/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label53.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 22:02:03,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 22:02:03,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 22:02:03,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 22:02:03,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 22:02:03,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 22:02:03,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 22:02:03,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 22:02:03,988 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 22:02:03,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 22:02:03,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 22:02:03,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 22:02:03,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 22:02:03,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 22:02:03,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 22:02:04,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 22:02:04,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 22:02:04,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 22:02:04,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 22:02:04,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 22:02:04,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 22:02:04,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 22:02:04,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 22:02:04,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 22:02:04,023 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 22:02:04,023 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 22:02:04,023 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 22:02:04,024 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 22:02:04,025 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 22:02:04,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 22:02:04,026 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 22:02:04,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 22:02:04,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 22:02:04,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 22:02:04,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 22:02:04,029 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 22:02:04,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 22:02:04,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 22:02:04,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 22:02:04,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 22:02:04,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 22:02:04,032 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 22:02:04,046 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 22:02:04,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 22:02:04,047 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 22:02:04,047 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 22:02:04,048 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 22:02:04,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 22:02:04,048 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 22:02:04,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 22:02:04,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 22:02:04,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 22:02:04,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 22:02:04,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 22:02:04,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 22:02:04,049 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 22:02:04,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 22:02:04,050 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 22:02:04,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 22:02:04,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 22:02:04,050 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 22:02:04,051 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 22:02:04,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 22:02:04,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 22:02:04,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 22:02:04,051 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 22:02:04,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 22:02:04,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 22:02:04,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:02:04,052 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 22:02:04,052 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 22:02:04,052 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 22:02:04,351 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 22:02:04,365 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 22:02:04,368 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 22:02:04,370 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 22:02:04,371 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 22:02:04,372 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label53.c [2020-07-20 22:02:04,451 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c9fedde7/f738c6a55c0f491aa48e52455d25e627/FLAG2fe30ea72 [2020-07-20 22:02:05,106 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 22:02:05,112 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label53.c [2020-07-20 22:02:05,133 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c9fedde7/f738c6a55c0f491aa48e52455d25e627/FLAG2fe30ea72 [2020-07-20 22:02:05,400 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c9fedde7/f738c6a55c0f491aa48e52455d25e627 [2020-07-20 22:02:05,409 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 22:02:05,413 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 22:02:05,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 22:02:05,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 22:02:05,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 22:02:05,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:02:05" (1/1) ... [2020-07-20 22:02:05,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@82fd315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:02:05, skipping insertion in model container [2020-07-20 22:02:05,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:02:05" (1/1) ... [2020-07-20 22:02:05,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 22:02:05,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 22:02:06,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:02:06,034 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 22:02:06,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:02:06,246 INFO L208 MainTranslator]: Completed translation [2020-07-20 22:02:06,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:02:06 WrapperNode [2020-07-20 22:02:06,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 22:02:06,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 22:02:06,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 22:02:06,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 22:02:06,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:02:06" (1/1) ... [2020-07-20 22:02:06,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:02:06" (1/1) ... [2020-07-20 22:02:06,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:02:06" (1/1) ... [2020-07-20 22:02:06,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:02:06" (1/1) ... [2020-07-20 22:02:06,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:02:06" (1/1) ... [2020-07-20 22:02:06,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:02:06" (1/1) ... [2020-07-20 22:02:06,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:02:06" (1/1) ... [2020-07-20 22:02:06,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 22:02:06,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 22:02:06,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 22:02:06,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 22:02:06,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:02:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 22:02:06,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 22:02:06,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 22:02:06,476 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 22:02:06,476 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 22:02:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 22:02:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 22:02:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 22:02:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 22:02:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 22:02:06,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 22:02:06,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 22:02:07,720 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 22:02:07,721 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 22:02:07,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:02:07 BoogieIcfgContainer [2020-07-20 22:02:07,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 22:02:07,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 22:02:07,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 22:02:07,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 22:02:07,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:02:05" (1/3) ... [2020-07-20 22:02:07,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1113d152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:02:07, skipping insertion in model container [2020-07-20 22:02:07,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:02:06" (2/3) ... [2020-07-20 22:02:07,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1113d152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:02:07, skipping insertion in model container [2020-07-20 22:02:07,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:02:07" (3/3) ... [2020-07-20 22:02:07,736 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label53.c [2020-07-20 22:02:07,749 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 22:02:07,758 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 22:02:07,774 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 22:02:07,804 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 22:02:07,805 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 22:02:07,805 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 22:02:07,805 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 22:02:07,805 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 22:02:07,805 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 22:02:07,805 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 22:02:07,806 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 22:02:07,831 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-20 22:02:07,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-20 22:02:07,845 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:02:07,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:02:07,847 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:02:07,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:02:07,854 INFO L82 PathProgramCache]: Analyzing trace with hash 597031182, now seen corresponding path program 1 times [2020-07-20 22:02:07,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:02:07,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [231588857] [2020-07-20 22:02:07,865 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:02:08,074 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:02:08,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:02:08,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 22:02:08,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:02:08,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:02:08,196 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:02:08,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [231588857] [2020-07-20 22:02:08,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:02:08,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:02:08,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134066976] [2020-07-20 22:02:08,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:02:08,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:02:08,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:02:08,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:02:08,225 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-20 22:02:09,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:02:09,225 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2020-07-20 22:02:09,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:02:09,227 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-07-20 22:02:09,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:02:09,244 INFO L225 Difference]: With dead ends: 547 [2020-07-20 22:02:09,244 INFO L226 Difference]: Without dead ends: 278 [2020-07-20 22:02:09,251 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:02:09,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-20 22:02:09,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-20 22:02:09,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-20 22:02:09,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 400 transitions. [2020-07-20 22:02:09,323 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 400 transitions. Word has length 120 [2020-07-20 22:02:09,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:02:09,324 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 400 transitions. [2020-07-20 22:02:09,324 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:02:09,325 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 400 transitions. [2020-07-20 22:02:09,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-20 22:02:09,329 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:02:09,330 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:02:09,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:02:09,544 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:02:09,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:02:09,544 INFO L82 PathProgramCache]: Analyzing trace with hash 330455461, now seen corresponding path program 1 times [2020-07-20 22:02:09,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:02:09,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1604040154] [2020-07-20 22:02:09,546 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:02:09,689 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:02:09,689 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:02:09,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:02:09,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:02:09,796 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:02:09,796 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:02:09,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1604040154] [2020-07-20 22:02:09,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:02:09,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:02:09,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959069097] [2020-07-20 22:02:09,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:02:09,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:02:09,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:02:09,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:02:09,800 INFO L87 Difference]: Start difference. First operand 278 states and 400 transitions. Second operand 3 states. [2020-07-20 22:02:10,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:02:10,364 INFO L93 Difference]: Finished difference Result 820 states and 1199 transitions. [2020-07-20 22:02:10,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:02:10,365 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2020-07-20 22:02:10,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:02:10,372 INFO L225 Difference]: With dead ends: 820 [2020-07-20 22:02:10,372 INFO L226 Difference]: Without dead ends: 548 [2020-07-20 22:02:10,374 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:02:10,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-07-20 22:02:10,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 413. [2020-07-20 22:02:10,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-07-20 22:02:10,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 563 transitions. [2020-07-20 22:02:10,404 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 563 transitions. Word has length 130 [2020-07-20 22:02:10,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:02:10,405 INFO L479 AbstractCegarLoop]: Abstraction has 413 states and 563 transitions. [2020-07-20 22:02:10,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:02:10,406 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 563 transitions. [2020-07-20 22:02:10,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-20 22:02:10,409 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:02:10,410 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:02:10,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:02:10,625 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:02:10,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:02:10,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1219225115, now seen corresponding path program 1 times [2020-07-20 22:02:10,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:02:10,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [535376641] [2020-07-20 22:02:10,629 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:02:10,751 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:02:10,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:02:10,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:02:10,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:02:10,821 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:02:10,821 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:02:10,822 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [535376641] [2020-07-20 22:02:10,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:02:10,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:02:10,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246069575] [2020-07-20 22:02:10,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:02:10,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:02:10,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:02:10,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:02:10,824 INFO L87 Difference]: Start difference. First operand 413 states and 563 transitions. Second operand 3 states. [2020-07-20 22:02:11,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:02:11,363 INFO L93 Difference]: Finished difference Result 1225 states and 1703 transitions. [2020-07-20 22:02:11,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:02:11,363 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2020-07-20 22:02:11,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:02:11,372 INFO L225 Difference]: With dead ends: 1225 [2020-07-20 22:02:11,372 INFO L226 Difference]: Without dead ends: 818 [2020-07-20 22:02:11,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:02:11,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2020-07-20 22:02:11,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2020-07-20 22:02:11,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2020-07-20 22:02:11,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1082 transitions. [2020-07-20 22:02:11,406 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1082 transitions. Word has length 137 [2020-07-20 22:02:11,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:02:11,407 INFO L479 AbstractCegarLoop]: Abstraction has 818 states and 1082 transitions. [2020-07-20 22:02:11,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:02:11,407 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1082 transitions. [2020-07-20 22:02:11,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-20 22:02:11,411 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:02:11,412 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:02:11,626 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:02:11,627 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:02:11,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:02:11,628 INFO L82 PathProgramCache]: Analyzing trace with hash -2034569339, now seen corresponding path program 1 times [2020-07-20 22:02:11,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:02:11,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1347599318] [2020-07-20 22:02:11,630 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:02:11,760 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:02:11,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:02:11,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:02:11,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:02:11,852 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:02:11,853 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:02:11,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1347599318] [2020-07-20 22:02:11,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:02:11,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:02:11,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136750338] [2020-07-20 22:02:11,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:02:11,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:02:11,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:02:11,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:02:11,860 INFO L87 Difference]: Start difference. First operand 818 states and 1082 transitions. Second operand 3 states. [2020-07-20 22:02:12,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:02:12,483 INFO L93 Difference]: Finished difference Result 2035 states and 2762 transitions. [2020-07-20 22:02:12,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:02:12,485 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2020-07-20 22:02:12,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:02:12,494 INFO L225 Difference]: With dead ends: 2035 [2020-07-20 22:02:12,494 INFO L226 Difference]: Without dead ends: 1223 [2020-07-20 22:02:12,497 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:02:12,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2020-07-20 22:02:12,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 1223. [2020-07-20 22:02:12,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1223 states. [2020-07-20 22:02:12,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1601 transitions. [2020-07-20 22:02:12,549 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1601 transitions. Word has length 146 [2020-07-20 22:02:12,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:02:12,550 INFO L479 AbstractCegarLoop]: Abstraction has 1223 states and 1601 transitions. [2020-07-20 22:02:12,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:02:12,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1601 transitions. [2020-07-20 22:02:12,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-07-20 22:02:12,555 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:02:12,556 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:02:12,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:02:12,769 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:02:12,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:02:12,769 INFO L82 PathProgramCache]: Analyzing trace with hash 118923832, now seen corresponding path program 1 times [2020-07-20 22:02:12,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:02:12,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [631712196] [2020-07-20 22:02:12,770 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:02:12,891 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:02:12,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:02:12,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 22:02:12,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:02:12,943 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-07-20 22:02:12,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:02:12,944 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [631712196] [2020-07-20 22:02:12,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:02:12,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 22:02:12,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640967990] [2020-07-20 22:02:12,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 22:02:12,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:02:12,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 22:02:12,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 22:02:12,946 INFO L87 Difference]: Start difference. First operand 1223 states and 1601 transitions. Second operand 5 states. [2020-07-20 22:02:13,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:02:13,867 INFO L93 Difference]: Finished difference Result 3036 states and 4098 transitions. [2020-07-20 22:02:13,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 22:02:13,868 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 174 [2020-07-20 22:02:13,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:02:13,884 INFO L225 Difference]: With dead ends: 3036 [2020-07-20 22:02:13,884 INFO L226 Difference]: Without dead ends: 1819 [2020-07-20 22:02:13,888 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 22:02:13,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1819 states. [2020-07-20 22:02:13,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1819 to 1781. [2020-07-20 22:02:13,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1781 states. [2020-07-20 22:02:13,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 2305 transitions. [2020-07-20 22:02:13,964 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 2305 transitions. Word has length 174 [2020-07-20 22:02:13,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:02:13,965 INFO L479 AbstractCegarLoop]: Abstraction has 1781 states and 2305 transitions. [2020-07-20 22:02:13,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 22:02:13,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 2305 transitions. [2020-07-20 22:02:13,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-07-20 22:02:13,974 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:02:13,974 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, 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] [2020-07-20 22:02:14,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:02:14,189 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:02:14,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:02:14,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1521407610, now seen corresponding path program 1 times [2020-07-20 22:02:14,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:02:14,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [8830495] [2020-07-20 22:02:14,191 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:02:14,342 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:02:14,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:02:14,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 22:02:14,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:02:14,396 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:02:14,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:02:14,486 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:02:14,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [8830495] [2020-07-20 22:02:14,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:02:14,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 22:02:14,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647263896] [2020-07-20 22:02:14,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 22:02:14,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:02:14,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 22:02:14,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:02:14,490 INFO L87 Difference]: Start difference. First operand 1781 states and 2305 transitions. Second operand 6 states. [2020-07-20 22:02:15,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:02:15,315 INFO L93 Difference]: Finished difference Result 3894 states and 5179 transitions. [2020-07-20 22:02:15,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 22:02:15,316 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 175 [2020-07-20 22:02:15,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:02:15,339 INFO L225 Difference]: With dead ends: 3894 [2020-07-20 22:02:15,340 INFO L226 Difference]: Without dead ends: 2119 [2020-07-20 22:02:15,350 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:02:15,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2119 states. [2020-07-20 22:02:15,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2119 to 1666. [2020-07-20 22:02:15,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1666 states. [2020-07-20 22:02:15,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1666 states to 1666 states and 2053 transitions. [2020-07-20 22:02:15,441 INFO L78 Accepts]: Start accepts. Automaton has 1666 states and 2053 transitions. Word has length 175 [2020-07-20 22:02:15,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:02:15,442 INFO L479 AbstractCegarLoop]: Abstraction has 1666 states and 2053 transitions. [2020-07-20 22:02:15,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 22:02:15,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1666 states and 2053 transitions. [2020-07-20 22:02:15,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-20 22:02:15,448 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:02:15,448 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:02:15,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:02:15,663 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:02:15,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:02:15,664 INFO L82 PathProgramCache]: Analyzing trace with hash 795457010, now seen corresponding path program 1 times [2020-07-20 22:02:15,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:02:15,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786085496] [2020-07-20 22:02:15,665 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:02:15,809 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:02:15,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:02:15,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 22:02:15,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:02:15,876 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-20 22:02:15,877 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:02:15,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786085496] [2020-07-20 22:02:15,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:02:15,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:02:15,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109152573] [2020-07-20 22:02:15,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:02:15,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:02:15,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:02:15,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:02:15,879 INFO L87 Difference]: Start difference. First operand 1666 states and 2053 transitions. Second operand 3 states. [2020-07-20 22:02:16,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:02:16,430 INFO L93 Difference]: Finished difference Result 4414 states and 5526 transitions. [2020-07-20 22:02:16,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:02:16,431 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-07-20 22:02:16,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:02:16,432 INFO L225 Difference]: With dead ends: 4414 [2020-07-20 22:02:16,432 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 22:02:16,439 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:02:16,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 22:02:16,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 22:02:16,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 22:02:16,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 22:02:16,441 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 179 [2020-07-20 22:02:16,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:02:16,441 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 22:02:16,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:02:16,441 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 22:02:16,441 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 22:02:16,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:02:16,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 22:02:16,977 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 43 [2020-07-20 22:02:17,682 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 58 [2020-07-20 22:02:17,833 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2020-07-20 22:02:17,947 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2020-07-20 22:02:17,950 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:02:17,951 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a16~0 |old(~a16~0)|) (= ~a21~0 |old(~a21~0)|)) [2020-07-20 22:02:17,951 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:02:17,951 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-20 22:02:17,951 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-20 22:02:17,952 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,952 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,952 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,952 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,952 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,952 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,952 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-20 22:02:17,952 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-20 22:02:17,953 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-20 22:02:17,953 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-20 22:02:17,953 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-20 22:02:17,953 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-20 22:02:17,953 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-20 22:02:17,953 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-20 22:02:17,953 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-20 22:02:17,953 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-20 22:02:17,954 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,954 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,954 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,954 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,954 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,954 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,954 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-20 22:02:17,954 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-20 22:02:17,955 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-20 22:02:17,955 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-20 22:02:17,958 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-20 22:02:17,958 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-20 22:02:17,958 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-20 22:02:17,958 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-20 22:02:17,958 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-20 22:02:17,958 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-20 22:02:17,958 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-20 22:02:17,959 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 518) no Hoare annotation was computed. [2020-07-20 22:02:17,959 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-20 22:02:17,959 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-20 22:02:17,959 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-20 22:02:17,959 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-20 22:02:17,959 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,959 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,959 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,959 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,959 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,960 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-20 22:02:17,960 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-20 22:02:17,960 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-20 22:02:17,960 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-20 22:02:17,960 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-20 22:02:17,960 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-20 22:02:17,960 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-20 22:02:17,960 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-20 22:02:17,960 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-20 22:02:17,960 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,960 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,961 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,961 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,961 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,961 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-20 22:02:17,961 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-20 22:02:17,961 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-20 22:02:17,961 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-20 22:02:17,962 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-20 22:02:17,962 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-20 22:02:17,962 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-20 22:02:17,962 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-20 22:02:17,962 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-20 22:02:17,962 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-20 22:02:17,962 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-20 22:02:17,962 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-20 22:02:17,963 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-20 22:02:17,963 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,963 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,963 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,963 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,963 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,963 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-20 22:02:17,963 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-20 22:02:17,964 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-20 22:02:17,964 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-20 22:02:17,964 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-20 22:02:17,964 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-20 22:02:17,964 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-20 22:02:17,964 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-20 22:02:17,964 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-20 22:02:17,964 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,964 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,964 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,965 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,965 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,965 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,965 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-20 22:02:17,965 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,965 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-20 22:02:17,965 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-20 22:02:17,965 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-20 22:02:17,965 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-20 22:02:17,966 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-20 22:02:17,966 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-20 22:02:17,966 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-20 22:02:17,966 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-20 22:02:17,966 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-20 22:02:17,966 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-20 22:02:17,966 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-20 22:02:17,966 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-20 22:02:17,966 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-20 22:02:17,967 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,967 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,967 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,967 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,967 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,967 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-20 22:02:17,967 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-20 22:02:17,967 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-20 22:02:17,968 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-20 22:02:17,968 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-20 22:02:17,968 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-20 22:02:17,968 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-20 22:02:17,968 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-20 22:02:17,968 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,968 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,969 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,969 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,969 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,969 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-20 22:02:17,969 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-20 22:02:17,969 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-20 22:02:17,969 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-20 22:02:17,969 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-20 22:02:17,970 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-20 22:02:17,970 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-20 22:02:17,970 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-20 22:02:17,970 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-20 22:02:17,970 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-20 22:02:17,971 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (not (= 1 |old(~a20~0)|))) (.cse3 (= 1 ~a20~0)) (.cse10 (not (<= 15 |old(~a8~0)|))) (.cse12 (<= 5 ~a16~0)) (.cse8 (not (<= 5 |old(~a16~0)|))) (.cse2 (not (<= |old(~a8~0)| 13))) (.cse5 (<= ~a8~0 13)) (.cse4 (<= ~a16~0 |old(~a16~0)|)) (.cse11 (<= ~a17~0 0)) (.cse6 (= ~a21~0 |old(~a21~0)|)) (.cse1 (not (<= |old(~a16~0)| 5))) (.cse7 (not (= 1 |old(~a21~0)|))) (.cse9 (not (<= |old(~a17~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 (and .cse4 .cse5 .cse3 .cse6) .cse2 .cse7) (or (and (or .cse1 .cse8 .cse7 .cse9) (or .cse10 .cse8 .cse7 .cse9)) (and .cse11 .cse12)) (or .cse10 (and .cse4 (<= 15 ~a8~0) .cse6) .cse7) (or .cse0 .cse2 .cse9 (and .cse4 .cse5 .cse11 .cse3 .cse6)) (or .cse0 .cse10 .cse3 .cse7) (or .cse0 .cse1 .cse7 (and .cse4 .cse3 .cse6)) (or .cse10 .cse12 .cse8 .cse7) (or .cse1 .cse2 (and .cse4 .cse5 .cse6)) (or (and .cse4 .cse11 .cse6) .cse1 .cse7 .cse9))) [2020-07-20 22:02:17,971 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-20 22:02:17,971 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,971 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,971 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,971 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,971 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-20 22:02:17,971 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,971 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,972 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-20 22:02:17,972 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-20 22:02:17,972 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-20 22:02:17,972 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-20 22:02:17,972 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-20 22:02:17,972 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-20 22:02:17,972 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-20 22:02:17,972 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-20 22:02:17,972 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-20 22:02:17,973 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-20 22:02:17,973 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-20 22:02:17,973 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-20 22:02:17,973 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,973 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,973 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,973 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,973 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,974 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-20 22:02:17,974 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,974 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-20 22:02:17,974 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-20 22:02:17,974 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-20 22:02:17,974 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-20 22:02:17,974 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-20 22:02:17,974 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-20 22:02:17,974 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-20 22:02:17,975 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-20 22:02:17,975 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-20 22:02:17,975 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-20 22:02:17,975 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-20 22:02:17,975 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-20 22:02:17,975 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-20 22:02:17,975 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-20 22:02:17,975 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,976 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,976 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,976 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,976 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,976 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:02:17,976 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-20 22:02:17,976 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-20 22:02:17,976 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-20 22:02:17,976 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-20 22:02:17,977 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-20 22:02:17,977 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-20 22:02:17,977 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-20 22:02:17,977 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-20 22:02:17,977 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-20 22:02:17,977 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-20 22:02:17,977 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:02:17,978 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0) (= 1 ~a21~0) (= 1 ~a20~0)) [2020-07-20 22:02:17,978 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 22:02:17,978 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:02:17,978 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0) (= 1 ~a20~0) (= ~a21~0 |old(~a21~0)|)) (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a16~0)| 5)) (not (<= 5 |old(~a16~0)|)) (not (= 1 |old(~a21~0)|))) [2020-07-20 22:02:17,978 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-20 22:02:17,978 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (= 1 ~a21~0)) (.cse1 (<= ~a16~0 5)) (.cse3 (<= ~a8~0 13)) (.cse4 (<= ~a17~0 0)) (.cse2 (= 1 ~a20~0))) (or (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and (<= 15 ~a8~0) .cse0) (and .cse1 .cse0 .cse2) (and .cse3 .cse0 .cse2) (not (<= |old(~a16~0)| 5)) (and .cse4 .cse1 .cse0) (and .cse3 .cse1) (not (<= 5 |old(~a16~0)|)) (not (= 1 |old(~a21~0)|)) (and .cse3 .cse4 .cse2))) [2020-07-20 22:02:17,978 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-20 22:02:17,978 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-20 22:02:17,978 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= 1 ~a21~0)) (.cse1 (<= ~a16~0 5)) (.cse3 (<= ~a8~0 13)) (.cse4 (<= ~a17~0 0)) (.cse2 (= 1 ~a20~0))) (or (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and (<= 15 ~a8~0) .cse0) (and .cse1 .cse0 .cse2) (and .cse3 .cse0 .cse2) (not (<= |old(~a16~0)| 5)) (and .cse4 .cse1 .cse0) (and .cse3 .cse1) (not (<= 5 |old(~a16~0)|)) (not (= 1 |old(~a21~0)|)) (and .cse3 .cse4 .cse2))) [2020-07-20 22:02:17,979 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-20 22:02:18,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:02:18 BoogieIcfgContainer [2020-07-20 22:02:18,001 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 22:02:18,003 INFO L168 Benchmark]: Toolchain (without parser) took 12591.70 ms. Allocated memory was 136.3 MB in the beginning and 413.7 MB in the end (delta: 277.3 MB). Free memory was 98.6 MB in the beginning and 139.5 MB in the end (delta: -40.9 MB). Peak memory consumption was 236.5 MB. Max. memory is 7.1 GB. [2020-07-20 22:02:18,004 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 136.3 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 22:02:18,005 INFO L168 Benchmark]: CACSL2BoogieTranslator took 839.81 ms. Allocated memory was 136.3 MB in the beginning and 202.4 MB in the end (delta: 66.1 MB). Free memory was 98.2 MB in the beginning and 166.0 MB in the end (delta: -67.7 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. [2020-07-20 22:02:18,005 INFO L168 Benchmark]: Boogie Preprocessor took 135.45 ms. Allocated memory is still 202.4 MB. Free memory was 166.0 MB in the beginning and 160.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2020-07-20 22:02:18,006 INFO L168 Benchmark]: RCFGBuilder took 1336.16 ms. Allocated memory was 202.4 MB in the beginning and 231.2 MB in the end (delta: 28.8 MB). Free memory was 160.8 MB in the beginning and 175.4 MB in the end (delta: -14.7 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. [2020-07-20 22:02:18,007 INFO L168 Benchmark]: TraceAbstraction took 10272.26 ms. Allocated memory was 231.2 MB in the beginning and 413.7 MB in the end (delta: 182.5 MB). Free memory was 175.4 MB in the beginning and 139.5 MB in the end (delta: 35.9 MB). Peak memory consumption was 218.4 MB. Max. memory is 7.1 GB. [2020-07-20 22:02:18,011 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 136.3 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 839.81 ms. Allocated memory was 136.3 MB in the beginning and 202.4 MB in the end (delta: 66.1 MB). Free memory was 98.2 MB in the beginning and 166.0 MB in the end (delta: -67.7 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 135.45 ms. Allocated memory is still 202.4 MB. Free memory was 166.0 MB in the beginning and 160.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1336.16 ms. Allocated memory was 202.4 MB in the beginning and 231.2 MB in the end (delta: 28.8 MB). Free memory was 160.8 MB in the beginning and 175.4 MB in the end (delta: -14.7 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10272.26 ms. Allocated memory was 231.2 MB in the beginning and 413.7 MB in the end (delta: 182.5 MB). Free memory was 175.4 MB in the beginning and 139.5 MB in the end (delta: 35.9 MB). Peak memory consumption was 218.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 518]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((!(1 == \old(a20)) || !(15 <= \old(a8))) || (15 <= a8 && 1 == a21)) || ((a16 <= 5 && 1 == a21) && 1 == a20)) || ((a8 <= 13 && 1 == a21) && 1 == a20)) || !(\old(a16) <= 5)) || ((a17 <= 0 && a16 <= 5) && 1 == a21)) || (a8 <= 13 && a16 <= 5)) || !(5 <= \old(a16))) || !(1 == \old(a21))) || ((a8 <= 13 && a17 <= 0) && 1 == a20) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.8s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 604 SDtfs, 1062 SDslu, 134 SDs, 0 SdLazy, 2859 SolverSat, 572 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1236 GetRequests, 1218 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1781occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 626 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 72 PreInvPairs, 112 NumberOfFragments, 442 HoareAnnotationTreeSize, 72 FomulaSimplifications, 2315 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 961 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 1061 NumberOfCodeBlocks, 1061 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 1228 ConstructedInterpolants, 0 QuantifiedInterpolants, 427020 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2808 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 286/290 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...