/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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label52.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:26:44,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:26:44,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:26:44,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:26:44,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:26:44,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:26:44,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:26:44,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:26:44,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:26:44,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:26:44,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:26:44,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:26:44,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:26:44,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:26:44,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:26:44,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:26:44,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:26:44,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:26:44,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:26:44,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:26:44,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:26:44,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:26:44,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:26:44,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:26:44,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:26:44,876 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:26:44,876 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:26:44,878 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:26:44,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:26:44,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:26:44,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:26:44,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:26:44,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:26:44,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:26:44,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:26:44,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:26:44,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:26:44,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:26:44,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:26:44,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:26:44,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:26:44,888 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 11:26:44,916 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:26:44,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:26:44,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:26:44,919 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:26:44,919 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:26:44,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:26:44,919 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:26:44,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:26:44,920 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:26:44,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:26:44,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:26:44,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:26:44,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:26:44,920 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:26:44,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:26:44,921 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:26:44,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:26:44,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:26:44,922 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:26:44,922 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:26:44,922 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:26:44,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:26:44,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:26:44,923 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:26:44,923 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:26:44,923 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:26:44,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:26:44,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:26:44,924 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:26:44,924 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:26:45,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:26:45,395 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:26:45,400 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:26:45,402 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:26:45,402 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:26:45,403 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label52.c [2020-09-21 11:26:45,490 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2200e490e/c2900d0e33a24e05abd5e85655f8457d/FLAG69352a7b0 [2020-09-21 11:26:46,149 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:26:46,150 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label52.c [2020-09-21 11:26:46,168 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2200e490e/c2900d0e33a24e05abd5e85655f8457d/FLAG69352a7b0 [2020-09-21 11:26:46,332 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2200e490e/c2900d0e33a24e05abd5e85655f8457d [2020-09-21 11:26:46,347 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:26:46,353 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:26:46,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:26:46,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:26:46,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:26:46,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:26:46" (1/1) ... [2020-09-21 11:26:46,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55e164ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:46, skipping insertion in model container [2020-09-21 11:26:46,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:26:46" (1/1) ... [2020-09-21 11:26:46,378 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:26:46,449 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:26:46,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:26:46,976 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:26:47,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:26:47,280 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:26:47,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:47 WrapperNode [2020-09-21 11:26:47,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:26:47,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:26:47,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:26:47,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:26:47,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:47" (1/1) ... [2020-09-21 11:26:47,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:47" (1/1) ... [2020-09-21 11:26:47,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:47" (1/1) ... [2020-09-21 11:26:47,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:47" (1/1) ... [2020-09-21 11:26:47,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:47" (1/1) ... [2020-09-21 11:26:47,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:47" (1/1) ... [2020-09-21 11:26:47,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:47" (1/1) ... [2020-09-21 11:26:47,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:26:47,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:26:47,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:26:47,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:26:47,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:47" (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 11:26:47,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:26:47,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:26:47,500 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-21 11:26:47,500 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:26:47,501 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-21 11:26:47,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:26:47,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:26:47,501 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 11:26:47,502 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:26:47,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:26:47,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:26:48,709 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:26:48,710 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 11:26:48,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:26:48 BoogieIcfgContainer [2020-09-21 11:26:48,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:26:48,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:26:48,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:26:48,730 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:26:48,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:26:46" (1/3) ... [2020-09-21 11:26:48,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2993485a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:26:48, skipping insertion in model container [2020-09-21 11:26:48,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:47" (2/3) ... [2020-09-21 11:26:48,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2993485a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:26:48, skipping insertion in model container [2020-09-21 11:26:48,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:26:48" (3/3) ... [2020-09-21 11:26:48,736 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label52.c [2020-09-21 11:26:48,748 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:26:48,761 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:26:48,783 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:26:48,821 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:26:48,821 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:26:48,821 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:26:48,821 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:26:48,821 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:26:48,822 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:26:48,822 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:26:48,822 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:26:48,849 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-09-21 11:26:48,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-09-21 11:26:48,863 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:26:48,864 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:26:48,865 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:26:48,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:26:48,873 INFO L82 PathProgramCache]: Analyzing trace with hash -777531634, now seen corresponding path program 1 times [2020-09-21 11:26:48,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:26:48,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1429322998] [2020-09-21 11:26:48,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:26:49,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:49,265 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:49,266 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:49,266 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:49,266 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:49,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-21 11:26:49,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:49,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-21 11:26:49,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:49,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:26:49,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:26:49,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-21 11:26:49,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:26:49,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:26:49,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:49,539 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:49,539 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:49,539 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:49,540 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:49,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:26:49,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:49,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:26:49,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:49,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:49,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:49,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:26:49,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:26:49,597 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 11:26:49,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1429322998] [2020-09-21 11:26:49,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:26:49,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:26:49,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850887406] [2020-09-21 11:26:49,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:26:49,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:26:49,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:26:49,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:26:49,632 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 5 states. [2020-09-21 11:26:52,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:26:52,182 INFO L93 Difference]: Finished difference Result 784 states and 1378 transitions. [2020-09-21 11:26:52,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:26:52,185 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 110 [2020-09-21 11:26:52,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:26:52,207 INFO L225 Difference]: With dead ends: 784 [2020-09-21 11:26:52,207 INFO L226 Difference]: Without dead ends: 480 [2020-09-21 11:26:52,216 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:26:52,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-09-21 11:26:52,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 473. [2020-09-21 11:26:52,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2020-09-21 11:26:52,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 645 transitions. [2020-09-21 11:26:52,325 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 645 transitions. Word has length 110 [2020-09-21 11:26:52,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:26:52,326 INFO L479 AbstractCegarLoop]: Abstraction has 473 states and 645 transitions. [2020-09-21 11:26:52,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:26:52,327 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 645 transitions. [2020-09-21 11:26:52,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-09-21 11:26:52,335 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:26:52,336 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:26:52,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:26:52,336 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:26:52,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:26:52,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1290355991, now seen corresponding path program 1 times [2020-09-21 11:26:52,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:26:52,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [368303152] [2020-09-21 11:26:52,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:26:52,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:52,444 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:52,445 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:52,445 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:52,445 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:52,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-21 11:26:52,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:52,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 11:26:52,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:52,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:52,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-21 11:26:52,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-21 11:26:52,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-21 11:26:52,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:26:52,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:52,597 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:52,598 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:52,598 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:52,598 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:52,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:26:52,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:52,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:26:52,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:52,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:52,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:52,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:52,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:26:52,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:26:52,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:52,629 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:52,629 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:52,629 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:52,630 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:52,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 11:26:52,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:52,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:26:52,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:52,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:52,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:52,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:26:52,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:52,673 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:26:52,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [368303152] [2020-09-21 11:26:52,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:26:52,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:26:52,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299035412] [2020-09-21 11:26:52,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:26:52,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:26:52,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:26:52,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:26:52,678 INFO L87 Difference]: Start difference. First operand 473 states and 645 transitions. Second operand 5 states. [2020-09-21 11:26:54,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:26:54,048 INFO L93 Difference]: Finished difference Result 1383 states and 1926 transitions. [2020-09-21 11:26:54,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:26:54,049 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 131 [2020-09-21 11:26:54,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:26:54,057 INFO L225 Difference]: With dead ends: 1383 [2020-09-21 11:26:54,058 INFO L226 Difference]: Without dead ends: 916 [2020-09-21 11:26:54,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:26:54,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2020-09-21 11:26:54,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 912. [2020-09-21 11:26:54,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 912 states. [2020-09-21 11:26:54,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1230 transitions. [2020-09-21 11:26:54,118 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1230 transitions. Word has length 131 [2020-09-21 11:26:54,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:26:54,118 INFO L479 AbstractCegarLoop]: Abstraction has 912 states and 1230 transitions. [2020-09-21 11:26:54,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:26:54,119 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1230 transitions. [2020-09-21 11:26:54,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-21 11:26:54,132 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:26:54,132 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 11:26:54,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:26:54,133 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:26:54,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:26:54,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1672579552, now seen corresponding path program 1 times [2020-09-21 11:26:54,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:26:54,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1215499468] [2020-09-21 11:26:54,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:26:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:54,197 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-21 11:26:54,198 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -14 [2020-09-21 11:26:54,198 FATAL L256 erpolLogProxyWrapper]: Difference in width: 14 [2020-09-21 11:26:54,198 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:54,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-21 11:26:54,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:54,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 11:26:54,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:54,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:54,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-21 11:26:54,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:26:54,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:54,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:26:54,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:54,319 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:54,319 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:54,319 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:54,320 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:54,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:26:54,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:54,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:26:54,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:54,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:54,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:54,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:54,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:54,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:26:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:54,346 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:54,347 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:54,347 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:54,347 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:54,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:26:54,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:54,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:26:54,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:54,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:54,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:54,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:26:54,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:54,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 11:26:54,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:54,375 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:54,375 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:54,375 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:54,376 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:54,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:26:54,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:54,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:26:54,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:54,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:54,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:26:54,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 11:26:54,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:54,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-21 11:26:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:54,427 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:54,428 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:54,428 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:54,428 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:54,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-21 11:26:54,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:54,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:26:54,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:54,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:54,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-21 11:26:54,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:54,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:54,502 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 64 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-21 11:26:54,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1215499468] [2020-09-21 11:26:54,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:26:54,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 11:26:54,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232869272] [2020-09-21 11:26:54,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:26:54,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:26:54,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:26:54,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:26:54,505 INFO L87 Difference]: Start difference. First operand 912 states and 1230 transitions. Second operand 8 states. [2020-09-21 11:26:56,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:26:56,958 INFO L93 Difference]: Finished difference Result 2142 states and 2971 transitions. [2020-09-21 11:26:56,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:26:56,959 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 174 [2020-09-21 11:26:56,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:26:56,967 INFO L225 Difference]: With dead ends: 2142 [2020-09-21 11:26:56,967 INFO L226 Difference]: Without dead ends: 1236 [2020-09-21 11:26:56,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:26:56,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2020-09-21 11:26:57,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 1223. [2020-09-21 11:26:57,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1223 states. [2020-09-21 11:26:57,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1636 transitions. [2020-09-21 11:26:57,035 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1636 transitions. Word has length 174 [2020-09-21 11:26:57,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:26:57,036 INFO L479 AbstractCegarLoop]: Abstraction has 1223 states and 1636 transitions. [2020-09-21 11:26:57,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:26:57,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1636 transitions. [2020-09-21 11:26:57,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-09-21 11:26:57,049 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:26:57,050 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:26:57,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:26:57,051 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:26:57,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:26:57,051 INFO L82 PathProgramCache]: Analyzing trace with hash -190457290, now seen corresponding path program 1 times [2020-09-21 11:26:57,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:26:57,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [332421551] [2020-09-21 11:26:57,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:26:57,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:57,118 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:57,118 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:57,118 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:57,119 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:57,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-21 11:26:57,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:57,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:26:57,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:57,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:57,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-21 11:26:57,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:26:57,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:57,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:26:57,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:57,218 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:57,218 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:57,219 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:57,219 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:57,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:26:57,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:57,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:26:57,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:57,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:57,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:57,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:57,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:57,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:26:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:57,254 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:57,254 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:57,255 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:57,255 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:57,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 11:26:57,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:57,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:26:57,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:57,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:57,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:57,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:26:57,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:57,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-21 11:26:57,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:57,281 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:57,281 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:57,282 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:57,282 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:57,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:26:57,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:57,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:26:57,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:57,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:57,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:26:57,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 11:26:57,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:57,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:26:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:57,330 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:57,330 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:57,330 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:57,331 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:57,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-21 11:26:57,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:57,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:26:57,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:57,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:57,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-21 11:26:57,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:57,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:26:57,427 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 74 proven. 7 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-09-21 11:26:57,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [332421551] [2020-09-21 11:26:57,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:26:57,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:26:57,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934437960] [2020-09-21 11:26:57,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:26:57,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:26:57,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:26:57,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:26:57,435 INFO L87 Difference]: Start difference. First operand 1223 states and 1636 transitions. Second operand 7 states. [2020-09-21 11:27:00,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:00,031 INFO L93 Difference]: Finished difference Result 4736 states and 7045 transitions. [2020-09-21 11:27:00,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:27:00,032 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 186 [2020-09-21 11:27:00,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:00,049 INFO L225 Difference]: With dead ends: 4736 [2020-09-21 11:27:00,049 INFO L226 Difference]: Without dead ends: 2313 [2020-09-21 11:27:00,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:27:00,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2313 states. [2020-09-21 11:27:00,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2313 to 1847. [2020-09-21 11:27:00,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1847 states. [2020-09-21 11:27:00,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1847 states to 1847 states and 2432 transitions. [2020-09-21 11:27:00,149 INFO L78 Accepts]: Start accepts. Automaton has 1847 states and 2432 transitions. Word has length 186 [2020-09-21 11:27:00,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:00,149 INFO L479 AbstractCegarLoop]: Abstraction has 1847 states and 2432 transitions. [2020-09-21 11:27:00,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:27:00,150 INFO L276 IsEmpty]: Start isEmpty. Operand 1847 states and 2432 transitions. [2020-09-21 11:27:00,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-21 11:27:00,158 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:00,158 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:00,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:27:00,159 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:00,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:00,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1756951878, now seen corresponding path program 1 times [2020-09-21 11:27:00,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:00,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1242149595] [2020-09-21 11:27:00,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:00,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:00,214 FATAL L256 erpolLogProxyWrapper]: Difference in size: 6 [2020-09-21 11:27:00,215 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -25 [2020-09-21 11:27:00,215 FATAL L256 erpolLogProxyWrapper]: Difference in width: 25 [2020-09-21 11:27:00,215 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:00,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-09-21 11:27:00,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:00,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:27:00,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:00,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:00,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-21 11:27:00,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:27:00,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:00,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:00,297 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:00,297 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:00,298 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:00,298 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:00,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:00,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:00,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:00,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:00,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:00,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:00,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:00,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:00,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:00,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:00,325 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:00,325 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:00,325 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:00,325 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:00,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 11:27:00,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:00,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:27:00,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:00,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:00,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:00,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:27:00,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:00,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-21 11:27:00,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:00,347 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:00,348 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:00,348 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:00,348 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:00,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:27:00,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:00,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:27:00,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:00,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:00,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:00,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:27:00,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:00,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:27:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:00,383 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:00,384 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:00,384 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:00,384 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:00,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-21 11:27:00,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:00,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:00,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:00,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:00,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-21 11:27:00,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:00,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:00,432 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 80 proven. 10 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-09-21 11:27:00,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1242149595] [2020-09-21 11:27:00,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:00,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:27:00,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909309503] [2020-09-21 11:27:00,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:27:00,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:00,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:27:00,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:27:00,436 INFO L87 Difference]: Start difference. First operand 1847 states and 2432 transitions. Second operand 7 states. [2020-09-21 11:27:02,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:02,507 INFO L93 Difference]: Finished difference Result 3712 states and 4902 transitions. [2020-09-21 11:27:02,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:27:02,507 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 189 [2020-09-21 11:27:02,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:02,520 INFO L225 Difference]: With dead ends: 3712 [2020-09-21 11:27:02,520 INFO L226 Difference]: Without dead ends: 1875 [2020-09-21 11:27:02,526 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:27:02,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1875 states. [2020-09-21 11:27:02,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1875 to 1857. [2020-09-21 11:27:02,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1857 states. [2020-09-21 11:27:02,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1857 states to 1857 states and 2295 transitions. [2020-09-21 11:27:02,590 INFO L78 Accepts]: Start accepts. Automaton has 1857 states and 2295 transitions. Word has length 189 [2020-09-21 11:27:02,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:02,590 INFO L479 AbstractCegarLoop]: Abstraction has 1857 states and 2295 transitions. [2020-09-21 11:27:02,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:27:02,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1857 states and 2295 transitions. [2020-09-21 11:27:02,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-21 11:27:02,598 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:02,598 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-21 11:27:02,599 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:27:02,599 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:02,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:02,599 INFO L82 PathProgramCache]: Analyzing trace with hash 70168398, now seen corresponding path program 1 times [2020-09-21 11:27:02,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:02,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [893364309] [2020-09-21 11:27:02,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:02,657 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:02,657 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:02,657 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:02,658 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:02,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-09-21 11:27:02,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:02,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:27:02,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:02,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:02,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:27:02,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:27:02,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:02,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:02,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:02,740 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:02,740 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:02,740 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:02,741 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:02,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:02,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:02,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:02,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:02,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:02,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:02,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:02,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:02,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:02,773 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:02,773 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:02,773 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:02,773 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:02,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:27:02,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:02,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:27:02,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:02,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:02,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:02,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-21 11:27:02,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:02,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:27:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:02,798 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:02,798 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:02,799 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:02,799 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:02,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:27:02,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:02,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:27:02,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:02,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:02,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:02,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:27:02,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:02,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 11:27:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:02,834 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:02,834 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:02,834 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:02,835 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:02,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:27:02,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:02,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:02,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:02,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:02,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 11:27:02,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:02,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:27:02,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-21 11:27:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:02,854 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:02,854 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:02,855 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:02,855 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:02,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-21 11:27:02,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:02,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:27:02,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:02,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:02,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-21 11:27:02,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:02,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:02,944 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 115 proven. 22 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-09-21 11:27:02,945 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [893364309] [2020-09-21 11:27:02,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:02,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:27:02,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792423742] [2020-09-21 11:27:02,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:27:02,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:02,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:27:02,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:27:02,950 INFO L87 Difference]: Start difference. First operand 1857 states and 2295 transitions. Second operand 7 states. [2020-09-21 11:27:03,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:03,489 INFO L93 Difference]: Finished difference Result 2003 states and 2447 transitions. [2020-09-21 11:27:03,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 11:27:03,490 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 216 [2020-09-21 11:27:03,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:03,491 INFO L225 Difference]: With dead ends: 2003 [2020-09-21 11:27:03,491 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 11:27:03,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:27:03,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 11:27:03,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 11:27:03,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 11:27:03,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 11:27:03,497 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 216 [2020-09-21 11:27:03,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:03,497 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 11:27:03,497 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:27:03,497 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 11:27:03,497 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 11:27:03,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:27:03,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 11:27:04,584 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 26 [2020-09-21 11:27:04,703 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:27:04,704 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-09-21 11:27:04,704 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:27:04,704 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,704 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,704 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,705 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,705 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,705 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-09-21 11:27:04,706 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-09-21 11:27:04,706 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-09-21 11:27:04,706 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-09-21 11:27:04,706 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-09-21 11:27:04,706 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-09-21 11:27:04,706 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-09-21 11:27:04,706 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-09-21 11:27:04,706 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-09-21 11:27:04,707 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-09-21 11:27:04,707 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-09-21 11:27:04,707 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-09-21 11:27:04,707 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-09-21 11:27:04,708 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,708 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,708 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,708 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,708 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-09-21 11:27:04,708 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,708 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-09-21 11:27:04,708 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-09-21 11:27:04,709 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-09-21 11:27:04,709 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-09-21 11:27:04,709 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-09-21 11:27:04,709 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-09-21 11:27:04,709 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-09-21 11:27:04,710 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-09-21 11:27:04,710 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-09-21 11:27:04,710 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-09-21 11:27:04,710 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-09-21 11:27:04,710 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-09-21 11:27:04,710 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-09-21 11:27:04,711 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-09-21 11:27:04,711 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-09-21 11:27:04,711 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,712 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,712 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,713 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,713 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,713 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 484) no Hoare annotation was computed. [2020-09-21 11:27:04,713 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-09-21 11:27:04,713 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-09-21 11:27:04,713 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-09-21 11:27:04,714 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-09-21 11:27:04,714 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-09-21 11:27:04,714 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-09-21 11:27:04,714 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-09-21 11:27:04,714 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-09-21 11:27:04,714 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-09-21 11:27:04,714 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-09-21 11:27:04,714 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-09-21 11:27:04,715 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,715 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,715 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,715 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,715 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,715 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-09-21 11:27:04,715 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-09-21 11:27:04,715 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-09-21 11:27:04,716 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-09-21 11:27:04,716 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-09-21 11:27:04,716 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-09-21 11:27:04,716 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-09-21 11:27:04,716 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-09-21 11:27:04,716 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-09-21 11:27:04,716 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-09-21 11:27:04,716 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-09-21 11:27:04,717 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-09-21 11:27:04,718 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-09-21 11:27:04,718 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,718 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,718 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,718 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,719 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,719 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-09-21 11:27:04,719 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-09-21 11:27:04,719 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-09-21 11:27:04,719 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-09-21 11:27:04,719 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-09-21 11:27:04,719 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-09-21 11:27:04,720 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-09-21 11:27:04,720 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-09-21 11:27:04,720 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-09-21 11:27:04,720 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-09-21 11:27:04,720 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-09-21 11:27:04,720 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-09-21 11:27:04,720 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-09-21 11:27:04,720 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-09-21 11:27:04,720 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-09-21 11:27:04,721 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-09-21 11:27:04,721 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,721 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,721 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,721 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,721 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-09-21 11:27:04,721 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,722 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-09-21 11:27:04,722 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,722 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-09-21 11:27:04,723 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-09-21 11:27:04,723 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-09-21 11:27:04,723 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,723 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,723 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-09-21 11:27:04,723 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-09-21 11:27:04,723 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-09-21 11:27:04,724 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-09-21 11:27:04,724 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-09-21 11:27:04,724 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-09-21 11:27:04,724 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-09-21 11:27:04,724 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-09-21 11:27:04,724 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-09-21 11:27:04,724 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-09-21 11:27:04,725 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-09-21 11:27:04,725 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,725 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,725 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,725 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,725 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,725 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,725 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-09-21 11:27:04,726 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-09-21 11:27:04,726 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-09-21 11:27:04,726 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-09-21 11:27:04,726 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-09-21 11:27:04,726 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-09-21 11:27:04,726 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-09-21 11:27:04,726 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-09-21 11:27:04,726 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-09-21 11:27:04,727 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-09-21 11:27:04,727 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-09-21 11:27:04,727 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,727 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,727 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,727 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,727 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,727 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,728 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-09-21 11:27:04,728 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-09-21 11:27:04,728 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-09-21 11:27:04,728 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-09-21 11:27:04,728 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-09-21 11:27:04,728 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-09-21 11:27:04,728 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-09-21 11:27:04,728 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-09-21 11:27:04,729 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-09-21 11:27:04,729 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-09-21 11:27:04,729 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-09-21 11:27:04,729 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-09-21 11:27:04,729 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-09-21 11:27:04,729 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-09-21 11:27:04,729 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,729 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,729 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,731 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse0 (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a19~0 |old(~a19~0)|)))) (and (or (= 8 |old(~a28~0)|) .cse0) (or (not (= |old(~a19~0)| 1)) .cse0) (or .cse0 (= |old(~a11~0)| 1)))) [2020-09-21 11:27:04,731 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,731 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,731 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,731 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-09-21 11:27:04,732 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-09-21 11:27:04,732 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-09-21 11:27:04,732 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-09-21 11:27:04,732 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-09-21 11:27:04,732 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-09-21 11:27:04,732 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-09-21 11:27:04,732 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-09-21 11:27:04,732 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-09-21 11:27:04,733 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-09-21 11:27:04,733 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-09-21 11:27:04,733 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-09-21 11:27:04,733 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-09-21 11:27:04,733 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,733 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,733 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,733 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,734 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,734 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,734 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-09-21 11:27:04,734 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-09-21 11:27:04,734 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-09-21 11:27:04,734 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-09-21 11:27:04,734 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-09-21 11:27:04,735 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-09-21 11:27:04,735 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-09-21 11:27:04,735 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-09-21 11:27:04,735 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-09-21 11:27:04,735 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-09-21 11:27:04,735 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-09-21 11:27:04,735 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-09-21 11:27:04,736 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-09-21 11:27:04,736 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-09-21 11:27:04,736 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-09-21 11:27:04,736 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-09-21 11:27:04,736 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,736 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,736 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,736 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,737 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:04,737 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-09-21 11:27:04,737 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-09-21 11:27:04,737 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-09-21 11:27:04,737 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-09-21 11:27:04,737 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-09-21 11:27:04,737 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-09-21 11:27:04,738 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-09-21 11:27:04,738 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-09-21 11:27:04,738 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-09-21 11:27:04,738 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-09-21 11:27:04,738 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-09-21 11:27:04,738 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-09-21 11:27:04,738 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-09-21 11:27:04,739 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-09-21 11:27:04,739 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-09-21 11:27:04,739 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-09-21 11:27:04,739 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-09-21 11:27:04,739 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-09-21 11:27:04,739 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-09-21 11:27:04,739 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:27:04,740 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 1) (not (= ~a11~0 1)) (<= ~a28~0 7)) [2020-09-21 11:27:04,740 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 11:27:04,740 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:27:04,740 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (= |old(~a19~0)| 1)) (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a19~0 |old(~a19~0)|)) (= |old(~a11~0)| 1)) [2020-09-21 11:27:04,741 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (= |old(~a19~0)| 1)) (not (= ~a28~0 8)) (= |old(~a11~0)| 1) (not (= ~a11~0 1)) (= ~a19~0 |old(~a19~0)|)) [2020-09-21 11:27:04,741 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-09-21 11:27:04,741 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-09-21 11:27:04,741 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (= |old(~a19~0)| 1)) (not (= ~a28~0 8)) (= |old(~a11~0)| 1) (not (= ~a11~0 1)) (= ~a19~0 |old(~a19~0)|)) [2020-09-21 11:27:04,742 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-09-21 11:27:04,742 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-09-21 11:27:04,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:27:04 BoogieIcfgContainer [2020-09-21 11:27:04,775 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:27:04,779 INFO L168 Benchmark]: Toolchain (without parser) took 18429.21 ms. Allocated memory was 137.9 MB in the beginning and 446.2 MB in the end (delta: 308.3 MB). Free memory was 99.1 MB in the beginning and 229.8 MB in the end (delta: -130.8 MB). Peak memory consumption was 177.5 MB. Max. memory is 7.1 GB. [2020-09-21 11:27:04,780 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 11:27:04,786 INFO L168 Benchmark]: CACSL2BoogieTranslator took 925.04 ms. Allocated memory was 137.9 MB in the beginning and 203.4 MB in the end (delta: 65.5 MB). Free memory was 98.5 MB in the beginning and 170.6 MB in the end (delta: -72.2 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:27:04,788 INFO L168 Benchmark]: Boogie Preprocessor took 115.78 ms. Allocated memory is still 203.4 MB. Free memory was 170.6 MB in the beginning and 165.6 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:27:04,788 INFO L168 Benchmark]: RCFGBuilder took 1325.19 ms. Allocated memory was 203.4 MB in the beginning and 233.3 MB in the end (delta: 29.9 MB). Free memory was 165.6 MB in the beginning and 180.4 MB in the end (delta: -14.8 MB). Peak memory consumption was 86.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:27:04,789 INFO L168 Benchmark]: TraceAbstraction took 16049.18 ms. Allocated memory was 233.3 MB in the beginning and 446.2 MB in the end (delta: 212.9 MB). Free memory was 180.4 MB in the beginning and 229.8 MB in the end (delta: -49.4 MB). Peak memory consumption was 163.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:27:04,803 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 925.04 ms. Allocated memory was 137.9 MB in the beginning and 203.4 MB in the end (delta: 65.5 MB). Free memory was 98.5 MB in the beginning and 170.6 MB in the end (delta: -72.2 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.78 ms. Allocated memory is still 203.4 MB. Free memory was 170.6 MB in the beginning and 165.6 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1325.19 ms. Allocated memory was 203.4 MB in the beginning and 233.3 MB in the end (delta: 29.9 MB). Free memory was 165.6 MB in the beginning and 180.4 MB in the end (delta: -14.8 MB). Peak memory consumption was 86.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16049.18 ms. Allocated memory was 233.3 MB in the beginning and 446.2 MB in the end (delta: 212.9 MB). Free memory was 180.4 MB in the beginning and 229.8 MB in the end (delta: -49.4 MB). Peak memory consumption was 163.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 484]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((!(\old(a28) <= 7) || !(\old(a19) == 1)) || !(a28 == 8)) || \old(a11) == 1) || !(a11 == 1)) || a19 == \old(a19) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.6s, OverallIterations: 6, TraceHistogramMax: 5, AutomataDifference: 11.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 251 SDtfs, 3122 SDslu, 350 SDs, 0 SdLazy, 5841 SolverSat, 1095 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1857occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 508 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 71 PreInvPairs, 117 NumberOfFragments, 200 HoareAnnotationTreeSize, 71 FomulaSimplifications, 4250 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1878 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 1006 NumberOfCodeBlocks, 1006 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1000 ConstructedInterpolants, 0 QuantifiedInterpolants, 373215 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 441/488 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...