/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/Problem01_label49.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:25:58,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 11:25:58,032 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 11:25:58,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 11:25:58,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:25:58,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:25:58,053 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:25:58,055 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:25:58,057 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:25:58,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:25:58,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:25:58,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:25:58,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:25:58,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:25:58,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:25:58,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:25:58,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:25:58,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:25:58,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:25:58,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:25:58,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:25:58,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:25:58,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:25:58,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:25:58,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 11:25:58,075 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 11:25:58,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 11:25:58,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 11:25:58,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 11:25:58,078 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 11:25:58,078 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 11:25:58,079 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 11:25:58,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 11:25:58,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 11:25:58,081 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 11:25:58,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 11:25:58,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 11:25:58,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 11:25:58,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:25:58,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:25:58,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:25:58,085 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 [2020-07-21 11:25:58,099 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:25:58,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:25:58,100 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:25:58,101 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:25:58,101 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:25:58,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:25:58,101 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:25:58,101 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:25:58,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:25:58,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:25:58,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:25:58,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:25:58,102 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:25:58,103 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:25:58,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:25:58,103 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:25:58,103 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:25:58,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:25:58,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:25:58,104 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:25:58,104 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:25:58,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:25:58,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:25:58,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:25:58,105 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:25:58,105 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:25:58,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:58,105 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:25:58,105 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:25:58,106 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 [2020-07-21 11:25:58,372 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:25:58,385 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:25:58,389 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:25:58,390 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:25:58,390 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:25:58,391 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label49.c [2020-07-21 11:25:58,466 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff409b534/b0febdd6cb5740f9a48b072dbfd88565/FLAGf6364b649 [2020-07-21 11:25:59,071 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:25:59,072 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label49.c [2020-07-21 11:25:59,097 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff409b534/b0febdd6cb5740f9a48b072dbfd88565/FLAGf6364b649 [2020-07-21 11:25:59,335 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff409b534/b0febdd6cb5740f9a48b072dbfd88565 [2020-07-21 11:25:59,345 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:25:59,349 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:25:59,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:25:59,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:25:59,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:25:59,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:25:59" (1/1) ... [2020-07-21 11:25:59,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e0812af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:59, skipping insertion in model container [2020-07-21 11:25:59,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:25:59" (1/1) ... [2020-07-21 11:25:59,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:25:59,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:25:59,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:25:59,828 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:26:00,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:26:00,101 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:26:00,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:00 WrapperNode [2020-07-21 11:26:00,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:26:00,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:26:00,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:26:00,103 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:26:00,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:00" (1/1) ... [2020-07-21 11:26:00,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:00" (1/1) ... [2020-07-21 11:26:00,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:00" (1/1) ... [2020-07-21 11:26:00,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:00" (1/1) ... [2020-07-21 11:26:00,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:00" (1/1) ... [2020-07-21 11:26:00,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:00" (1/1) ... [2020-07-21 11:26:00,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:00" (1/1) ... [2020-07-21 11:26:00,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:26:00,264 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:26:00,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:26:00,265 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:26:00,266 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:00" (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 [2020-07-21 11:26:00,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:26:00,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:26:00,330 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 11:26:00,330 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:26:00,330 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 11:26:00,330 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:26:00,330 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 11:26:00,331 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 11:26:00,331 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:26:00,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:26:00,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:26:01,460 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:26:01,460 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 11:26:01,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:26:01 BoogieIcfgContainer [2020-07-21 11:26:01,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:26:01,468 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:26:01,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:26:01,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:26:01,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:25:59" (1/3) ... [2020-07-21 11:26:01,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@167ed5b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:26:01, skipping insertion in model container [2020-07-21 11:26:01,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:00" (2/3) ... [2020-07-21 11:26:01,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@167ed5b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:26:01, skipping insertion in model container [2020-07-21 11:26:01,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:26:01" (3/3) ... [2020-07-21 11:26:01,476 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label49.c [2020-07-21 11:26:01,489 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:26:01,498 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:26:01,516 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:26:01,543 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:26:01,543 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:26:01,543 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:26:01,543 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:26:01,544 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:26:01,544 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:26:01,544 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:26:01,544 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:26:01,567 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 11:26:01,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-07-21 11:26:01,580 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:26:01,581 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] [2020-07-21 11:26:01,582 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:26:01,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:26:01,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1048845111, now seen corresponding path program 1 times [2020-07-21 11:26:01,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:26:01,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [630941555] [2020-07-21 11:26:01,599 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 [2020-07-21 11:26:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:26:01,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:26:01,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:26:01,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:26:01,866 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:26:01,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [630941555] [2020-07-21 11:26:01,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:26:01,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:26:01,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618180904] [2020-07-21 11:26:01,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:26:01,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:26:01,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:26:01,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:26:01,893 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-21 11:26:02,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:26:02,790 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2020-07-21 11:26:02,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:26:02,792 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2020-07-21 11:26:02,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:26:02,823 INFO L225 Difference]: With dead ends: 547 [2020-07-21 11:26:02,823 INFO L226 Difference]: Without dead ends: 278 [2020-07-21 11:26:02,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:26:02,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-21 11:26:02,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-21 11:26:02,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-21 11:26:02,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 406 transitions. [2020-07-21 11:26:02,941 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 406 transitions. Word has length 113 [2020-07-21 11:26:02,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:26:02,944 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 406 transitions. [2020-07-21 11:26:02,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:26:02,945 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 406 transitions. [2020-07-21 11:26:02,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-07-21 11:26:02,958 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:26:02,959 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] [2020-07-21 11:26:03,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:26:03,172 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:26:03,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:26:03,173 INFO L82 PathProgramCache]: Analyzing trace with hash -751137862, now seen corresponding path program 1 times [2020-07-21 11:26:03,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:26:03,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1385409861] [2020-07-21 11:26:03,174 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 [2020-07-21 11:26:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:26:03,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:26:03,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:26:03,333 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:26:03,333 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:26:03,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1385409861] [2020-07-21 11:26:03,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:26:03,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:26:03,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100589862] [2020-07-21 11:26:03,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:26:03,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:26:03,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:26:03,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:26:03,337 INFO L87 Difference]: Start difference. First operand 278 states and 406 transitions. Second operand 5 states. [2020-07-21 11:26:04,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:26:04,138 INFO L93 Difference]: Finished difference Result 842 states and 1252 transitions. [2020-07-21 11:26:04,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:26:04,142 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 122 [2020-07-21 11:26:04,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:26:04,148 INFO L225 Difference]: With dead ends: 842 [2020-07-21 11:26:04,148 INFO L226 Difference]: Without dead ends: 570 [2020-07-21 11:26:04,150 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:26:04,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-07-21 11:26:04,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 556. [2020-07-21 11:26:04,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-07-21 11:26:04,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 785 transitions. [2020-07-21 11:26:04,186 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 785 transitions. Word has length 122 [2020-07-21 11:26:04,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:26:04,187 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 785 transitions. [2020-07-21 11:26:04,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:26:04,187 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 785 transitions. [2020-07-21 11:26:04,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-21 11:26:04,190 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:26:04,190 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2020-07-21 11:26:04,403 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:26:04,404 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:26:04,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:26:04,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1185224365, now seen corresponding path program 1 times [2020-07-21 11:26:04,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:26:04,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1686794566] [2020-07-21 11:26:04,407 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 [2020-07-21 11:26:04,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:26:04,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:26:04,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:26:04,567 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-21 11:26:04,568 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:26:04,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1686794566] [2020-07-21 11:26:04,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:26:04,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:26:04,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81765856] [2020-07-21 11:26:04,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:26:04,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:26:04,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:26:04,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:26:04,571 INFO L87 Difference]: Start difference. First operand 556 states and 785 transitions. Second operand 3 states. [2020-07-21 11:26:05,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:26:05,197 INFO L93 Difference]: Finished difference Result 1652 states and 2381 transitions. [2020-07-21 11:26:05,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:26:05,198 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-07-21 11:26:05,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:26:05,206 INFO L225 Difference]: With dead ends: 1652 [2020-07-21 11:26:05,206 INFO L226 Difference]: Without dead ends: 1102 [2020-07-21 11:26:05,208 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 [2020-07-21 11:26:05,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2020-07-21 11:26:05,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1102. [2020-07-21 11:26:05,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1102 states. [2020-07-21 11:26:05,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1512 transitions. [2020-07-21 11:26:05,261 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1512 transitions. Word has length 133 [2020-07-21 11:26:05,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:26:05,262 INFO L479 AbstractCegarLoop]: Abstraction has 1102 states and 1512 transitions. [2020-07-21 11:26:05,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:26:05,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1512 transitions. [2020-07-21 11:26:05,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-21 11:26:05,266 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:26:05,266 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:26:05,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:26:05,481 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:26:05,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:26:05,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1964219250, now seen corresponding path program 1 times [2020-07-21 11:26:05,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:26:05,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [953034194] [2020-07-21 11:26:05,484 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 [2020-07-21 11:26:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:26:05,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:26:05,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:26:05,615 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:26:05,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:26:05,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [953034194] [2020-07-21 11:26:05,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:26:05,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:26:05,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226866678] [2020-07-21 11:26:05,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:26:05,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:26:05,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:26:05,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:26:05,619 INFO L87 Difference]: Start difference. First operand 1102 states and 1512 transitions. Second operand 3 states. [2020-07-21 11:26:06,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:26:06,275 INFO L93 Difference]: Finished difference Result 3284 states and 4619 transitions. [2020-07-21 11:26:06,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:26:06,279 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2020-07-21 11:26:06,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:26:06,292 INFO L225 Difference]: With dead ends: 3284 [2020-07-21 11:26:06,292 INFO L226 Difference]: Without dead ends: 2188 [2020-07-21 11:26:06,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:26:06,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2188 states. [2020-07-21 11:26:06,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2188 to 1918. [2020-07-21 11:26:06,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1918 states. [2020-07-21 11:26:06,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1918 states to 1918 states and 2594 transitions. [2020-07-21 11:26:06,369 INFO L78 Accepts]: Start accepts. Automaton has 1918 states and 2594 transitions. Word has length 132 [2020-07-21 11:26:06,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:26:06,370 INFO L479 AbstractCegarLoop]: Abstraction has 1918 states and 2594 transitions. [2020-07-21 11:26:06,370 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:26:06,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1918 states and 2594 transitions. [2020-07-21 11:26:06,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-21 11:26:06,375 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:26:06,376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:26:06,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:26:06,591 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:26:06,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:26:06,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1661715812, now seen corresponding path program 1 times [2020-07-21 11:26:06,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:26:06,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2053600592] [2020-07-21 11:26:06,592 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 [2020-07-21 11:26:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:26:06,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:26:06,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:26:06,712 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:26:06,713 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:26:06,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2053600592] [2020-07-21 11:26:06,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:26:06,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:26:06,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428907981] [2020-07-21 11:26:06,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:26:06,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:26:06,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:26:06,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:26:06,715 INFO L87 Difference]: Start difference. First operand 1918 states and 2594 transitions. Second operand 5 states. [2020-07-21 11:26:07,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:26:07,539 INFO L93 Difference]: Finished difference Result 4968 states and 6868 transitions. [2020-07-21 11:26:07,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:26:07,540 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2020-07-21 11:26:07,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:26:07,561 INFO L225 Difference]: With dead ends: 4968 [2020-07-21 11:26:07,561 INFO L226 Difference]: Without dead ends: 3056 [2020-07-21 11:26:07,569 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:26:07,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3056 states. [2020-07-21 11:26:07,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3056 to 3044. [2020-07-21 11:26:07,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3044 states. [2020-07-21 11:26:07,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3044 states to 3044 states and 4045 transitions. [2020-07-21 11:26:07,686 INFO L78 Accepts]: Start accepts. Automaton has 3044 states and 4045 transitions. Word has length 141 [2020-07-21 11:26:07,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:26:07,687 INFO L479 AbstractCegarLoop]: Abstraction has 3044 states and 4045 transitions. [2020-07-21 11:26:07,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:26:07,687 INFO L276 IsEmpty]: Start isEmpty. Operand 3044 states and 4045 transitions. [2020-07-21 11:26:07,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-21 11:26:07,696 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:26:07,696 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:26:07,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:26:07,911 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:26:07,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:26:07,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1014667477, now seen corresponding path program 1 times [2020-07-21 11:26:07,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:26:07,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [775244511] [2020-07-21 11:26:07,912 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 [2020-07-21 11:26:08,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:26:08,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:26:08,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:26:08,053 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:26:08,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:26:08,191 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:26:08,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [775244511] [2020-07-21 11:26:08,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:26:08,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 11:26:08,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189019271] [2020-07-21 11:26:08,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 11:26:08,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:26:08,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 11:26:08,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:26:08,196 INFO L87 Difference]: Start difference. First operand 3044 states and 4045 transitions. Second operand 8 states. [2020-07-21 11:26:10,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:26:10,048 INFO L93 Difference]: Finished difference Result 10245 states and 14716 transitions. [2020-07-21 11:26:10,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 11:26:10,049 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 152 [2020-07-21 11:26:10,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:26:10,107 INFO L225 Difference]: With dead ends: 10245 [2020-07-21 11:26:10,114 INFO L226 Difference]: Without dead ends: 7207 [2020-07-21 11:26:10,129 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-07-21 11:26:10,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7207 states. [2020-07-21 11:26:10,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7207 to 4976. [2020-07-21 11:26:10,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4976 states. [2020-07-21 11:26:10,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4976 states to 4976 states and 6500 transitions. [2020-07-21 11:26:10,347 INFO L78 Accepts]: Start accepts. Automaton has 4976 states and 6500 transitions. Word has length 152 [2020-07-21 11:26:10,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:26:10,347 INFO L479 AbstractCegarLoop]: Abstraction has 4976 states and 6500 transitions. [2020-07-21 11:26:10,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 11:26:10,348 INFO L276 IsEmpty]: Start isEmpty. Operand 4976 states and 6500 transitions. [2020-07-21 11:26:10,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-07-21 11:26:10,365 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:26:10,365 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 11:26:10,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:26:10,579 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:26:10,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:26:10,580 INFO L82 PathProgramCache]: Analyzing trace with hash -938479511, now seen corresponding path program 1 times [2020-07-21 11:26:10,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:26:10,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1971300141] [2020-07-21 11:26:10,581 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 [2020-07-21 11:26:10,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:26:10,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:26:10,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:26:10,743 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 103 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-07-21 11:26:10,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:26:10,916 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 91 proven. 26 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-07-21 11:26:10,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1971300141] [2020-07-21 11:26:10,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:26:10,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:26:10,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057830146] [2020-07-21 11:26:10,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:26:10,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:26:10,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:26:10,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:26:10,919 INFO L87 Difference]: Start difference. First operand 4976 states and 6500 transitions. Second operand 6 states. [2020-07-21 11:26:11,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:26:11,992 INFO L93 Difference]: Finished difference Result 10958 states and 15077 transitions. [2020-07-21 11:26:11,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:26:11,992 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 187 [2020-07-21 11:26:11,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:26:12,028 INFO L225 Difference]: With dead ends: 10958 [2020-07-21 11:26:12,029 INFO L226 Difference]: Without dead ends: 5992 [2020-07-21 11:26:12,047 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 370 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:26:12,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5992 states. [2020-07-21 11:26:12,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5992 to 5538. [2020-07-21 11:26:12,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5538 states. [2020-07-21 11:26:12,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5538 states to 5538 states and 7144 transitions. [2020-07-21 11:26:12,266 INFO L78 Accepts]: Start accepts. Automaton has 5538 states and 7144 transitions. Word has length 187 [2020-07-21 11:26:12,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:26:12,267 INFO L479 AbstractCegarLoop]: Abstraction has 5538 states and 7144 transitions. [2020-07-21 11:26:12,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:26:12,267 INFO L276 IsEmpty]: Start isEmpty. Operand 5538 states and 7144 transitions. [2020-07-21 11:26:12,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-07-21 11:26:12,294 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:26:12,295 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:26:12,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:26:12,585 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:26:12,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:26:12,585 INFO L82 PathProgramCache]: Analyzing trace with hash 799366193, now seen corresponding path program 1 times [2020-07-21 11:26:12,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:26:12,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2130484350] [2020-07-21 11:26:12,586 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 [2020-07-21 11:26:12,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:26:12,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:26:12,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:26:12,740 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 94 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-07-21 11:26:12,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:26:12,834 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 90 proven. 38 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-21 11:26:12,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2130484350] [2020-07-21 11:26:12,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:26:12,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:26:12,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993773181] [2020-07-21 11:26:12,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:26:12,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:26:12,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:26:12,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:26:12,836 INFO L87 Difference]: Start difference. First operand 5538 states and 7144 transitions. Second operand 7 states. [2020-07-21 11:26:14,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:26:14,584 INFO L93 Difference]: Finished difference Result 14302 states and 19105 transitions. [2020-07-21 11:26:14,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:26:14,584 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2020-07-21 11:26:14,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:26:14,638 INFO L225 Difference]: With dead ends: 14302 [2020-07-21 11:26:14,638 INFO L226 Difference]: Without dead ends: 8774 [2020-07-21 11:26:14,655 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 391 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:26:14,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8774 states. [2020-07-21 11:26:14,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8774 to 7756. [2020-07-21 11:26:14,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7756 states. [2020-07-21 11:26:14,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7756 states to 7756 states and 9756 transitions. [2020-07-21 11:26:14,889 INFO L78 Accepts]: Start accepts. Automaton has 7756 states and 9756 transitions. Word has length 198 [2020-07-21 11:26:14,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:26:14,891 INFO L479 AbstractCegarLoop]: Abstraction has 7756 states and 9756 transitions. [2020-07-21 11:26:14,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:26:14,891 INFO L276 IsEmpty]: Start isEmpty. Operand 7756 states and 9756 transitions. [2020-07-21 11:26:14,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-07-21 11:26:14,918 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:26:14,920 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 11:26:15,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:26:15,136 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:26:15,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:26:15,137 INFO L82 PathProgramCache]: Analyzing trace with hash -679409593, now seen corresponding path program 1 times [2020-07-21 11:26:15,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:26:15,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [174522504] [2020-07-21 11:26:15,137 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 [2020-07-21 11:26:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:26:15,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:26:15,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:26:15,332 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-07-21 11:26:15,332 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:26:15,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [174522504] [2020-07-21 11:26:15,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:26:15,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:26:15,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435144126] [2020-07-21 11:26:15,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:26:15,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:26:15,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:26:15,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:26:15,334 INFO L87 Difference]: Start difference. First operand 7756 states and 9756 transitions. Second operand 3 states. [2020-07-21 11:26:15,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:26:15,926 INFO L93 Difference]: Finished difference Result 13459 states and 16929 transitions. [2020-07-21 11:26:15,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:26:15,927 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2020-07-21 11:26:15,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:26:15,928 INFO L225 Difference]: With dead ends: 13459 [2020-07-21 11:26:15,928 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 11:26:15,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:26:15,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 11:26:15,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 11:26:15,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 11:26:15,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 11:26:15,952 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 200 [2020-07-21 11:26:15,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:26:15,952 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 11:26:15,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:26:15,953 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 11:26:15,953 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 11:26:16,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:26:16,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 11:26:17,386 WARN L193 SmtUtils]: Spent 837.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 138 [2020-07-21 11:26:18,088 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 138 [2020-07-21 11:26:19,564 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 198 DAG size of output: 75 [2020-07-21 11:26:20,167 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 33 [2020-07-21 11:26:20,732 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 33 [2020-07-21 11:26:20,736 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:26:20,736 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a8~0 |old(~a8~0)|) (<= ~a16~0 |old(~a16~0)|) (<= |old(~a16~0)| ~a16~0) (<= ~a7~0 |old(~a7~0)|)) [2020-07-21 11:26:20,737 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:26:20,737 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 11:26:20,737 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 11:26:20,737 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,737 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,737 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,738 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,738 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,738 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,738 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 11:26:20,738 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 11:26:20,738 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 11:26:20,738 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 11:26:20,738 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 11:26:20,739 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 11:26:20,739 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 11:26:20,739 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 11:26:20,739 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 11:26:20,739 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 11:26:20,739 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,739 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,739 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,739 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,739 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,740 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,740 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 11:26:20,740 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 11:26:20,740 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 11:26:20,740 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 11:26:20,740 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 11:26:20,740 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 11:26:20,740 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 11:26:20,740 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 11:26:20,740 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 11:26:20,740 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 11:26:20,740 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 11:26:20,741 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 497) no Hoare annotation was computed. [2020-07-21 11:26:20,741 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 11:26:20,741 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 11:26:20,741 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 11:26:20,741 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 11:26:20,741 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,741 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,741 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,742 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,742 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,742 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 11:26:20,742 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 11:26:20,742 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 11:26:20,742 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 11:26:20,742 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 11:26:20,742 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 11:26:20,743 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 11:26:20,743 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 11:26:20,743 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 11:26:20,743 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,743 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,743 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,743 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,743 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,744 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 11:26:20,744 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 11:26:20,744 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 11:26:20,744 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 11:26:20,744 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 11:26:20,744 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 11:26:20,744 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 11:26:20,744 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 11:26:20,745 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 11:26:20,745 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 11:26:20,745 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 11:26:20,745 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 11:26:20,745 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 11:26:20,745 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,745 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,745 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,745 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,746 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,746 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 11:26:20,746 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 11:26:20,746 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 11:26:20,746 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 11:26:20,746 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 11:26:20,746 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 11:26:20,746 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 11:26:20,747 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 11:26:20,747 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 11:26:20,747 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,747 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,747 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,747 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,747 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,747 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,747 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 11:26:20,748 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,748 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 11:26:20,748 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 11:26:20,748 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 11:26:20,748 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 11:26:20,748 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 11:26:20,748 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 11:26:20,748 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 11:26:20,749 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 11:26:20,749 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 11:26:20,749 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 11:26:20,749 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 11:26:20,749 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 11:26:20,749 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 11:26:20,749 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,749 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,749 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,749 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,750 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,750 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 11:26:20,750 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 11:26:20,750 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 11:26:20,750 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 11:26:20,750 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 11:26:20,750 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 11:26:20,750 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 11:26:20,751 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 11:26:20,751 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,751 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,751 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,751 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,751 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,751 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 11:26:20,751 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 11:26:20,751 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 11:26:20,752 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 11:26:20,752 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 11:26:20,752 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 11:26:20,752 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 11:26:20,752 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 11:26:20,752 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 11:26:20,752 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 11:26:20,753 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse2 (not (<= 5 |old(~a16~0)|))) (.cse8 (<= ~a17~0 0)) (.cse11 (<= ~a20~0 0)) (.cse3 (not (<= |old(~a17~0)| 0))) (.cse0 (not (<= |old(~a16~0)| 5))) (.cse1 (not (<= |old(~a8~0)| 13))) (.cse10 (not (<= |old(~a20~0)| 0))) (.cse9 (not (<= 15 |old(~a8~0)|))) (.cse5 (<= ~a8~0 |old(~a8~0)|)) (.cse4 (<= ~a16~0 |old(~a16~0)|)) (.cse6 (<= |old(~a16~0)| ~a16~0)) (.cse7 (<= ~a7~0 |old(~a7~0)|))) (and (or (and (or .cse0 .cse1 (not (<= |old(~a16~0)| 4))) (or .cse2 .cse3)) (and .cse4 .cse5 .cse6 .cse7 (<= ~a16~0 4)) (and .cse4 .cse5 .cse6 .cse8 .cse7)) (or .cse9 .cse10 .cse11) (or (and .cse5 (<= ~a16~0 5) (<= 5 ~a16~0) .cse7) .cse0 .cse1 .cse2) (or (let ((.cse12 (not (<= |old(~a7~0)| 0)))) (and (or .cse12 .cse0) (or .cse12 .cse1))) (and .cse4 .cse5 .cse6 .cse7)) (or .cse9 .cse8 .cse3) (or (and .cse4 (or (and .cse6 .cse8 (< ~a8~0 15) .cse11 .cse7) (and (<= ~a8~0 13) .cse6 .cse11 .cse7))) (and (or .cse0 .cse10 (not (< |old(~a8~0)| 15)) .cse3) (or .cse0 .cse1 .cse10))) (or .cse9 (and .cse5 .cse4 .cse6 (<= 15 ~a8~0) .cse7)))) [2020-07-21 11:26:20,753 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 11:26:20,753 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,753 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,753 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,753 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,754 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 11:26:20,754 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,754 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,754 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 11:26:20,754 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 11:26:20,754 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 11:26:20,754 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 11:26:20,754 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 11:26:20,754 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 11:26:20,755 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 11:26:20,755 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 11:26:20,755 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 11:26:20,755 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 11:26:20,755 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 11:26:20,755 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 11:26:20,755 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,755 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,755 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,756 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,756 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,756 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 11:26:20,756 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,756 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 11:26:20,756 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 11:26:20,756 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 11:26:20,756 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 11:26:20,756 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 11:26:20,757 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 11:26:20,757 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 11:26:20,757 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 11:26:20,757 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 11:26:20,757 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 11:26:20,757 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 11:26:20,757 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 11:26:20,757 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 11:26:20,757 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 11:26:20,758 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,758 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,758 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,758 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,758 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,758 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:26:20,758 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 11:26:20,758 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 11:26:20,758 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 11:26:20,758 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 11:26:20,758 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 11:26:20,758 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 11:26:20,758 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 11:26:20,758 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 11:26:20,758 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 11:26:20,759 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 11:26:20,759 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:26:20,759 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0)) [2020-07-21 11:26:20,759 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:26:20,759 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:26:20,759 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (and (<= ~a8~0 |old(~a8~0)|) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0) (<= ~a7~0 |old(~a7~0)|)) (not (<= 5 |old(~a16~0)|))) [2020-07-21 11:26:20,759 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 11:26:20,759 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse2 (<= ~a16~0 5)) (.cse3 (<= ~a8~0 13)) (.cse1 (<= ~a7~0 0)) (.cse0 (<= ~a17~0 0))) (or (not (<= 15 |old(~a8~0)|)) (and .cse0 (<= ~a20~0 0)) (not (<= |old(~a7~0)| 0)) (<= 15 ~a8~0) (and .cse1 .cse2) (not (<= |old(~a16~0)| 5)) (and .cse3 .cse2) (not (<= 5 |old(~a16~0)|)) (and .cse3 .cse1) (and .cse0 (<= 5 ~a16~0)))) [2020-07-21 11:26:20,759 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 11:26:20,759 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 11:26:20,760 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse2 (<= ~a16~0 5)) (.cse3 (<= ~a8~0 13)) (.cse1 (<= ~a7~0 0)) (.cse0 (<= ~a17~0 0))) (or (not (<= 15 |old(~a8~0)|)) (and .cse0 (<= ~a20~0 0)) (not (<= |old(~a7~0)| 0)) (<= 15 ~a8~0) (and .cse1 .cse2) (not (<= |old(~a16~0)| 5)) (and .cse3 .cse2) (not (<= 5 |old(~a16~0)|)) (and .cse3 .cse1) (and .cse0 (<= 5 ~a16~0)))) [2020-07-21 11:26:20,760 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 11:26:20,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:26:20 BoogieIcfgContainer [2020-07-21 11:26:20,777 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:26:20,779 INFO L168 Benchmark]: Toolchain (without parser) took 21432.11 ms. Allocated memory was 137.9 MB in the beginning and 626.0 MB in the end (delta: 488.1 MB). Free memory was 99.7 MB in the beginning and 326.5 MB in the end (delta: -226.8 MB). Peak memory consumption was 445.1 MB. Max. memory is 7.1 GB. [2020-07-21 11:26:20,780 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 11:26:20,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 752.43 ms. Allocated memory was 137.9 MB in the beginning and 205.0 MB in the end (delta: 67.1 MB). Free memory was 99.5 MB in the beginning and 171.6 MB in the end (delta: -72.1 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. [2020-07-21 11:26:20,781 INFO L168 Benchmark]: Boogie Preprocessor took 161.38 ms. Allocated memory is still 205.0 MB. Free memory was 171.6 MB in the beginning and 166.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-21 11:26:20,782 INFO L168 Benchmark]: RCFGBuilder took 1202.46 ms. Allocated memory was 205.0 MB in the beginning and 236.5 MB in the end (delta: 31.5 MB). Free memory was 166.0 MB in the beginning and 180.6 MB in the end (delta: -14.6 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. [2020-07-21 11:26:20,783 INFO L168 Benchmark]: TraceAbstraction took 19308.95 ms. Allocated memory was 236.5 MB in the beginning and 626.0 MB in the end (delta: 389.5 MB). Free memory was 180.6 MB in the beginning and 326.5 MB in the end (delta: -145.9 MB). Peak memory consumption was 427.5 MB. Max. memory is 7.1 GB. [2020-07-21 11:26:20,787 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 752.43 ms. Allocated memory was 137.9 MB in the beginning and 205.0 MB in the end (delta: 67.1 MB). Free memory was 99.5 MB in the beginning and 171.6 MB in the end (delta: -72.1 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 161.38 ms. Allocated memory is still 205.0 MB. Free memory was 171.6 MB in the beginning and 166.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1202.46 ms. Allocated memory was 205.0 MB in the beginning and 236.5 MB in the end (delta: 31.5 MB). Free memory was 166.0 MB in the beginning and 180.6 MB in the end (delta: -14.6 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19308.95 ms. Allocated memory was 236.5 MB in the beginning and 626.0 MB in the end (delta: 389.5 MB). Free memory was 180.6 MB in the beginning and 326.5 MB in the end (delta: -145.9 MB). Peak memory consumption was 427.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 497]: 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: ((((((((!(15 <= \old(a8)) || (a17 <= 0 && a20 <= 0)) || !(\old(a7) <= 0)) || 15 <= a8) || (a7 <= 0 && a16 <= 5)) || !(\old(a16) <= 5)) || (a8 <= 13 && a16 <= 5)) || !(5 <= \old(a16))) || (a8 <= 13 && a7 <= 0)) || (a17 <= 0 && 5 <= a16) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.6s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 9.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 663 SDtfs, 2760 SDslu, 334 SDs, 0 SdLazy, 6841 SolverSat, 1045 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1930 GetRequests, 1887 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7756occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 3999 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 231 PreInvPairs, 345 NumberOfFragments, 397 HoareAnnotationTreeSize, 231 FomulaSimplifications, 57566 FormulaSimplificationTreeSizeReduction, 1.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 9400 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1378 NumberOfCodeBlocks, 1378 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1903 ConstructedInterpolants, 0 QuantifiedInterpolants, 548595 SizeOfPredicates, 13 NumberOfNonLiveVariables, 4023 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 856/928 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...