/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 enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 22:46:21,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 22:46:21,193 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 22:46:21,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 22:46:21,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 22:46:21,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 22:46:21,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 22:46:21,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 22:46:21,250 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 22:46:21,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 22:46:21,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 22:46:21,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 22:46:21,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 22:46:21,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 22:46:21,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 22:46:21,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 22:46:21,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 22:46:21,264 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 22:46:21,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 22:46:21,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 22:46:21,275 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 22:46:21,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 22:46:21,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 22:46:21,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 22:46:21,288 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 22:46:21,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 22:46:21,289 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 22:46:21,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 22:46:21,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 22:46:21,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 22:46:21,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 22:46:21,295 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 22:46:21,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 22:46:21,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 22:46:21,297 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 22:46:21,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 22:46:21,298 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 22:46:21,298 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 22:46:21,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 22:46:21,299 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 22:46:21,301 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 22:46:21,301 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 [2020-08-18 22:46:21,339 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 22:46:21,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 22:46:21,341 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 22:46:21,341 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 22:46:21,341 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 22:46:21,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 22:46:21,342 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 22:46:21,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 22:46:21,342 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 22:46:21,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 22:46:21,343 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 22:46:21,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 22:46:21,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 22:46:21,344 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 22:46:21,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 22:46:21,344 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 22:46:21,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 22:46:21,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 22:46:21,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 22:46:21,345 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 22:46:21,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 22:46:21,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 22:46:21,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 22:46:21,346 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 22:46:21,346 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 22:46:21,346 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 22:46:21,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 22:46:21,346 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 22:46:21,347 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 22:46:21,347 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 -> enumeration-timeout=5;interpolation-heuristic=WIDEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDEST; [2020-08-18 22:46:21,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 22:46:21,648 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 22:46:21,651 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 22:46:21,652 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 22:46:21,653 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 22:46:21,654 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-08-18 22:46:21,715 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/10989c1ee/20e0326a2b504ed583e54fe138c971f3/FLAGe4fda5a6a [2020-08-18 22:46:22,305 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 22:46:22,306 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-08-18 22:46:22,323 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/10989c1ee/20e0326a2b504ed583e54fe138c971f3/FLAGe4fda5a6a [2020-08-18 22:46:22,556 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/10989c1ee/20e0326a2b504ed583e54fe138c971f3 [2020-08-18 22:46:22,565 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 22:46:22,566 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 22:46:22,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 22:46:22,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 22:46:22,571 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 22:46:22,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:46:22" (1/1) ... [2020-08-18 22:46:22,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16b81ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:46:22, skipping insertion in model container [2020-08-18 22:46:22,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:46:22" (1/1) ... [2020-08-18 22:46:22,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 22:46:22,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 22:46:23,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 22:46:23,214 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 22:46:23,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 22:46:23,346 INFO L208 MainTranslator]: Completed translation [2020-08-18 22:46:23,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:46:23 WrapperNode [2020-08-18 22:46:23,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 22:46:23,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 22:46:23,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 22:46:23,348 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 22:46:23,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:46:23" (1/1) ... [2020-08-18 22:46:23,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:46:23" (1/1) ... [2020-08-18 22:46:23,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:46:23" (1/1) ... [2020-08-18 22:46:23,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:46:23" (1/1) ... [2020-08-18 22:46:23,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:46:23" (1/1) ... [2020-08-18 22:46:23,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:46:23" (1/1) ... [2020-08-18 22:46:23,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:46:23" (1/1) ... [2020-08-18 22:46:23,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 22:46:23,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 22:46:23,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 22:46:23,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 22:46:23,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:46:23" (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 [2020-08-18 22:46:23,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 22:46:23,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 22:46:23,531 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-18 22:46:23,531 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 22:46:23,532 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-18 22:46:23,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 22:46:23,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 22:46:23,532 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-18 22:46:23,532 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 22:46:23,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 22:46:23,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 22:46:24,665 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 22:46:24,666 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-18 22:46:24,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:46:24 BoogieIcfgContainer [2020-08-18 22:46:24,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 22:46:24,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 22:46:24,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 22:46:24,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 22:46:24,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 10:46:22" (1/3) ... [2020-08-18 22:46:24,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78dad319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 10:46:24, skipping insertion in model container [2020-08-18 22:46:24,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:46:23" (2/3) ... [2020-08-18 22:46:24,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78dad319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 10:46:24, skipping insertion in model container [2020-08-18 22:46:24,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:46:24" (3/3) ... [2020-08-18 22:46:24,681 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label19.c [2020-08-18 22:46:24,691 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 22:46:24,700 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 22:46:24,715 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 22:46:24,743 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 22:46:24,743 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 22:46:24,744 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 22:46:24,744 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 22:46:24,744 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 22:46:24,744 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 22:46:24,745 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 22:46:24,745 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 22:46:24,771 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-08-18 22:46:24,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-08-18 22:46:24,787 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:46:24,788 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] [2020-08-18 22:46:24,789 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:46:24,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:46:24,796 INFO L82 PathProgramCache]: Analyzing trace with hash 797442718, now seen corresponding path program 1 times [2020-08-18 22:46:24,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:46:24,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [131937702] [2020-08-18 22:46:24,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:46:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:25,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:46:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:25,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 22:46:25,421 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [131937702] [2020-08-18 22:46:25,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:46:25,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 22:46:25,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307709672] [2020-08-18 22:46:25,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 22:46:25,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:46:25,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 22:46:25,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 22:46:25,456 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 5 states. [2020-08-18 22:46:27,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:46:27,325 INFO L93 Difference]: Finished difference Result 627 states and 1073 transitions. [2020-08-18 22:46:27,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 22:46:27,327 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 98 [2020-08-18 22:46:27,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:46:27,344 INFO L225 Difference]: With dead ends: 627 [2020-08-18 22:46:27,345 INFO L226 Difference]: Without dead ends: 327 [2020-08-18 22:46:27,353 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-18 22:46:27,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-08-18 22:46:27,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 319. [2020-08-18 22:46:27,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-08-18 22:46:27,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 480 transitions. [2020-08-18 22:46:27,435 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 480 transitions. Word has length 98 [2020-08-18 22:46:27,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:46:27,436 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 480 transitions. [2020-08-18 22:46:27,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 22:46:27,436 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 480 transitions. [2020-08-18 22:46:27,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-08-18 22:46:27,443 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:46:27,444 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-18 22:46:27,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 22:46:27,444 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:46:27,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:46:27,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1720377347, now seen corresponding path program 1 times [2020-08-18 22:46:27,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:46:27,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1311653967] [2020-08-18 22:46:27,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:46:27,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:27,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:46:27,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:27,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 22:46:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:27,674 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 22:46:27,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1311653967] [2020-08-18 22:46:27,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:46:27,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 22:46:27,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91877697] [2020-08-18 22:46:27,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 22:46:27,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:46:27,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 22:46:27,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 22:46:27,679 INFO L87 Difference]: Start difference. First operand 319 states and 480 transitions. Second operand 8 states. [2020-08-18 22:46:28,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:46:28,603 INFO L93 Difference]: Finished difference Result 635 states and 968 transitions. [2020-08-18 22:46:28,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-18 22:46:28,607 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 113 [2020-08-18 22:46:28,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:46:28,614 INFO L225 Difference]: With dead ends: 635 [2020-08-18 22:46:28,614 INFO L226 Difference]: Without dead ends: 322 [2020-08-18 22:46:28,618 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-08-18 22:46:28,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-08-18 22:46:28,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 310. [2020-08-18 22:46:28,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2020-08-18 22:46:28,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 437 transitions. [2020-08-18 22:46:28,674 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 437 transitions. Word has length 113 [2020-08-18 22:46:28,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:46:28,675 INFO L479 AbstractCegarLoop]: Abstraction has 310 states and 437 transitions. [2020-08-18 22:46:28,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 22:46:28,675 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 437 transitions. [2020-08-18 22:46:28,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-08-18 22:46:28,681 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:46:28,681 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-18 22:46:28,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 22:46:28,682 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:46:28,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:46:28,682 INFO L82 PathProgramCache]: Analyzing trace with hash -540211274, now seen corresponding path program 1 times [2020-08-18 22:46:28,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:46:28,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2111385263] [2020-08-18 22:46:28,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:46:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:28,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:46:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:28,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 22:46:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:28,865 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 22:46:28,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2111385263] [2020-08-18 22:46:28,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:46:28,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 22:46:28,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039931820] [2020-08-18 22:46:28,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 22:46:28,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:46:28,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 22:46:28,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 22:46:28,868 INFO L87 Difference]: Start difference. First operand 310 states and 437 transitions. Second operand 8 states. [2020-08-18 22:46:30,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:46:30,705 INFO L93 Difference]: Finished difference Result 1088 states and 1576 transitions. [2020-08-18 22:46:30,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 22:46:30,711 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 120 [2020-08-18 22:46:30,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:46:30,717 INFO L225 Difference]: With dead ends: 1088 [2020-08-18 22:46:30,717 INFO L226 Difference]: Without dead ends: 784 [2020-08-18 22:46:30,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-08-18 22:46:30,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2020-08-18 22:46:30,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 612. [2020-08-18 22:46:30,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2020-08-18 22:46:30,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 841 transitions. [2020-08-18 22:46:30,763 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 841 transitions. Word has length 120 [2020-08-18 22:46:30,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:46:30,763 INFO L479 AbstractCegarLoop]: Abstraction has 612 states and 841 transitions. [2020-08-18 22:46:30,763 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 22:46:30,763 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 841 transitions. [2020-08-18 22:46:30,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-08-18 22:46:30,767 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:46:30,768 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:46:30,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 22:46:30,768 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:46:30,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:46:30,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1255105582, now seen corresponding path program 1 times [2020-08-18 22:46:30,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:46:30,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1514519567] [2020-08-18 22:46:30,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:46:30,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:30,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:46:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:30,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 22:46:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:31,065 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 22:46:31,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1514519567] [2020-08-18 22:46:31,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:46:31,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-18 22:46:31,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321255261] [2020-08-18 22:46:31,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 22:46:31,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:46:31,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 22:46:31,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-18 22:46:31,091 INFO L87 Difference]: Start difference. First operand 612 states and 841 transitions. Second operand 6 states. [2020-08-18 22:46:32,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:46:32,264 INFO L93 Difference]: Finished difference Result 1317 states and 1854 transitions. [2020-08-18 22:46:32,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 22:46:32,264 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2020-08-18 22:46:32,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:46:32,269 INFO L225 Difference]: With dead ends: 1317 [2020-08-18 22:46:32,270 INFO L226 Difference]: Without dead ends: 625 [2020-08-18 22:46:32,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-18 22:46:32,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2020-08-18 22:46:32,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 612. [2020-08-18 22:46:32,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2020-08-18 22:46:32,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 825 transitions. [2020-08-18 22:46:32,296 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 825 transitions. Word has length 124 [2020-08-18 22:46:32,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:46:32,297 INFO L479 AbstractCegarLoop]: Abstraction has 612 states and 825 transitions. [2020-08-18 22:46:32,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 22:46:32,297 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 825 transitions. [2020-08-18 22:46:32,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-18 22:46:32,300 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:46:32,300 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:46:32,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 22:46:32,301 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:46:32,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:46:32,301 INFO L82 PathProgramCache]: Analyzing trace with hash -569982810, now seen corresponding path program 1 times [2020-08-18 22:46:32,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:46:32,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1849121856] [2020-08-18 22:46:32,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:46:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:32,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:46:32,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:32,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 22:46:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:32,499 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 22:46:32,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1849121856] [2020-08-18 22:46:32,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:46:32,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 22:46:32,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413444388] [2020-08-18 22:46:32,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 22:46:32,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:46:32,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 22:46:32,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 22:46:32,501 INFO L87 Difference]: Start difference. First operand 612 states and 825 transitions. Second operand 8 states. [2020-08-18 22:46:34,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:46:34,279 INFO L93 Difference]: Finished difference Result 2151 states and 3020 transitions. [2020-08-18 22:46:34,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-18 22:46:34,280 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 128 [2020-08-18 22:46:34,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:46:34,289 INFO L225 Difference]: With dead ends: 2151 [2020-08-18 22:46:34,290 INFO L226 Difference]: Without dead ends: 1545 [2020-08-18 22:46:34,292 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-08-18 22:46:34,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2020-08-18 22:46:34,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1381. [2020-08-18 22:46:34,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1381 states. [2020-08-18 22:46:34,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1381 states to 1381 states and 1813 transitions. [2020-08-18 22:46:34,346 INFO L78 Accepts]: Start accepts. Automaton has 1381 states and 1813 transitions. Word has length 128 [2020-08-18 22:46:34,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:46:34,346 INFO L479 AbstractCegarLoop]: Abstraction has 1381 states and 1813 transitions. [2020-08-18 22:46:34,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 22:46:34,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1381 states and 1813 transitions. [2020-08-18 22:46:34,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-08-18 22:46:34,351 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:46:34,351 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:46:34,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 22:46:34,352 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:46:34,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:46:34,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1133595058, now seen corresponding path program 1 times [2020-08-18 22:46:34,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:46:34,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [354640015] [2020-08-18 22:46:34,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:46:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:34,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:46:34,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:34,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 22:46:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:34,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-08-18 22:46:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:34,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-08-18 22:46:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:34,557 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 44 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-08-18 22:46:34,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [354640015] [2020-08-18 22:46:34,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:46:34,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 22:46:34,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089427598] [2020-08-18 22:46:34,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 22:46:34,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:46:34,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 22:46:34,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-18 22:46:34,566 INFO L87 Difference]: Start difference. First operand 1381 states and 1813 transitions. Second operand 9 states. [2020-08-18 22:46:36,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:46:36,687 INFO L93 Difference]: Finished difference Result 3221 states and 4262 transitions. [2020-08-18 22:46:36,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-18 22:46:36,687 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 145 [2020-08-18 22:46:36,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:46:36,699 INFO L225 Difference]: With dead ends: 3221 [2020-08-18 22:46:36,700 INFO L226 Difference]: Without dead ends: 1846 [2020-08-18 22:46:36,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-08-18 22:46:36,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2020-08-18 22:46:36,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1689. [2020-08-18 22:46:36,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1689 states. [2020-08-18 22:46:36,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 2175 transitions. [2020-08-18 22:46:36,780 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 2175 transitions. Word has length 145 [2020-08-18 22:46:36,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:46:36,781 INFO L479 AbstractCegarLoop]: Abstraction has 1689 states and 2175 transitions. [2020-08-18 22:46:36,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 22:46:36,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 2175 transitions. [2020-08-18 22:46:36,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-08-18 22:46:36,789 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:46:36,789 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:46:36,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 22:46:36,790 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:46:36,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:46:36,790 INFO L82 PathProgramCache]: Analyzing trace with hash -377804758, now seen corresponding path program 1 times [2020-08-18 22:46:36,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:46:36,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883965412] [2020-08-18 22:46:36,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:46:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:36,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:46:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:36,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 22:46:36,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:36,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-18 22:46:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:36,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:46:37,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:37,032 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 51 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-08-18 22:46:37,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883965412] [2020-08-18 22:46:37,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:46:37,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-18 22:46:37,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915863942] [2020-08-18 22:46:37,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 22:46:37,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:46:37,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 22:46:37,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 22:46:37,036 INFO L87 Difference]: Start difference. First operand 1689 states and 2175 transitions. Second operand 8 states. [2020-08-18 22:46:39,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:46:39,547 INFO L93 Difference]: Finished difference Result 3745 states and 5141 transitions. [2020-08-18 22:46:39,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 22:46:39,547 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 149 [2020-08-18 22:46:39,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:46:39,564 INFO L225 Difference]: With dead ends: 3745 [2020-08-18 22:46:39,564 INFO L226 Difference]: Without dead ends: 2062 [2020-08-18 22:46:39,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-08-18 22:46:39,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2062 states. [2020-08-18 22:46:39,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2062 to 1999. [2020-08-18 22:46:39,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1999 states. [2020-08-18 22:46:39,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1999 states to 1999 states and 2509 transitions. [2020-08-18 22:46:39,647 INFO L78 Accepts]: Start accepts. Automaton has 1999 states and 2509 transitions. Word has length 149 [2020-08-18 22:46:39,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:46:39,647 INFO L479 AbstractCegarLoop]: Abstraction has 1999 states and 2509 transitions. [2020-08-18 22:46:39,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 22:46:39,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1999 states and 2509 transitions. [2020-08-18 22:46:39,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-08-18 22:46:39,653 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:46:39,654 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:46:39,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 22:46:39,654 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:46:39,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:46:39,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1040485852, now seen corresponding path program 1 times [2020-08-18 22:46:39,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:46:39,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1807954619] [2020-08-18 22:46:39,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:46:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:39,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:46:39,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:39,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 22:46:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:39,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:46:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:39,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 22:46:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:46:39,837 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 57 proven. 7 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-08-18 22:46:39,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1807954619] [2020-08-18 22:46:39,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:46:39,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 22:46:39,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103135109] [2020-08-18 22:46:39,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 22:46:39,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:46:39,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 22:46:39,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 22:46:39,840 INFO L87 Difference]: Start difference. First operand 1999 states and 2509 transitions. Second operand 7 states. [2020-08-18 22:46:41,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:46:41,811 INFO L93 Difference]: Finished difference Result 6107 states and 8119 transitions. [2020-08-18 22:46:41,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 22:46:41,812 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 157 [2020-08-18 22:46:41,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:46:41,813 INFO L225 Difference]: With dead ends: 6107 [2020-08-18 22:46:41,813 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 22:46:41,830 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-18 22:46:41,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 22:46:41,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 22:46:41,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 22:46:41,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 22:46:41,832 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 157 [2020-08-18 22:46:41,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:46:41,832 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 22:46:41,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 22:46:41,832 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 22:46:41,832 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 22:46:41,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-18 22:46:41,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 22:46:42,703 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 145 [2020-08-18 22:46:43,022 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 145 [2020-08-18 22:46:43,601 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 52 [2020-08-18 22:46:44,024 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 39 [2020-08-18 22:46:44,479 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 39 [2020-08-18 22:46:44,483 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-18 22:46:44,484 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-08-18 22:46:44,484 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 22:46:44,484 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,484 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,484 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,484 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,484 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,485 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-08-18 22:46:44,485 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-08-18 22:46:44,485 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-08-18 22:46:44,485 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-08-18 22:46:44,485 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-08-18 22:46:44,485 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-08-18 22:46:44,485 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-08-18 22:46:44,485 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-08-18 22:46:44,486 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-08-18 22:46:44,486 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-08-18 22:46:44,486 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-08-18 22:46:44,486 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-08-18 22:46:44,486 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-08-18 22:46:44,486 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,486 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,486 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,487 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,487 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-08-18 22:46:44,487 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,487 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-08-18 22:46:44,487 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-08-18 22:46:44,487 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-08-18 22:46:44,487 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-08-18 22:46:44,487 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-08-18 22:46:44,488 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-08-18 22:46:44,488 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-08-18 22:46:44,488 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-08-18 22:46:44,488 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-08-18 22:46:44,488 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-08-18 22:46:44,488 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-08-18 22:46:44,488 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-08-18 22:46:44,488 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-08-18 22:46:44,488 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-08-18 22:46:44,489 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-08-18 22:46:44,489 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,489 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,489 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,489 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,489 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,490 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 448) no Hoare annotation was computed. [2020-08-18 22:46:44,490 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-08-18 22:46:44,490 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-08-18 22:46:44,490 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-08-18 22:46:44,490 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-08-18 22:46:44,490 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-08-18 22:46:44,490 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-08-18 22:46:44,491 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-08-18 22:46:44,491 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-08-18 22:46:44,491 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-08-18 22:46:44,491 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-08-18 22:46:44,491 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-08-18 22:46:44,491 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,491 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,491 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,492 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,492 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,492 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-08-18 22:46:44,492 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-08-18 22:46:44,492 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-08-18 22:46:44,492 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-08-18 22:46:44,492 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-08-18 22:46:44,492 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-08-18 22:46:44,493 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-08-18 22:46:44,493 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-08-18 22:46:44,493 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-08-18 22:46:44,493 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-08-18 22:46:44,493 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-08-18 22:46:44,493 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-08-18 22:46:44,493 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-08-18 22:46:44,493 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,494 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,494 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,494 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,494 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,494 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-08-18 22:46:44,494 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-08-18 22:46:44,494 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-08-18 22:46:44,494 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-08-18 22:46:44,494 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-08-18 22:46:44,495 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-08-18 22:46:44,495 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-08-18 22:46:44,495 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-08-18 22:46:44,495 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-08-18 22:46:44,495 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-08-18 22:46:44,495 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-08-18 22:46:44,495 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-08-18 22:46:44,495 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-08-18 22:46:44,496 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-08-18 22:46:44,496 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-08-18 22:46:44,496 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-08-18 22:46:44,496 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,496 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,496 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,496 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,496 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-08-18 22:46:44,496 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,496 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-08-18 22:46:44,497 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,497 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-08-18 22:46:44,497 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-08-18 22:46:44,497 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-08-18 22:46:44,497 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,497 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,497 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-08-18 22:46:44,497 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-08-18 22:46:44,497 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-08-18 22:46:44,497 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-08-18 22:46:44,497 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-08-18 22:46:44,497 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-08-18 22:46:44,498 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-08-18 22:46:44,498 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-08-18 22:46:44,498 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-08-18 22:46:44,498 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-08-18 22:46:44,498 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-08-18 22:46:44,498 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,498 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,498 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,498 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,498 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,498 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,498 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-08-18 22:46:44,499 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-08-18 22:46:44,499 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-08-18 22:46:44,499 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-08-18 22:46:44,499 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-08-18 22:46:44,499 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-08-18 22:46:44,499 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-08-18 22:46:44,499 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-08-18 22:46:44,499 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-08-18 22:46:44,499 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-08-18 22:46:44,499 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-08-18 22:46:44,499 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,499 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,499 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,500 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,500 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,500 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,500 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-08-18 22:46:44,500 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-08-18 22:46:44,500 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-08-18 22:46:44,500 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-08-18 22:46:44,500 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-08-18 22:46:44,500 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-08-18 22:46:44,500 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-08-18 22:46:44,500 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-08-18 22:46:44,500 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-08-18 22:46:44,500 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-08-18 22:46:44,501 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-08-18 22:46:44,501 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-08-18 22:46:44,501 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-08-18 22:46:44,501 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-08-18 22:46:44,501 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,501 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,501 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,501 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse5 (= ~a28~0 |old(~a28~0)|)) (.cse3 (= ~a11~0 |old(~a11~0)|)) (.cse6 (= ~a25~0 |old(~a25~0)|)) (.cse4 (= ~a19~0 |old(~a19~0)|))) (let ((.cse1 (and .cse5 (= ~a17~0 |old(~a17~0)|) .cse3 .cse6 .cse4)) (.cse0 (not (<= |old(~a17~0)| 8))) (.cse2 (not (= ~a21~0 1)))) (and (or (= |old(~a19~0)| 1) .cse0 .cse1 .cse2) (or (and (= 7 ~a17~0) .cse3 (= 7 ~a28~0) (= ~a25~0 1) .cse4) (not (= |old(~a25~0)| 1)) (not (= 7 |old(~a17~0)|)) .cse2 (not (= 7 |old(~a28~0)|)) (not (= |old(~a11~0)| 1))) (or (= 8 |old(~a28~0)|) .cse0 .cse1 (not (<= |old(~a25~0)| 0)) .cse2) (or .cse0 (not (<= 8 |old(~a17~0)|)) .cse2 (and .cse5 .cse3 .cse6 (<= 8 ~a17~0) (<= ~a17~0 8) .cse4))))) [2020-08-18 22:46:44,501 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,501 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,502 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,502 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-08-18 22:46:44,502 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-08-18 22:46:44,502 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-08-18 22:46:44,502 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-08-18 22:46:44,502 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-08-18 22:46:44,502 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-08-18 22:46:44,502 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-08-18 22:46:44,502 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-08-18 22:46:44,502 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-08-18 22:46:44,502 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-08-18 22:46:44,502 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-08-18 22:46:44,502 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-08-18 22:46:44,502 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-08-18 22:46:44,503 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,503 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,503 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,503 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,503 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,503 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,503 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-08-18 22:46:44,503 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-08-18 22:46:44,503 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-08-18 22:46:44,503 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-08-18 22:46:44,503 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-08-18 22:46:44,503 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-08-18 22:46:44,504 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-08-18 22:46:44,504 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-08-18 22:46:44,504 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-08-18 22:46:44,504 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-08-18 22:46:44,504 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-08-18 22:46:44,504 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-08-18 22:46:44,504 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-08-18 22:46:44,504 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-08-18 22:46:44,504 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-08-18 22:46:44,504 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-08-18 22:46:44,504 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,505 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,505 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,505 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,505 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 22:46:44,505 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-08-18 22:46:44,505 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-08-18 22:46:44,505 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-08-18 22:46:44,505 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-08-18 22:46:44,505 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-08-18 22:46:44,505 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-08-18 22:46:44,505 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-08-18 22:46:44,505 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-08-18 22:46:44,505 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-08-18 22:46:44,506 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-08-18 22:46:44,506 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-08-18 22:46:44,506 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-08-18 22:46:44,506 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-08-18 22:46:44,506 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-08-18 22:46:44,506 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-08-18 22:46:44,506 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-08-18 22:46:44,506 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-08-18 22:46:44,506 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-08-18 22:46:44,506 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-08-18 22:46:44,506 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 22:46:44,507 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (<= 8 ~a17~0) (<= ~a28~0 7) (<= ~a17~0 8) (<= ~a25~0 0)) [2020-08-18 22:46:44,507 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 22:46:44,507 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 22:46:44,507 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (= ~a21~0 1)) (and (= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (<= 8 ~a17~0) (<= ~a17~0 8) (= ~a19~0 |old(~a19~0)|))) [2020-08-18 22:46:44,507 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (<= 8 |old(~a17~0)|)) (and (<= 8 ~a17~0) .cse0) (not (<= |old(~a25~0)| 0)) (not (= ~a21~0 1)) (and (not (= ~a19~0 1)) .cse0) (and (not (= ~a28~0 8)) .cse0 (<= ~a25~0 0)) (and (= 7 ~a17~0) (= 7 ~a28~0) (= ~a25~0 1) (= ~a11~0 1)))) [2020-08-18 22:46:44,508 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-08-18 22:46:44,508 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-08-18 22:46:44,508 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (<= 8 |old(~a17~0)|)) (and (<= 8 ~a17~0) .cse0) (not (<= |old(~a25~0)| 0)) (not (= ~a21~0 1)) (and (not (= ~a19~0 1)) .cse0) (and (not (= ~a28~0 8)) .cse0 (<= ~a25~0 0)) (and (= 7 ~a17~0) (= 7 ~a28~0) (= ~a25~0 1) (= ~a11~0 1)))) [2020-08-18 22:46:44,508 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-08-18 22:46:44,508 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-08-18 22:46:44,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 10:46:44 BoogieIcfgContainer [2020-08-18 22:46:44,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 22:46:44,532 INFO L168 Benchmark]: Toolchain (without parser) took 21966.20 ms. Allocated memory was 140.5 MB in the beginning and 494.4 MB in the end (delta: 353.9 MB). Free memory was 102.1 MB in the beginning and 386.3 MB in the end (delta: -284.2 MB). Peak memory consumption was 366.4 MB. Max. memory is 7.1 GB. [2020-08-18 22:46:44,533 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 22:46:44,534 INFO L168 Benchmark]: CACSL2BoogieTranslator took 780.07 ms. Allocated memory was 140.5 MB in the beginning and 206.0 MB in the end (delta: 65.5 MB). Free memory was 101.9 MB in the beginning and 172.1 MB in the end (delta: -70.2 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. [2020-08-18 22:46:44,535 INFO L168 Benchmark]: Boogie Preprocessor took 128.34 ms. Allocated memory is still 206.0 MB. Free memory was 172.1 MB in the beginning and 167.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-08-18 22:46:44,536 INFO L168 Benchmark]: RCFGBuilder took 1195.80 ms. Allocated memory was 206.0 MB in the beginning and 239.1 MB in the end (delta: 33.0 MB). Free memory was 167.1 MB in the beginning and 180.6 MB in the end (delta: -13.4 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. [2020-08-18 22:46:44,537 INFO L168 Benchmark]: TraceAbstraction took 19857.16 ms. Allocated memory was 239.1 MB in the beginning and 494.4 MB in the end (delta: 255.3 MB). Free memory was 179.1 MB in the beginning and 386.3 MB in the end (delta: -207.2 MB). Peak memory consumption was 344.9 MB. Max. memory is 7.1 GB. [2020-08-18 22:46:44,541 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 780.07 ms. Allocated memory was 140.5 MB in the beginning and 206.0 MB in the end (delta: 65.5 MB). Free memory was 101.9 MB in the beginning and 172.1 MB in the end (delta: -70.2 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.34 ms. Allocated memory is still 206.0 MB. Free memory was 172.1 MB in the beginning and 167.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1195.80 ms. Allocated memory was 206.0 MB in the beginning and 239.1 MB in the end (delta: 33.0 MB). Free memory was 167.1 MB in the beginning and 180.6 MB in the end (delta: -13.4 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19857.16 ms. Allocated memory was 239.1 MB in the beginning and 494.4 MB in the end (delta: 255.3 MB). Free memory was 179.1 MB in the beginning and 386.3 MB in the end (delta: -207.2 MB). Peak memory consumption was 344.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 448]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((((!(\old(a28) <= 7) || !(\old(a17) <= 8)) || !(8 <= \old(a17))) || (8 <= a17 && a17 <= 8)) || !(\old(a25) <= 0)) || !(a21 == 1)) || (!(a19 == 1) && a17 <= 8)) || ((!(a28 == 8) && a17 <= 8) && a25 <= 0)) || (((7 == a17 && 7 == a28) && a25 == 1) && a11 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.0s, OverallIterations: 8, TraceHistogramMax: 4, AutomataDifference: 14.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 318 SDtfs, 5064 SDslu, 482 SDs, 0 SdLazy, 7928 SolverSat, 1510 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1999occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 589 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 100 PreInvPairs, 196 NumberOfFragments, 359 HoareAnnotationTreeSize, 100 FomulaSimplifications, 404553 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8817 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1034 NumberOfCodeBlocks, 1034 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1026 ConstructedInterpolants, 0 QuantifiedInterpolants, 477856 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 273/298 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...