/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 22:56:27,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 22:56:27,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 22:56:27,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-21 22:56:27,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:56:27,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:56:27,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:56:27,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:56:27,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:56:27,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:56:27,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:56:27,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:56:27,568 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:56:27,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:56:27,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:56:27,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:56:27,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 22:56:27,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 22:56:27,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 22:56:27,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 22:56:27,590 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 22:56:27,624 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:56:27,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:56:27,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:56:27,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:56:27,629 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:56:27,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:56:27,630 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:56:27,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:56:27,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:56:27,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:56:27,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:56:27,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:56:27,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:56:27,631 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:56:27,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:56:27,634 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:56:27,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:56:27,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:56:27,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:56:27,634 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:56:27,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:56:27,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:56:27,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:56:27,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:56:27,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:56:27,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:56:27,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:27,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:56:27,638 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:56:27,639 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 22:56:27,952 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:56:27,974 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:56:27,978 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:56:27,981 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:56:27,981 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:56:27,983 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label41.c [2020-07-21 22:56:28,064 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69ed36d76/707de592b34d4327aa99dbdccfaee542/FLAGbe9caa556 [2020-07-21 22:56:28,626 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:56:28,627 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label41.c [2020-07-21 22:56:28,638 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69ed36d76/707de592b34d4327aa99dbdccfaee542/FLAGbe9caa556 [2020-07-21 22:56:28,906 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69ed36d76/707de592b34d4327aa99dbdccfaee542 [2020-07-21 22:56:28,915 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:56:28,918 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:56:28,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:56:28,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:56:28,923 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:56:28,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:56:28" (1/1) ... [2020-07-21 22:56:28,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5877701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:28, skipping insertion in model container [2020-07-21 22:56:28,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:56:28" (1/1) ... [2020-07-21 22:56:28,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:56:29,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:56:29,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:56:29,483 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:56:29,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:56:29,782 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:56:29,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:29 WrapperNode [2020-07-21 22:56:29,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:56:29,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:56:29,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:56:29,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:56:29,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:29" (1/1) ... [2020-07-21 22:56:29,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:29" (1/1) ... [2020-07-21 22:56:29,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:29" (1/1) ... [2020-07-21 22:56:29,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:29" (1/1) ... [2020-07-21 22:56:29,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:29" (1/1) ... [2020-07-21 22:56:29,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:29" (1/1) ... [2020-07-21 22:56:29,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:29" (1/1) ... [2020-07-21 22:56:29,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:56:29,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:56:29,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:56:29,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:56:29,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:29" (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 22:56:30,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:56:30,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:56:30,007 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 22:56:30,007 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:56:30,008 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 22:56:30,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:56:30,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 22:56:30,010 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 22:56:30,010 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:56:30,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:56:30,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:56:31,285 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:56:31,285 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 22:56:31,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:56:31 BoogieIcfgContainer [2020-07-21 22:56:31,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:56:31,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:56:31,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:56:31,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:56:31,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:56:28" (1/3) ... [2020-07-21 22:56:31,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af02d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:56:31, skipping insertion in model container [2020-07-21 22:56:31,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:29" (2/3) ... [2020-07-21 22:56:31,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af02d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:56:31, skipping insertion in model container [2020-07-21 22:56:31,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:56:31" (3/3) ... [2020-07-21 22:56:31,300 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label41.c [2020-07-21 22:56:31,311 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:56:31,319 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:56:31,335 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:56:31,361 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:56:31,361 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:56:31,361 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:56:31,362 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:56:31,362 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:56:31,362 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:56:31,362 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:56:31,362 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:56:31,385 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 22:56:31,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-07-21 22:56:31,397 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:31,398 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] [2020-07-21 22:56:31,399 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:31,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:31,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1961179338, now seen corresponding path program 1 times [2020-07-21 22:56:31,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:31,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1057590353] [2020-07-21 22:56:31,416 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:31,586 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:56:31,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:31,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 22:56:31,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:32,114 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:56:32,119 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 22:56:32,119 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 22:56:32,203 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 22:56:32,203 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:56:32,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1057590353] [2020-07-21 22:56:32,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:56:32,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 22:56:32,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852583347] [2020-07-21 22:56:32,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 22:56:32,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:32,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 22:56:32,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-21 22:56:32,239 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 10 states. [2020-07-21 22:56:33,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:33,523 INFO L93 Difference]: Finished difference Result 527 states and 878 transitions. [2020-07-21 22:56:33,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:56:33,526 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 96 [2020-07-21 22:56:33,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:33,547 INFO L225 Difference]: With dead ends: 527 [2020-07-21 22:56:33,547 INFO L226 Difference]: Without dead ends: 229 [2020-07-21 22:56:33,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-07-21 22:56:33,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-21 22:56:33,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-07-21 22:56:33,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 22:56:33,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2020-07-21 22:56:33,662 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 96 [2020-07-21 22:56:33,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:33,663 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2020-07-21 22:56:33,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 22:56:33,664 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2020-07-21 22:56:33,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-07-21 22:56:33,676 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:33,676 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:33,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:33,890 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:33,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:33,891 INFO L82 PathProgramCache]: Analyzing trace with hash -263747545, now seen corresponding path program 1 times [2020-07-21 22:56:33,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:33,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [184244865] [2020-07-21 22:56:33,892 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:34,008 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:56:34,008 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:34,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 22:56:34,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:34,496 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:34,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:56:35,008 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 22:56:35,012 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:56:35,013 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 22:56:35,014 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 22:56:35,016 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:35,044 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 22:56:35,045 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 22:56:35,086 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:35,167 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:35,290 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:35,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [184244865] [2020-07-21 22:56:35,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:56:35,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 22:56:35,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064140961] [2020-07-21 22:56:35,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 22:56:35,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:35,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 22:56:35,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 22:56:35,297 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 21 states. [2020-07-21 22:56:36,325 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 22:56:37,430 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 22:56:38,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:38,963 INFO L93 Difference]: Finished difference Result 738 states and 1083 transitions. [2020-07-21 22:56:38,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 22:56:38,964 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 105 [2020-07-21 22:56:38,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:38,973 INFO L225 Difference]: With dead ends: 738 [2020-07-21 22:56:38,973 INFO L226 Difference]: Without dead ends: 423 [2020-07-21 22:56:38,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 187 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=516, Invalid=1290, Unknown=0, NotChecked=0, Total=1806 [2020-07-21 22:56:38,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-07-21 22:56:39,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 393. [2020-07-21 22:56:39,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-21 22:56:39,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 533 transitions. [2020-07-21 22:56:39,051 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 533 transitions. Word has length 105 [2020-07-21 22:56:39,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:39,051 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 533 transitions. [2020-07-21 22:56:39,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 22:56:39,052 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 533 transitions. [2020-07-21 22:56:39,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-07-21 22:56:39,054 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:39,054 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 22:56:39,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:39,269 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:39,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:39,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1995325114, now seen corresponding path program 1 times [2020-07-21 22:56:39,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:39,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1946063263] [2020-07-21 22:56:39,272 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:39,353 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 22:56:39,353 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:39,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 22:56:39,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:39,381 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 22:56:39,381 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:56:39,408 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:56:39,422 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:39,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:56:39,515 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:56:39,516 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:39,541 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:56:39,607 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:39,612 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:39,627 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:39,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1946063263] [2020-07-21 22:56:39,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:56:39,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:56:39,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960778780] [2020-07-21 22:56:39,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:56:39,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:39,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:56:39,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:56:39,630 INFO L87 Difference]: Start difference. First operand 393 states and 533 transitions. Second operand 7 states. [2020-07-21 22:56:41,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:41,387 INFO L93 Difference]: Finished difference Result 1434 states and 2028 transitions. [2020-07-21 22:56:41,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-21 22:56:41,388 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 117 [2020-07-21 22:56:41,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:41,402 INFO L225 Difference]: With dead ends: 1434 [2020-07-21 22:56:41,402 INFO L226 Difference]: Without dead ends: 1047 [2020-07-21 22:56:41,404 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 233 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-07-21 22:56:41,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-07-21 22:56:41,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1015. [2020-07-21 22:56:41,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2020-07-21 22:56:41,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1271 transitions. [2020-07-21 22:56:41,466 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1271 transitions. Word has length 117 [2020-07-21 22:56:41,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:41,467 INFO L479 AbstractCegarLoop]: Abstraction has 1015 states and 1271 transitions. [2020-07-21 22:56:41,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:56:41,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1271 transitions. [2020-07-21 22:56:41,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-07-21 22:56:41,473 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:41,473 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:56:41,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:41,687 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:41,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:41,688 INFO L82 PathProgramCache]: Analyzing trace with hash -417301807, now seen corresponding path program 1 times [2020-07-21 22:56:41,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:41,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [629560944] [2020-07-21 22:56:41,690 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:41,796 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:56:41,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:41,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:56:41,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:41,839 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 22:56:41,840 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:56:41,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [629560944] [2020-07-21 22:56:41,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:56:41,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:56:41,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91416930] [2020-07-21 22:56:41,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:56:41,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:41,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:56:41,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:56:41,845 INFO L87 Difference]: Start difference. First operand 1015 states and 1271 transitions. Second operand 3 states. [2020-07-21 22:56:42,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:42,486 INFO L93 Difference]: Finished difference Result 2320 states and 3002 transitions. [2020-07-21 22:56:42,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:56:42,490 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2020-07-21 22:56:42,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:42,504 INFO L225 Difference]: With dead ends: 2320 [2020-07-21 22:56:42,505 INFO L226 Difference]: Without dead ends: 1311 [2020-07-21 22:56:42,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 136 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 22:56:42,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2020-07-21 22:56:42,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1307. [2020-07-21 22:56:42,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1307 states. [2020-07-21 22:56:42,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1677 transitions. [2020-07-21 22:56:42,567 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1677 transitions. Word has length 138 [2020-07-21 22:56:42,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:42,568 INFO L479 AbstractCegarLoop]: Abstraction has 1307 states and 1677 transitions. [2020-07-21 22:56:42,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:56:42,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1677 transitions. [2020-07-21 22:56:42,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-21 22:56:42,577 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:42,577 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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] [2020-07-21 22:56:42,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:42,791 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:42,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:42,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1299707378, now seen corresponding path program 1 times [2020-07-21 22:56:42,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:42,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [617141278] [2020-07-21 22:56:42,794 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:42,882 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:56:42,883 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:42,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:56:42,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:42,922 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 22:56:42,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:56:43,002 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 22:56:43,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [617141278] [2020-07-21 22:56:43,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:56:43,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 22:56:43,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709610990] [2020-07-21 22:56:43,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 22:56:43,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:43,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 22:56:43,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 22:56:43,016 INFO L87 Difference]: Start difference. First operand 1307 states and 1677 transitions. Second operand 8 states. [2020-07-21 22:56:43,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:43,984 INFO L93 Difference]: Finished difference Result 3180 states and 4224 transitions. [2020-07-21 22:56:43,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:56:43,985 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 141 [2020-07-21 22:56:43,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:43,994 INFO L225 Difference]: With dead ends: 3180 [2020-07-21 22:56:43,994 INFO L226 Difference]: Without dead ends: 1278 [2020-07-21 22:56:43,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 22:56:44,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2020-07-21 22:56:44,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 1278. [2020-07-21 22:56:44,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1278 states. [2020-07-21 22:56:44,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1566 transitions. [2020-07-21 22:56:44,045 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1566 transitions. Word has length 141 [2020-07-21 22:56:44,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:44,046 INFO L479 AbstractCegarLoop]: Abstraction has 1278 states and 1566 transitions. [2020-07-21 22:56:44,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 22:56:44,046 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1566 transitions. [2020-07-21 22:56:44,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-07-21 22:56:44,057 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:44,058 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:56:44,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:44,271 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:44,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:44,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1958573417, now seen corresponding path program 1 times [2020-07-21 22:56:44,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:44,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [130726724] [2020-07-21 22:56:44,273 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:44,356 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:56:44,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:44,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:56:44,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:44,393 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:44,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:56:44,451 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:44,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [130726724] [2020-07-21 22:56:44,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:56:44,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:56:44,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086675591] [2020-07-21 22:56:44,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:56:44,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:44,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:56:44,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:56:44,453 INFO L87 Difference]: Start difference. First operand 1278 states and 1566 transitions. Second operand 7 states. [2020-07-21 22:56:45,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:45,232 INFO L93 Difference]: Finished difference Result 3139 states and 4082 transitions. [2020-07-21 22:56:45,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:56:45,235 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 147 [2020-07-21 22:56:45,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:45,246 INFO L225 Difference]: With dead ends: 3139 [2020-07-21 22:56:45,246 INFO L226 Difference]: Without dead ends: 1921 [2020-07-21 22:56:45,250 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:56:45,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1921 states. [2020-07-21 22:56:45,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1921 to 1879. [2020-07-21 22:56:45,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1879 states. [2020-07-21 22:56:45,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1879 states to 1879 states and 2254 transitions. [2020-07-21 22:56:45,304 INFO L78 Accepts]: Start accepts. Automaton has 1879 states and 2254 transitions. Word has length 147 [2020-07-21 22:56:45,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:45,305 INFO L479 AbstractCegarLoop]: Abstraction has 1879 states and 2254 transitions. [2020-07-21 22:56:45,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:56:45,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1879 states and 2254 transitions. [2020-07-21 22:56:45,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-07-21 22:56:45,309 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:45,310 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:56:45,524 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:45,525 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:45,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:45,526 INFO L82 PathProgramCache]: Analyzing trace with hash -566774654, now seen corresponding path program 1 times [2020-07-21 22:56:45,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:45,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1924479272] [2020-07-21 22:56:45,527 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:45,617 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:56:45,617 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:45,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:56:45,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:45,654 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:45,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:56:45,736 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:45,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1924479272] [2020-07-21 22:56:45,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:56:45,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:56:45,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041057225] [2020-07-21 22:56:45,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:56:45,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:45,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:56:45,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:56:45,739 INFO L87 Difference]: Start difference. First operand 1879 states and 2254 transitions. Second operand 7 states. [2020-07-21 22:56:47,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:47,015 INFO L93 Difference]: Finished difference Result 4145 states and 5024 transitions. [2020-07-21 22:56:47,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 22:56:47,016 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 158 [2020-07-21 22:56:47,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:47,028 INFO L225 Difference]: With dead ends: 4145 [2020-07-21 22:56:47,028 INFO L226 Difference]: Without dead ends: 2326 [2020-07-21 22:56:47,033 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 311 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 22:56:47,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2326 states. [2020-07-21 22:56:47,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2326 to 2312. [2020-07-21 22:56:47,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2312 states. [2020-07-21 22:56:47,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2312 states to 2312 states and 2568 transitions. [2020-07-21 22:56:47,102 INFO L78 Accepts]: Start accepts. Automaton has 2312 states and 2568 transitions. Word has length 158 [2020-07-21 22:56:47,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:47,102 INFO L479 AbstractCegarLoop]: Abstraction has 2312 states and 2568 transitions. [2020-07-21 22:56:47,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:56:47,103 INFO L276 IsEmpty]: Start isEmpty. Operand 2312 states and 2568 transitions. [2020-07-21 22:56:47,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-07-21 22:56:47,108 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:47,109 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:47,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:47,323 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:47,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:47,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1660611423, now seen corresponding path program 1 times [2020-07-21 22:56:47,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:47,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [739945922] [2020-07-21 22:56:47,324 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 22:56:47,441 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:56:47,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:47,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:56:47,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:47,497 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 22:56:47,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:56:47,595 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 22:56:47,595 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [739945922] [2020-07-21 22:56:47,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:56:47,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:56:47,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193859728] [2020-07-21 22:56:47,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:56:47,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:47,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:56:47,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:56:47,598 INFO L87 Difference]: Start difference. First operand 2312 states and 2568 transitions. Second operand 7 states. [2020-07-21 22:56:48,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:48,692 INFO L93 Difference]: Finished difference Result 5182 states and 5761 transitions. [2020-07-21 22:56:48,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:56:48,693 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 215 [2020-07-21 22:56:48,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:48,705 INFO L225 Difference]: With dead ends: 5182 [2020-07-21 22:56:48,706 INFO L226 Difference]: Without dead ends: 2930 [2020-07-21 22:56:48,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 426 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:56:48,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2020-07-21 22:56:48,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 2921. [2020-07-21 22:56:48,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2921 states. [2020-07-21 22:56:48,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2921 states to 2921 states and 3162 transitions. [2020-07-21 22:56:48,780 INFO L78 Accepts]: Start accepts. Automaton has 2921 states and 3162 transitions. Word has length 215 [2020-07-21 22:56:48,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:48,781 INFO L479 AbstractCegarLoop]: Abstraction has 2921 states and 3162 transitions. [2020-07-21 22:56:48,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:56:48,781 INFO L276 IsEmpty]: Start isEmpty. Operand 2921 states and 3162 transitions. [2020-07-21 22:56:48,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-07-21 22:56:48,788 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:48,788 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:49,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:49,002 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:49,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:49,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1504178570, now seen corresponding path program 1 times [2020-07-21 22:56:49,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:49,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1160045807] [2020-07-21 22:56:49,003 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 22:56:49,102 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:56:49,102 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:49,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:56:49,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:49,158 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 131 proven. 2 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-07-21 22:56:49,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:56:49,248 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 156 proven. 16 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-21 22:56:49,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1160045807] [2020-07-21 22:56:49,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:56:49,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:56:49,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47277590] [2020-07-21 22:56:49,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:56:49,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:49,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:56:49,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:56:49,251 INFO L87 Difference]: Start difference. First operand 2921 states and 3162 transitions. Second operand 7 states. [2020-07-21 22:56:50,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:50,206 INFO L93 Difference]: Finished difference Result 3659 states and 3984 transitions. [2020-07-21 22:56:50,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 22:56:50,211 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 231 [2020-07-21 22:56:50,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:50,217 INFO L225 Difference]: With dead ends: 3659 [2020-07-21 22:56:50,218 INFO L226 Difference]: Without dead ends: 1536 [2020-07-21 22:56:50,222 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 458 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:56:50,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2020-07-21 22:56:50,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1392. [2020-07-21 22:56:50,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1392 states. [2020-07-21 22:56:50,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1473 transitions. [2020-07-21 22:56:50,257 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1473 transitions. Word has length 231 [2020-07-21 22:56:50,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:50,257 INFO L479 AbstractCegarLoop]: Abstraction has 1392 states and 1473 transitions. [2020-07-21 22:56:50,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:56:50,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1473 transitions. [2020-07-21 22:56:50,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-07-21 22:56:50,263 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:50,264 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 22:56:50,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:50,478 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:50,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:50,478 INFO L82 PathProgramCache]: Analyzing trace with hash -784030955, now seen corresponding path program 1 times [2020-07-21 22:56:50,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:50,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1693822062] [2020-07-21 22:56:50,481 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 22:56:50,649 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:56:50,650 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:50,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:56:50,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:50,715 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-07-21 22:56:50,715 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:56:50,715 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1693822062] [2020-07-21 22:56:50,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:56:50,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:56:50,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526530202] [2020-07-21 22:56:50,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:56:50,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:50,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:56:50,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:56:50,718 INFO L87 Difference]: Start difference. First operand 1392 states and 1473 transitions. Second operand 3 states. [2020-07-21 22:56:51,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:51,164 INFO L93 Difference]: Finished difference Result 2867 states and 3056 transitions. [2020-07-21 22:56:51,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:56:51,170 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 238 [2020-07-21 22:56:51,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:51,173 INFO L225 Difference]: With dead ends: 2867 [2020-07-21 22:56:51,173 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 22:56:51,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 236 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 22:56:51,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 22:56:51,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 22:56:51,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 22:56:51,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 22:56:51,179 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 238 [2020-07-21 22:56:51,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:51,180 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 22:56:51,180 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:56:51,180 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 22:56:51,180 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 22:56:51,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:51,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 22:56:51,799 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 92 [2020-07-21 22:56:53,020 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 149 DAG size of output: 96 [2020-07-21 22:56:53,640 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 53 [2020-07-21 22:56:54,300 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 64 [2020-07-21 22:56:54,305 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:56:54,305 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 22:56:54,305 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:56:54,305 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,305 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,306 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,306 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,306 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,306 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 22:56:54,306 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 22:56:54,306 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 22:56:54,307 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 22:56:54,307 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 22:56:54,307 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 22:56:54,307 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 22:56:54,307 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 22:56:54,307 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 22:56:54,307 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 22:56:54,307 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 22:56:54,308 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 22:56:54,308 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 22:56:54,308 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,308 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,308 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,308 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,308 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 22:56:54,308 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,308 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 22:56:54,308 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 22:56:54,308 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 22:56:54,308 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 22:56:54,308 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 22:56:54,309 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 22:56:54,309 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 22:56:54,309 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 22:56:54,309 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 22:56:54,309 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 22:56:54,309 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 22:56:54,309 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 22:56:54,309 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 22:56:54,309 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 22:56:54,310 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 22:56:54,310 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,310 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,310 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,310 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,310 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,310 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 442) no Hoare annotation was computed. [2020-07-21 22:56:54,310 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 22:56:54,311 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 22:56:54,311 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 22:56:54,311 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 22:56:54,311 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 22:56:54,311 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 22:56:54,311 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 22:56:54,311 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 22:56:54,311 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 22:56:54,311 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 22:56:54,312 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 22:56:54,312 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,312 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,312 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,312 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,312 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,312 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 22:56:54,312 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 22:56:54,312 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 22:56:54,313 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 22:56:54,313 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 22:56:54,313 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 22:56:54,313 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 22:56:54,313 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 22:56:54,313 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 22:56:54,313 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 22:56:54,313 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 22:56:54,313 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 22:56:54,313 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 22:56:54,313 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,313 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,314 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,314 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,314 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,314 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 22:56:54,314 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 22:56:54,314 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 22:56:54,314 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 22:56:54,314 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 22:56:54,314 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 22:56:54,315 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 22:56:54,315 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 22:56:54,315 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 22:56:54,315 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 22:56:54,315 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 22:56:54,315 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 22:56:54,315 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 22:56:54,315 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 22:56:54,315 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 22:56:54,315 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 22:56:54,315 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,315 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,315 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,316 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,316 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 22:56:54,316 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,316 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 22:56:54,316 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,316 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 22:56:54,316 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 22:56:54,316 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 22:56:54,316 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,316 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,316 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 22:56:54,316 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 22:56:54,317 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 22:56:54,317 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 22:56:54,317 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 22:56:54,317 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 22:56:54,317 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 22:56:54,317 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 22:56:54,317 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 22:56:54,317 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 22:56:54,318 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 22:56:54,318 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,318 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,318 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,318 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,318 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,318 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,318 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 22:56:54,319 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 22:56:54,319 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 22:56:54,319 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 22:56:54,319 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 22:56:54,319 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 22:56:54,319 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 22:56:54,319 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 22:56:54,319 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 22:56:54,320 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 22:56:54,320 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 22:56:54,320 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,320 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,320 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,320 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,320 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,320 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,321 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 22:56:54,321 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 22:56:54,321 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 22:56:54,321 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 22:56:54,321 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 22:56:54,321 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 22:56:54,321 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 22:56:54,321 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 22:56:54,321 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 22:56:54,322 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 22:56:54,322 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 22:56:54,322 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 22:56:54,322 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 22:56:54,322 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 22:56:54,322 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,322 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,322 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,323 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse1 (= ~a25~0 |old(~a25~0)|)) (.cse23 (= ~a11~0 |old(~a11~0)|)) (.cse10 (<= ~a28~0 |old(~a28~0)|)) (.cse12 (= ~a19~0 |old(~a19~0)|)) (.cse13 (< ~a17~0 9)) (.cse0 (<= |old(~a28~0)| ~a28~0)) (.cse14 (= 1 ~a25~0))) (let ((.cse4 (not (= 8 |old(~a17~0)|))) (.cse7 (and (not (= 6 |calculate_output_#in~input|)) (not (= 1 |calculate_output_#in~input|)) (not (= 4 |calculate_output_#in~input|)) (not (= 5 |calculate_output_#in~input|)) (not (= 3 |calculate_output_#in~input|)))) (.cse6 (= 8 ~a17~0)) (.cse11 (= 1 ~a11~0)) (.cse17 (not (< 8 |old(~a28~0)|))) (.cse19 (not (= 1 |old(~a11~0)|))) (.cse5 (<= ~a11~0 |old(~a11~0)|)) (.cse2 (not (<= |old(~a17~0)| 7))) (.cse3 (not (= 1 |old(~a19~0)|))) (.cse22 (and .cse23 .cse10 .cse12 .cse13 .cse0 .cse14)) (.cse15 (not (= 1 |old(~a25~0)|))) (.cse18 (not (< |old(~a28~0)| 11))) (.cse21 (not (<= |old(~a28~0)| 9))) (.cse16 (not (< |old(~a17~0)| 9))) (.cse20 (and .cse10 .cse23 .cse12 .cse13 .cse0 .cse1)) (.cse8 (not (= 1 ~a21~0))) (.cse9 (not (<= |old(~a11~0)| 0)))) (and (or (and (<= ~a17~0 |old(~a17~0)|) .cse0 .cse1) .cse2) (or .cse3 (not (= 10 |old(~a28~0)|)) .cse4 (and (= 1 ~a19~0) .cse5 (= 10 ~a28~0) .cse6) .cse7 .cse8 .cse9) (or .cse3 (and .cse10 .cse11 .cse12 .cse13 .cse0 .cse14) .cse15 .cse16 .cse17 .cse18 .cse19) (or .cse3 .cse4 (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) .cse7 .cse8 .cse6 .cse9) (or (not (<= |old(~a28~0)| 7)) .cse16 .cse20 .cse19) (or .cse3 .cse21 .cse16 (and .cse11 (<= ~a28~0 9) .cse12 .cse13 .cse0 .cse1) .cse17 .cse19) (or .cse5 .cse2 .cse8 .cse9) (or .cse3 .cse22 .cse15 .cse16 .cse8 .cse9) (or .cse22 .cse15 .cse16 .cse8 .cse9 .cse18) (or .cse21 .cse16 .cse20 .cse8 .cse9)))) [2020-07-21 22:56:54,323 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,323 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,323 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,323 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 22:56:54,323 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 22:56:54,324 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 22:56:54,324 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 22:56:54,324 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 22:56:54,324 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 22:56:54,324 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 22:56:54,324 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 22:56:54,324 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 22:56:54,324 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 22:56:54,324 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 22:56:54,325 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 22:56:54,325 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 22:56:54,325 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,325 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,325 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,325 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,325 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,325 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,326 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 22:56:54,326 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 22:56:54,326 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 22:56:54,326 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 22:56:54,326 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 22:56:54,326 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 22:56:54,326 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 22:56:54,326 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 22:56:54,326 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 22:56:54,326 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 22:56:54,327 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 22:56:54,327 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 22:56:54,327 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 22:56:54,327 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 22:56:54,327 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 22:56:54,327 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 22:56:54,327 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,327 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,328 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,328 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,328 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,328 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 22:56:54,328 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 22:56:54,328 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 22:56:54,328 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 22:56:54,328 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 22:56:54,328 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 22:56:54,328 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 22:56:54,329 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 22:56:54,329 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 22:56:54,329 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 22:56:54,329 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 22:56:54,329 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 22:56:54,329 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 22:56:54,329 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 22:56:54,329 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 22:56:54,329 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 22:56:54,330 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 22:56:54,330 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 22:56:54,330 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 22:56:54,330 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:56:54,330 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a25~0 0) (= 7 ~a28~0) (= 1 ~a21~0) (= 8 ~a17~0)) [2020-07-21 22:56:54,330 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 22:56:54,330 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:56:54,331 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) (and (= ~a11~0 |old(~a11~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= 8 ~a17~0) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0))) [2020-07-21 22:56:54,331 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse4 (<= ~a28~0 9)) (.cse7 (<= 9 ~a28~0)) (.cse0 (= 1 ~a19~0)) (.cse5 (= 1 ~a11~0)) (.cse1 (= ~a11~0 |old(~a11~0)|)) (.cse6 (< ~a28~0 11)) (.cse2 (< ~a17~0 9)) (.cse3 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3) (not (= 7 |old(~a28~0)|)) (and .cse1 .cse4 .cse2) (and .cse0 .cse5 .cse6 .cse2 .cse7 .cse3) (and .cse0 .cse5 .cse4 .cse2 .cse7) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse0 (<= ~a11~0 0) (= 10 ~a28~0) (= 8 ~a17~0)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (<= ~a17~0 7) (and .cse5 .cse2 (<= ~a28~0 7)) (and .cse1 .cse6 .cse2 .cse3))) [2020-07-21 22:56:54,331 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 22:56:54,331 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 22:56:54,331 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse4 (<= ~a28~0 9)) (.cse7 (<= 9 ~a28~0)) (.cse0 (= 1 ~a19~0)) (.cse5 (= 1 ~a11~0)) (.cse1 (= ~a11~0 |old(~a11~0)|)) (.cse6 (< ~a28~0 11)) (.cse2 (< ~a17~0 9)) (.cse3 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3) (not (= 7 |old(~a28~0)|)) (and .cse1 .cse4 .cse2) (and .cse0 .cse5 .cse6 .cse2 .cse7 .cse3) (and .cse0 .cse5 .cse4 .cse2 .cse7) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse0 (<= ~a11~0 0) (= 10 ~a28~0) (= 8 ~a17~0) (or (= 1 main_~input~0) (= 6 main_~input~0) (= 4 main_~input~0) (= 5 main_~input~0) (= 3 main_~input~0))) (<= ~a17~0 7) (and .cse5 .cse2 (<= ~a28~0 7)) (and .cse1 .cse6 .cse2 .cse3))) [2020-07-21 22:56:54,331 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 22:56:54,332 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 22:56:54,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:56:54 BoogieIcfgContainer [2020-07-21 22:56:54,352 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 22:56:54,354 INFO L168 Benchmark]: Toolchain (without parser) took 25437.68 ms. Allocated memory was 146.8 MB in the beginning and 508.0 MB in the end (delta: 361.2 MB). Free memory was 101.6 MB in the beginning and 429.5 MB in the end (delta: -328.0 MB). Peak memory consumption was 377.9 MB. Max. memory is 7.1 GB. [2020-07-21 22:56:54,355 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 146.8 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 22:56:54,356 INFO L168 Benchmark]: CACSL2BoogieTranslator took 864.11 ms. Allocated memory was 146.8 MB in the beginning and 206.0 MB in the end (delta: 59.2 MB). Free memory was 101.2 MB in the beginning and 173.6 MB in the end (delta: -72.4 MB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB. [2020-07-21 22:56:54,357 INFO L168 Benchmark]: Boogie Preprocessor took 104.43 ms. Allocated memory is still 206.0 MB. Free memory was 173.6 MB in the beginning and 168.3 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. [2020-07-21 22:56:54,358 INFO L168 Benchmark]: RCFGBuilder took 1403.26 ms. Allocated memory was 206.0 MB in the beginning and 236.5 MB in the end (delta: 30.4 MB). Free memory was 168.3 MB in the beginning and 178.2 MB in the end (delta: -9.9 MB). Peak memory consumption was 80.2 MB. Max. memory is 7.1 GB. [2020-07-21 22:56:54,358 INFO L168 Benchmark]: TraceAbstraction took 23059.48 ms. Allocated memory was 236.5 MB in the beginning and 508.0 MB in the end (delta: 271.6 MB). Free memory was 178.2 MB in the beginning and 429.5 MB in the end (delta: -251.4 MB). Peak memory consumption was 364.9 MB. Max. memory is 7.1 GB. [2020-07-21 22:56:54,362 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 146.8 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 864.11 ms. Allocated memory was 146.8 MB in the beginning and 206.0 MB in the end (delta: 59.2 MB). Free memory was 101.2 MB in the beginning and 173.6 MB in the end (delta: -72.4 MB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.43 ms. Allocated memory is still 206.0 MB. Free memory was 173.6 MB in the beginning and 168.3 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1403.26 ms. Allocated memory was 206.0 MB in the beginning and 236.5 MB in the end (delta: 30.4 MB). Free memory was 168.3 MB in the beginning and 178.2 MB in the end (delta: -9.9 MB). Peak memory consumption was 80.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23059.48 ms. Allocated memory was 236.5 MB in the beginning and 508.0 MB in the end (delta: 271.6 MB). Free memory was 178.2 MB in the beginning and 429.5 MB in the end (delta: -251.4 MB). Peak memory consumption was 364.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 442]: 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: 606]: Loop Invariant Derived loop invariant: ((((((((((((!(1 == \old(a19)) || (((1 == a19 && a11 == \old(a11)) && a17 < 9) && 1 == a25)) || !(7 == \old(a28))) || ((a11 == \old(a11) && a28 <= 9) && a17 < 9)) || (((((1 == a19 && 1 == a11) && a28 < 11) && a17 < 9) && 9 <= a28) && 1 == a25)) || ((((1 == a19 && 1 == a11) && a28 <= 9) && a17 < 9) && 9 <= a28)) || !(1 == a21)) || !(\old(a11) <= 0)) || (((1 == a19 && a11 <= 0) && 10 == a28) && 8 == a17)) || !(8 == \old(a17))) || !(\old(a25) <= 0)) || a17 <= 7) || ((1 == a11 && a17 < 9) && a28 <= 7)) || (((a11 == \old(a11) && a28 < 11) && a17 < 9) && 1 == a25) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 20.0s, OverallIterations: 10, TraceHistogramMax: 5, AutomataDifference: 13.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 860 SDtfs, 5126 SDslu, 803 SDs, 0 SdLazy, 9347 SolverSat, 1250 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2752 GetRequests, 2640 SyntacticMatches, 5 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2921occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 275 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 104 PreInvPairs, 152 NumberOfFragments, 711 HoareAnnotationTreeSize, 104 FomulaSimplifications, 1850 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3639 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1586 NumberOfCodeBlocks, 1063 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2683 ConstructedInterpolants, 0 QuantifiedInterpolants, 1537214 SizeOfPredicates, 38 NumberOfNonLiveVariables, 3541 ConjunctsInSsa, 136 ConjunctsInUnsatCore, 17 InterpolantComputations, 3 PerfectInterpolantSequences, 1446/1490 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...