/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label00.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:24:03,634 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 11:24:03,640 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 11:24:03,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 11:24:03,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:24:03,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:24:03,672 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:24:03,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:24:03,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:24:03,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:24:03,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:24:03,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:24:03,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:24:03,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:24:03,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:24:03,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:24:03,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:24:03,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:24:03,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:24:03,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:24:03,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:24:03,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:24:03,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:24:03,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:24:03,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 11:24:03,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:24:03,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:24:03,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:24:03,727 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 11:24:03,748 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:24:03,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:24:03,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:24:03,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:24:03,750 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:24:03,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:24:03,750 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:24:03,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:24:03,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:24:03,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:24:03,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:24:03,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:24:03,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:24:03,751 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:24:03,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:24:03,752 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:24:03,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:24:03,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:24:03,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:24:03,753 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:24:03,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:24:03,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:24:03,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:24:03,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:24:03,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:24:03,754 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:24:03,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:03,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:24:03,755 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:24:03,755 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-21 11:24:04,111 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:24:04,131 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:24:04,137 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:24:04,139 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:24:04,140 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:24:04,141 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label00.c [2020-07-21 11:24:04,245 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d52ae41e/995b872fbf5b4cd0acc35d5111c9a673/FLAGbc3f65fe9 [2020-07-21 11:24:05,061 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:24:05,062 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label00.c [2020-07-21 11:24:05,085 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d52ae41e/995b872fbf5b4cd0acc35d5111c9a673/FLAGbc3f65fe9 [2020-07-21 11:24:05,209 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d52ae41e/995b872fbf5b4cd0acc35d5111c9a673 [2020-07-21 11:24:05,225 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:24:05,229 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:24:05,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:24:05,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:24:05,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:24:05,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:24:05" (1/1) ... [2020-07-21 11:24:05,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@748a131b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:24:05, skipping insertion in model container [2020-07-21 11:24:05,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:24:05" (1/1) ... [2020-07-21 11:24:05,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:24:05,307 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:24:05,889 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:24:05,897 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:24:06,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:24:06,180 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:24:06,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:24:06 WrapperNode [2020-07-21 11:24:06,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:24:06,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:24:06,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:24:06,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:24:06,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:24:06" (1/1) ... [2020-07-21 11:24:06,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:24:06" (1/1) ... [2020-07-21 11:24:06,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:24:06" (1/1) ... [2020-07-21 11:24:06,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:24:06" (1/1) ... [2020-07-21 11:24:06,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:24:06" (1/1) ... [2020-07-21 11:24:06,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:24:06" (1/1) ... [2020-07-21 11:24:06,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:24:06" (1/1) ... [2020-07-21 11:24:06,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:24:06,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:24:06,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:24:06,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:24:06,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:24:06" (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 [2020-07-21 11:24:06,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:24:06,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:24:06,430 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 11:24:06,431 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:24:06,431 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 11:24:06,431 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:24:06,431 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 11:24:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 11:24:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:24:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:24:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:24:07,990 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:24:07,991 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 11:24:07,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:24:07 BoogieIcfgContainer [2020-07-21 11:24:07,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:24:08,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:24:08,002 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:24:08,006 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:24:08,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:24:05" (1/3) ... [2020-07-21 11:24:08,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@189b3ae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:24:08, skipping insertion in model container [2020-07-21 11:24:08,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:24:06" (2/3) ... [2020-07-21 11:24:08,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@189b3ae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:24:08, skipping insertion in model container [2020-07-21 11:24:08,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:24:07" (3/3) ... [2020-07-21 11:24:08,013 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label00.c [2020-07-21 11:24:08,030 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:24:08,043 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:24:08,063 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:24:08,100 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:24:08,101 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:24:08,101 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:24:08,101 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:24:08,101 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:24:08,101 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:24:08,102 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:24:08,102 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:24:08,132 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 11:24:08,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-07-21 11:24:08,149 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:24:08,151 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] [2020-07-21 11:24:08,152 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:24:08,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:24:08,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1845535338, now seen corresponding path program 1 times [2020-07-21 11:24:08,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:24:08,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1656462541] [2020-07-21 11:24:08,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:08,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:24:08,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:24:08,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:24:08,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:24:08,582 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:24:08,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1656462541] [2020-07-21 11:24:08,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:24:08,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:24:08,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107409629] [2020-07-21 11:24:08,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:24:08,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:24:08,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:24:08,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:24:08,617 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-21 11:24:09,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:24:09,972 INFO L93 Difference]: Finished difference Result 572 states and 963 transitions. [2020-07-21 11:24:09,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:24:09,975 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2020-07-21 11:24:09,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:24:10,002 INFO L225 Difference]: With dead ends: 572 [2020-07-21 11:24:10,002 INFO L226 Difference]: Without dead ends: 278 [2020-07-21 11:24:10,012 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:24:10,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-21 11:24:10,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-21 11:24:10,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-21 11:24:10,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2020-07-21 11:24:10,109 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 114 [2020-07-21 11:24:10,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:24:10,110 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2020-07-21 11:24:10,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:24:10,111 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2020-07-21 11:24:10,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-07-21 11:24:10,115 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:24:10,116 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] [2020-07-21 11:24:10,330 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:10,330 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:24:10,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:24:10,331 INFO L82 PathProgramCache]: Analyzing trace with hash -457589907, now seen corresponding path program 1 times [2020-07-21 11:24:10,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:24:10,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1159706230] [2020-07-21 11:24:10,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:24:10,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:24:10,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:24:10,505 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:24:10,506 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:24:10,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1159706230] [2020-07-21 11:24:10,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:24:10,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:24:10,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240859524] [2020-07-21 11:24:10,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:24:10,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:24:10,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:24:10,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:24:10,512 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 5 states. [2020-07-21 11:24:11,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:24:11,666 INFO L93 Difference]: Finished difference Result 842 states and 1218 transitions. [2020-07-21 11:24:11,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:24:11,670 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-07-21 11:24:11,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:24:11,680 INFO L225 Difference]: With dead ends: 842 [2020-07-21 11:24:11,680 INFO L226 Difference]: Without dead ends: 570 [2020-07-21 11:24:11,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:24:11,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-07-21 11:24:11,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 556. [2020-07-21 11:24:11,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-07-21 11:24:11,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 785 transitions. [2020-07-21 11:24:11,751 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 785 transitions. Word has length 124 [2020-07-21 11:24:11,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:24:11,752 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 785 transitions. [2020-07-21 11:24:11,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:24:11,752 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 785 transitions. [2020-07-21 11:24:11,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-07-21 11:24:11,756 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:24:11,756 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 11:24:11,970 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:11,972 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:24:11,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:24:11,973 INFO L82 PathProgramCache]: Analyzing trace with hash -526425041, now seen corresponding path program 1 times [2020-07-21 11:24:11,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:24:11,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1381547819] [2020-07-21 11:24:11,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:24:12,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:24:12,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:24:12,162 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:24:12,162 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:24:12,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1381547819] [2020-07-21 11:24:12,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:24:12,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:24:12,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325122714] [2020-07-21 11:24:12,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:24:12,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:24:12,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:24:12,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:24:12,170 INFO L87 Difference]: Start difference. First operand 556 states and 785 transitions. Second operand 3 states. [2020-07-21 11:24:12,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:24:12,950 INFO L93 Difference]: Finished difference Result 1376 states and 1960 transitions. [2020-07-21 11:24:12,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:24:12,952 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2020-07-21 11:24:12,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:24:12,961 INFO L225 Difference]: With dead ends: 1376 [2020-07-21 11:24:12,961 INFO L226 Difference]: Without dead ends: 826 [2020-07-21 11:24:12,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:24:12,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2020-07-21 11:24:13,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 826. [2020-07-21 11:24:13,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 826 states. [2020-07-21 11:24:13,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1131 transitions. [2020-07-21 11:24:13,025 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1131 transitions. Word has length 125 [2020-07-21 11:24:13,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:24:13,026 INFO L479 AbstractCegarLoop]: Abstraction has 826 states and 1131 transitions. [2020-07-21 11:24:13,026 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:24:13,027 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1131 transitions. [2020-07-21 11:24:13,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 11:24:13,033 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:24:13,033 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 11:24:13,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:13,248 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:24:13,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:24:13,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1583976871, now seen corresponding path program 1 times [2020-07-21 11:24:13,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:24:13,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1780611988] [2020-07-21 11:24:13,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:24:13,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:24:13,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:24:13,408 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:24:13,408 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:24:13,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1780611988] [2020-07-21 11:24:13,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:24:13,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:24:13,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019719934] [2020-07-21 11:24:13,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:24:13,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:24:13,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:24:13,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:24:13,415 INFO L87 Difference]: Start difference. First operand 826 states and 1131 transitions. Second operand 3 states. [2020-07-21 11:24:14,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:24:14,296 INFO L93 Difference]: Finished difference Result 2053 states and 2864 transitions. [2020-07-21 11:24:14,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:24:14,298 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2020-07-21 11:24:14,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:24:14,309 INFO L225 Difference]: With dead ends: 2053 [2020-07-21 11:24:14,309 INFO L226 Difference]: Without dead ends: 1233 [2020-07-21 11:24:14,313 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:24:14,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1233 states. [2020-07-21 11:24:14,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1233 to 1233. [2020-07-21 11:24:14,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1233 states. [2020-07-21 11:24:14,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1233 states to 1233 states and 1630 transitions. [2020-07-21 11:24:14,372 INFO L78 Accepts]: Start accepts. Automaton has 1233 states and 1630 transitions. Word has length 129 [2020-07-21 11:24:14,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:24:14,373 INFO L479 AbstractCegarLoop]: Abstraction has 1233 states and 1630 transitions. [2020-07-21 11:24:14,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:24:14,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states and 1630 transitions. [2020-07-21 11:24:14,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-21 11:24:14,380 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:24:14,380 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 11:24:14,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:14,594 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:24:14,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:24:14,595 INFO L82 PathProgramCache]: Analyzing trace with hash -180924614, now seen corresponding path program 1 times [2020-07-21 11:24:14,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:24:14,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [310618233] [2020-07-21 11:24:14,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:14,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:24:14,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:24:14,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:24:14,762 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:24:14,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:24:14,873 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:24:14,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [310618233] [2020-07-21 11:24:14,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:24:14,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 11:24:14,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102814330] [2020-07-21 11:24:14,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 11:24:14,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:24:14,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 11:24:14,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:24:14,877 INFO L87 Difference]: Start difference. First operand 1233 states and 1630 transitions. Second operand 8 states. [2020-07-21 11:24:17,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:24:17,549 INFO L93 Difference]: Finished difference Result 4071 states and 5744 transitions. [2020-07-21 11:24:17,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 11:24:17,551 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 141 [2020-07-21 11:24:17,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:24:17,588 INFO L225 Difference]: With dead ends: 4071 [2020-07-21 11:24:17,588 INFO L226 Difference]: Without dead ends: 2844 [2020-07-21 11:24:17,598 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-07-21 11:24:17,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2020-07-21 11:24:17,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2347. [2020-07-21 11:24:17,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2347 states. [2020-07-21 11:24:17,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2347 states to 2347 states and 3031 transitions. [2020-07-21 11:24:17,797 INFO L78 Accepts]: Start accepts. Automaton has 2347 states and 3031 transitions. Word has length 141 [2020-07-21 11:24:17,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:24:17,798 INFO L479 AbstractCegarLoop]: Abstraction has 2347 states and 3031 transitions. [2020-07-21 11:24:17,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 11:24:17,799 INFO L276 IsEmpty]: Start isEmpty. Operand 2347 states and 3031 transitions. [2020-07-21 11:24:17,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-07-21 11:24:17,809 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:24:17,809 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] [2020-07-21 11:24:18,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:18,023 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:24:18,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:24:18,024 INFO L82 PathProgramCache]: Analyzing trace with hash 380307934, now seen corresponding path program 1 times [2020-07-21 11:24:18,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:24:18,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [558667759] [2020-07-21 11:24:18,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:18,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:24:18,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:24:18,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:24:18,182 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 11:24:18,182 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:24:18,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [558667759] [2020-07-21 11:24:18,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:24:18,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:24:18,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366198285] [2020-07-21 11:24:18,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:24:18,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:24:18,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:24:18,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:24:18,186 INFO L87 Difference]: Start difference. First operand 2347 states and 3031 transitions. Second operand 3 states. [2020-07-21 11:24:19,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:24:19,081 INFO L93 Difference]: Finished difference Result 6459 states and 8539 transitions. [2020-07-21 11:24:19,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:24:19,082 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-07-21 11:24:19,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:24:19,119 INFO L225 Difference]: With dead ends: 6459 [2020-07-21 11:24:19,128 INFO L226 Difference]: Without dead ends: 4122 [2020-07-21 11:24:19,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:24:19,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4122 states. [2020-07-21 11:24:19,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4122 to 3580. [2020-07-21 11:24:19,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3580 states. [2020-07-21 11:24:19,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3580 states to 3580 states and 4705 transitions. [2020-07-21 11:24:19,310 INFO L78 Accepts]: Start accepts. Automaton has 3580 states and 4705 transitions. Word has length 148 [2020-07-21 11:24:19,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:24:19,313 INFO L479 AbstractCegarLoop]: Abstraction has 3580 states and 4705 transitions. [2020-07-21 11:24:19,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:24:19,313 INFO L276 IsEmpty]: Start isEmpty. Operand 3580 states and 4705 transitions. [2020-07-21 11:24:19,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-07-21 11:24:19,384 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:24:19,384 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:24:19,595 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:19,596 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:24:19,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:24:19,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1968656565, now seen corresponding path program 1 times [2020-07-21 11:24:19,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:24:19,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [25764556] [2020-07-21 11:24:19,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:19,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:24:19,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:24:19,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:24:19,777 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 11:24:19,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:24:19,884 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 11:24:19,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [25764556] [2020-07-21 11:24:19,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:24:19,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:24:19,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813004773] [2020-07-21 11:24:19,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:24:19,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:24:19,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:24:19,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:24:19,888 INFO L87 Difference]: Start difference. First operand 3580 states and 4705 transitions. Second operand 6 states. [2020-07-21 11:24:20,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:24:20,999 INFO L93 Difference]: Finished difference Result 7462 states and 9817 transitions. [2020-07-21 11:24:20,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:24:21,000 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2020-07-21 11:24:21,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:24:21,034 INFO L225 Difference]: With dead ends: 7462 [2020-07-21 11:24:21,034 INFO L226 Difference]: Without dead ends: 3892 [2020-07-21 11:24:21,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 326 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:24:21,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3892 states. [2020-07-21 11:24:21,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3892 to 2929. [2020-07-21 11:24:21,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2929 states. [2020-07-21 11:24:21,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2929 states to 2929 states and 3765 transitions. [2020-07-21 11:24:21,256 INFO L78 Accepts]: Start accepts. Automaton has 2929 states and 3765 transitions. Word has length 165 [2020-07-21 11:24:21,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:24:21,257 INFO L479 AbstractCegarLoop]: Abstraction has 2929 states and 3765 transitions. [2020-07-21 11:24:21,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:24:21,258 INFO L276 IsEmpty]: Start isEmpty. Operand 2929 states and 3765 transitions. [2020-07-21 11:24:21,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-07-21 11:24:21,269 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:24:21,269 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 11:24:21,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:21,484 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:24:21,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:24:21,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1869238245, now seen corresponding path program 1 times [2020-07-21 11:24:21,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:24:21,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2085054185] [2020-07-21 11:24:21,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:24:21,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:24:21,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:24:21,704 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 57 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 11:24:21,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:24:21,817 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 67 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 11:24:21,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2085054185] [2020-07-21 11:24:21,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:24:21,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-07-21 11:24:21,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100993331] [2020-07-21 11:24:21,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:24:21,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:24:21,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:24:21,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:24:21,820 INFO L87 Difference]: Start difference. First operand 2929 states and 3765 transitions. Second operand 5 states. [2020-07-21 11:24:22,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:24:22,904 INFO L93 Difference]: Finished difference Result 8698 states and 11709 transitions. [2020-07-21 11:24:22,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 11:24:22,905 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 166 [2020-07-21 11:24:22,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:24:22,950 INFO L225 Difference]: With dead ends: 8698 [2020-07-21 11:24:22,950 INFO L226 Difference]: Without dead ends: 5779 [2020-07-21 11:24:23,031 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 326 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:24:23,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5779 states. [2020-07-21 11:24:23,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5779 to 5548. [2020-07-21 11:24:23,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5548 states. [2020-07-21 11:24:23,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5548 states to 5548 states and 7113 transitions. [2020-07-21 11:24:23,246 INFO L78 Accepts]: Start accepts. Automaton has 5548 states and 7113 transitions. Word has length 166 [2020-07-21 11:24:23,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:24:23,247 INFO L479 AbstractCegarLoop]: Abstraction has 5548 states and 7113 transitions. [2020-07-21 11:24:23,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:24:23,248 INFO L276 IsEmpty]: Start isEmpty. Operand 5548 states and 7113 transitions. [2020-07-21 11:24:23,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-07-21 11:24:23,269 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:24:23,270 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2020-07-21 11:24:23,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:23,486 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:24:23,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:24:23,486 INFO L82 PathProgramCache]: Analyzing trace with hash -653449750, now seen corresponding path program 1 times [2020-07-21 11:24:23,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:24:23,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358875451] [2020-07-21 11:24:23,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:24:23,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:24:23,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:24:23,691 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 135 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-07-21 11:24:23,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:24:23,809 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 135 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-07-21 11:24:23,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358875451] [2020-07-21 11:24:23,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:24:23,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:24:23,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405721644] [2020-07-21 11:24:23,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:24:23,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:24:23,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:24:23,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:24:23,812 INFO L87 Difference]: Start difference. First operand 5548 states and 7113 transitions. Second operand 7 states. [2020-07-21 11:24:26,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:24:26,070 INFO L93 Difference]: Finished difference Result 13915 states and 18473 transitions. [2020-07-21 11:24:26,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:24:26,071 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 203 [2020-07-21 11:24:26,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:24:26,156 INFO L225 Difference]: With dead ends: 13915 [2020-07-21 11:24:26,157 INFO L226 Difference]: Without dead ends: 8377 [2020-07-21 11:24:26,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 401 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:24:26,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8377 states. [2020-07-21 11:24:26,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8377 to 7647. [2020-07-21 11:24:26,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7647 states. [2020-07-21 11:24:26,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7647 states to 7647 states and 9589 transitions. [2020-07-21 11:24:26,411 INFO L78 Accepts]: Start accepts. Automaton has 7647 states and 9589 transitions. Word has length 203 [2020-07-21 11:24:26,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:24:26,412 INFO L479 AbstractCegarLoop]: Abstraction has 7647 states and 9589 transitions. [2020-07-21 11:24:26,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:24:26,412 INFO L276 IsEmpty]: Start isEmpty. Operand 7647 states and 9589 transitions. [2020-07-21 11:24:26,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-07-21 11:24:26,435 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:24:26,436 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 11:24:26,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:26,649 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:24:26,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:24:26,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1765594328, now seen corresponding path program 1 times [2020-07-21 11:24:26,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:24:26,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [221042740] [2020-07-21 11:24:26,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:24:26,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:24:26,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:24:26,911 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-07-21 11:24:26,912 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:24:26,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [221042740] [2020-07-21 11:24:26,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:24:26,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:24:26,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010258641] [2020-07-21 11:24:26,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:24:26,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:24:26,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:24:26,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:24:26,915 INFO L87 Difference]: Start difference. First operand 7647 states and 9589 transitions. Second operand 3 states. [2020-07-21 11:24:27,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:24:27,443 INFO L93 Difference]: Finished difference Result 13100 states and 16439 transitions. [2020-07-21 11:24:27,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:24:27,444 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 220 [2020-07-21 11:24:27,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:24:27,445 INFO L225 Difference]: With dead ends: 13100 [2020-07-21 11:24:27,446 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 11:24:27,475 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:24:27,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 11:24:27,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 11:24:27,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 11:24:27,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 11:24:27,476 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 220 [2020-07-21 11:24:27,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:24:27,477 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 11:24:27,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:24:27,477 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 11:24:27,477 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 11:24:27,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:27,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 11:24:28,567 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 327 DAG size of output: 158 [2020-07-21 11:24:29,060 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 327 DAG size of output: 158 [2020-07-21 11:24:30,289 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 197 DAG size of output: 73 [2020-07-21 11:24:30,988 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 36 [2020-07-21 11:24:31,717 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 36 [2020-07-21 11:24:31,721 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:24:31,721 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a8~0 |old(~a8~0)|) (<= ~a16~0 |old(~a16~0)|) (<= ~a20~0 |old(~a20~0)|) (<= |old(~a16~0)| ~a16~0)) [2020-07-21 11:24:31,722 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:24:31,722 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 11:24:31,722 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 11:24:31,722 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,722 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,722 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,722 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,722 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,722 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,722 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 11:24:31,722 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 11:24:31,723 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 11:24:31,723 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 11:24:31,723 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 11:24:31,723 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 11:24:31,723 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 11:24:31,723 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 11:24:31,723 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 11:24:31,723 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 11:24:31,723 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,724 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,724 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,724 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,724 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,725 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,725 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 11:24:31,725 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 11:24:31,725 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 11:24:31,725 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 11:24:31,725 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 11:24:31,726 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 11:24:31,726 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 11:24:31,726 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 11:24:31,726 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 11:24:31,726 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 11:24:31,726 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 11:24:31,726 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 500) no Hoare annotation was computed. [2020-07-21 11:24:31,726 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 11:24:31,726 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 11:24:31,726 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 11:24:31,727 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 11:24:31,727 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,727 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,727 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,727 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,727 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,727 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 11:24:31,727 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 11:24:31,727 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 11:24:31,727 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 11:24:31,727 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 11:24:31,728 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 11:24:31,728 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 11:24:31,728 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 11:24:31,728 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 11:24:31,728 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,728 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,728 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,728 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,728 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,728 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 11:24:31,728 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 11:24:31,729 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 11:24:31,729 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 11:24:31,729 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 11:24:31,729 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 11:24:31,729 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 11:24:31,729 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 11:24:31,729 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 11:24:31,729 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 11:24:31,730 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 11:24:31,730 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 11:24:31,730 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 11:24:31,730 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,730 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,730 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,730 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,730 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,731 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 11:24:31,731 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 11:24:31,731 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 11:24:31,731 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 11:24:31,731 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 11:24:31,731 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 11:24:31,731 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 11:24:31,731 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 11:24:31,731 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 11:24:31,731 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,731 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,732 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,732 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,732 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,732 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,732 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 11:24:31,732 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,732 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 11:24:31,732 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 11:24:31,732 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 11:24:31,732 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 11:24:31,732 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 11:24:31,732 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 11:24:31,733 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 11:24:31,733 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 11:24:31,733 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 11:24:31,733 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 11:24:31,733 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 11:24:31,733 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 11:24:31,733 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 11:24:31,733 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,733 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,733 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,733 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,733 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,733 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 11:24:31,733 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 11:24:31,734 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 11:24:31,734 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 11:24:31,734 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 11:24:31,734 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 11:24:31,734 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 11:24:31,734 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 11:24:31,734 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,735 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,735 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,735 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,735 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,735 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 11:24:31,735 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 11:24:31,735 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 11:24:31,735 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 11:24:31,735 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 11:24:31,735 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 11:24:31,735 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 11:24:31,735 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 11:24:31,735 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 11:24:31,736 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 11:24:31,736 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse11 (<= ~a17~0 0)) (.cse12 (<= ~a21~0 0)) (.cse6 (not (<= |old(~a17~0)| 0))) (.cse13 (not (<= |old(~a21~0)| 0))) (.cse4 (not (<= |old(~a16~0)| 4))) (.cse0 (not (<= 15 |old(~a8~0)|))) (.cse8 (<= ~a8~0 |old(~a8~0)|)) (.cse9 (<= ~a16~0 |old(~a16~0)|)) (.cse7 (<= ~a20~0 |old(~a20~0)|)) (.cse10 (<= |old(~a16~0)| ~a16~0)) (.cse2 (<= ~a7~0 0)) (.cse5 (not (<= |old(~a16~0)| 5))) (.cse1 (not (<= |old(~a7~0)| 0))) (.cse3 (not (<= |old(~a8~0)| 13)))) (and (or .cse0 .cse1 .cse2) (or (and (or .cse3 .cse4) (or (and .cse5 .cse3) .cse6)) (and .cse7 (or (and .cse8 .cse9 (<= ~a8~0 13) .cse10 (<= ~a16~0 4)) (and .cse8 .cse9 .cse10 .cse11)))) (or (and .cse8 .cse7 .cse12 (<= ~a16~0 5) (<= 5 ~a16~0)) .cse13 .cse5 .cse3 (not (<= 5 |old(~a16~0)|))) (or .cse0 .cse11 .cse6) (or .cse12 (and (or .cse13 .cse3 .cse6) (or .cse13 .cse3 .cse4))) (or .cse0 (and .cse8 .cse9 .cse7 .cse10 (<= 15 ~a8~0))) (or (and .cse8 .cse9 .cse7 .cse10 .cse2) (and (or .cse1 .cse5) (or .cse1 .cse3))))) [2020-07-21 11:24:31,736 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 11:24:31,736 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,736 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,736 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,736 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,736 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 11:24:31,736 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,736 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,737 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 11:24:31,737 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 11:24:31,737 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 11:24:31,737 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 11:24:31,737 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 11:24:31,737 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 11:24:31,737 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 11:24:31,737 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 11:24:31,737 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 11:24:31,737 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 11:24:31,737 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 11:24:31,737 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 11:24:31,737 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,737 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,738 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,738 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,738 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,738 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 11:24:31,738 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,738 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 11:24:31,738 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 11:24:31,738 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 11:24:31,738 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 11:24:31,738 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 11:24:31,738 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 11:24:31,738 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 11:24:31,738 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 11:24:31,739 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 11:24:31,739 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 11:24:31,739 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 11:24:31,739 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 11:24:31,739 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 11:24:31,739 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 11:24:31,739 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,739 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,740 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,740 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,740 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,740 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:31,740 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 11:24:31,740 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 11:24:31,740 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 11:24:31,740 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 11:24:31,741 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 11:24:31,741 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 11:24:31,741 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 11:24:31,741 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 11:24:31,741 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 11:24:31,741 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 11:24:31,741 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:24:31,741 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0)) [2020-07-21 11:24:31,742 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:24:31,742 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:24:31,742 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (<= ~a8~0 |old(~a8~0)|) (<= ~a20~0 |old(~a20~0)|) (<= ~a7~0 0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0)) (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (<= 5 |old(~a16~0)|))) [2020-07-21 11:24:31,742 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 11:24:31,742 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 5)) (.cse0 (<= ~a8~0 13)) (.cse2 (<= ~a7~0 0))) (or (and .cse0 (<= ~a16~0 4)) (not (<= 15 |old(~a8~0)|)) (and .cse0 (<= ~a21~0 0) .cse1) (not (<= |old(~a7~0)| 0)) (<= 15 ~a8~0) (and .cse2 .cse1) (not (<= |old(~a16~0)| 5)) (not (<= 5 |old(~a16~0)|)) (and (<= ~a17~0 0) (or .cse0 .cse1)) (and .cse0 .cse2))) [2020-07-21 11:24:31,742 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 11:24:31,743 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 11:24:31,743 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 5)) (.cse0 (<= ~a8~0 13)) (.cse2 (<= ~a7~0 0))) (or (and .cse0 (<= ~a16~0 4)) (not (<= 15 |old(~a8~0)|)) (and .cse0 (<= ~a21~0 0) .cse1) (not (<= |old(~a7~0)| 0)) (<= 15 ~a8~0) (and .cse2 .cse1) (not (<= |old(~a16~0)| 5)) (not (<= 5 |old(~a16~0)|)) (and (<= ~a17~0 0) (or .cse0 .cse1)) (and .cse0 .cse2))) [2020-07-21 11:24:31,743 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 11:24:31,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:24:31 BoogieIcfgContainer [2020-07-21 11:24:31,764 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:24:31,766 INFO L168 Benchmark]: Toolchain (without parser) took 26539.59 ms. Allocated memory was 136.8 MB in the beginning and 606.6 MB in the end (delta: 469.8 MB). Free memory was 99.9 MB in the beginning and 392.0 MB in the end (delta: -292.1 MB). Peak memory consumption was 435.1 MB. Max. memory is 7.1 GB. [2020-07-21 11:24:31,767 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 11:24:31,768 INFO L168 Benchmark]: CACSL2BoogieTranslator took 951.78 ms. Allocated memory was 136.8 MB in the beginning and 205.0 MB in the end (delta: 68.2 MB). Free memory was 99.4 MB in the beginning and 172.7 MB in the end (delta: -73.3 MB). Peak memory consumption was 38.7 MB. Max. memory is 7.1 GB. [2020-07-21 11:24:31,769 INFO L168 Benchmark]: Boogie Preprocessor took 131.03 ms. Allocated memory is still 205.0 MB. Free memory was 172.7 MB in the beginning and 167.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-21 11:24:31,770 INFO L168 Benchmark]: RCFGBuilder took 1685.66 ms. Allocated memory was 205.0 MB in the beginning and 234.9 MB in the end (delta: 29.9 MB). Free memory was 167.6 MB in the beginning and 183.3 MB in the end (delta: -15.6 MB). Peak memory consumption was 87.4 MB. Max. memory is 7.1 GB. [2020-07-21 11:24:31,770 INFO L168 Benchmark]: TraceAbstraction took 23762.70 ms. Allocated memory was 234.9 MB in the beginning and 606.6 MB in the end (delta: 371.7 MB). Free memory was 181.8 MB in the beginning and 392.0 MB in the end (delta: -210.2 MB). Peak memory consumption was 419.0 MB. Max. memory is 7.1 GB. [2020-07-21 11:24:31,774 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 951.78 ms. Allocated memory was 136.8 MB in the beginning and 205.0 MB in the end (delta: 68.2 MB). Free memory was 99.4 MB in the beginning and 172.7 MB in the end (delta: -73.3 MB). Peak memory consumption was 38.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.03 ms. Allocated memory is still 205.0 MB. Free memory was 172.7 MB in the beginning and 167.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1685.66 ms. Allocated memory was 205.0 MB in the beginning and 234.9 MB in the end (delta: 29.9 MB). Free memory was 167.6 MB in the beginning and 183.3 MB in the end (delta: -15.6 MB). Peak memory consumption was 87.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23762.70 ms. Allocated memory was 234.9 MB in the beginning and 606.6 MB in the end (delta: 371.7 MB). Free memory was 181.8 MB in the beginning and 392.0 MB in the end (delta: -210.2 MB). Peak memory consumption was 419.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 500]: 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 && a16 <= 4) || !(15 <= \old(a8))) || ((a8 <= 13 && a21 <= 0) && a16 <= 5)) || !(\old(a7) <= 0)) || 15 <= a8) || (a7 <= 0 && a16 <= 5)) || !(\old(a16) <= 5)) || !(5 <= \old(a16))) || (a17 <= 0 && (a8 <= 13 || a16 <= 5))) || (a8 <= 13 && a7 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.5s, OverallIterations: 10, TraceHistogramMax: 5, AutomataDifference: 13.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 885 SDtfs, 3052 SDslu, 297 SDs, 0 SdLazy, 6459 SolverSat, 1086 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2223 GetRequests, 2178 SyntacticMatches, 6 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7647occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 2977 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 227 PreInvPairs, 339 NumberOfFragments, 392 HoareAnnotationTreeSize, 227 FomulaSimplifications, 41447 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 16672 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1535 NumberOfCodeBlocks, 1535 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 2196 ConstructedInterpolants, 0 QuantifiedInterpolants, 703714 SizeOfPredicates, 16 NumberOfNonLiveVariables, 4459 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 14 InterpolantComputations, 6 PerfectInterpolantSequences, 1016/1042 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...