/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_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:27:54,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:27:54,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:27:54,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:27:54,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:27:54,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:27:54,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:27:54,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:27:54,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:27:54,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:27:54,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:27:54,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:27:54,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:27:54,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:27:54,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:27:54,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:27:54,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:27:54,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:27:54,359 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:27:54,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:27:54,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:27:54,364 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:27:54,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:27:54,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:27:54,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:27:54,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:27:54,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:27:54,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:27:54,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:27:54,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:27:54,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:27:54,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:27:54,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:27:54,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:27:54,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:27:54,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:27:54,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:27:54,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:27:54,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:27:54,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:27:54,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:27:54,380 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 12:27:54,406 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:27:54,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:27:54,408 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:27:54,408 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:27:54,408 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:27:54,409 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:27:54,409 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:27:54,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:27:54,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:27:54,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:27:54,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:27:54,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:27:54,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:27:54,410 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:27:54,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:27:54,410 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:27:54,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:27:54,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:27:54,411 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:27:54,411 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:27:54,411 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:27:54,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:27:54,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:27:54,412 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:27:54,412 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:27:54,412 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:27:54,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:27:54,413 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:27:54,413 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:27:54,413 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 12:27:54,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:27:54,917 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:27:54,924 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:27:54,925 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:27:54,927 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:27:54,929 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label26.c [2020-09-21 12:27:55,017 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51320e228/ea8606e0840c4a248f8afbf92bc1ef25/FLAGea71842d0 [2020-09-21 12:27:55,770 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:27:55,771 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label26.c [2020-09-21 12:27:55,785 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51320e228/ea8606e0840c4a248f8afbf92bc1ef25/FLAGea71842d0 [2020-09-21 12:27:55,977 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51320e228/ea8606e0840c4a248f8afbf92bc1ef25 [2020-09-21 12:27:55,991 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:27:55,998 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:27:55,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:27:55,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:27:56,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:27:56,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:27:55" (1/1) ... [2020-09-21 12:27:56,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cd1f025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:27:56, skipping insertion in model container [2020-09-21 12:27:56,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:27:55" (1/1) ... [2020-09-21 12:27:56,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:27:56,077 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:27:56,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:27:56,512 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:27:56,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:27:56,837 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:27:56,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:27:56 WrapperNode [2020-09-21 12:27:56,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:27:56,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:27:56,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:27:56,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:27:56,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:27:56" (1/1) ... [2020-09-21 12:27:56,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:27:56" (1/1) ... [2020-09-21 12:27:56,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:27:56" (1/1) ... [2020-09-21 12:27:56,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:27:56" (1/1) ... [2020-09-21 12:27:56,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:27:56" (1/1) ... [2020-09-21 12:27:56,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:27:56" (1/1) ... [2020-09-21 12:27:56,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:27:56" (1/1) ... [2020-09-21 12:27:56,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:27:56,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:27:56,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:27:56,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:27:56,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:27:56" (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 12:27:57,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:27:57,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:27:57,089 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-21 12:27:57,089 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:27:57,089 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-21 12:27:57,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:27:57,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:27:57,091 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 12:27:57,092 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:27:57,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:27:57,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:27:58,388 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:27:58,388 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 12:27:58,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:27:58 BoogieIcfgContainer [2020-09-21 12:27:58,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:27:58,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:27:58,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:27:58,412 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:27:58,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:27:55" (1/3) ... [2020-09-21 12:27:58,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a13fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:27:58, skipping insertion in model container [2020-09-21 12:27:58,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:27:56" (2/3) ... [2020-09-21 12:27:58,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a13fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:27:58, skipping insertion in model container [2020-09-21 12:27:58,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:27:58" (3/3) ... [2020-09-21 12:27:58,418 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label26.c [2020-09-21 12:27:58,431 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:27:58,448 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:27:58,472 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:27:58,518 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:27:58,519 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:27:58,519 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:27:58,519 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:27:58,520 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:27:58,520 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:27:58,520 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:27:58,520 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:27:58,554 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-09-21 12:27:58,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-09-21 12:27:58,579 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:27:58,581 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] [2020-09-21 12:27:58,581 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:27:58,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:27:58,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1414431897, now seen corresponding path program 1 times [2020-09-21 12:27:58,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:27:58,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [548802095] [2020-09-21 12:27:58,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:27:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:27:59,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:59,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:27:59,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:27:59,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-21 12:27:59,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:27:59,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1010 [2020-09-21 12:28:00,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:00,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:28:00,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:28:00,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-21 12:28:00,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 12:28:00,292 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-09-21 12:28:00,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:28:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:00,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:00,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:00,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:28:00,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:00,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 12:28:00,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:00,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:28:00,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:00,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:28:00,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:00,371 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 12:28:00,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [548802095] [2020-09-21 12:28:00,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:28:00,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:28:00,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594406193] [2020-09-21 12:28:00,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:28:00,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:28:00,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:28:00,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:28:00,409 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 4 states. [2020-09-21 12:28:01,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:28:01,966 INFO L93 Difference]: Finished difference Result 557 states and 956 transitions. [2020-09-21 12:28:01,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:28:01,970 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 109 [2020-09-21 12:28:01,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:28:01,990 INFO L225 Difference]: With dead ends: 557 [2020-09-21 12:28:01,990 INFO L226 Difference]: Without dead ends: 286 [2020-09-21 12:28:01,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:28:02,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-09-21 12:28:02,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2020-09-21 12:28:02,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-09-21 12:28:02,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 396 transitions. [2020-09-21 12:28:02,093 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 396 transitions. Word has length 109 [2020-09-21 12:28:02,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:28:02,094 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 396 transitions. [2020-09-21 12:28:02,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:28:02,094 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 396 transitions. [2020-09-21 12:28:02,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-09-21 12:28:02,100 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:28:02,100 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] [2020-09-21 12:28:02,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:28:02,101 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:28:02,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:28:02,101 INFO L82 PathProgramCache]: Analyzing trace with hash -253581974, now seen corresponding path program 1 times [2020-09-21 12:28:02,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:28:02,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1041663752] [2020-09-21 12:28:02,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:28:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:02,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:02,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:03,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:03,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-21 12:28:03,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:28:03,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1033 [2020-09-21 12:28:03,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:03,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:28:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:28:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 12:28:03,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:28:03,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:28:03,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:03,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:03,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:03,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:28:03,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:03,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:28:03,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:03,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:28:03,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:03,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:28:03,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-21 12:28:03,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:28:03,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:03,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:03,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:03,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:28:03,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:03,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-21 12:28:03,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:03,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:03,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:28:03,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 12:28:03,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:28:03,440 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 12:28:03,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1041663752] [2020-09-21 12:28:03,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:28:03,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 12:28:03,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028549117] [2020-09-21 12:28:03,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:28:03,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:28:03,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:28:03,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:28:03,473 INFO L87 Difference]: Start difference. First operand 280 states and 396 transitions. Second operand 7 states. [2020-09-21 12:28:05,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:28:05,019 INFO L93 Difference]: Finished difference Result 858 states and 1247 transitions. [2020-09-21 12:28:05,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 12:28:05,021 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2020-09-21 12:28:05,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:28:05,027 INFO L225 Difference]: With dead ends: 858 [2020-09-21 12:28:05,028 INFO L226 Difference]: Without dead ends: 584 [2020-09-21 12:28:05,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:28:05,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2020-09-21 12:28:05,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 560. [2020-09-21 12:28:05,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-09-21 12:28:05,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 764 transitions. [2020-09-21 12:28:05,083 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 764 transitions. Word has length 118 [2020-09-21 12:28:05,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:28:05,083 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 764 transitions. [2020-09-21 12:28:05,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:28:05,083 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 764 transitions. [2020-09-21 12:28:05,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-21 12:28:05,089 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:28:05,089 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2020-09-21 12:28:05,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:28:05,090 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:28:05,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:28:05,090 INFO L82 PathProgramCache]: Analyzing trace with hash -589511735, now seen corresponding path program 1 times [2020-09-21 12:28:05,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:28:05,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [542833748] [2020-09-21 12:28:05,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:28:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:05,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:05,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:05,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:06,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:06,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-21 12:28:06,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:28:06,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1019 [2020-09-21 12:28:06,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:06,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:06,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-21 12:28:06,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 12:28:06,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:28:06,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:28:06,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:06,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:06,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:06,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:28:06,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:06,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:28:06,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:06,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:06,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:06,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:06,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:06,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:28:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:06,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:06,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:06,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 12:28:06,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:06,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:28:06,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:06,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:28:06,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:06,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:28:06,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:06,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:28:06,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:06,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:06,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:06,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:28:06,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:06,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-21 12:28:06,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:06,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:06,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:28:06,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 12:28:06,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:28:06,468 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 12:28:06,469 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [542833748] [2020-09-21 12:28:06,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:28:06,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 12:28:06,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167918024] [2020-09-21 12:28:06,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:28:06,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:28:06,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:28:06,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:28:06,472 INFO L87 Difference]: Start difference. First operand 560 states and 764 transitions. Second operand 8 states. [2020-09-21 12:28:08,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:28:08,833 INFO L93 Difference]: Finished difference Result 2278 states and 3332 transitions. [2020-09-21 12:28:08,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 12:28:08,833 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 132 [2020-09-21 12:28:08,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:28:08,847 INFO L225 Difference]: With dead ends: 2278 [2020-09-21 12:28:08,847 INFO L226 Difference]: Without dead ends: 1724 [2020-09-21 12:28:08,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-09-21 12:28:08,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1724 states. [2020-09-21 12:28:08,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1724 to 1696. [2020-09-21 12:28:08,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1696 states. [2020-09-21 12:28:08,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1696 states to 1696 states and 2292 transitions. [2020-09-21 12:28:08,983 INFO L78 Accepts]: Start accepts. Automaton has 1696 states and 2292 transitions. Word has length 132 [2020-09-21 12:28:08,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:28:08,986 INFO L479 AbstractCegarLoop]: Abstraction has 1696 states and 2292 transitions. [2020-09-21 12:28:08,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:28:08,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1696 states and 2292 transitions. [2020-09-21 12:28:09,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-09-21 12:28:09,012 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:28:09,012 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 12:28:09,012 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:28:09,013 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:28:09,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:28:09,014 INFO L82 PathProgramCache]: Analyzing trace with hash -492171497, now seen corresponding path program 1 times [2020-09-21 12:28:09,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:28:09,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [881438141] [2020-09-21 12:28:09,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:28:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:09,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:09,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:09,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:10,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:10,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-09-21 12:28:10,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:28:10,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1031 [2020-09-21 12:28:10,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:10,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:10,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 12:28:10,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-21 12:28:10,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:28:10,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:28:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:10,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:10,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:10,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:28:10,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:10,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:28:10,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:10,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:10,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:10,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:10,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:28:10,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:28:10,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:10,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:10,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:10,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 12:28:10,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:10,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 12:28:10,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:10,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:28:10,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:10,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:28:10,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:10,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 12:28:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:10,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:10,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:10,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-21 12:28:10,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:10,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-21 12:28:10,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:10,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:10,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:28:10,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-21 12:28:10,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:28:10,413 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 12:28:10,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [881438141] [2020-09-21 12:28:10,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:28:10,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:28:10,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033531121] [2020-09-21 12:28:10,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:28:10,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:28:10,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:28:10,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:28:10,416 INFO L87 Difference]: Start difference. First operand 1696 states and 2292 transitions. Second operand 7 states. [2020-09-21 12:28:12,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:28:12,569 INFO L93 Difference]: Finished difference Result 4127 states and 5756 transitions. [2020-09-21 12:28:12,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 12:28:12,570 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 139 [2020-09-21 12:28:12,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:28:12,585 INFO L225 Difference]: With dead ends: 4127 [2020-09-21 12:28:12,585 INFO L226 Difference]: Without dead ends: 2437 [2020-09-21 12:28:12,590 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:28:12,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2437 states. [2020-09-21 12:28:12,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2437 to 2389. [2020-09-21 12:28:12,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2389 states. [2020-09-21 12:28:12,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2389 states to 2389 states and 3048 transitions. [2020-09-21 12:28:12,688 INFO L78 Accepts]: Start accepts. Automaton has 2389 states and 3048 transitions. Word has length 139 [2020-09-21 12:28:12,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:28:12,689 INFO L479 AbstractCegarLoop]: Abstraction has 2389 states and 3048 transitions. [2020-09-21 12:28:12,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:28:12,689 INFO L276 IsEmpty]: Start isEmpty. Operand 2389 states and 3048 transitions. [2020-09-21 12:28:12,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-21 12:28:12,696 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:28:12,697 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2020-09-21 12:28:12,697 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:28:12,697 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:28:12,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:28:12,698 INFO L82 PathProgramCache]: Analyzing trace with hash 493699615, now seen corresponding path program 1 times [2020-09-21 12:28:12,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:28:12,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [796554192] [2020-09-21 12:28:12,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:28:12,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:12,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:12,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:13,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:13,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-21 12:28:13,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:28:13,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1027 [2020-09-21 12:28:13,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:13,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:13,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 12:28:13,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-21 12:28:13,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:28:13,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:28:13,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:13,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:13,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:13,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:28:13,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:13,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:28:13,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:13,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:13,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:13,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:13,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:13,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:28:13,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:13,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:13,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:13,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 12:28:13,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:13,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:28:13,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:13,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:28:13,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:13,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:28:13,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:13,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 12:28:13,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:13,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:14,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:14,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-21 12:28:14,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:14,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-21 12:28:14,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:14,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:14,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:28:14,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:28:14,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:14,081 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 12:28:14,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [796554192] [2020-09-21 12:28:14,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:28:14,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:28:14,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858245162] [2020-09-21 12:28:14,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:28:14,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:28:14,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:28:14,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:28:14,084 INFO L87 Difference]: Start difference. First operand 2389 states and 3048 transitions. Second operand 7 states. [2020-09-21 12:28:15,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:28:15,575 INFO L93 Difference]: Finished difference Result 4270 states and 5502 transitions. [2020-09-21 12:28:15,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 12:28:15,576 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 143 [2020-09-21 12:28:15,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:28:15,598 INFO L225 Difference]: With dead ends: 4270 [2020-09-21 12:28:15,598 INFO L226 Difference]: Without dead ends: 2709 [2020-09-21 12:28:15,606 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 12:28:15,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2709 states. [2020-09-21 12:28:15,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2709 to 2536. [2020-09-21 12:28:15,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2536 states. [2020-09-21 12:28:15,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2536 states to 2536 states and 3174 transitions. [2020-09-21 12:28:15,737 INFO L78 Accepts]: Start accepts. Automaton has 2536 states and 3174 transitions. Word has length 143 [2020-09-21 12:28:15,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:28:15,738 INFO L479 AbstractCegarLoop]: Abstraction has 2536 states and 3174 transitions. [2020-09-21 12:28:15,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:28:15,739 INFO L276 IsEmpty]: Start isEmpty. Operand 2536 states and 3174 transitions. [2020-09-21 12:28:15,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-09-21 12:28:15,753 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:28:15,754 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-21 12:28:15,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:28:15,754 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:28:15,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:28:15,755 INFO L82 PathProgramCache]: Analyzing trace with hash 2128322771, now seen corresponding path program 1 times [2020-09-21 12:28:15,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:28:15,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2054773357] [2020-09-21 12:28:15,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:28:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:15,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:16,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:16,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:16,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:16,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-09-21 12:28:16,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:28:16,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1008 [2020-09-21 12:28:16,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:16,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:16,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-21 12:28:16,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-21 12:28:16,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:17,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:28:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:17,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:17,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:17,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:28:17,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:17,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:28:17,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:17,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:17,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:17,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:17,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:17,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:28:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:17,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:17,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:17,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:28:17,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:17,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 12:28:17,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:17,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:17,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:17,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:17,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:28:17,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:28:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:17,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:17,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:17,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 12:28:17,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:17,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 12:28:17,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:17,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:28:17,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:17,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 12:28:17,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:17,175 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-21 12:28:17,175 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2054773357] [2020-09-21 12:28:17,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:28:17,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 12:28:17,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182279711] [2020-09-21 12:28:17,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:28:17,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:28:17,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:28:17,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:28:17,178 INFO L87 Difference]: Start difference. First operand 2536 states and 3174 transitions. Second operand 5 states. [2020-09-21 12:28:18,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:28:18,324 INFO L93 Difference]: Finished difference Result 6291 states and 7931 transitions. [2020-09-21 12:28:18,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:28:18,325 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 144 [2020-09-21 12:28:18,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:28:18,348 INFO L225 Difference]: With dead ends: 6291 [2020-09-21 12:28:18,348 INFO L226 Difference]: Without dead ends: 3765 [2020-09-21 12:28:18,354 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:28:18,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3765 states. [2020-09-21 12:28:18,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3765 to 3630. [2020-09-21 12:28:18,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3630 states. [2020-09-21 12:28:18,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3630 states to 3630 states and 4458 transitions. [2020-09-21 12:28:18,466 INFO L78 Accepts]: Start accepts. Automaton has 3630 states and 4458 transitions. Word has length 144 [2020-09-21 12:28:18,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:28:18,468 INFO L479 AbstractCegarLoop]: Abstraction has 3630 states and 4458 transitions. [2020-09-21 12:28:18,468 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:28:18,468 INFO L276 IsEmpty]: Start isEmpty. Operand 3630 states and 4458 transitions. [2020-09-21 12:28:18,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-21 12:28:18,481 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:28:18,481 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:28:18,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:28:18,482 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:28:18,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:28:18,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1481763744, now seen corresponding path program 1 times [2020-09-21 12:28:18,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:28:18,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [70186807] [2020-09-21 12:28:18,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:28:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:18,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:18,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:19,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:19,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:19,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-21 12:28:19,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:28:19,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-21 12:28:19,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:19,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:19,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-21 12:28:19,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-21 12:28:19,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:19,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:28:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:19,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:19,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:19,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:28:19,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:19,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:28:19,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:19,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:19,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:19,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:19,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:19,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:28:19,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:19,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:19,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:19,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-21 12:28:19,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:19,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-21 12:28:19,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:19,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:28:19,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:19,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 12:28:19,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:19,984 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:28:19,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [70186807] [2020-09-21 12:28:19,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:28:19,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 12:28:19,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290004533] [2020-09-21 12:28:19,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:28:19,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:28:19,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:28:19,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:28:19,996 INFO L87 Difference]: Start difference. First operand 3630 states and 4458 transitions. Second operand 5 states. [2020-09-21 12:28:21,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:28:21,087 INFO L93 Difference]: Finished difference Result 6110 states and 7462 transitions. [2020-09-21 12:28:21,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:28:21,087 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2020-09-21 12:28:21,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:28:21,104 INFO L225 Difference]: With dead ends: 6110 [2020-09-21 12:28:21,104 INFO L226 Difference]: Without dead ends: 3487 [2020-09-21 12:28:21,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:28:21,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3487 states. [2020-09-21 12:28:21,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3487 to 3485. [2020-09-21 12:28:21,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3485 states. [2020-09-21 12:28:21,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3485 states to 3485 states and 4255 transitions. [2020-09-21 12:28:21,204 INFO L78 Accepts]: Start accepts. Automaton has 3485 states and 4255 transitions. Word has length 143 [2020-09-21 12:28:21,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:28:21,204 INFO L479 AbstractCegarLoop]: Abstraction has 3485 states and 4255 transitions. [2020-09-21 12:28:21,204 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:28:21,205 INFO L276 IsEmpty]: Start isEmpty. Operand 3485 states and 4255 transitions. [2020-09-21 12:28:21,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-21 12:28:21,214 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:28:21,214 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, 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] [2020-09-21 12:28:21,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 12:28:21,215 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:28:21,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:28:21,216 INFO L82 PathProgramCache]: Analyzing trace with hash -28664797, now seen corresponding path program 1 times [2020-09-21 12:28:21,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:28:21,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1352343494] [2020-09-21 12:28:21,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:28:21,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:21,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:21,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:21,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:22,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:22,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-09-21 12:28:22,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:28:22,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1027 [2020-09-21 12:28:22,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:22,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:22,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-21 12:28:22,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-21 12:28:22,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:22,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:28:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:22,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:22,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:22,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:28:22,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:22,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:28:22,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:22,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:22,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:22,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:22,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:22,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:28:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:22,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:22,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:22,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:28:22,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:22,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 12:28:22,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:22,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:22,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:22,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:22,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:22,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:28:22,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:22,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:22,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:22,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 12:28:22,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:22,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-21 12:28:22,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:22,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:28:22,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:22,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:28:22,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:22,634 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-21 12:28:22,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1352343494] [2020-09-21 12:28:22,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:28:22,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-21 12:28:22,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500947970] [2020-09-21 12:28:22,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:28:22,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:28:22,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:28:22,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:28:22,636 INFO L87 Difference]: Start difference. First operand 3485 states and 4255 transitions. Second operand 6 states. [2020-09-21 12:28:24,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:28:24,264 INFO L93 Difference]: Finished difference Result 8066 states and 9819 transitions. [2020-09-21 12:28:24,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:28:24,265 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 153 [2020-09-21 12:28:24,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:28:24,266 INFO L225 Difference]: With dead ends: 8066 [2020-09-21 12:28:24,266 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 12:28:24,280 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:28:24,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 12:28:24,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 12:28:24,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 12:28:24,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 12:28:24,281 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 153 [2020-09-21 12:28:24,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:28:24,282 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 12:28:24,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:28:24,282 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 12:28:24,282 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 12:28:24,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 12:28:24,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 12:28:24,940 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2020-09-21 12:28:25,043 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-09-21 12:28:26,083 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 78 [2020-09-21 12:28:26,551 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 78 [2020-09-21 12:28:27,388 WARN L193 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 67 [2020-09-21 12:28:27,694 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 49 [2020-09-21 12:28:27,941 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 49 [2020-09-21 12:28:27,947 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 12:28:27,947 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 12:28:27,947 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 12:28:27,948 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-09-21 12:28:27,948 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-09-21 12:28:27,948 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,948 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,948 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,949 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,949 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,949 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,949 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-09-21 12:28:27,949 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-09-21 12:28:27,949 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-09-21 12:28:27,949 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-09-21 12:28:27,950 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-09-21 12:28:27,950 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-09-21 12:28:27,950 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-09-21 12:28:27,950 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-09-21 12:28:27,950 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-09-21 12:28:27,950 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-09-21 12:28:27,950 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,951 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,951 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,951 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,951 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,951 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,951 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-09-21 12:28:27,951 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-09-21 12:28:27,951 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-09-21 12:28:27,952 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-09-21 12:28:27,952 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-09-21 12:28:27,952 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-09-21 12:28:27,952 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-09-21 12:28:27,952 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-09-21 12:28:27,952 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-09-21 12:28:27,952 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-09-21 12:28:27,952 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-09-21 12:28:27,953 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 485) no Hoare annotation was computed. [2020-09-21 12:28:27,953 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-09-21 12:28:27,953 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-09-21 12:28:27,953 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-09-21 12:28:27,953 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-09-21 12:28:27,953 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,953 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,953 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,954 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,954 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,954 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-09-21 12:28:27,954 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-09-21 12:28:27,954 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-09-21 12:28:27,954 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-09-21 12:28:27,954 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-09-21 12:28:27,954 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-09-21 12:28:27,955 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-09-21 12:28:27,955 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-09-21 12:28:27,955 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-09-21 12:28:27,955 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,955 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,955 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,955 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,955 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,956 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-09-21 12:28:27,956 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-09-21 12:28:27,956 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-09-21 12:28:27,956 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-09-21 12:28:27,956 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-09-21 12:28:27,956 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-09-21 12:28:27,956 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-09-21 12:28:27,957 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-09-21 12:28:27,957 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-09-21 12:28:27,957 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-09-21 12:28:27,957 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-09-21 12:28:27,957 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-09-21 12:28:27,957 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-09-21 12:28:27,957 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,957 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,958 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,958 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,958 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,958 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-09-21 12:28:27,958 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-09-21 12:28:27,958 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-09-21 12:28:27,958 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-09-21 12:28:27,958 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-09-21 12:28:27,959 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-09-21 12:28:27,959 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-09-21 12:28:27,959 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-09-21 12:28:27,959 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-09-21 12:28:27,959 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,959 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,959 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,959 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,959 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,960 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,960 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-09-21 12:28:27,960 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,960 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-09-21 12:28:27,960 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-09-21 12:28:27,960 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-09-21 12:28:27,960 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-09-21 12:28:27,960 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-09-21 12:28:27,961 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-09-21 12:28:27,961 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-09-21 12:28:27,961 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-09-21 12:28:27,961 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-09-21 12:28:27,961 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-09-21 12:28:27,961 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-09-21 12:28:27,961 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-09-21 12:28:27,962 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-09-21 12:28:27,962 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,962 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,962 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,962 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,962 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,962 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-09-21 12:28:27,963 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-09-21 12:28:27,963 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-09-21 12:28:27,963 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-09-21 12:28:27,963 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-09-21 12:28:27,963 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-09-21 12:28:27,963 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-09-21 12:28:27,963 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-09-21 12:28:27,963 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,964 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,964 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,964 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,964 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,964 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-09-21 12:28:27,964 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-09-21 12:28:27,964 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-09-21 12:28:27,964 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-09-21 12:28:27,965 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-09-21 12:28:27,965 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-09-21 12:28:27,965 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-09-21 12:28:27,965 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-09-21 12:28:27,965 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-09-21 12:28:27,965 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-09-21 12:28:27,966 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse5 (= ~a7~0 |old(~a7~0)|)) (.cse0 (not (<= |old(~a21~0)| 1))) (.cse1 (not (<= 1 |old(~a21~0)|))) (.cse2 (= 6 |old(~a16~0)|)) (.cse3 (not (= |old(~a7~0)| 1))) (.cse4 (= ~a17~0 |old(~a17~0)|)) (.cse6 (= ~a20~0 |old(~a20~0)|)) (.cse9 (= ~a16~0 |old(~a16~0)|)) (.cse10 (= ~a8~0 |old(~a8~0)|)) (.cse7 (<= ~a21~0 1)) (.cse8 (<= 1 ~a21~0))) (and (or (not (= 14 |old(~a8~0)|)) .cse0 .cse1 .cse2 .cse3 (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (and .cse4 .cse5 .cse6 (= 14 ~a8~0) .cse7 .cse8 (= 5 ~a16~0)) (not (= ~a12~0 8)) (not (= 0 |old(~a17~0)|))) (or .cse3 (not (<= |old(~a8~0)| 13)) (and .cse4 .cse5 (= ~a21~0 |old(~a21~0)|) .cse6 .cse9 .cse10)) (or .cse0 .cse1 (and .cse4 .cse5 .cse6 .cse9 .cse10 .cse7 .cse8) (not (= |old(~a7~0)| 0))) (or .cse0 (not (= |old(~a17~0)| |old(~a20~0)|)) .cse1 .cse2 .cse3 (and .cse4 (= ~a7~0 1) .cse6 .cse9 .cse10 .cse7 .cse8)))) [2020-09-21 12:28:27,966 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-09-21 12:28:27,966 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,966 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,966 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,966 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,967 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-09-21 12:28:27,967 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,967 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,967 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-09-21 12:28:27,967 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-09-21 12:28:27,967 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-09-21 12:28:27,967 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-09-21 12:28:27,967 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-09-21 12:28:27,968 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-09-21 12:28:27,968 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-09-21 12:28:27,968 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-09-21 12:28:27,968 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-09-21 12:28:27,968 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-09-21 12:28:27,968 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-09-21 12:28:27,968 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-09-21 12:28:27,968 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,968 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,969 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,969 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,969 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,969 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-09-21 12:28:27,969 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,969 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-09-21 12:28:27,969 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-09-21 12:28:27,969 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-09-21 12:28:27,970 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-09-21 12:28:27,970 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-09-21 12:28:27,970 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-09-21 12:28:27,970 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-09-21 12:28:27,970 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-09-21 12:28:27,970 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-09-21 12:28:27,970 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-09-21 12:28:27,970 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-09-21 12:28:27,970 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-09-21 12:28:27,971 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-09-21 12:28:27,971 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-09-21 12:28:27,971 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,971 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,971 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,971 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,971 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,971 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:28:27,971 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-09-21 12:28:27,972 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-09-21 12:28:27,972 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-09-21 12:28:27,972 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-09-21 12:28:27,972 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-09-21 12:28:27,972 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-09-21 12:28:27,972 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-09-21 12:28:27,972 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-09-21 12:28:27,972 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-09-21 12:28:27,972 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-09-21 12:28:27,973 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 12:28:27,973 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a20~0 ~a17~0) (not (= ~a16~0 6)) (<= ~a21~0 1) (<= 1 ~a21~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-09-21 12:28:27,973 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 12:28:27,973 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 12:28:27,973 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= |old(~a21~0)| 1)) (not (= |old(~a17~0)| |old(~a20~0)|)) (not (<= 1 |old(~a21~0)|)) (= 6 |old(~a16~0)|) (and (= ~a17~0 |old(~a17~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (<= ~a21~0 1) (<= 1 ~a21~0) (= ~a7~0 0)) (not (= |old(~a7~0)| 0))) [2020-09-21 12:28:27,973 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-09-21 12:28:27,974 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (not (= ~a16~0 6))) (.cse2 (<= ~a21~0 1)) (.cse3 (<= 1 ~a21~0)) (.cse1 (= ~a7~0 1))) (or (not (= |old(~a17~0)| 1)) (and .cse0 .cse1 (= 14 ~a8~0) (= ~a12~0 8) (= ~a20~0 1) .cse2 (= 5 ~a16~0) .cse3 (= ~a17~0 0)) (not (<= |old(~a21~0)| 1)) (not (= |old(~a17~0)| |old(~a20~0)|)) (= 6 |old(~a16~0)|) (not (<= 1 |old(~a21~0)|)) (and .cse2 .cse3 (= ~a7~0 0)) (and (= ~a20~0 ~a17~0) .cse0 .cse1 .cse2 .cse3) (and .cse1 (<= ~a8~0 13)) (not (= |old(~a7~0)| 0)))) [2020-09-21 12:28:27,974 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-09-21 12:28:27,974 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-09-21 12:28:27,974 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (not (= ~a16~0 6))) (.cse2 (<= ~a21~0 1)) (.cse3 (<= 1 ~a21~0)) (.cse1 (= ~a7~0 1))) (or (not (= |old(~a17~0)| 1)) (and .cse0 .cse1 (= 14 ~a8~0) (= ~a12~0 8) (= ~a20~0 1) .cse2 (= 5 ~a16~0) .cse3 (= ~a17~0 0)) (not (<= |old(~a21~0)| 1)) (not (= |old(~a17~0)| |old(~a20~0)|)) (= 6 |old(~a16~0)|) (not (<= 1 |old(~a21~0)|)) (and .cse2 .cse3 (= ~a7~0 0)) (and (= ~a20~0 ~a17~0) .cse0 .cse1 .cse2 .cse3) (and .cse1 (<= ~a8~0 13)) (not (= |old(~a7~0)| 0)))) [2020-09-21 12:28:27,975 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-09-21 12:28:28,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:28:28 BoogieIcfgContainer [2020-09-21 12:28:28,002 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 12:28:28,004 INFO L168 Benchmark]: Toolchain (without parser) took 32010.87 ms. Allocated memory was 138.9 MB in the beginning and 617.1 MB in the end (delta: 478.2 MB). Free memory was 100.0 MB in the beginning and 309.8 MB in the end (delta: -209.8 MB). Peak memory consumption was 448.2 MB. Max. memory is 7.1 GB. [2020-09-21 12:28:28,005 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 12:28:28,006 INFO L168 Benchmark]: CACSL2BoogieTranslator took 840.81 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 99.4 MB in the beginning and 170.8 MB in the end (delta: -71.4 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. [2020-09-21 12:28:28,007 INFO L168 Benchmark]: Boogie Preprocessor took 145.54 ms. Allocated memory is still 204.5 MB. Free memory was 170.8 MB in the beginning and 165.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-09-21 12:28:28,007 INFO L168 Benchmark]: RCFGBuilder took 1417.94 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 165.8 MB in the beginning and 180.1 MB in the end (delta: -14.3 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. [2020-09-21 12:28:28,008 INFO L168 Benchmark]: TraceAbstraction took 29594.26 ms. Allocated memory was 236.5 MB in the beginning and 617.1 MB in the end (delta: 380.6 MB). Free memory was 180.1 MB in the beginning and 309.8 MB in the end (delta: -129.7 MB). Peak memory consumption was 430.7 MB. Max. memory is 7.1 GB. [2020-09-21 12:28:28,012 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 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 840.81 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 99.4 MB in the beginning and 170.8 MB in the end (delta: -71.4 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 145.54 ms. Allocated memory is still 204.5 MB. Free memory was 170.8 MB in the beginning and 165.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1417.94 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 165.8 MB in the beginning and 180.1 MB in the end (delta: -14.3 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29594.26 ms. Allocated memory was 236.5 MB in the beginning and 617.1 MB in the end (delta: 380.6 MB). Free memory was 180.1 MB in the beginning and 309.8 MB in the end (delta: -129.7 MB). Peak memory consumption was 430.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 485]: 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: ((((((((!(\old(a17) == 1) || ((((((((!(a16 == 6) && a7 == 1) && 14 == a8) && a12 == 8) && a20 == 1) && a21 <= 1) && 5 == a16) && 1 <= a21) && a17 == 0)) || !(\old(a21) <= 1)) || !(\old(a17) == \old(a20))) || 6 == \old(a16)) || !(1 <= \old(a21))) || ((a21 <= 1 && 1 <= a21) && a7 == 0)) || ((((a20 == a17 && !(a16 == 6)) && a7 == 1) && a21 <= 1) && 1 <= a21)) || (a7 == 1 && a8 <= 13)) || !(\old(a7) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 25.7s, OverallIterations: 8, TraceHistogramMax: 3, AutomataDifference: 13.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 225 SDtfs, 3436 SDslu, 235 SDs, 0 SdLazy, 6451 SolverSat, 1121 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3630occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 8 MinimizatonAttempts, 416 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 131 PreInvPairs, 201 NumberOfFragments, 463 HoareAnnotationTreeSize, 131 FomulaSimplifications, 45472 FormulaSimplificationTreeSizeReduction, 2.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4726 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 10.4s InterpolantComputationTime, 1081 NumberOfCodeBlocks, 1081 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1073 ConstructedInterpolants, 0 QuantifiedInterpolants, 608608 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 224/235 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...