/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/Problem01_label54.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:25:23,801 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:25:23,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:25:23,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:25:23,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:25:23,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:25:23,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:25:23,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:25:23,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:25:23,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:25:23,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:25:23,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:25:23,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:25:23,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:25:23,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:25:23,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:25:23,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:25:23,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:25:23,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:25:23,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:25:23,874 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:25:23,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:25:23,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:25:23,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:25:23,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:25:23,882 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:25:23,882 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:25:23,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:25:23,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:25:23,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:25:23,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:25:23,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:25:23,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:25:23,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:25:23,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:25:23,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:25:23,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:25:23,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:25:23,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:25:23,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:25:23,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:25:23,912 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 11:25:23,955 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:25:23,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:25:23,957 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:25:23,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:25:23,958 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:25:23,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:25:23,959 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:25:23,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:25:23,959 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:25:23,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:25:23,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:25:23,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:25:23,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:25:23,961 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:25:23,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:25:23,961 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:25:23,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:25:23,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:25:23,962 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:25:23,962 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:25:23,962 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:25:23,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:25:23,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:25:23,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:25:23,963 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:25:23,964 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:25:23,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:25:23,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:25:23,964 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:25:23,964 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 11:25:24,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:25:24,518 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:25:24,524 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:25:24,525 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:25:24,526 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:25:24,527 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label54.c [2020-09-21 11:25:24,588 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0f70d723b/bbbc6006f2fa4523acf88e27f6e7b0d0/FLAGdf0a92ed2 [2020-09-21 11:25:25,283 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:25:25,284 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label54.c [2020-09-21 11:25:25,299 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0f70d723b/bbbc6006f2fa4523acf88e27f6e7b0d0/FLAGdf0a92ed2 [2020-09-21 11:25:25,483 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0f70d723b/bbbc6006f2fa4523acf88e27f6e7b0d0 [2020-09-21 11:25:25,499 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:25:25,507 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:25:25,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:25:25,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:25:25,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:25:25,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:25:25" (1/1) ... [2020-09-21 11:25:25,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f78b0b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:25, skipping insertion in model container [2020-09-21 11:25:25,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:25:25" (1/1) ... [2020-09-21 11:25:25,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:25:25,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:25:26,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:25:26,084 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:25:26,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:25:26,403 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:25:26,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:26 WrapperNode [2020-09-21 11:25:26,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:25:26,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:25:26,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:25:26,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:25:26,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:26" (1/1) ... [2020-09-21 11:25:26,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:26" (1/1) ... [2020-09-21 11:25:26,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:26" (1/1) ... [2020-09-21 11:25:26,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:26" (1/1) ... [2020-09-21 11:25:26,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:26" (1/1) ... [2020-09-21 11:25:26,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:26" (1/1) ... [2020-09-21 11:25:26,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:26" (1/1) ... [2020-09-21 11:25:26,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:25:26,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:25:26,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:25:26,513 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:25:26,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:26" (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 11:25:26,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:25:26,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:25:26,637 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-21 11:25:26,637 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:25:26,638 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-21 11:25:26,638 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:25:26,638 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:25:26,638 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 11:25:26,638 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:25:26,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:25:26,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:25:27,965 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:25:27,966 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 11:25:27,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:25:27 BoogieIcfgContainer [2020-09-21 11:25:27,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:25:27,981 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:25:27,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:25:27,986 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:25:27,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:25:25" (1/3) ... [2020-09-21 11:25:27,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df57da5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:25:27, skipping insertion in model container [2020-09-21 11:25:27,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:26" (2/3) ... [2020-09-21 11:25:27,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df57da5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:25:27, skipping insertion in model container [2020-09-21 11:25:27,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:25:27" (3/3) ... [2020-09-21 11:25:27,992 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label54.c [2020-09-21 11:25:28,004 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:25:28,020 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:25:28,043 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:25:28,079 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:25:28,079 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:25:28,079 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:25:28,079 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:25:28,080 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:25:28,080 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:25:28,080 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:25:28,080 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:25:28,108 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-09-21 11:25:28,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-09-21 11:25:28,125 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:28,126 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:28,127 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:28,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:28,135 INFO L82 PathProgramCache]: Analyzing trace with hash -622531154, now seen corresponding path program 1 times [2020-09-21 11:25:28,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:28,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1830815909] [2020-09-21 11:25:28,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:28,546 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:28,547 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:28,547 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:28,547 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:28,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-21 11:25:28,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:28,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-21 11:25:28,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:28,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:25:28,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:25:28,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-21 11:25:28,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:28,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:28,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:28,838 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:28,839 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:28,839 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:28,839 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:28,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:28,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:28,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:25:28,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:28,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:28,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:28,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:25:28,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:28,959 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 11:25:28,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1830815909] [2020-09-21 11:25:28,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:25:28,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:25:28,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814918760] [2020-09-21 11:25:28,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:25:28,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:28,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:25:28,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:25:29,001 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 4 states. [2020-09-21 11:25:30,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:30,531 INFO L93 Difference]: Finished difference Result 557 states and 955 transitions. [2020-09-21 11:25:30,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:25:30,533 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 128 [2020-09-21 11:25:30,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:30,568 INFO L225 Difference]: With dead ends: 557 [2020-09-21 11:25:30,568 INFO L226 Difference]: Without dead ends: 286 [2020-09-21 11:25:30,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:25:30,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-09-21 11:25:30,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 282. [2020-09-21 11:25:30,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-09-21 11:25:30,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 374 transitions. [2020-09-21 11:25:30,697 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 374 transitions. Word has length 128 [2020-09-21 11:25:30,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:30,698 INFO L479 AbstractCegarLoop]: Abstraction has 282 states and 374 transitions. [2020-09-21 11:25:30,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:25:30,699 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 374 transitions. [2020-09-21 11:25:30,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-21 11:25:30,704 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:30,705 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:25:30,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:25:30,705 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:30,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:30,706 INFO L82 PathProgramCache]: Analyzing trace with hash -690347895, now seen corresponding path program 1 times [2020-09-21 11:25:30,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:30,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [311736869] [2020-09-21 11:25:30,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:30,832 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:30,832 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:30,833 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:30,833 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:30,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-09-21 11:25:30,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:30,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-21 11:25:30,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:30,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:25:30,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:25:30,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-09-21 11:25:30,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:31,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:31,133 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:31,134 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:31,134 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:31,134 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:31,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:31,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:31,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:25:31,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:31,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:31,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:31,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:25:31,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:31,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:31,176 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:31,176 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:31,177 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:31,177 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:31,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:25:31,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:31,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:31,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:31,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:31,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:31,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:25:31,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:31,215 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 11:25:31,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [311736869] [2020-09-21 11:25:31,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:31,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:25:31,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505796190] [2020-09-21 11:25:31,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:25:31,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:31,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:25:31,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:25:31,223 INFO L87 Difference]: Start difference. First operand 282 states and 374 transitions. Second operand 5 states. [2020-09-21 11:25:32,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:32,513 INFO L93 Difference]: Finished difference Result 836 states and 1129 transitions. [2020-09-21 11:25:32,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:25:32,514 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 136 [2020-09-21 11:25:32,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:32,520 INFO L225 Difference]: With dead ends: 836 [2020-09-21 11:25:32,521 INFO L226 Difference]: Without dead ends: 560 [2020-09-21 11:25:32,523 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:25:32,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-09-21 11:25:32,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 556. [2020-09-21 11:25:32,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-09-21 11:25:32,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 724 transitions. [2020-09-21 11:25:32,571 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 724 transitions. Word has length 136 [2020-09-21 11:25:32,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:32,572 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 724 transitions. [2020-09-21 11:25:32,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:25:32,572 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 724 transitions. [2020-09-21 11:25:32,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-21 11:25:32,578 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:32,579 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:32,579 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:25:32,579 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:32,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:32,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1619031100, now seen corresponding path program 1 times [2020-09-21 11:25:32,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:32,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2000923675] [2020-09-21 11:25:32,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:32,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:32,642 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:32,642 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:32,642 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:32,643 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:32,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-09-21 11:25:32,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:32,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:25:32,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:32,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:32,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-21 11:25:32,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:25:32,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:32,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:32,736 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:32,736 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:32,736 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:32,736 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:32,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:32,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:32,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:32,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:32,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:32,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:32,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:32,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:32,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:32,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:32,765 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:32,765 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:32,765 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:32,765 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:32,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:25:32,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:32,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:32,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:32,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:32,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:32,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:25:32,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:32,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:25:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:32,790 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:32,790 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:32,790 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:32,791 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:32,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:25:32,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:32,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:25:32,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:32,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:32,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:32,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:25:32,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:32,902 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:25:32,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2000923675] [2020-09-21 11:25:32,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:32,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:25:32,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133756533] [2020-09-21 11:25:32,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:25:32,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:32,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:25:32,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:25:32,909 INFO L87 Difference]: Start difference. First operand 556 states and 724 transitions. Second operand 7 states. [2020-09-21 11:25:34,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:34,372 INFO L93 Difference]: Finished difference Result 1539 states and 2026 transitions. [2020-09-21 11:25:34,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:25:34,372 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 151 [2020-09-21 11:25:34,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:34,379 INFO L225 Difference]: With dead ends: 1539 [2020-09-21 11:25:34,379 INFO L226 Difference]: Without dead ends: 989 [2020-09-21 11:25:34,381 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 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 11:25:34,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2020-09-21 11:25:34,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 842. [2020-09-21 11:25:34,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 842 states. [2020-09-21 11:25:34,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1069 transitions. [2020-09-21 11:25:34,421 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1069 transitions. Word has length 151 [2020-09-21 11:25:34,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:34,421 INFO L479 AbstractCegarLoop]: Abstraction has 842 states and 1069 transitions. [2020-09-21 11:25:34,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:25:34,421 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1069 transitions. [2020-09-21 11:25:34,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-09-21 11:25:34,427 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:34,427 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:34,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:25:34,428 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:34,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:34,429 INFO L82 PathProgramCache]: Analyzing trace with hash 760048421, now seen corresponding path program 1 times [2020-09-21 11:25:34,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:34,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [408494147] [2020-09-21 11:25:34,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:34,477 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:34,477 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:34,477 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:34,478 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:34,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-09-21 11:25:34,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:34,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:25:34,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:34,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:34,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-21 11:25:34,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:25:34,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:34,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:34,580 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:34,580 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:34,580 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:34,581 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:34,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:34,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:34,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:34,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:34,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:34,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:34,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:34,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:34,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:34,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:34,620 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:34,620 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:34,621 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:34,621 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:34,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:25:34,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:34,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:25:34,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:34,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:34,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:34,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:25:34,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:34,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:25:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:34,650 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:34,651 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:34,651 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:34,652 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:34,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:25:34,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:34,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:25:34,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:34,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:34,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:34,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:25:34,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:34,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-21 11:25:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:34,706 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:34,707 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:34,707 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:34,708 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:34,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:25:34,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:34,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:34,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:34,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:34,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:25:34,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:34,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:34,766 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-21 11:25:34,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [408494147] [2020-09-21 11:25:34,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:34,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:25:34,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878570914] [2020-09-21 11:25:34,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:25:34,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:34,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:25:34,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:25:34,771 INFO L87 Difference]: Start difference. First operand 842 states and 1069 transitions. Second operand 7 states. [2020-09-21 11:25:36,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:36,195 INFO L93 Difference]: Finished difference Result 2520 states and 3268 transitions. [2020-09-21 11:25:36,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 11:25:36,196 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 164 [2020-09-21 11:25:36,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:36,208 INFO L225 Difference]: With dead ends: 2520 [2020-09-21 11:25:36,208 INFO L226 Difference]: Without dead ends: 1684 [2020-09-21 11:25:36,212 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:25:36,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1684 states. [2020-09-21 11:25:36,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1414. [2020-09-21 11:25:36,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1414 states. [2020-09-21 11:25:36,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 1797 transitions. [2020-09-21 11:25:36,289 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 1797 transitions. Word has length 164 [2020-09-21 11:25:36,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:36,290 INFO L479 AbstractCegarLoop]: Abstraction has 1414 states and 1797 transitions. [2020-09-21 11:25:36,290 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:25:36,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 1797 transitions. [2020-09-21 11:25:36,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-21 11:25:36,297 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:36,297 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 11:25:36,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:25:36,298 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:36,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:36,298 INFO L82 PathProgramCache]: Analyzing trace with hash -920028558, now seen corresponding path program 1 times [2020-09-21 11:25:36,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:36,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [702781501] [2020-09-21 11:25:36,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:36,362 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:36,362 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:36,363 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:36,363 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:36,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-21 11:25:36,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:36,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:25:36,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:36,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:36,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-09-21 11:25:36,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:25:36,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:36,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:36,477 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:36,478 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:36,478 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:36,478 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:36,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:36,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:36,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:36,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:36,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:36,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:36,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:36,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:36,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:36,514 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:36,515 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:36,515 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:36,515 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:36,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-21 11:25:36,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:36,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:36,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:36,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:36,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:36,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-21 11:25:36,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:36,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 11:25:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:36,551 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:36,551 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:36,551 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:36,552 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:36,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:25:36,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:36,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:25:36,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:36,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:36,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:36,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:25:36,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:36,661 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 54 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:25:36,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [702781501] [2020-09-21 11:25:36,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:36,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:25:36,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53462234] [2020-09-21 11:25:36,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:25:36,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:36,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:25:36,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:25:36,664 INFO L87 Difference]: Start difference. First operand 1414 states and 1797 transitions. Second operand 7 states. [2020-09-21 11:25:38,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:38,803 INFO L93 Difference]: Finished difference Result 3605 states and 5026 transitions. [2020-09-21 11:25:38,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:25:38,804 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 176 [2020-09-21 11:25:38,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:38,818 INFO L225 Difference]: With dead ends: 3605 [2020-09-21 11:25:38,818 INFO L226 Difference]: Without dead ends: 2197 [2020-09-21 11:25:38,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:25:38,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2197 states. [2020-09-21 11:25:38,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2197 to 1700. [2020-09-21 11:25:38,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1700 states. [2020-09-21 11:25:38,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 2132 transitions. [2020-09-21 11:25:38,925 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 2132 transitions. Word has length 176 [2020-09-21 11:25:38,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:38,925 INFO L479 AbstractCegarLoop]: Abstraction has 1700 states and 2132 transitions. [2020-09-21 11:25:38,925 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:25:38,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 2132 transitions. [2020-09-21 11:25:38,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-09-21 11:25:38,935 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:38,936 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:25:38,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:25:38,936 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:38,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:38,937 INFO L82 PathProgramCache]: Analyzing trace with hash 990494698, now seen corresponding path program 1 times [2020-09-21 11:25:38,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:38,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [428187846] [2020-09-21 11:25:38,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:39,023 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:39,023 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:39,023 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:39,024 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:39,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-09-21 11:25:39,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:39,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:25:39,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:39,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:39,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-21 11:25:39,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-21 11:25:39,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:39,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:39,151 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:39,151 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:39,151 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:39,152 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:39,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:39,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:39,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:39,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:39,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:39,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:39,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:39,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:39,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:39,182 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:39,183 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:39,183 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:39,183 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:39,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-21 11:25:39,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:39,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:39,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:39,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:39,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:39,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:25:39,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:39,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-21 11:25:39,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:39,219 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:39,219 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:39,220 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:39,221 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:39,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-21 11:25:39,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:39,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:25:39,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:39,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:39,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:39,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:25:39,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:39,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-21 11:25:39,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:39,319 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:39,319 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:39,320 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:39,320 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:39,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:25:39,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:39,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:25:39,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:39,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:39,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:25:39,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:39,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:39,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-21 11:25:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:39,333 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:39,333 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:39,333 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:39,334 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:39,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:25:39,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:39,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:39,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:39,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:39,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:25:39,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:39,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:39,400 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 110 proven. 24 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-21 11:25:39,400 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [428187846] [2020-09-21 11:25:39,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:39,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:25:39,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478036945] [2020-09-21 11:25:39,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:25:39,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:39,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:25:39,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:25:39,403 INFO L87 Difference]: Start difference. First operand 1700 states and 2132 transitions. Second operand 7 states. [2020-09-21 11:25:40,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:40,997 INFO L93 Difference]: Finished difference Result 3813 states and 4895 transitions. [2020-09-21 11:25:40,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:25:41,000 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 226 [2020-09-21 11:25:41,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:41,015 INFO L225 Difference]: With dead ends: 3813 [2020-09-21 11:25:41,015 INFO L226 Difference]: Without dead ends: 2119 [2020-09-21 11:25:41,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:25:41,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2119 states. [2020-09-21 11:25:41,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2119 to 1843. [2020-09-21 11:25:41,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1843 states. [2020-09-21 11:25:41,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1843 states to 1843 states and 2329 transitions. [2020-09-21 11:25:41,082 INFO L78 Accepts]: Start accepts. Automaton has 1843 states and 2329 transitions. Word has length 226 [2020-09-21 11:25:41,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:41,082 INFO L479 AbstractCegarLoop]: Abstraction has 1843 states and 2329 transitions. [2020-09-21 11:25:41,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:25:41,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1843 states and 2329 transitions. [2020-09-21 11:25:41,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-09-21 11:25:41,090 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:41,090 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:25:41,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:25:41,091 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:41,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:41,091 INFO L82 PathProgramCache]: Analyzing trace with hash -464153786, now seen corresponding path program 1 times [2020-09-21 11:25:41,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:41,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1048273112] [2020-09-21 11:25:41,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:41,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:41,175 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-21 11:25:41,176 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -38 [2020-09-21 11:25:41,176 FATAL L256 erpolLogProxyWrapper]: Difference in width: 38 [2020-09-21 11:25:41,176 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:41,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-21 11:25:41,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:41,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:25:41,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:41,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:41,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-09-21 11:25:41,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-21 11:25:41,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:41,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:41,298 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:41,298 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:41,298 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:41,298 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:41,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:41,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:41,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:41,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:41,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:41,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:41,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:41,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:41,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:41,332 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:41,332 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:41,333 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:41,333 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:41,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-21 11:25:41,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:41,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:41,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:41,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:41,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:41,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-21 11:25:41,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:41,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 11:25:41,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:41,377 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:41,378 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:41,378 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:41,378 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:41,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-21 11:25:41,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:41,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:25:41,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:41,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:41,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:41,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:25:41,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:41,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-21 11:25:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:41,437 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:41,437 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:41,438 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:41,438 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:41,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:25:41,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:41,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:41,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:41,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:41,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:25:41,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:41,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:41,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-21 11:25:41,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:41,451 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:41,451 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:41,495 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:41,496 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:41,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:25:41,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:41,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-21 11:25:41,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:41,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:41,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:25:41,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:41,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:41,570 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 138 proven. 24 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-21 11:25:41,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1048273112] [2020-09-21 11:25:41,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:41,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 11:25:41,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151431384] [2020-09-21 11:25:41,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:25:41,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:41,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:25:41,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:25:41,573 INFO L87 Difference]: Start difference. First operand 1843 states and 2329 transitions. Second operand 8 states. [2020-09-21 11:25:43,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:43,710 INFO L93 Difference]: Finished difference Result 4874 states and 6530 transitions. [2020-09-21 11:25:43,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:25:43,711 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2020-09-21 11:25:43,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:43,731 INFO L225 Difference]: With dead ends: 4874 [2020-09-21 11:25:43,732 INFO L226 Difference]: Without dead ends: 3037 [2020-09-21 11:25:43,739 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:25:43,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3037 states. [2020-09-21 11:25:43,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3037 to 2677. [2020-09-21 11:25:43,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2677 states. [2020-09-21 11:25:43,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3293 transitions. [2020-09-21 11:25:43,857 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3293 transitions. Word has length 240 [2020-09-21 11:25:43,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:43,858 INFO L479 AbstractCegarLoop]: Abstraction has 2677 states and 3293 transitions. [2020-09-21 11:25:43,858 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:25:43,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3293 transitions. [2020-09-21 11:25:43,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-09-21 11:25:43,870 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:43,870 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 11:25:43,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:25:43,871 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:43,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:43,871 INFO L82 PathProgramCache]: Analyzing trace with hash -287056702, now seen corresponding path program 1 times [2020-09-21 11:25:43,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:43,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [569246693] [2020-09-21 11:25:43,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:44,004 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:44,004 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:44,004 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:44,004 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:44,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-09-21 11:25:44,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:44,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:25:44,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:44,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:44,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-09-21 11:25:44,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-09-21 11:25:44,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:44,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:44,157 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:44,158 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:44,158 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:44,158 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:44,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:44,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:44,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:44,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:44,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:44,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:44,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:44,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:44,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:44,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:44,183 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:44,183 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:44,183 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:44,183 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:44,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-21 11:25:44,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:44,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:44,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:44,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:44,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:44,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:44,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:44,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:25:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:44,214 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:44,214 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:44,214 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:44,215 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:44,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-21 11:25:44,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:44,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:44,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:44,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:44,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:44,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:44,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:44,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-21 11:25:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:44,241 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:44,241 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:44,241 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:44,241 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:44,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:25:44,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:44,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:44,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:44,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:44,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:44,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:44,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:44,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-21 11:25:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:44,256 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:44,257 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:44,257 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:44,257 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:44,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:25:44,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:44,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:25:44,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:44,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:44,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:44,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 11:25:44,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:44,336 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 135 proven. 4 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-09-21 11:25:44,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [569246693] [2020-09-21 11:25:44,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:44,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:25:44,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257665685] [2020-09-21 11:25:44,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:25:44,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:44,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:25:44,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:25:44,338 INFO L87 Difference]: Start difference. First operand 2677 states and 3293 transitions. Second operand 5 states. [2020-09-21 11:25:45,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:45,632 INFO L93 Difference]: Finished difference Result 5767 states and 7243 transitions. [2020-09-21 11:25:45,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:25:45,633 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 270 [2020-09-21 11:25:45,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:45,654 INFO L225 Difference]: With dead ends: 5767 [2020-09-21 11:25:45,654 INFO L226 Difference]: Without dead ends: 3096 [2020-09-21 11:25:45,664 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:25:45,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3096 states. [2020-09-21 11:25:45,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3096 to 3090. [2020-09-21 11:25:45,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3090 states. [2020-09-21 11:25:45,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3090 states to 3090 states and 3758 transitions. [2020-09-21 11:25:45,786 INFO L78 Accepts]: Start accepts. Automaton has 3090 states and 3758 transitions. Word has length 270 [2020-09-21 11:25:45,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:45,787 INFO L479 AbstractCegarLoop]: Abstraction has 3090 states and 3758 transitions. [2020-09-21 11:25:45,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:25:45,787 INFO L276 IsEmpty]: Start isEmpty. Operand 3090 states and 3758 transitions. [2020-09-21 11:25:45,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-09-21 11:25:45,804 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:45,805 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:25:45,805 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:25:45,805 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:45,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:45,806 INFO L82 PathProgramCache]: Analyzing trace with hash 2011849038, now seen corresponding path program 1 times [2020-09-21 11:25:45,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:45,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [203449846] [2020-09-21 11:25:45,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:45,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:45,976 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:45,977 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:45,977 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:45,977 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:45,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 345 [2020-09-21 11:25:45,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:45,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:25:45,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:45,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:45,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 217 [2020-09-21 11:25:45,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-09-21 11:25:45,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:46,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:46,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:46,196 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:46,196 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:46,197 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:46,197 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:46,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:46,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:46,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:46,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:46,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:46,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:46,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:46,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:46,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:46,236 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:46,236 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:46,237 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:46,237 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:46,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-21 11:25:46,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:46,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:46,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:46,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:46,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:46,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:46,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:46,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:25:46,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:46,276 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:46,277 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:46,277 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:46,277 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:46,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-21 11:25:46,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:46,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:46,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:46,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:46,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:46,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:46,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:46,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-21 11:25:46,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:46,308 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:46,309 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:46,309 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:46,309 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:46,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:25:46,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:46,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:46,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:46,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:46,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:46,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:46,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:46,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-21 11:25:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:46,348 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:46,349 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:46,349 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:46,349 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:46,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-21 11:25:46,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:46,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:25:46,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:46,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:46,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:46,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-21 11:25:46,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:46,622 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 193 proven. 4 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-09-21 11:25:46,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [203449846] [2020-09-21 11:25:46,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:46,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:25:46,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601020201] [2020-09-21 11:25:46,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:25:46,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:46,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:25:46,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:25:46,630 INFO L87 Difference]: Start difference. First operand 3090 states and 3758 transitions. Second operand 5 states. [2020-09-21 11:25:47,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:47,704 INFO L93 Difference]: Finished difference Result 6023 states and 7246 transitions. [2020-09-21 11:25:47,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:25:47,705 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 328 [2020-09-21 11:25:47,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:47,706 INFO L225 Difference]: With dead ends: 6023 [2020-09-21 11:25:47,706 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 11:25:47,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:25:47,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 11:25:47,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 11:25:47,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 11:25:47,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 11:25:47,718 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 328 [2020-09-21 11:25:47,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:47,719 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 11:25:47,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:25:47,719 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 11:25:47,719 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 11:25:47,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:25:47,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 11:25:48,054 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2020-09-21 11:25:48,494 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2020-09-21 11:25:48,664 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2020-09-21 11:25:48,848 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2020-09-21 11:25:49,668 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 131 [2020-09-21 11:25:50,486 WARN L193 SmtUtils]: Spent 815.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 131 [2020-09-21 11:25:51,753 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 161 DAG size of output: 80 [2020-09-21 11:25:52,535 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 50 [2020-09-21 11:25:53,352 WARN L193 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 50 [2020-09-21 11:25:53,357 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:25:53,359 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-09-21 11:25:53,359 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:25:53,360 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-09-21 11:25:53,360 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-09-21 11:25:53,360 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,360 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,360 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,360 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,360 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,360 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,360 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-09-21 11:25:53,361 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-09-21 11:25:53,361 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-09-21 11:25:53,361 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-09-21 11:25:53,361 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-09-21 11:25:53,361 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-09-21 11:25:53,361 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-09-21 11:25:53,361 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-09-21 11:25:53,361 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-09-21 11:25:53,362 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-09-21 11:25:53,362 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,362 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,362 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,362 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,362 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,362 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,362 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-09-21 11:25:53,363 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-09-21 11:25:53,363 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-09-21 11:25:53,363 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-09-21 11:25:53,363 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-09-21 11:25:53,363 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-09-21 11:25:53,363 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-09-21 11:25:53,363 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-09-21 11:25:53,363 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-09-21 11:25:53,363 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-09-21 11:25:53,363 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-09-21 11:25:53,364 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 542) no Hoare annotation was computed. [2020-09-21 11:25:53,364 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-09-21 11:25:53,364 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-09-21 11:25:53,364 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-09-21 11:25:53,364 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-09-21 11:25:53,364 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,364 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,364 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,364 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,364 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,365 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-09-21 11:25:53,365 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-09-21 11:25:53,365 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-09-21 11:25:53,365 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-09-21 11:25:53,365 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-09-21 11:25:53,365 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-09-21 11:25:53,365 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-09-21 11:25:53,365 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-09-21 11:25:53,366 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-09-21 11:25:53,366 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,366 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,366 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,366 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,366 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,366 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-09-21 11:25:53,366 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-09-21 11:25:53,367 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-09-21 11:25:53,367 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-09-21 11:25:53,367 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-09-21 11:25:53,367 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-09-21 11:25:53,367 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-09-21 11:25:53,367 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-09-21 11:25:53,367 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-09-21 11:25:53,367 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-09-21 11:25:53,368 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-09-21 11:25:53,368 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-09-21 11:25:53,368 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-09-21 11:25:53,368 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,368 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,368 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,368 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,368 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,369 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-09-21 11:25:53,369 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-09-21 11:25:53,369 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-09-21 11:25:53,369 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-09-21 11:25:53,369 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-09-21 11:25:53,369 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-09-21 11:25:53,369 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-09-21 11:25:53,369 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-09-21 11:25:53,370 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-09-21 11:25:53,370 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,370 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,370 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,370 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,370 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,370 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,370 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-09-21 11:25:53,370 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,371 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-09-21 11:25:53,371 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-09-21 11:25:53,371 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-09-21 11:25:53,371 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-09-21 11:25:53,371 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-09-21 11:25:53,371 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-09-21 11:25:53,371 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-09-21 11:25:53,371 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-09-21 11:25:53,371 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-09-21 11:25:53,372 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-09-21 11:25:53,372 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-09-21 11:25:53,372 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-09-21 11:25:53,372 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-09-21 11:25:53,372 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,372 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,372 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,372 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,372 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,373 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-09-21 11:25:53,373 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-09-21 11:25:53,373 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-09-21 11:25:53,373 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-09-21 11:25:53,373 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-09-21 11:25:53,373 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-09-21 11:25:53,373 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-09-21 11:25:53,373 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-09-21 11:25:53,373 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,374 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,374 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,374 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,374 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,374 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-09-21 11:25:53,374 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-09-21 11:25:53,374 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-09-21 11:25:53,375 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-09-21 11:25:53,375 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-09-21 11:25:53,375 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-09-21 11:25:53,375 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-09-21 11:25:53,375 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-09-21 11:25:53,375 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-09-21 11:25:53,375 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-09-21 11:25:53,376 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse5 (not (= |old(~a17~0)| 1))) (.cse7 (= ~a17~0 1)) (.cse9 (not (= |old(~a21~0)| 1))) (.cse11 (= ~a16~0 4)) (.cse12 (not (= 4 |old(~a16~0)|))) (.cse13 (= |old(~a7~0)| 1)) (.cse0 (= ~a17~0 |old(~a17~0)|)) (.cse6 (= ~a21~0 ~a20~0)) (.cse10 (not (<= 15 |old(~a8~0)|))) (.cse16 (not (= 6 |old(~a16~0)|))) (.cse8 (not (= |old(~a20~0)| |old(~a21~0)|))) (.cse17 (not (= 5 |old(~a16~0)|))) (.cse1 (= ~a7~0 |old(~a7~0)|)) (.cse14 (= ~a21~0 |old(~a21~0)|)) (.cse2 (= ~a20~0 |old(~a20~0)|)) (.cse3 (= ~a16~0 |old(~a16~0)|)) (.cse4 (= ~a8~0 |old(~a8~0)|)) (.cse15 (not (<= |old(~a20~0)| 0)))) (and (or (not (= 0 |old(~a21~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~a21~0 0))) (or .cse5 (and .cse1 .cse2 .cse3 .cse4 .cse6 .cse7) .cse8 .cse9) (or .cse5 .cse10 (and .cse1 (= ~a21~0 1) .cse2 .cse4 .cse11 .cse7) .cse9 .cse12 .cse13) (or (and .cse0 .cse1 .cse14 .cse2 .cse4 .cse11) .cse12 .cse13 .cse15) (or .cse8 (and .cse0 .cse1 .cse2 .cse4 .cse11 .cse6) .cse12 .cse13) (or .cse10 .cse16 (and .cse0 .cse1 .cse14 .cse2 .cse3 .cse4) .cse15) (or .cse10 (and .cse0 .cse1 .cse14 .cse2 .cse4 (= 5 ~a16~0)) .cse17 .cse15) (or (and .cse1 .cse0 .cse14 .cse3 .cse4 .cse6) (and (or .cse10 .cse16 .cse8) (or .cse8 .cse17))) (or (not (= |old(~a17~0)| |old(~a20~0)|)) (and .cse1 (= ~a20~0 ~a17~0) .cse14 .cse2 .cse3 .cse4) .cse15))) [2020-09-21 11:25:53,376 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-09-21 11:25:53,376 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,376 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,376 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,376 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,376 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-09-21 11:25:53,377 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,377 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,377 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-09-21 11:25:53,377 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-09-21 11:25:53,377 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-09-21 11:25:53,377 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-09-21 11:25:53,377 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-09-21 11:25:53,377 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-09-21 11:25:53,378 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-09-21 11:25:53,378 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-09-21 11:25:53,378 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-09-21 11:25:53,378 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-09-21 11:25:53,378 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-09-21 11:25:53,378 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-09-21 11:25:53,378 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,378 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,378 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,379 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,379 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,379 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-09-21 11:25:53,379 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,379 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-09-21 11:25:53,379 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-09-21 11:25:53,379 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-09-21 11:25:53,379 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-09-21 11:25:53,380 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-09-21 11:25:53,380 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-09-21 11:25:53,380 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-09-21 11:25:53,380 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-09-21 11:25:53,380 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-09-21 11:25:53,380 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-09-21 11:25:53,380 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-09-21 11:25:53,380 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-09-21 11:25:53,380 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-09-21 11:25:53,381 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-09-21 11:25:53,381 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,381 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,381 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,381 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,381 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,381 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:53,381 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-09-21 11:25:53,381 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-09-21 11:25:53,382 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-09-21 11:25:53,382 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-09-21 11:25:53,382 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-09-21 11:25:53,382 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-09-21 11:25:53,382 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-09-21 11:25:53,382 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-09-21 11:25:53,382 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-09-21 11:25:53,382 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-09-21 11:25:53,383 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:25:53,383 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (= ~a21~0 ~a20~0) (= 5 ~a16~0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-09-21 11:25:53,383 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 11:25:53,383 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:25:53,383 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 |old(~a8~0)|) (= ~a21~0 ~a20~0) (= 5 ~a16~0)) (not (= |old(~a17~0)| |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| |old(~a21~0)|)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1))) [2020-09-21 11:25:53,383 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-09-21 11:25:53,383 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse6 (= 5 ~a16~0)) (.cse0 (= ~a21~0 1)) (.cse2 (= ~a17~0 1)) (.cse1 (= ~a21~0 ~a20~0)) (.cse3 (= ~a16~0 6)) (.cse4 (<= 15 ~a8~0)) (.cse7 (= ~a16~0 4)) (.cse8 (not (= ~a7~0 1))) (.cse5 (<= ~a20~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1 .cse4) (= ~a21~0 0) (and (= ~a20~0 ~a17~0) .cse5) (not (= |old(~a21~0)| 1)) (and .cse1 .cse6) (and .cse6 .cse4 .cse5) (not (= |old(~a17~0)| 1)) (and .cse0 .cse7 .cse8 .cse4 .cse2) (and .cse1 .cse7 .cse8) (not (<= 15 |old(~a8~0)|)) (and .cse3 .cse4 .cse5) (not (= |old(~a20~0)| |old(~a21~0)|)) (and .cse7 .cse8 .cse5) (not (= 5 |old(~a16~0)|)))) [2020-09-21 11:25:53,384 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-09-21 11:25:53,384 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-09-21 11:25:53,384 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse6 (= 5 ~a16~0)) (.cse0 (= ~a21~0 1)) (.cse2 (= ~a17~0 1)) (.cse1 (= ~a21~0 ~a20~0)) (.cse3 (= ~a16~0 6)) (.cse4 (<= 15 ~a8~0)) (.cse7 (= ~a16~0 4)) (.cse8 (not (= ~a7~0 1))) (.cse5 (<= ~a20~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1 .cse4) (= ~a21~0 0) (and (= ~a20~0 ~a17~0) .cse5) (not (= |old(~a21~0)| 1)) (and .cse1 .cse6) (and .cse6 .cse4 .cse5) (not (= |old(~a17~0)| 1)) (and .cse0 .cse7 .cse8 .cse4 .cse2) (and .cse1 .cse7 .cse8) (not (<= 15 |old(~a8~0)|)) (and .cse3 .cse4 .cse5) (not (= |old(~a20~0)| |old(~a21~0)|)) (and .cse7 .cse8 .cse5) (not (= 5 |old(~a16~0)|)))) [2020-09-21 11:25:53,384 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-09-21 11:25:53,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:25:53 BoogieIcfgContainer [2020-09-21 11:25:53,411 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:25:53,413 INFO L168 Benchmark]: Toolchain (without parser) took 27913.05 ms. Allocated memory was 142.6 MB in the beginning and 596.6 MB in the end (delta: 454.0 MB). Free memory was 104.0 MB in the beginning and 517.9 MB in the end (delta: -413.9 MB). Peak memory consumption was 476.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:25:53,414 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 142.6 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:25:53,415 INFO L168 Benchmark]: CACSL2BoogieTranslator took 892.40 ms. Allocated memory was 142.6 MB in the beginning and 206.6 MB in the end (delta: 64.0 MB). Free memory was 103.5 MB in the beginning and 172.7 MB in the end (delta: -69.2 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:25:53,415 INFO L168 Benchmark]: Boogie Preprocessor took 107.97 ms. Allocated memory is still 206.6 MB. Free memory was 172.7 MB in the beginning and 168.2 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:25:53,416 INFO L168 Benchmark]: RCFGBuilder took 1466.97 ms. Allocated memory was 206.6 MB in the beginning and 233.8 MB in the end (delta: 27.3 MB). Free memory was 167.5 MB in the beginning and 171.2 MB in the end (delta: -3.7 MB). Peak memory consumption was 76.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:25:53,417 INFO L168 Benchmark]: TraceAbstraction took 25429.79 ms. Allocated memory was 233.8 MB in the beginning and 596.6 MB in the end (delta: 362.8 MB). Free memory was 169.9 MB in the beginning and 517.9 MB in the end (delta: -348.0 MB). Peak memory consumption was 451.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:25:53,420 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 142.6 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 892.40 ms. Allocated memory was 142.6 MB in the beginning and 206.6 MB in the end (delta: 64.0 MB). Free memory was 103.5 MB in the beginning and 172.7 MB in the end (delta: -69.2 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.97 ms. Allocated memory is still 206.6 MB. Free memory was 172.7 MB in the beginning and 168.2 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1466.97 ms. Allocated memory was 206.6 MB in the beginning and 233.8 MB in the end (delta: 27.3 MB). Free memory was 167.5 MB in the beginning and 171.2 MB in the end (delta: -3.7 MB). Peak memory consumption was 76.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 25429.79 ms. Allocated memory was 233.8 MB in the beginning and 596.6 MB in the end (delta: 362.8 MB). Free memory was 169.9 MB in the beginning and 517.9 MB in the end (delta: -348.0 MB). Peak memory consumption was 451.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 542]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((((((a21 == 1 && a21 == a20) && a17 == 1) || ((a16 == 6 && a21 == a20) && 15 <= a8)) || a21 == 0) || (a20 == a17 && a20 <= 0)) || !(\old(a21) == 1)) || (a21 == a20 && 5 == a16)) || ((5 == a16 && 15 <= a8) && a20 <= 0)) || !(\old(a17) == 1)) || ((((a21 == 1 && a16 == 4) && !(a7 == 1)) && 15 <= a8) && a17 == 1)) || ((a21 == a20 && a16 == 4) && !(a7 == 1))) || !(15 <= \old(a8))) || ((a16 == 6 && 15 <= a8) && a20 <= 0)) || !(\old(a20) == \old(a21))) || ((a16 == 4 && !(a7 == 1)) && a20 <= 0)) || !(5 == \old(a16)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.6s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 14.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 270 SDtfs, 3111 SDslu, 327 SDs, 0 SdLazy, 7265 SolverSat, 1010 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 92 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3090occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 1564 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 117 PreInvPairs, 161 NumberOfFragments, 642 HoareAnnotationTreeSize, 117 FomulaSimplifications, 233844 FormulaSimplificationTreeSizeReduction, 2.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 28135 FormulaSimplificationTreeSizeReductionInter, 2.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1819 NumberOfCodeBlocks, 1819 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1810 ConstructedInterpolants, 0 QuantifiedInterpolants, 1007878 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 1088/1161 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...