/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label10.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 11:37:13,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 11:37:13,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 11:37:13,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 11:37:13,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 11:37:13,948 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 11:37:13,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 11:37:13,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 11:37:13,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 11:37:13,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 11:37:13,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 11:37:13,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 11:37:13,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 11:37:13,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 11:37:13,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 11:37:13,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 11:37:13,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 11:37:13,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 11:37:13,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 11:37:13,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 11:37:13,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 11:37:13,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 11:37:13,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 11:37:13,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 11:37:13,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 11:37:13,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 11:37:13,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 11:37:13,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 11:37:13,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 11:37:13,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 11:37:13,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 11:37:13,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 11:37:13,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 11:37:13,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 11:37:13,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 11:37:13,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 11:37:13,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 11:37:13,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 11:37:13,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 11:37:13,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 11:37:13,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 11:37:13,987 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 11:37:14,002 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 11:37:14,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 11:37:14,004 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 11:37:14,004 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 11:37:14,004 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 11:37:14,004 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 11:37:14,004 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 11:37:14,005 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 11:37:14,005 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 11:37:14,005 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 11:37:14,005 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 11:37:14,005 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 11:37:14,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 11:37:14,006 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 11:37:14,006 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 11:37:14,006 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 11:37:14,006 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 11:37:14,007 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 11:37:14,007 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 11:37:14,007 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 11:37:14,007 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 11:37:14,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:37:14,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 11:37:14,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 11:37:14,008 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 11:37:14,008 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 11:37:14,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:14,009 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 11:37:14,009 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 11:37:14,009 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 -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-20 11:37:14,337 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 11:37:14,350 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 11:37:14,354 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 11:37:14,355 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 11:37:14,356 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 11:37:14,357 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label10.c [2020-07-20 11:37:14,431 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f58506d11/8c949a7f08bf4af49aa0bd57ec5f4387/FLAG73744f896 [2020-07-20 11:37:15,065 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 11:37:15,069 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label10.c [2020-07-20 11:37:15,092 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f58506d11/8c949a7f08bf4af49aa0bd57ec5f4387/FLAG73744f896 [2020-07-20 11:37:15,287 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f58506d11/8c949a7f08bf4af49aa0bd57ec5f4387 [2020-07-20 11:37:15,296 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 11:37:15,298 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 11:37:15,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 11:37:15,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 11:37:15,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 11:37:15,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:37:15" (1/1) ... [2020-07-20 11:37:15,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64002e33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:37:15, skipping insertion in model container [2020-07-20 11:37:15,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:37:15" (1/1) ... [2020-07-20 11:37:15,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 11:37:15,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 11:37:15,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:37:15,776 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 11:37:16,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:37:16,085 INFO L208 MainTranslator]: Completed translation [2020-07-20 11:37:16,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:37:16 WrapperNode [2020-07-20 11:37:16,086 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 11:37:16,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 11:37:16,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 11:37:16,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 11:37:16,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:37:16" (1/1) ... [2020-07-20 11:37:16,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:37:16" (1/1) ... [2020-07-20 11:37:16,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:37:16" (1/1) ... [2020-07-20 11:37:16,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:37:16" (1/1) ... [2020-07-20 11:37:16,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:37:16" (1/1) ... [2020-07-20 11:37:16,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:37:16" (1/1) ... [2020-07-20 11:37:16,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:37:16" (1/1) ... [2020-07-20 11:37:16,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 11:37:16,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 11:37:16,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 11:37:16,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 11:37:16,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:37:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-20 11:37:16,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 11:37:16,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 11:37:16,351 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 11:37:16,351 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 11:37:16,352 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 11:37:16,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 11:37:16,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 11:37:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 11:37:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 11:37:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 11:37:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 11:37:17,946 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 11:37:17,947 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 11:37:17,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:37:17 BoogieIcfgContainer [2020-07-20 11:37:17,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 11:37:17,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 11:37:17,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 11:37:17,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 11:37:17,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:37:15" (1/3) ... [2020-07-20 11:37:17,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da5ae57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:37:17, skipping insertion in model container [2020-07-20 11:37:17,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:37:16" (2/3) ... [2020-07-20 11:37:17,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da5ae57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:37:17, skipping insertion in model container [2020-07-20 11:37:17,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:37:17" (3/3) ... [2020-07-20 11:37:17,965 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label10.c [2020-07-20 11:37:17,980 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 11:37:17,990 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 11:37:18,008 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 11:37:18,040 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 11:37:18,041 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 11:37:18,041 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 11:37:18,041 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 11:37:18,041 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 11:37:18,042 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 11:37:18,042 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 11:37:18,042 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 11:37:18,072 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-20 11:37:18,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-07-20 11:37:18,083 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:37:18,085 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] [2020-07-20 11:37:18,085 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:37:18,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:37:18,094 INFO L82 PathProgramCache]: Analyzing trace with hash 951236199, now seen corresponding path program 1 times [2020-07-20 11:37:18,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:37:18,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1120873134] [2020-07-20 11:37:18,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:37:18,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:37:18,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:37:18,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:37:18,285 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:37:18,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1120873134] [2020-07-20 11:37:18,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:37:18,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:37:18,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211227943] [2020-07-20 11:37:18,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:37:18,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:37:18,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:37:18,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:37:18,312 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-20 11:37:19,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:37:19,365 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions. [2020-07-20 11:37:19,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:37:19,367 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2020-07-20 11:37:19,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:37:19,382 INFO L225 Difference]: With dead ends: 586 [2020-07-20 11:37:19,382 INFO L226 Difference]: Without dead ends: 294 [2020-07-20 11:37:19,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:37:19,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-20 11:37:19,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-20 11:37:19,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-20 11:37:19,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 426 transitions. [2020-07-20 11:37:19,458 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 426 transitions. Word has length 54 [2020-07-20 11:37:19,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:37:19,458 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 426 transitions. [2020-07-20 11:37:19,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:37:19,459 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 426 transitions. [2020-07-20 11:37:19,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-20 11:37:19,465 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:37:19,465 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 11:37:19,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:19,679 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:37:19,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:37:19,680 INFO L82 PathProgramCache]: Analyzing trace with hash 2035742562, now seen corresponding path program 1 times [2020-07-20 11:37:19,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:37:19,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [90220795] [2020-07-20 11:37:19,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:37:19,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:37:19,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:37:19,861 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:37:19,861 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:37:19,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [90220795] [2020-07-20 11:37:19,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:37:19,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 11:37:19,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221479384] [2020-07-20 11:37:19,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:37:19,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:37:19,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:37:19,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:37:19,866 INFO L87 Difference]: Start difference. First operand 294 states and 426 transitions. Second operand 5 states. [2020-07-20 11:37:20,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:37:20,883 INFO L93 Difference]: Finished difference Result 890 states and 1316 transitions. [2020-07-20 11:37:20,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 11:37:20,884 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 128 [2020-07-20 11:37:20,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:37:20,889 INFO L225 Difference]: With dead ends: 890 [2020-07-20 11:37:20,889 INFO L226 Difference]: Without dead ends: 602 [2020-07-20 11:37:20,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 11:37:20,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2020-07-20 11:37:20,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 590. [2020-07-20 11:37:20,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2020-07-20 11:37:20,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 775 transitions. [2020-07-20 11:37:20,927 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 775 transitions. Word has length 128 [2020-07-20 11:37:20,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:37:20,927 INFO L479 AbstractCegarLoop]: Abstraction has 590 states and 775 transitions. [2020-07-20 11:37:20,927 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:37:20,928 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 775 transitions. [2020-07-20 11:37:20,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-20 11:37:20,933 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:37:20,933 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 11:37:21,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:21,146 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:37:21,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:37:21,147 INFO L82 PathProgramCache]: Analyzing trace with hash 748722597, now seen corresponding path program 1 times [2020-07-20 11:37:21,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:37:21,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1368186459] [2020-07-20 11:37:21,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:21,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:37:21,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:37:21,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:37:21,265 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:37:21,266 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:37:21,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1368186459] [2020-07-20 11:37:21,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:37:21,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:37:21,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769271253] [2020-07-20 11:37:21,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:37:21,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:37:21,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:37:21,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:37:21,269 INFO L87 Difference]: Start difference. First operand 590 states and 775 transitions. Second operand 3 states. [2020-07-20 11:37:22,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:37:22,005 INFO L93 Difference]: Finished difference Result 1462 states and 1992 transitions. [2020-07-20 11:37:22,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:37:22,006 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-07-20 11:37:22,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:37:22,013 INFO L225 Difference]: With dead ends: 1462 [2020-07-20 11:37:22,014 INFO L226 Difference]: Without dead ends: 878 [2020-07-20 11:37:22,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:37:22,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2020-07-20 11:37:22,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 878. [2020-07-20 11:37:22,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2020-07-20 11:37:22,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1157 transitions. [2020-07-20 11:37:22,068 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1157 transitions. Word has length 133 [2020-07-20 11:37:22,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:37:22,069 INFO L479 AbstractCegarLoop]: Abstraction has 878 states and 1157 transitions. [2020-07-20 11:37:22,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:37:22,069 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1157 transitions. [2020-07-20 11:37:22,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-20 11:37:22,074 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:37:22,075 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 11:37:22,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:22,289 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:37:22,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:37:22,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1340631419, now seen corresponding path program 1 times [2020-07-20 11:37:22,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:37:22,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [400154146] [2020-07-20 11:37:22,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:37:22,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:37:22,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:37:22,426 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:37:22,427 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:37:22,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [400154146] [2020-07-20 11:37:22,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:37:22,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 11:37:22,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656688698] [2020-07-20 11:37:22,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:37:22,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:37:22,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:37:22,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:37:22,431 INFO L87 Difference]: Start difference. First operand 878 states and 1157 transitions. Second operand 5 states. [2020-07-20 11:37:23,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:37:23,399 INFO L93 Difference]: Finished difference Result 2370 states and 3201 transitions. [2020-07-20 11:37:23,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:37:23,401 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-07-20 11:37:23,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:37:23,413 INFO L225 Difference]: With dead ends: 2370 [2020-07-20 11:37:23,413 INFO L226 Difference]: Without dead ends: 1498 [2020-07-20 11:37:23,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 11:37:23,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2020-07-20 11:37:23,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1470. [2020-07-20 11:37:23,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1470 states. [2020-07-20 11:37:23,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 1802 transitions. [2020-07-20 11:37:23,478 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 1802 transitions. Word has length 149 [2020-07-20 11:37:23,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:37:23,479 INFO L479 AbstractCegarLoop]: Abstraction has 1470 states and 1802 transitions. [2020-07-20 11:37:23,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:37:23,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 1802 transitions. [2020-07-20 11:37:23,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-07-20 11:37:23,484 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:37:23,484 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 11:37:23,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:23,699 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:37:23,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:37:23,700 INFO L82 PathProgramCache]: Analyzing trace with hash -2097424682, now seen corresponding path program 1 times [2020-07-20 11:37:23,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:37:23,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [562830782] [2020-07-20 11:37:23,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:37:23,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:37:23,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:37:23,807 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:37:23,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:37:23,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [562830782] [2020-07-20 11:37:23,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:37:23,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:37:23,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130316987] [2020-07-20 11:37:23,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:37:23,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:37:23,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:37:23,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:37:23,811 INFO L87 Difference]: Start difference. First operand 1470 states and 1802 transitions. Second operand 3 states. [2020-07-20 11:37:24,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:37:24,635 INFO L93 Difference]: Finished difference Result 3226 states and 4023 transitions. [2020-07-20 11:37:24,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:37:24,638 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 150 [2020-07-20 11:37:24,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:37:24,662 INFO L225 Difference]: With dead ends: 3226 [2020-07-20 11:37:24,662 INFO L226 Difference]: Without dead ends: 1762 [2020-07-20 11:37:24,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:37:24,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2020-07-20 11:37:24,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1762. [2020-07-20 11:37:24,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1762 states. [2020-07-20 11:37:24,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1762 states to 1762 states and 2139 transitions. [2020-07-20 11:37:24,762 INFO L78 Accepts]: Start accepts. Automaton has 1762 states and 2139 transitions. Word has length 150 [2020-07-20 11:37:24,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:37:24,763 INFO L479 AbstractCegarLoop]: Abstraction has 1762 states and 2139 transitions. [2020-07-20 11:37:24,764 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:37:24,764 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states and 2139 transitions. [2020-07-20 11:37:24,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-07-20 11:37:24,774 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:37:24,774 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:37:24,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:24,990 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:37:24,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:37:24,990 INFO L82 PathProgramCache]: Analyzing trace with hash -552508610, now seen corresponding path program 1 times [2020-07-20 11:37:24,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:37:24,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1995202438] [2020-07-20 11:37:24,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:37:25,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:37:25,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:37:25,135 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-20 11:37:25,136 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:37:25,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1995202438] [2020-07-20 11:37:25,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:37:25,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:37:25,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209072090] [2020-07-20 11:37:25,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:37:25,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:37:25,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:37:25,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:37:25,139 INFO L87 Difference]: Start difference. First operand 1762 states and 2139 transitions. Second operand 3 states. [2020-07-20 11:37:25,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:37:25,810 INFO L93 Difference]: Finished difference Result 2775 states and 3419 transitions. [2020-07-20 11:37:25,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:37:25,811 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2020-07-20 11:37:25,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:37:25,831 INFO L225 Difference]: With dead ends: 2775 [2020-07-20 11:37:25,831 INFO L226 Difference]: Without dead ends: 2773 [2020-07-20 11:37:25,843 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:37:25,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2773 states. [2020-07-20 11:37:25,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2773 to 2344. [2020-07-20 11:37:25,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2344 states. [2020-07-20 11:37:25,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2344 states to 2344 states and 2927 transitions. [2020-07-20 11:37:25,945 INFO L78 Accepts]: Start accepts. Automaton has 2344 states and 2927 transitions. Word has length 221 [2020-07-20 11:37:25,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:37:25,946 INFO L479 AbstractCegarLoop]: Abstraction has 2344 states and 2927 transitions. [2020-07-20 11:37:25,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:37:25,947 INFO L276 IsEmpty]: Start isEmpty. Operand 2344 states and 2927 transitions. [2020-07-20 11:37:25,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-07-20 11:37:25,952 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:37:25,954 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:37:26,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:26,168 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:37:26,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:37:26,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1577028555, now seen corresponding path program 1 times [2020-07-20 11:37:26,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:37:26,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [304679952] [2020-07-20 11:37:26,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:37:26,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:37:26,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:37:26,350 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 162 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:37:26,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:37:26,541 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 162 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:37:26,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [304679952] [2020-07-20 11:37:26,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:37:26,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 11:37:26,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015814252] [2020-07-20 11:37:26,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 11:37:26,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:37:26,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 11:37:26,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:37:26,544 INFO L87 Difference]: Start difference. First operand 2344 states and 2927 transitions. Second operand 6 states. [2020-07-20 11:37:27,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:37:27,559 INFO L93 Difference]: Finished difference Result 5141 states and 6559 transitions. [2020-07-20 11:37:27,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 11:37:27,560 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 222 [2020-07-20 11:37:27,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:37:27,578 INFO L225 Difference]: With dead ends: 5141 [2020-07-20 11:37:27,579 INFO L226 Difference]: Without dead ends: 2803 [2020-07-20 11:37:27,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 438 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:37:27,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2020-07-20 11:37:27,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 2650. [2020-07-20 11:37:27,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2650 states. [2020-07-20 11:37:27,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2650 states to 2650 states and 3339 transitions. [2020-07-20 11:37:27,670 INFO L78 Accepts]: Start accepts. Automaton has 2650 states and 3339 transitions. Word has length 222 [2020-07-20 11:37:27,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:37:27,670 INFO L479 AbstractCegarLoop]: Abstraction has 2650 states and 3339 transitions. [2020-07-20 11:37:27,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 11:37:27,671 INFO L276 IsEmpty]: Start isEmpty. Operand 2650 states and 3339 transitions. [2020-07-20 11:37:27,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-07-20 11:37:27,676 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:37:27,677 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 11:37:27,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:27,893 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:37:27,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:37:27,893 INFO L82 PathProgramCache]: Analyzing trace with hash -648099628, now seen corresponding path program 1 times [2020-07-20 11:37:27,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:37:27,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1567627523] [2020-07-20 11:37:27,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:27,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:37:27,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:37:27,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:37:28,088 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-20 11:37:28,088 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:37:28,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1567627523] [2020-07-20 11:37:28,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:37:28,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:37:28,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306460828] [2020-07-20 11:37:28,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:37:28,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:37:28,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:37:28,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:37:28,091 INFO L87 Difference]: Start difference. First operand 2650 states and 3339 transitions. Second operand 3 states. [2020-07-20 11:37:28,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:37:28,770 INFO L93 Difference]: Finished difference Result 2938 states and 3660 transitions. [2020-07-20 11:37:28,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:37:28,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 229 [2020-07-20 11:37:28,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:37:28,788 INFO L225 Difference]: With dead ends: 2938 [2020-07-20 11:37:28,788 INFO L226 Difference]: Without dead ends: 2936 [2020-07-20 11:37:28,790 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:37:28,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2936 states. [2020-07-20 11:37:28,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2936 to 2650. [2020-07-20 11:37:28,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2650 states. [2020-07-20 11:37:28,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2650 states to 2650 states and 3338 transitions. [2020-07-20 11:37:28,868 INFO L78 Accepts]: Start accepts. Automaton has 2650 states and 3338 transitions. Word has length 229 [2020-07-20 11:37:28,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:37:28,869 INFO L479 AbstractCegarLoop]: Abstraction has 2650 states and 3338 transitions. [2020-07-20 11:37:28,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:37:28,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2650 states and 3338 transitions. [2020-07-20 11:37:28,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-07-20 11:37:28,876 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:37:28,877 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 11:37:29,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:29,092 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:37:29,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:37:29,092 INFO L82 PathProgramCache]: Analyzing trace with hash 53533683, now seen corresponding path program 1 times [2020-07-20 11:37:29,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:37:29,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1505326609] [2020-07-20 11:37:29,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:37:29,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:37:29,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:37:29,271 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-20 11:37:29,271 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:37:29,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1505326609] [2020-07-20 11:37:29,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:37:29,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:37:29,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533414471] [2020-07-20 11:37:29,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:37:29,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:37:29,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:37:29,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:37:29,274 INFO L87 Difference]: Start difference. First operand 2650 states and 3338 transitions. Second operand 3 states. [2020-07-20 11:37:29,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:37:29,935 INFO L93 Difference]: Finished difference Result 5292 states and 6672 transitions. [2020-07-20 11:37:29,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:37:29,936 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 250 [2020-07-20 11:37:29,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:37:29,938 INFO L225 Difference]: With dead ends: 5292 [2020-07-20 11:37:29,938 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 11:37:29,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:37:29,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 11:37:29,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 11:37:29,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 11:37:29,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 11:37:29,953 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 250 [2020-07-20 11:37:29,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:37:29,955 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 11:37:29,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:37:29,955 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 11:37:29,956 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 11:37:30,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:30,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 11:37:31,071 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 59 [2020-07-20 11:37:31,211 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2020-07-20 11:37:31,347 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2020-07-20 11:37:31,351 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:37:31,352 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= ~a19~0 |old(~a19~0)|)) [2020-07-20 11:37:31,352 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:37:31,352 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-20 11:37:31,353 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,353 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,353 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,353 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,354 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,354 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,354 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-20 11:37:31,354 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-20 11:37:31,354 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 11:37:31,354 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-20 11:37:31,354 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 11:37:31,354 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-20 11:37:31,355 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-20 11:37:31,355 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-20 11:37:31,355 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-20 11:37:31,355 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-20 11:37:31,355 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-20 11:37:31,355 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,355 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,355 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,355 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,355 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,356 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-20 11:37:31,356 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-20 11:37:31,356 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-20 11:37:31,356 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-20 11:37:31,356 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-20 11:37:31,356 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-20 11:37:31,356 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-20 11:37:31,356 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-20 11:37:31,356 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-20 11:37:31,356 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-20 11:37:31,357 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-20 11:37:31,357 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-20 11:37:31,357 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-20 11:37:31,357 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 148) no Hoare annotation was computed. [2020-07-20 11:37:31,357 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-20 11:37:31,357 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,357 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,357 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,358 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,358 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,358 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-20 11:37:31,358 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-20 11:37:31,358 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-20 11:37:31,358 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-20 11:37:31,358 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-20 11:37:31,359 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-20 11:37:31,359 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-20 11:37:31,359 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-20 11:37:31,359 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-20 11:37:31,359 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-20 11:37:31,359 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,359 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,359 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,360 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,360 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,360 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-20 11:37:31,360 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-20 11:37:31,360 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-20 11:37:31,360 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-20 11:37:31,361 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-20 11:37:31,361 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-20 11:37:31,361 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-20 11:37:31,361 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 11:37:31,361 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-20 11:37:31,361 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-20 11:37:31,361 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-20 11:37:31,362 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-20 11:37:31,362 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-20 11:37:31,362 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,362 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,362 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,362 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,362 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,363 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-20 11:37:31,363 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-20 11:37:31,363 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-20 11:37:31,363 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 11:37:31,363 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-20 11:37:31,363 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-20 11:37:31,364 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-20 11:37:31,364 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-20 11:37:31,364 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-20 11:37:31,364 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,364 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,364 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,364 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,365 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,365 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,365 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,365 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-20 11:37:31,365 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-20 11:37:31,365 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-20 11:37:31,366 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-20 11:37:31,366 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-20 11:37:31,366 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-20 11:37:31,366 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-20 11:37:31,366 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 11:37:31,366 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-20 11:37:31,366 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-20 11:37:31,366 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-20 11:37:31,366 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-20 11:37:31,367 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-20 11:37:31,367 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,367 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,367 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,367 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,367 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-20 11:37:31,367 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,367 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,367 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-20 11:37:31,367 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-20 11:37:31,368 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-20 11:37:31,368 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-20 11:37:31,368 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-20 11:37:31,368 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-20 11:37:31,368 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 11:37:31,368 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 11:37:31,368 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-20 11:37:31,369 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-20 11:37:31,369 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-20 11:37:31,369 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-20 11:37:31,369 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-20 11:37:31,369 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,369 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,369 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,369 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,369 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,369 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,369 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-20 11:37:31,370 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-20 11:37:31,370 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-20 11:37:31,370 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-20 11:37:31,370 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-20 11:37:31,370 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 11:37:31,370 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 11:37:31,370 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-20 11:37:31,370 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-20 11:37:31,370 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-20 11:37:31,371 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-20 11:37:31,371 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse3 (not (<= 4 |old(~a10~0)|))) (.cse6 (<= 4 ~a10~0)) (.cse5 (<= 7 ~a19~0)) (.cse0 (<= 9 ~a19~0)) (.cse9 (not (<= |old(~a10~0)| 1))) (.cse1 (not (<= 9 |old(~a19~0)|))) (.cse7 (not (<= |old(~a1~0)| 23))) (.cse8 (<= ~a1~0 23)) (.cse4 (not (<= 7 |old(~a19~0)|))) (.cse12 (not (<= |old(~a10~0)| 2))) (.cse2 (not (<= |old(~a19~0)| 9))) (.cse10 (<= ~a10~0 |old(~a10~0)|)) (.cse11 (<= ~a19~0 |old(~a19~0)|))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse2 (and .cse5 .cse6)) (or .cse7 .cse8 .cse4 .cse9) (or .cse3 .cse7 (and .cse8 .cse6) .cse2) (or (and .cse10 .cse8 .cse11) .cse7 (not (<= |old(~a10~0)| 0))) (or (and .cse10 .cse5 .cse11) .cse4 .cse2 .cse12) (or .cse1 (and .cse0 .cse10 .cse11) .cse9) (or .cse7 .cse8 .cse1 .cse2) (or .cse7 .cse8 .cse4 .cse2 .cse12) (or (not (<= 3 |old(~a10~0)|)) .cse2 (and .cse10 (<= 3 ~a10~0) .cse11)))) [2020-07-20 11:37:31,372 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-20 11:37:31,372 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-20 11:37:31,372 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-20 11:37:31,372 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,372 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,372 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,372 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,373 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,373 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,373 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-20 11:37:31,373 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 11:37:31,373 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-20 11:37:31,373 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 11:37:31,373 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-20 11:37:31,374 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-20 11:37:31,374 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-20 11:37:31,374 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-20 11:37:31,374 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-20 11:37:31,374 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-20 11:37:31,374 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-20 11:37:31,374 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-20 11:37:31,374 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-20 11:37:31,374 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,374 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,374 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,375 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,375 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,375 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,375 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-20 11:37:31,375 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-20 11:37:31,375 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-20 11:37:31,375 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-20 11:37:31,375 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-20 11:37:31,375 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 11:37:31,375 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-20 11:37:31,376 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-20 11:37:31,376 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 11:37:31,376 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-20 11:37:31,376 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-20 11:37:31,376 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-20 11:37:31,376 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,376 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,376 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,376 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,376 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,376 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:31,377 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-20 11:37:31,377 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-20 11:37:31,377 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-20 11:37:31,377 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 11:37:31,397 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-20 11:37:31,397 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 11:37:31,397 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-20 11:37:31,397 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-20 11:37:31,397 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-20 11:37:31,398 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-20 11:37:31,398 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-20 11:37:31,398 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-20 11:37:31,398 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:37:31,398 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= ~a19~0 9) (<= 9 ~a19~0) (<= ~a1~0 23)) [2020-07-20 11:37:31,398 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 11:37:31,398 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:37:31,398 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= |old(~a1~0)| 23)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) (<= ~a10~0 |old(~a10~0)|) (<= ~a1~0 23) (<= ~a19~0 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9))) [2020-07-20 11:37:31,398 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-20 11:37:31,399 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse1 (<= ~a19~0 9)) (.cse0 (<= 7 ~a19~0))) (or (and (<= ~a10~0 1) .cse0) (not (<= |old(~a1~0)| 23)) (and (<= ~a10~0 0) (<= ~a1~0 23)) (and .cse1 (<= 3 ~a10~0)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and .cse1 .cse0) (not (<= |old(~a19~0)| 9)))) [2020-07-20 11:37:31,399 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-20 11:37:31,399 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-20 11:37:31,399 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse1 (<= ~a19~0 9)) (.cse0 (<= 7 ~a19~0))) (or (and (<= ~a10~0 1) .cse0) (not (<= |old(~a1~0)| 23)) (and (<= ~a10~0 0) (<= ~a1~0 23)) (and .cse1 (<= 3 ~a10~0)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and .cse1 .cse0) (not (<= |old(~a19~0)| 9)))) [2020-07-20 11:37:31,399 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-20 11:37:31,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:37:31 BoogieIcfgContainer [2020-07-20 11:37:31,417 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 11:37:31,419 INFO L168 Benchmark]: Toolchain (without parser) took 16122.22 ms. Allocated memory was 137.9 MB in the beginning and 412.6 MB in the end (delta: 274.7 MB). Free memory was 101.3 MB in the beginning and 371.0 MB in the end (delta: -269.7 MB). Peak memory consumption was 294.5 MB. Max. memory is 7.1 GB. [2020-07-20 11:37:31,420 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 11:37:31,421 INFO L168 Benchmark]: CACSL2BoogieTranslator took 787.49 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 101.1 MB in the beginning and 169.1 MB in the end (delta: -68.0 MB). Peak memory consumption was 36.9 MB. Max. memory is 7.1 GB. [2020-07-20 11:37:31,421 INFO L168 Benchmark]: Boogie Preprocessor took 156.97 ms. Allocated memory is still 202.4 MB. Free memory was 169.1 MB in the beginning and 164.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-20 11:37:31,422 INFO L168 Benchmark]: RCFGBuilder took 1710.67 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 164.2 MB in the beginning and 179.8 MB in the end (delta: -15.6 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB. [2020-07-20 11:37:31,423 INFO L168 Benchmark]: TraceAbstraction took 13460.97 ms. Allocated memory was 234.4 MB in the beginning and 412.6 MB in the end (delta: 178.3 MB). Free memory was 178.4 MB in the beginning and 371.0 MB in the end (delta: -192.7 MB). Peak memory consumption was 275.1 MB. Max. memory is 7.1 GB. [2020-07-20 11:37:31,431 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 787.49 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 101.1 MB in the beginning and 169.1 MB in the end (delta: -68.0 MB). Peak memory consumption was 36.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 156.97 ms. Allocated memory is still 202.4 MB. Free memory was 169.1 MB in the beginning and 164.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1710.67 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 164.2 MB in the beginning and 179.8 MB in the end (delta: -15.6 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13460.97 ms. Allocated memory was 234.4 MB in the beginning and 412.6 MB in the end (delta: 178.3 MB). Free memory was 178.4 MB in the beginning and 371.0 MB in the end (delta: -192.7 MB). Peak memory consumption was 275.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 148]: 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: 582]: Loop Invariant Derived loop invariant: (((((((a10 <= 1 && 7 <= a19) || !(\old(a1) <= 23)) || (a10 <= 0 && a1 <= 23)) || (a19 <= 9 && 3 <= a10)) || !(\old(a10) <= 0)) || !(9 <= \old(a19))) || (a19 <= 9 && 7 <= a19)) || !(\old(a19) <= 9) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.1s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 661 SDtfs, 1683 SDslu, 173 SDs, 0 SdLazy, 4060 SolverSat, 809 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1759 GetRequests, 1732 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2650occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 908 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 81 PreInvPairs, 117 NumberOfFragments, 326 HoareAnnotationTreeSize, 81 FomulaSimplifications, 2089 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1049 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1536 NumberOfCodeBlocks, 1536 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1748 ConstructedInterpolants, 0 QuantifiedInterpolants, 662034 SizeOfPredicates, 15 NumberOfNonLiveVariables, 2871 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 1018/1022 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...