/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 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label52.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:08:09,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 20:08:09,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 20:08:09,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 20:08:09,086 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 20:08:09,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 20:08:09,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 20:08:09,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 20:08:09,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 20:08:09,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 20:08:09,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 20:08:09,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 20:08:09,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:08:09,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:08:09,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:08:09,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:08:09,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:08:09,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:08:09,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:08:09,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:08:09,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:08:09,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:08:09,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:08:09,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:08:09,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 20:08:09,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 20:08:09,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 20:08:09,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 20:08:09,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 20:08:09,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 20:08:09,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 20:08:09,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 20:08:09,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 20:08:09,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 20:08:09,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 20:08:09,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 20:08:09,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 20:08:09,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 20:08:09,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 20:08:09,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 20:08:09,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 20:08:09,133 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 20:08:09,147 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:08:09,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:08:09,149 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:08:09,150 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:08:09,150 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:08:09,150 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:08:09,150 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:08:09,151 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:08:09,151 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:08:09,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:08:09,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:08:09,151 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:08:09,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:08:09,152 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:08:09,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:08:09,152 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:08:09,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:08:09,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:08:09,153 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:08:09,153 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:08:09,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:08:09,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:08:09,154 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:08:09,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:08:09,154 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:08:09,154 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:08:09,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:08:09,155 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:08:09,155 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:08:09,155 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 -> 2 [2020-07-21 20:08:09,431 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:08:09,448 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:08:09,452 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:08:09,454 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:08:09,454 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:08:09,455 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label52.c [2020-07-21 20:08:09,541 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d100813f/703df929a10649b1afcdd63b05a3a652/FLAG5ca7de883 [2020-07-21 20:08:10,082 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:08:10,083 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label52.c [2020-07-21 20:08:10,095 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d100813f/703df929a10649b1afcdd63b05a3a652/FLAG5ca7de883 [2020-07-21 20:08:10,432 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d100813f/703df929a10649b1afcdd63b05a3a652 [2020-07-21 20:08:10,444 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:08:10,448 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:08:10,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:08:10,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:08:10,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:08:10,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:08:10" (1/1) ... [2020-07-21 20:08:10,459 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d8e84bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:10, skipping insertion in model container [2020-07-21 20:08:10,459 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:08:10" (1/1) ... [2020-07-21 20:08:10,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:08:10,545 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:08:11,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:08:11,107 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:08:11,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:08:11,224 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:08:11,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:11 WrapperNode [2020-07-21 20:08:11,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:08:11,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:08:11,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:08:11,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:08:11,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:11" (1/1) ... [2020-07-21 20:08:11,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:11" (1/1) ... [2020-07-21 20:08:11,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:11" (1/1) ... [2020-07-21 20:08:11,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:11" (1/1) ... [2020-07-21 20:08:11,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:11" (1/1) ... [2020-07-21 20:08:11,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:11" (1/1) ... [2020-07-21 20:08:11,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:11" (1/1) ... [2020-07-21 20:08:11,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:08:11,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:08:11,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:08:11,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:08:11,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:08:11,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:08:11,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:08:11,447 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 20:08:11,447 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:08:11,448 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 20:08:11,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:08:11,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 20:08:11,449 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 20:08:11,449 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:08:11,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:08:11,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:08:12,636 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:08:12,637 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 20:08:12,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:08:12 BoogieIcfgContainer [2020-07-21 20:08:12,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:08:12,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:08:12,645 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:08:12,648 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:08:12,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:08:10" (1/3) ... [2020-07-21 20:08:12,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eaa93da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:08:12, skipping insertion in model container [2020-07-21 20:08:12,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:11" (2/3) ... [2020-07-21 20:08:12,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eaa93da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:08:12, skipping insertion in model container [2020-07-21 20:08:12,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:08:12" (3/3) ... [2020-07-21 20:08:12,652 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label52.c [2020-07-21 20:08:12,664 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:08:12,672 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:08:12,687 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:08:12,714 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:08:12,715 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:08:12,715 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:08:12,715 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:08:12,715 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:08:12,715 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:08:12,716 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:08:12,716 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:08:12,740 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 20:08:12,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-21 20:08:12,755 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:08:12,756 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:08:12,757 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:08:12,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:08:12,764 INFO L82 PathProgramCache]: Analyzing trace with hash -421627906, now seen corresponding path program 1 times [2020-07-21 20:08:12,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:08:12,775 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1324128284] [2020-07-21 20:08:12,776 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 20:08:12,976 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:08:12,976 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:08:12,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:08:12,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:08:13,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:08:13,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:08:13,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1324128284] [2020-07-21 20:08:13,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:08:13,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:08:13,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899522961] [2020-07-21 20:08:13,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:08:13,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:08:13,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:08:13,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:08:13,131 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-21 20:08:13,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:08:13,999 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2020-07-21 20:08:14,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:08:14,001 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2020-07-21 20:08:14,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:08:14,017 INFO L225 Difference]: With dead ends: 547 [2020-07-21 20:08:14,018 INFO L226 Difference]: Without dead ends: 278 [2020-07-21 20:08:14,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:08:14,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-21 20:08:14,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-21 20:08:14,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-21 20:08:14,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 406 transitions. [2020-07-21 20:08:14,099 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 406 transitions. Word has length 132 [2020-07-21 20:08:14,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:08:14,101 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 406 transitions. [2020-07-21 20:08:14,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:08:14,101 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 406 transitions. [2020-07-21 20:08:14,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-21 20:08:14,106 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:08:14,107 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:08:14,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:08:14,311 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:08:14,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:08:14,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1878869349, now seen corresponding path program 1 times [2020-07-21 20:08:14,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:08:14,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184517236] [2020-07-21 20:08:14,313 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 20:08:14,490 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:08:14,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:08:14,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:08:14,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:08:14,591 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:08:14,592 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:08:14,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1184517236] [2020-07-21 20:08:14,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:08:14,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:08:14,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580948341] [2020-07-21 20:08:14,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:08:14,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:08:14,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:08:14,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:08:14,598 INFO L87 Difference]: Start difference. First operand 278 states and 406 transitions. Second operand 3 states. [2020-07-21 20:08:15,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:08:15,176 INFO L93 Difference]: Finished difference Result 820 states and 1217 transitions. [2020-07-21 20:08:15,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:08:15,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 141 [2020-07-21 20:08:15,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:08:15,186 INFO L225 Difference]: With dead ends: 820 [2020-07-21 20:08:15,186 INFO L226 Difference]: Without dead ends: 548 [2020-07-21 20:08:15,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:08:15,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-07-21 20:08:15,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2020-07-21 20:08:15,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2020-07-21 20:08:15,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 764 transitions. [2020-07-21 20:08:15,227 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 764 transitions. Word has length 141 [2020-07-21 20:08:15,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:08:15,228 INFO L479 AbstractCegarLoop]: Abstraction has 548 states and 764 transitions. [2020-07-21 20:08:15,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:08:15,229 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 764 transitions. [2020-07-21 20:08:15,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-21 20:08:15,235 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:08:15,236 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:08:15,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:08:15,451 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:08:15,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:08:15,452 INFO L82 PathProgramCache]: Analyzing trace with hash 261581127, now seen corresponding path program 1 times [2020-07-21 20:08:15,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:08:15,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [732956724] [2020-07-21 20:08:15,455 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 20:08:15,595 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:08:15,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:08:15,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:08:15,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:08:15,658 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:08:15,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:08:15,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [732956724] [2020-07-21 20:08:15,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:08:15,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:08:15,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756007871] [2020-07-21 20:08:15,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:08:15,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:08:15,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:08:15,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:08:15,673 INFO L87 Difference]: Start difference. First operand 548 states and 764 transitions. Second operand 3 states. [2020-07-21 20:08:16,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:08:16,217 INFO L93 Difference]: Finished difference Result 1495 states and 2131 transitions. [2020-07-21 20:08:16,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:08:16,218 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 151 [2020-07-21 20:08:16,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:08:16,227 INFO L225 Difference]: With dead ends: 1495 [2020-07-21 20:08:16,227 INFO L226 Difference]: Without dead ends: 953 [2020-07-21 20:08:16,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:08:16,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2020-07-21 20:08:16,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 953. [2020-07-21 20:08:16,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 953 states. [2020-07-21 20:08:16,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1308 transitions. [2020-07-21 20:08:16,289 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1308 transitions. Word has length 151 [2020-07-21 20:08:16,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:08:16,289 INFO L479 AbstractCegarLoop]: Abstraction has 953 states and 1308 transitions. [2020-07-21 20:08:16,290 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:08:16,290 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1308 transitions. [2020-07-21 20:08:16,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-07-21 20:08:16,300 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:08:16,300 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:08:16,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:08:16,516 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:08:16,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:08:16,517 INFO L82 PathProgramCache]: Analyzing trace with hash 140681798, now seen corresponding path program 1 times [2020-07-21 20:08:16,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:08:16,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1735797480] [2020-07-21 20:08:16,519 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 20:08:16,677 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:08:16,678 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:08:16,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:08:16,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:08:16,729 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-21 20:08:16,730 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:08:16,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1735797480] [2020-07-21 20:08:16,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:08:16,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:08:16,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019269972] [2020-07-21 20:08:16,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:08:16,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:08:16,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:08:16,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:08:16,732 INFO L87 Difference]: Start difference. First operand 953 states and 1308 transitions. Second operand 3 states. [2020-07-21 20:08:17,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:08:17,347 INFO L93 Difference]: Finished difference Result 2168 states and 3011 transitions. [2020-07-21 20:08:17,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:08:17,349 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2020-07-21 20:08:17,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:08:17,350 INFO L225 Difference]: With dead ends: 2168 [2020-07-21 20:08:17,350 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 20:08:17,355 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:08:17,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 20:08:17,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 20:08:17,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 20:08:17,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 20:08:17,357 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 166 [2020-07-21 20:08:17,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:08:17,357 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 20:08:17,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:08:17,357 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 20:08:17,357 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 20:08:17,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:08:17,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 20:08:17,822 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:08:17,822 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:08:17,822 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:08:17,822 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 20:08:17,823 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 20:08:17,823 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,823 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,823 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,825 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,825 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,825 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,825 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 20:08:17,825 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 20:08:17,826 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 20:08:17,826 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 20:08:17,826 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 20:08:17,826 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 20:08:17,826 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 20:08:17,826 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 20:08:17,826 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 20:08:17,827 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 20:08:17,827 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,828 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,828 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,828 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,828 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,828 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,828 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 20:08:17,828 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 20:08:17,829 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 20:08:17,829 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 20:08:17,829 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 20:08:17,829 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 20:08:17,829 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 20:08:17,829 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 20:08:17,829 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 20:08:17,829 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 20:08:17,830 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 20:08:17,830 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 554) no Hoare annotation was computed. [2020-07-21 20:08:17,830 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 20:08:17,831 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 20:08:17,831 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 20:08:17,831 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 20:08:17,834 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,834 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,834 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,835 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,835 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,835 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 20:08:17,835 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 20:08:17,835 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 20:08:17,835 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 20:08:17,835 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 20:08:17,836 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 20:08:17,836 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 20:08:17,836 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 20:08:17,836 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 20:08:17,836 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,836 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,836 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,836 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,837 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,837 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 20:08:17,837 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 20:08:17,837 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 20:08:17,837 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 20:08:17,837 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 20:08:17,837 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 20:08:17,837 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 20:08:17,838 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 20:08:17,838 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 20:08:17,838 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 20:08:17,838 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 20:08:17,838 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 20:08:17,838 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 20:08:17,838 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,838 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,839 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,839 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,839 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,839 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 20:08:17,839 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 20:08:17,839 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 20:08:17,839 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 20:08:17,840 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 20:08:17,840 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 20:08:17,840 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 20:08:17,840 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 20:08:17,840 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 20:08:17,840 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,840 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,840 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,840 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,840 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,840 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,840 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 20:08:17,841 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,841 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 20:08:17,841 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 20:08:17,841 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 20:08:17,841 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 20:08:17,841 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 20:08:17,841 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 20:08:17,841 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 20:08:17,841 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 20:08:17,841 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 20:08:17,841 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 20:08:17,841 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 20:08:17,841 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 20:08:17,842 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 20:08:17,842 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,842 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,842 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,842 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,842 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,842 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 20:08:17,842 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 20:08:17,842 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 20:08:17,842 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 20:08:17,843 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 20:08:17,843 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 20:08:17,843 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 20:08:17,843 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 20:08:17,843 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,843 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,843 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,843 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,843 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,843 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 20:08:17,843 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 20:08:17,844 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 20:08:17,844 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 20:08:17,844 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 20:08:17,844 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 20:08:17,844 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 20:08:17,844 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 20:08:17,844 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 20:08:17,844 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 20:08:17,844 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse3 (not (<= |old(~a16~0)| 5))) (.cse1 (not (<= |old(~a20~0)| 0))) (.cse2 (<= ~a20~0 0)) (.cse0 (not (<= 15 |old(~a8~0)|)))) (and (or .cse0 .cse1 .cse2) (or (<= ~a8~0 13) (not (<= |old(~a8~0)| 13))) (or .cse3 (<= ~a16~0 5)) (or .cse3 .cse1 .cse2) (or .cse0 (<= 15 ~a8~0)))) [2020-07-21 20:08:17,844 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 20:08:17,844 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,845 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,845 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,845 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,845 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 20:08:17,845 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,845 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,845 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 20:08:17,845 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 20:08:17,845 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 20:08:17,845 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 20:08:17,845 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 20:08:17,845 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 20:08:17,845 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 20:08:17,846 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 20:08:17,846 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 20:08:17,846 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 20:08:17,846 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 20:08:17,846 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 20:08:17,846 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,846 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,846 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,846 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,846 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,846 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 20:08:17,846 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,846 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 20:08:17,847 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 20:08:17,847 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 20:08:17,847 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 20:08:17,847 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 20:08:17,847 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 20:08:17,847 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 20:08:17,847 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 20:08:17,847 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 20:08:17,847 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 20:08:17,848 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 20:08:17,848 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 20:08:17,848 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 20:08:17,848 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 20:08:17,848 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,848 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,848 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,848 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,849 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,849 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:17,849 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 20:08:17,849 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 20:08:17,849 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 20:08:17,849 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 20:08:17,849 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 20:08:17,849 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 20:08:17,850 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 20:08:17,850 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 20:08:17,850 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 20:08:17,850 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 20:08:17,850 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:08:17,850 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a16~0 5) (<= 15 ~a8~0)) [2020-07-21 20:08:17,851 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:08:17,851 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:08:17,851 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a16~0)| 5)) (and (<= ~a16~0 5) (<= 15 ~a8~0))) [2020-07-21 20:08:17,851 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 20:08:17,851 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (or (<= ~a8~0 13) (not (<= 15 |old(~a8~0)|)) (<= 15 ~a8~0) (<= ~a16~0 5) (not (<= |old(~a16~0)| 5))) [2020-07-21 20:08:17,851 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 20:08:17,851 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 20:08:17,852 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (or (<= ~a8~0 13) (not (<= 15 |old(~a8~0)|)) (<= 15 ~a8~0) (<= ~a16~0 5) (not (<= |old(~a16~0)| 5))) [2020-07-21 20:08:17,852 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 20:08:17,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:08:17 BoogieIcfgContainer [2020-07-21 20:08:17,871 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:08:17,874 INFO L168 Benchmark]: Toolchain (without parser) took 7428.19 ms. Allocated memory was 137.4 MB in the beginning and 300.4 MB in the end (delta: 163.1 MB). Free memory was 99.2 MB in the beginning and 102.6 MB in the end (delta: -3.4 MB). Peak memory consumption was 159.7 MB. Max. memory is 7.1 GB. [2020-07-21 20:08:17,875 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 137.4 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 20:08:17,876 INFO L168 Benchmark]: CACSL2BoogieTranslator took 776.00 ms. Allocated memory was 137.4 MB in the beginning and 203.9 MB in the end (delta: 66.6 MB). Free memory was 99.0 MB in the beginning and 170.1 MB in the end (delta: -71.1 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. [2020-07-21 20:08:17,877 INFO L168 Benchmark]: Boogie Preprocessor took 136.78 ms. Allocated memory is still 203.9 MB. Free memory was 170.1 MB in the beginning and 165.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 20:08:17,878 INFO L168 Benchmark]: RCFGBuilder took 1280.23 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 165.1 MB in the beginning and 179.7 MB in the end (delta: -14.7 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. [2020-07-21 20:08:17,879 INFO L168 Benchmark]: TraceAbstraction took 5226.84 ms. Allocated memory was 234.4 MB in the beginning and 300.4 MB in the end (delta: 66.1 MB). Free memory was 178.2 MB in the beginning and 102.6 MB in the end (delta: 75.7 MB). Peak memory consumption was 141.7 MB. Max. memory is 7.1 GB. [2020-07-21 20:08:17,883 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 137.4 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 776.00 ms. Allocated memory was 137.4 MB in the beginning and 203.9 MB in the end (delta: 66.6 MB). Free memory was 99.0 MB in the beginning and 170.1 MB in the end (delta: -71.1 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 136.78 ms. Allocated memory is still 203.9 MB. Free memory was 170.1 MB in the beginning and 165.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1280.23 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 165.1 MB in the beginning and 179.7 MB in the end (delta: -14.7 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5226.84 ms. Allocated memory was 234.4 MB in the beginning and 300.4 MB in the end (delta: 66.1 MB). Free memory was 178.2 MB in the beginning and 102.6 MB in the end (delta: 75.7 MB). Peak memory consumption was 141.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 554]: 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: (((a8 <= 13 || !(15 <= \old(a8))) || 15 <= a8) || a16 <= 5) || !(\old(a16) <= 5) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.8s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 490 SDtfs, 139 SDslu, 55 SDs, 0 SdLazy, 1410 SolverSat, 310 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 586 GetRequests, 582 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=953occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 29 PreInvPairs, 47 NumberOfFragments, 110 HoareAnnotationTreeSize, 29 FomulaSimplifications, 96 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 86 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 590 NumberOfCodeBlocks, 590 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 586 ConstructedInterpolants, 0 QuantifiedInterpolants, 236764 SizeOfPredicates, 9 NumberOfNonLiveVariables, 1522 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 61/61 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...