 |old(~a8~0)|)) .cse0 .cse1) (or .cse0 (not (<= |old(~a17~0)| 0)) (not (<= 1 |old(~a20~0)|)) (not (<= |old(~a20~0)| 1))) (or (not (<= |old(~a7~0)| 0)) (not (<= 1 |old(~a17~0)|)) (not (<= |old(~a17~0)| 1)) (and .cse2 .cse3 (= ~a21~0 1) .cse4 .cse5 .cse6) .cse1)))) [2020-09-21 12:28:59,827 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-09-21 12:28:59,827 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,828 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,828 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,828 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,828 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-09-21 12:28:59,828 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,828 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,828 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-09-21 12:28:59,828 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-09-21 12:28:59,829 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-09-21 12:28:59,829 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-09-21 12:28:59,829 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-09-21 12:28:59,829 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-09-21 12:28:59,829 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-09-21 12:28:59,829 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-09-21 12:28:59,829 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-09-21 12:28:59,829 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-09-21 12:28:59,829 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-09-21 12:28:59,830 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-09-21 12:28:59,830 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,830 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,830 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,830 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,830 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,830 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-09-21 12:28:59,830 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,830 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-09-21 12:28:59,831 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-09-21 12:28:59,831 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-09-21 12:28:59,831 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-09-21 12:28:59,831 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-09-21 12:28:59,831 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-09-21 12:28:59,831 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-09-21 12:28:59,831 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-09-21 12:28:59,831 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-09-21 12:28:59,831 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-09-21 12:28:59,832 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-09-21 12:28:59,832 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-09-21 12:28:59,832 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-09-21 12:28:59,832 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-09-21 12:28:59,832 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,832 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,832 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,832 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,833 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,833 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:59,833 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-09-21 12:28:59,833 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-09-21 12:28:59,833 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-09-21 12:28:59,833 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-09-21 12:28:59,833 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-09-21 12:28:59,833 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-09-21 12:28:59,833 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-09-21 12:28:59,834 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-09-21 12:28:59,834 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-09-21 12:28:59,834 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-09-21 12:28:59,834 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 12:28:59,834 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (<= ~a16~0 5) (<= ~a7~0 0) (<= 5 ~a16~0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-09-21 12:28:59,834 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 12:28:59,834 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 12:28:59,835 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= 5 |old(~a16~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (<= 1 |old(~a17~0)|)) (not (<= |old(~a17~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|)) (not (= |old(~a21~0)| 1))) [2020-09-21 12:28:59,835 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-09-21 12:28:59,835 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1))) (or (and (<= 1 ~a20~0) (<= ~a17~0 0) (<= ~a20~0 1)) (not (<= 5 |old(~a16~0)|)) (not (= |old(~a17~0)| 1)) (and .cse0 (<= 15 ~a8~0)) (not (<= |old(~a7~0)| 0)) (<= ~a16~0 5) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a21~0)| 1)) (and .cse0 (<= ~a7~0 0) (= ~a17~0 1)))) [2020-09-21 12:28:59,835 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-09-21 12:28:59,835 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-09-21 12:28:59,835 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1))) (or (and (<= 1 ~a20~0) (<= ~a17~0 0) (<= ~a20~0 1)) (not (<= 5 |old(~a16~0)|)) (not (= |old(~a17~0)| 1)) (and .cse0 (<= 15 ~a8~0)) (not (<= |old(~a7~0)| 0)) (<= ~a16~0 5) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a21~0)| 1)) (and .cse0 (<= ~a7~0 0) (= ~a17~0 1)))) [2020-09-21 12:28:59,836 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-09-21 12:28:59,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:28:59 BoogieIcfgContainer [2020-09-21 12:28:59,863 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 12:28:59,870 INFO L168 Benchmark]: Toolchain (without parser) took 32954.43 ms. Allocated memory was 147.8 MB in the beginning and 582.0 MB in the end (delta: 434.1 MB). Free memory was 101.2 MB in the beginning and 167.5 MB in the end (delta: -66.3 MB). Peak memory consumption was 451.2 MB. Max. memory is 7.1 GB. [2020-09-21 12:28:59,871 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 147.8 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 12:28:59,873 INFO L168 Benchmark]: CACSL2BoogieTranslator took 804.49 ms. Allocated memory was 147.8 MB in the beginning and 207.6 MB in the end (delta: 59.8 MB). Free memory was 100.6 MB in the beginning and 173.7 MB in the end (delta: -73.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 7.1 GB. [2020-09-21 12:28:59,873 INFO L168 Benchmark]: Boogie Preprocessor took 110.64 ms. Allocated memory is still 207.6 MB. Free memory was 173.7 MB in the beginning and 168.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-09-21 12:28:59,877 INFO L168 Benchmark]: RCFGBuilder took 1418.51 ms. Allocated memory was 207.6 MB in the beginning and 237.0 MB in the end (delta: 29.4 MB). Free memory was 168.9 MB in the beginning and 178.0 MB in the end (delta: -9.1 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. [2020-09-21 12:28:59,879 INFO L168 Benchmark]: TraceAbstraction took 30610.63 ms. Allocated memory was 237.0 MB in the beginning and 582.0 MB in the end (delta: 345.0 MB). Free memory was 176.6 MB in the beginning and 167.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 437.4 MB. Max. memory is 7.1 GB. [2020-09-21 12:28:59,888 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 147.8 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 804.49 ms. Allocated memory was 147.8 MB in the beginning and 207.6 MB in the end (delta: 59.8 MB). Free memory was 100.6 MB in the beginning and 173.7 MB in the end (delta: -73.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.64 ms. Allocated memory is still 207.6 MB. Free memory was 173.7 MB in the beginning and 168.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1418.51 ms. Allocated memory was 207.6 MB in the beginning and 237.0 MB in the end (delta: 29.4 MB). Free memory was 168.9 MB in the beginning and 178.0 MB in the end (delta: -9.1 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30610.63 ms. Allocated memory was 237.0 MB in the beginning and 582.0 MB in the end (delta: 345.0 MB). Free memory was 176.6 MB in the beginning and 167.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 437.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 512]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((((((1 <= a20 && a17 <= 0) && a20 <= 1) || !(5 <= \old(a16))) || !(\old(a17) == 1)) || (a21 == 1 && 15 <= a8)) || !(\old(a7) <= 0)) || a16 <= 5) || !(\old(a16) <= 5)) || !(15 <= \old(a8))) || !(\old(a21) == 1)) || ((a21 == 1 && a7 <= 0) && a17 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 26.7s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 14.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 228 SDtfs, 3253 SDslu, 283 SDs, 0 SdLazy, 7003 SolverSat, 1103 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 142 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2407occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 567 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 88 PreInvPairs, 140 NumberOfFragments, 357 HoareAnnotationTreeSize, 88 FomulaSimplifications, 132598 FormulaSimplificationTreeSizeReduction, 2.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 24509 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 10.8s InterpolantComputationTime, 1322 NumberOfCodeBlocks, 1322 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1314 ConstructedInterpolants, 0 QuantifiedInterpolants, 580802 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 669/728 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...