/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 SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label46.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 22:01:45,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 22:01:45,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 22:01:45,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 22:01:45,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 22:01:45,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 22:01:45,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 22:01:45,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 22:01:45,505 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 22:01:45,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 22:01:45,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 22:01:45,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 22:01:45,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 22:01:45,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 22:01:45,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 22:01:45,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 22:01:45,512 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 22:01:45,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 22:01:45,515 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 22:01:45,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 22:01:45,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 22:01:45,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 22:01:45,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 22:01:45,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 22:01:45,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 22:01:45,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 22:01:45,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 22:01:45,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 22:01:45,526 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 22:01:45,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 22:01:45,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 22:01:45,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 22:01:45,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 22:01:45,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 22:01:45,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 22:01:45,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 22:01:45,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 22:01:45,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 22:01:45,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 22:01:45,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 22:01:45,534 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 22:01:45,535 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 22:01:45,556 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 22:01:45,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 22:01:45,558 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 22:01:45,558 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 22:01:45,558 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 22:01:45,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 22:01:45,558 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 22:01:45,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 22:01:45,559 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 22:01:45,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 22:01:45,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 22:01:45,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 22:01:45,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 22:01:45,561 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 22:01:45,561 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 22:01:45,561 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 22:01:45,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 22:01:45,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 22:01:45,562 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 22:01:45,562 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 22:01:45,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 22:01:45,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 22:01:45,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 22:01:45,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 22:01:45,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 22:01:45,564 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 22:01:45,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:01:45,564 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 22:01:45,564 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 22:01:45,564 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 -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 22:01:45,876 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 22:01:45,890 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 22:01:45,893 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 22:01:45,895 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 22:01:45,895 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 22:01:45,896 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label46.c [2020-07-20 22:01:45,963 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89422bbea/766794d5a3f145759f2a9e3319a4c0ab/FLAGcd2a27894 [2020-07-20 22:01:46,585 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 22:01:46,586 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label46.c [2020-07-20 22:01:46,600 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89422bbea/766794d5a3f145759f2a9e3319a4c0ab/FLAGcd2a27894 [2020-07-20 22:01:46,795 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89422bbea/766794d5a3f145759f2a9e3319a4c0ab [2020-07-20 22:01:46,803 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 22:01:46,807 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 22:01:46,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 22:01:46,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 22:01:46,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 22:01:46,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:01:46" (1/1) ... [2020-07-20 22:01:46,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c24edc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:01:46, skipping insertion in model container [2020-07-20 22:01:46,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:01:46" (1/1) ... [2020-07-20 22:01:46,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 22:01:46,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 22:01:47,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:01:47,306 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 22:01:47,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:01:47,586 INFO L208 MainTranslator]: Completed translation [2020-07-20 22:01:47,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:01:47 WrapperNode [2020-07-20 22:01:47,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 22:01:47,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 22:01:47,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 22:01:47,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 22:01:47,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:01:47" (1/1) ... [2020-07-20 22:01:47,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:01:47" (1/1) ... [2020-07-20 22:01:47,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:01:47" (1/1) ... [2020-07-20 22:01:47,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:01:47" (1/1) ... [2020-07-20 22:01:47,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:01:47" (1/1) ... [2020-07-20 22:01:47,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:01:47" (1/1) ... [2020-07-20 22:01:47,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:01:47" (1/1) ... [2020-07-20 22:01:47,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 22:01:47,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 22:01:47,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 22:01:47,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 22:01:47,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:01:47" (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 22:01:47,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 22:01:47,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 22:01:47,769 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 22:01:47,769 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 22:01:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 22:01:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 22:01:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 22:01:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 22:01:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 22:01:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 22:01:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 22:01:48,984 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 22:01:48,985 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 22:01:48,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:01:48 BoogieIcfgContainer [2020-07-20 22:01:48,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 22:01:48,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 22:01:48,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 22:01:48,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 22:01:48,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:01:46" (1/3) ... [2020-07-20 22:01:48,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9bb667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:01:48, skipping insertion in model container [2020-07-20 22:01:48,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:01:47" (2/3) ... [2020-07-20 22:01:48,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9bb667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:01:48, skipping insertion in model container [2020-07-20 22:01:48,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:01:48" (3/3) ... [2020-07-20 22:01:49,000 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label46.c [2020-07-20 22:01:49,011 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 22:01:49,020 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 22:01:49,037 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 22:01:49,066 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 22:01:49,066 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 22:01:49,066 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 22:01:49,066 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 22:01:49,067 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 22:01:49,067 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 22:01:49,067 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 22:01:49,067 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 22:01:49,093 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-20 22:01:49,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-07-20 22:01:49,107 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:01:49,108 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:01:49,109 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:01:49,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:01:49,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1447421978, now seen corresponding path program 1 times [2020-07-20 22:01:49,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:01:49,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883823255] [2020-07-20 22:01:49,126 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 22:01:49,354 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:01:49,355 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:01:49,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 22:01:49,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:01:49,484 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 22:01:49,484 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:01:49,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883823255] [2020-07-20 22:01:49,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:01:49,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:01:49,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445804522] [2020-07-20 22:01:49,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:01:49,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:01:49,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:01:49,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:01:49,515 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-20 22:01:50,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:01:50,409 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2020-07-20 22:01:50,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:01:50,411 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2020-07-20 22:01:50,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:01:50,428 INFO L225 Difference]: With dead ends: 547 [2020-07-20 22:01:50,428 INFO L226 Difference]: Without dead ends: 278 [2020-07-20 22:01:50,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 116 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 22:01:50,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-20 22:01:50,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-20 22:01:50,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-20 22:01:50,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 406 transitions. [2020-07-20 22:01:50,527 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 406 transitions. Word has length 118 [2020-07-20 22:01:50,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:01:50,529 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 406 transitions. [2020-07-20 22:01:50,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:01:50,529 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 406 transitions. [2020-07-20 22:01:50,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-07-20 22:01:50,540 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:01:50,541 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:01:50,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:01:50,755 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:01:50,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:01:50,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1793818301, now seen corresponding path program 1 times [2020-07-20 22:01:50,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:01:50,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [721916540] [2020-07-20 22:01:50,757 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 22:01:50,886 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:01:50,886 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:01:50,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:01:50,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:01:50,963 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:01:50,964 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:01:50,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [721916540] [2020-07-20 22:01:50,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:01:50,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:01:50,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917177050] [2020-07-20 22:01:50,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:01:50,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:01:50,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:01:50,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:01:50,968 INFO L87 Difference]: Start difference. First operand 278 states and 406 transitions. Second operand 3 states. [2020-07-20 22:01:51,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:01:51,534 INFO L93 Difference]: Finished difference Result 820 states and 1215 transitions. [2020-07-20 22:01:51,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:01:51,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2020-07-20 22:01:51,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:01:51,540 INFO L225 Difference]: With dead ends: 820 [2020-07-20 22:01:51,540 INFO L226 Difference]: Without dead ends: 548 [2020-07-20 22:01:51,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 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 22:01:51,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-07-20 22:01:51,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2020-07-20 22:01:51,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2020-07-20 22:01:51,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 774 transitions. [2020-07-20 22:01:51,581 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 774 transitions. Word has length 127 [2020-07-20 22:01:51,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:01:51,581 INFO L479 AbstractCegarLoop]: Abstraction has 548 states and 774 transitions. [2020-07-20 22:01:51,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:01:51,582 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 774 transitions. [2020-07-20 22:01:51,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-20 22:01:51,584 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:01:51,585 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:01:51,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:01:51,800 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:01:51,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:01:51,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1554407470, now seen corresponding path program 1 times [2020-07-20 22:01:51,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:01:51,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [257704535] [2020-07-20 22:01:51,803 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 22:01:51,933 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:01:51,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:01:51,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 22:01:51,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:01:52,037 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:01:52,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:01:52,131 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:01:52,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [257704535] [2020-07-20 22:01:52,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:01:52,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 22:01:52,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367372155] [2020-07-20 22:01:52,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 22:01:52,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:01:52,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 22:01:52,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 22:01:52,145 INFO L87 Difference]: Start difference. First operand 548 states and 774 transitions. Second operand 7 states. [2020-07-20 22:01:53,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:01:53,106 INFO L93 Difference]: Finished difference Result 1388 states and 2008 transitions. [2020-07-20 22:01:53,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 22:01:53,106 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 152 [2020-07-20 22:01:53,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:01:53,112 INFO L225 Difference]: With dead ends: 1388 [2020-07-20 22:01:53,113 INFO L226 Difference]: Without dead ends: 846 [2020-07-20 22:01:53,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:01:53,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2020-07-20 22:01:53,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 695. [2020-07-20 22:01:53,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2020-07-20 22:01:53,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 977 transitions. [2020-07-20 22:01:53,167 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 977 transitions. Word has length 152 [2020-07-20 22:01:53,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:01:53,167 INFO L479 AbstractCegarLoop]: Abstraction has 695 states and 977 transitions. [2020-07-20 22:01:53,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 22:01:53,168 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 977 transitions. [2020-07-20 22:01:53,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-07-20 22:01:53,170 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:01:53,171 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:01:53,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:01:53,386 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:01:53,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:01:53,387 INFO L82 PathProgramCache]: Analyzing trace with hash 820217782, now seen corresponding path program 1 times [2020-07-20 22:01:53,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:01:53,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [97430997] [2020-07-20 22:01:53,388 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 22:01:53,520 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:01:53,520 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:01:53,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 22:01:53,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:01:53,596 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 24 proven. 19 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 22:01:53,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:01:53,700 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 41 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 22:01:53,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [97430997] [2020-07-20 22:01:53,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:01:53,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-07-20 22:01:53,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662547695] [2020-07-20 22:01:53,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 22:01:53,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:01:53,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 22:01:53,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 22:01:53,703 INFO L87 Difference]: Start difference. First operand 695 states and 977 transitions. Second operand 5 states. [2020-07-20 22:01:54,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:01:54,480 INFO L93 Difference]: Finished difference Result 1394 states and 1968 transitions. [2020-07-20 22:01:54,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 22:01:54,481 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-07-20 22:01:54,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:01:54,486 INFO L225 Difference]: With dead ends: 1394 [2020-07-20 22:01:54,486 INFO L226 Difference]: Without dead ends: 705 [2020-07-20 22:01:54,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 306 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:01:54,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2020-07-20 22:01:54,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 556. [2020-07-20 22:01:54,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-07-20 22:01:54,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 725 transitions. [2020-07-20 22:01:54,515 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 725 transitions. Word has length 156 [2020-07-20 22:01:54,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:01:54,515 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 725 transitions. [2020-07-20 22:01:54,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 22:01:54,516 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 725 transitions. [2020-07-20 22:01:54,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-07-20 22:01:54,519 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:01:54,520 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 22:01:54,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:01:54,735 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:01:54,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:01:54,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1525015186, now seen corresponding path program 1 times [2020-07-20 22:01:54,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:01:54,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1292549006] [2020-07-20 22:01:54,738 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 22:01:54,872 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:01:54,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:01:54,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 22:01:54,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:01:54,929 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-20 22:01:54,929 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:01:54,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1292549006] [2020-07-20 22:01:54,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:01:54,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:01:54,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76640020] [2020-07-20 22:01:54,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:01:54,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:01:54,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:01:54,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:01:54,932 INFO L87 Difference]: Start difference. First operand 556 states and 725 transitions. Second operand 3 states. [2020-07-20 22:01:55,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:01:55,520 INFO L93 Difference]: Finished difference Result 1511 states and 1991 transitions. [2020-07-20 22:01:55,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:01:55,521 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2020-07-20 22:01:55,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:01:55,522 INFO L225 Difference]: With dead ends: 1511 [2020-07-20 22:01:55,522 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 22:01:55,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 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 22:01:55,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 22:01:55,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 22:01:55,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 22:01:55,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 22:01:55,530 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 205 [2020-07-20 22:01:55,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:01:55,530 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 22:01:55,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:01:55,533 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 22:01:55,533 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 22:01:55,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:01:55,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 22:01:56,199 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2020-07-20 22:01:56,301 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:01:56,301 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~a21~0 |old(~a21~0)|) [2020-07-20 22:01:56,301 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:01:56,301 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-20 22:01:56,302 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-20 22:01:56,302 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,302 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,302 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,302 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,302 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,302 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,302 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-20 22:01:56,302 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-20 22:01:56,302 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-20 22:01:56,303 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-20 22:01:56,303 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-20 22:01:56,303 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-20 22:01:56,303 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-20 22:01:56,303 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-20 22:01:56,303 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-20 22:01:56,303 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-20 22:01:56,303 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,303 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,304 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,304 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,304 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,304 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,304 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-20 22:01:56,304 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-20 22:01:56,304 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-20 22:01:56,305 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-20 22:01:56,305 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-20 22:01:56,305 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-20 22:01:56,305 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-20 22:01:56,305 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-20 22:01:56,305 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-20 22:01:56,305 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-20 22:01:56,306 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-20 22:01:56,306 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 512) no Hoare annotation was computed. [2020-07-20 22:01:56,306 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-20 22:01:56,306 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-20 22:01:56,306 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-20 22:01:56,306 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-20 22:01:56,306 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,306 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,307 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,307 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,307 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,307 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-20 22:01:56,308 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-20 22:01:56,308 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-20 22:01:56,308 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-20 22:01:56,308 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-20 22:01:56,308 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-20 22:01:56,308 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-20 22:01:56,309 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-20 22:01:56,309 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-20 22:01:56,309 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,309 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,309 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,310 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,310 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,311 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-20 22:01:56,311 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-20 22:01:56,311 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-20 22:01:56,312 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-20 22:01:56,312 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-20 22:01:56,312 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-20 22:01:56,312 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-20 22:01:56,312 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-20 22:01:56,312 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-20 22:01:56,312 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-20 22:01:56,312 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-20 22:01:56,313 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-20 22:01:56,313 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-20 22:01:56,313 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,313 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,313 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,313 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,313 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,313 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-20 22:01:56,314 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-20 22:01:56,314 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-20 22:01:56,314 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-20 22:01:56,314 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-20 22:01:56,314 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-20 22:01:56,314 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-20 22:01:56,314 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-20 22:01:56,314 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-20 22:01:56,315 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,315 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,315 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,315 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,315 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,315 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,315 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-20 22:01:56,315 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,316 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-20 22:01:56,316 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-20 22:01:56,316 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-20 22:01:56,316 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-20 22:01:56,316 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-20 22:01:56,316 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-20 22:01:56,316 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-20 22:01:56,317 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-20 22:01:56,317 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-20 22:01:56,317 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-20 22:01:56,317 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-20 22:01:56,317 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-20 22:01:56,317 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-20 22:01:56,317 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,317 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,318 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,318 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,318 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,318 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-20 22:01:56,318 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-20 22:01:56,318 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-20 22:01:56,318 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-20 22:01:56,318 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-20 22:01:56,319 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-20 22:01:56,319 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-20 22:01:56,323 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-20 22:01:56,323 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,323 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,324 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,324 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,324 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,324 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-20 22:01:56,325 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-20 22:01:56,325 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-20 22:01:56,325 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-20 22:01:56,325 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-20 22:01:56,325 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-20 22:01:56,325 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-20 22:01:56,325 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-20 22:01:56,325 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-20 22:01:56,325 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-20 22:01:56,326 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse3 (not (<= |old(~a21~0)| 0))) (.cse2 (not (= 1 |old(~a20~0)|))) (.cse4 (= 1 ~a20~0)) (.cse0 (= ~a21~0 |old(~a21~0)|)) (.cse1 (not (= 1 |old(~a21~0)|)))) (and (or (not (<= |old(~a16~0)| 5)) (and (<= ~a16~0 5) .cse0) .cse1) (or .cse2 .cse3 .cse4) (or (not (<= 15 |old(~a8~0)|)) (and (<= 15 ~a8~0) .cse0) .cse1) (or .cse3 .cse0) (or .cse2 (and .cse4 .cse0) .cse1))) [2020-07-20 22:01:56,326 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-20 22:01:56,326 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,326 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,326 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,326 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,327 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-20 22:01:56,327 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,327 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,327 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-20 22:01:56,329 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-20 22:01:56,329 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-20 22:01:56,330 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-20 22:01:56,330 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-20 22:01:56,330 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-20 22:01:56,330 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-20 22:01:56,330 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-20 22:01:56,330 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-20 22:01:56,330 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-20 22:01:56,330 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-20 22:01:56,331 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-20 22:01:56,331 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,331 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,331 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,331 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,331 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,331 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-20 22:01:56,331 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,331 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-20 22:01:56,332 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-20 22:01:56,332 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-20 22:01:56,332 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-20 22:01:56,332 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-20 22:01:56,332 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-20 22:01:56,332 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-20 22:01:56,332 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-20 22:01:56,332 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-20 22:01:56,333 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-20 22:01:56,333 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-20 22:01:56,333 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-20 22:01:56,333 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-20 22:01:56,333 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-20 22:01:56,333 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,333 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,333 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,334 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,334 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,334 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:56,334 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-20 22:01:56,334 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-20 22:01:56,334 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-20 22:01:56,334 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-20 22:01:56,334 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-20 22:01:56,334 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-20 22:01:56,335 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-20 22:01:56,335 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-20 22:01:56,335 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-20 22:01:56,335 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-20 22:01:56,335 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:01:56,335 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a16~0 5) (<= 15 ~a8~0) (= 1 ~a21~0) (= 1 ~a20~0)) [2020-07-20 22:01:56,335 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 22:01:56,335 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:01:56,336 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a16~0)| 5)) (not (= 1 |old(~a21~0)|)) (and (<= ~a16~0 5) (<= 15 ~a8~0) (= 1 ~a20~0) (= ~a21~0 |old(~a21~0)|))) [2020-07-20 22:01:56,336 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-20 22:01:56,336 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (= 1 ~a21~0))) (or (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (<= ~a21~0 0) (and .cse0 (= 1 ~a20~0)) (and (<= 15 ~a8~0) .cse0) (not (<= |old(~a16~0)| 5)) (and (<= ~a16~0 5) .cse0) (not (= 1 |old(~a21~0)|)))) [2020-07-20 22:01:56,336 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-20 22:01:56,336 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-20 22:01:56,336 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= 1 ~a21~0))) (or (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (<= ~a21~0 0) (and .cse0 (= 1 ~a20~0)) (and (<= 15 ~a8~0) .cse0) (not (<= |old(~a16~0)| 5)) (and (<= ~a16~0 5) .cse0) (not (= 1 |old(~a21~0)|)))) [2020-07-20 22:01:56,337 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-20 22:01:56,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:01:56 BoogieIcfgContainer [2020-07-20 22:01:56,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 22:01:56,371 INFO L168 Benchmark]: Toolchain (without parser) took 9565.02 ms. Allocated memory was 144.2 MB in the beginning and 344.5 MB in the end (delta: 200.3 MB). Free memory was 98.5 MB in the beginning and 203.6 MB in the end (delta: -105.1 MB). Peak memory consumption was 95.2 MB. Max. memory is 7.1 GB. [2020-07-20 22:01:56,376 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.2 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 22:01:56,377 INFO L168 Benchmark]: CACSL2BoogieTranslator took 780.39 ms. Allocated memory was 144.2 MB in the beginning and 203.9 MB in the end (delta: 59.8 MB). Free memory was 98.3 MB in the beginning and 170.2 MB in the end (delta: -72.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. [2020-07-20 22:01:56,378 INFO L168 Benchmark]: Boogie Preprocessor took 117.19 ms. Allocated memory is still 203.9 MB. Free memory was 170.2 MB in the beginning and 165.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-20 22:01:56,379 INFO L168 Benchmark]: RCFGBuilder took 1284.62 ms. Allocated memory was 203.9 MB in the beginning and 234.9 MB in the end (delta: 30.9 MB). Free memory was 165.2 MB in the beginning and 179.1 MB in the end (delta: -13.8 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. [2020-07-20 22:01:56,380 INFO L168 Benchmark]: TraceAbstraction took 7375.81 ms. Allocated memory was 234.9 MB in the beginning and 344.5 MB in the end (delta: 109.6 MB). Free memory was 177.6 MB in the beginning and 203.6 MB in the end (delta: -26.0 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2020-07-20 22:01:56,383 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 144.2 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 780.39 ms. Allocated memory was 144.2 MB in the beginning and 203.9 MB in the end (delta: 59.8 MB). Free memory was 98.3 MB in the beginning and 170.2 MB in the end (delta: -72.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.19 ms. Allocated memory is still 203.9 MB. Free memory was 170.2 MB in the beginning and 165.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1284.62 ms. Allocated memory was 203.9 MB in the beginning and 234.9 MB in the end (delta: 30.9 MB). Free memory was 165.2 MB in the beginning and 179.1 MB in the end (delta: -13.8 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7375.81 ms. Allocated memory was 234.9 MB in the beginning and 344.5 MB in the end (delta: 109.6 MB). Free memory was 177.6 MB in the beginning and 203.6 MB in the end (delta: -26.0 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 512]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((!(1 == \old(a20)) || !(15 <= \old(a8))) || a21 <= 0) || (1 == a21 && 1 == a20)) || (15 <= a8 && 1 == a21)) || !(\old(a16) <= 5)) || (a16 <= 5 && 1 == a21)) || !(1 == \old(a21)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.6s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 169 SDtfs, 1191 SDslu, 103 SDs, 0 SdLazy, 2347 SolverSat, 449 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1066 GetRequests, 1049 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=695occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 300 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 29 PreInvPairs, 43 NumberOfFragments, 198 HoareAnnotationTreeSize, 29 FomulaSimplifications, 571 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 173 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 758 NumberOfCodeBlocks, 758 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1059 ConstructedInterpolants, 0 QuantifiedInterpolants, 393450 SizeOfPredicates, 8 NumberOfNonLiveVariables, 2022 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 249/274 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...