/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_label57.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:26:20,270 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 01:26:20,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:26:20,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:26:20,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:26:20,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:26:20,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:26:20,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:26:20,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:26:20,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:26:20,325 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:26:20,326 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:26:20,327 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:26:20,328 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:26:20,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 01:26:20,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:26:20,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:26:20,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:26:20,340 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 01:26:20,354 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:26:20,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:26:20,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:26:20,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:26:20,356 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:26:20,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:26:20,356 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:26:20,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:26:20,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:26:20,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:26:20,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:26:20,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:26:20,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:26:20,357 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:26:20,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:26:20,358 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:26:20,358 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:26:20,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:26:20,358 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:26:20,359 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:26:20,359 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:26:20,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:26:20,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:26:20,359 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:26:20,359 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:26:20,360 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:26:20,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:20,360 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:26:20,360 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:26:20,360 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 01:26:20,634 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:26:20,647 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:26:20,650 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:26:20,652 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:26:20,652 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:26:20,653 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label57.c [2020-07-21 01:26:20,717 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed10ad46c/786c90d1860741a7890e7bb82d2122d2/FLAG148bc0e6f [2020-07-21 01:26:21,229 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:26:21,230 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label57.c [2020-07-21 01:26:21,245 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed10ad46c/786c90d1860741a7890e7bb82d2122d2/FLAG148bc0e6f [2020-07-21 01:26:21,562 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed10ad46c/786c90d1860741a7890e7bb82d2122d2 [2020-07-21 01:26:21,573 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:26:21,577 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:26:21,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:26:21,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:26:21,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:26:21,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:26:21" (1/1) ... [2020-07-21 01:26:21,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ab40a35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:21, skipping insertion in model container [2020-07-21 01:26:21,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:26:21" (1/1) ... [2020-07-21 01:26:21,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:26:21,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:26:22,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:26:22,181 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:26:22,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:26:22,349 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:26:22,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:22 WrapperNode [2020-07-21 01:26:22,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:26:22,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:26:22,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:26:22,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:26:22,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:22" (1/1) ... [2020-07-21 01:26:22,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:22" (1/1) ... [2020-07-21 01:26:22,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:22" (1/1) ... [2020-07-21 01:26:22,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:22" (1/1) ... [2020-07-21 01:26:22,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:22" (1/1) ... [2020-07-21 01:26:22,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:22" (1/1) ... [2020-07-21 01:26:22,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:22" (1/1) ... [2020-07-21 01:26:22,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:26:22,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:26:22,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:26:22,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:26:22,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:22" (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 01:26:22,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:26:22,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:26:22,523 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:26:22,523 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:26:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:26:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:26:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:26:22,524 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:26:22,524 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:26:22,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:26:22,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:26:23,640 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:26:23,640 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:26:23,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:26:23 BoogieIcfgContainer [2020-07-21 01:26:23,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:26:23,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:26:23,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:26:23,651 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:26:23,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:26:21" (1/3) ... [2020-07-21 01:26:23,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45854fe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:26:23, skipping insertion in model container [2020-07-21 01:26:23,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:22" (2/3) ... [2020-07-21 01:26:23,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45854fe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:26:23, skipping insertion in model container [2020-07-21 01:26:23,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:26:23" (3/3) ... [2020-07-21 01:26:23,655 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label57.c [2020-07-21 01:26:23,665 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:26:23,673 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:26:23,687 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:26:23,712 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:26:23,712 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:26:23,713 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:26:23,713 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:26:23,713 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:26:23,713 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:26:23,714 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:26:23,714 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:26:23,737 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 01:26:23,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-07-21 01:26:23,748 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:23,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:26:23,750 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:23,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:23,756 INFO L82 PathProgramCache]: Analyzing trace with hash -667012847, now seen corresponding path program 1 times [2020-07-21 01:26:23,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:23,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [245360130] [2020-07-21 01:26:23,765 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 01:26:23,921 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:26:23,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:23,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 01:26:23,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:24,453 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:26:24,458 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:26:24,458 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:26:24,553 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 01:26:24,553 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:26:24,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [245360130] [2020-07-21 01:26:24,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:26:24,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 01:26:24,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283358515] [2020-07-21 01:26:24,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 01:26:24,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:24,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 01:26:24,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:26:24,583 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 10 states. [2020-07-21 01:26:25,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:25,753 INFO L93 Difference]: Finished difference Result 527 states and 878 transitions. [2020-07-21 01:26:25,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:26:25,755 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 97 [2020-07-21 01:26:25,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:25,769 INFO L225 Difference]: With dead ends: 527 [2020-07-21 01:26:25,770 INFO L226 Difference]: Without dead ends: 229 [2020-07-21 01:26:25,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-07-21 01:26:25,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-21 01:26:25,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-07-21 01:26:25,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 01:26:25,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2020-07-21 01:26:25,839 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 97 [2020-07-21 01:26:25,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:25,840 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2020-07-21 01:26:25,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 01:26:25,840 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2020-07-21 01:26:25,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-07-21 01:26:25,848 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:25,851 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:26:26,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:26,067 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:26,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:26,067 INFO L82 PathProgramCache]: Analyzing trace with hash 413765184, now seen corresponding path program 1 times [2020-07-21 01:26:26,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:26,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1859125085] [2020-07-21 01:26:26,068 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 01:26:26,158 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:26:26,158 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:26,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 01:26:26,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:26,669 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 01:26:26,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:26:27,069 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 01:26:27,071 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:26:27,072 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:26:27,074 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:26:27,075 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:26:27,096 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 01:26:27,097 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:26:27,142 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:26:27,205 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:26:27,296 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 01:26:27,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1859125085] [2020-07-21 01:26:27,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:26:27,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 01:26:27,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160223922] [2020-07-21 01:26:27,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 01:26:27,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:27,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 01:26:27,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 01:26:27,300 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 21 states. [2020-07-21 01:26:28,424 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 01:26:29,567 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 01:26:31,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:31,215 INFO L93 Difference]: Finished difference Result 738 states and 1083 transitions. [2020-07-21 01:26:31,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 01:26:31,220 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 106 [2020-07-21 01:26:31,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:31,226 INFO L225 Difference]: With dead ends: 738 [2020-07-21 01:26:31,226 INFO L226 Difference]: Without dead ends: 423 [2020-07-21 01:26:31,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 189 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=516, Invalid=1290, Unknown=0, NotChecked=0, Total=1806 [2020-07-21 01:26:31,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-07-21 01:26:31,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 393. [2020-07-21 01:26:31,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-21 01:26:31,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 533 transitions. [2020-07-21 01:26:31,267 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 533 transitions. Word has length 106 [2020-07-21 01:26:31,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:31,267 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 533 transitions. [2020-07-21 01:26:31,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 01:26:31,268 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 533 transitions. [2020-07-21 01:26:31,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-07-21 01:26:31,272 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:31,272 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, 1] [2020-07-21 01:26:31,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:31,486 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:31,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:31,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1725540877, now seen corresponding path program 1 times [2020-07-21 01:26:31,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:31,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [533920113] [2020-07-21 01:26:31,489 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 01:26:31,573 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:26:31,574 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:31,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 01:26:31,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:31,608 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 01:26:31,609 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:26:31,636 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:26:31,660 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 01:26:31,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:26:31,756 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:26:31,758 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:26:31,786 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:26:31,849 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:26:31,855 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:26:31,873 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 01:26:31,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [533920113] [2020-07-21 01:26:31,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:26:31,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:26:31,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796341962] [2020-07-21 01:26:31,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:26:31,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:31,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:26:31,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:26:31,879 INFO L87 Difference]: Start difference. First operand 393 states and 533 transitions. Second operand 7 states. [2020-07-21 01:26:33,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:33,562 INFO L93 Difference]: Finished difference Result 1434 states and 2028 transitions. [2020-07-21 01:26:33,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-21 01:26:33,562 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2020-07-21 01:26:33,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:33,570 INFO L225 Difference]: With dead ends: 1434 [2020-07-21 01:26:33,571 INFO L226 Difference]: Without dead ends: 1047 [2020-07-21 01:26:33,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 235 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 01:26:33,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-07-21 01:26:33,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1015. [2020-07-21 01:26:33,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2020-07-21 01:26:33,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1273 transitions. [2020-07-21 01:26:33,632 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1273 transitions. Word has length 118 [2020-07-21 01:26:33,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:33,632 INFO L479 AbstractCegarLoop]: Abstraction has 1015 states and 1273 transitions. [2020-07-21 01:26:33,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:26:33,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1273 transitions. [2020-07-21 01:26:33,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-21 01:26:33,637 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:33,637 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:26:33,851 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:33,852 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:33,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:33,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1630180496, now seen corresponding path program 1 times [2020-07-21 01:26:33,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:33,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [422468858] [2020-07-21 01:26:33,854 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 01:26:33,951 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:26:33,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:33,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:26:33,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:33,981 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 01:26:33,981 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:26:33,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [422468858] [2020-07-21 01:26:33,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:26:33,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:26:33,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651940127] [2020-07-21 01:26:33,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:26:33,983 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:33,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:26:33,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:26:33,984 INFO L87 Difference]: Start difference. First operand 1015 states and 1273 transitions. Second operand 3 states. [2020-07-21 01:26:34,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:34,612 INFO L93 Difference]: Finished difference Result 2320 states and 2946 transitions. [2020-07-21 01:26:34,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:26:34,616 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2020-07-21 01:26:34,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:34,627 INFO L225 Difference]: With dead ends: 2320 [2020-07-21 01:26:34,627 INFO L226 Difference]: Without dead ends: 1311 [2020-07-21 01:26:34,630 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:26:34,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2020-07-21 01:26:34,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1307. [2020-07-21 01:26:34,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1307 states. [2020-07-21 01:26:34,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1611 transitions. [2020-07-21 01:26:34,692 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1611 transitions. Word has length 132 [2020-07-21 01:26:34,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:34,693 INFO L479 AbstractCegarLoop]: Abstraction has 1307 states and 1611 transitions. [2020-07-21 01:26:34,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:26:34,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1611 transitions. [2020-07-21 01:26:34,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-21 01:26:34,702 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:34,702 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:26:34,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:34,918 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:34,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:34,919 INFO L82 PathProgramCache]: Analyzing trace with hash 675704611, now seen corresponding path program 1 times [2020-07-21 01:26:34,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:34,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [324497049] [2020-07-21 01:26:34,920 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 01:26:35,014 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:26:35,014 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:35,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:26:35,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:35,062 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 68 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 01:26:35,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:26:35,132 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 68 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 01:26:35,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [324497049] [2020-07-21 01:26:35,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:26:35,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:26:35,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139351196] [2020-07-21 01:26:35,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:26:35,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:35,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:26:35,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:26:35,144 INFO L87 Difference]: Start difference. First operand 1307 states and 1611 transitions. Second operand 7 states. [2020-07-21 01:26:36,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:36,417 INFO L93 Difference]: Finished difference Result 3235 states and 4175 transitions. [2020-07-21 01:26:36,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 01:26:36,421 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 152 [2020-07-21 01:26:36,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:36,437 INFO L225 Difference]: With dead ends: 3235 [2020-07-21 01:26:36,437 INFO L226 Difference]: Without dead ends: 1934 [2020-07-21 01:26:36,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 301 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:26:36,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2020-07-21 01:26:36,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 1915. [2020-07-21 01:26:36,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1915 states. [2020-07-21 01:26:36,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 2461 transitions. [2020-07-21 01:26:36,527 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 2461 transitions. Word has length 152 [2020-07-21 01:26:36,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:36,527 INFO L479 AbstractCegarLoop]: Abstraction has 1915 states and 2461 transitions. [2020-07-21 01:26:36,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:26:36,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 2461 transitions. [2020-07-21 01:26:36,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-21 01:26:36,543 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:36,544 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:26:36,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:36,759 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:36,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:36,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1829769120, now seen corresponding path program 1 times [2020-07-21 01:26:36,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:36,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1525390406] [2020-07-21 01:26:36,760 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 01:26:36,868 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:26:36,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:36,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:26:36,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:36,910 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 92 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-07-21 01:26:36,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:26:36,980 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 75 proven. 10 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-07-21 01:26:36,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1525390406] [2020-07-21 01:26:36,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:26:36,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 01:26:36,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716358284] [2020-07-21 01:26:36,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 01:26:36,983 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:36,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 01:26:36,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:26:36,983 INFO L87 Difference]: Start difference. First operand 1915 states and 2461 transitions. Second operand 8 states. [2020-07-21 01:26:38,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:38,179 INFO L93 Difference]: Finished difference Result 4097 states and 5390 transitions. [2020-07-21 01:26:38,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:26:38,180 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 155 [2020-07-21 01:26:38,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:38,192 INFO L225 Difference]: With dead ends: 4097 [2020-07-21 01:26:38,193 INFO L226 Difference]: Without dead ends: 1587 [2020-07-21 01:26:38,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 305 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 01:26:38,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2020-07-21 01:26:38,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2020-07-21 01:26:38,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1587 states. [2020-07-21 01:26:38,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 1933 transitions. [2020-07-21 01:26:38,268 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 1933 transitions. Word has length 155 [2020-07-21 01:26:38,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:38,270 INFO L479 AbstractCegarLoop]: Abstraction has 1587 states and 1933 transitions. [2020-07-21 01:26:38,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 01:26:38,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 1933 transitions. [2020-07-21 01:26:38,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-21 01:26:38,277 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:38,277 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:26:38,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:38,492 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:38,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:38,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1138125929, now seen corresponding path program 1 times [2020-07-21 01:26:38,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:38,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [503966340] [2020-07-21 01:26:38,493 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 01:26:38,614 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:26:38,614 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:38,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:26:38,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:38,672 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 85 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-21 01:26:38,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:26:38,754 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 74 proven. 13 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-21 01:26:38,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [503966340] [2020-07-21 01:26:38,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:26:38,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:26:38,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589828905] [2020-07-21 01:26:38,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:26:38,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:38,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:26:38,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:26:38,757 INFO L87 Difference]: Start difference. First operand 1587 states and 1933 transitions. Second operand 7 states. [2020-07-21 01:26:39,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:39,478 INFO L93 Difference]: Finished difference Result 4019 states and 5093 transitions. [2020-07-21 01:26:39,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:26:39,479 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 161 [2020-07-21 01:26:39,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:39,479 INFO L225 Difference]: With dead ends: 4019 [2020-07-21 01:26:39,480 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:26:39,490 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 318 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 01:26:39,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:26:39,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:26:39,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:26:39,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:26:39,491 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 161 [2020-07-21 01:26:39,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:39,492 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:26:39,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:26:39,492 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:26:39,492 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:26:39,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:39,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:26:40,795 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 76 [2020-07-21 01:26:40,993 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 35 [2020-07-21 01:26:41,184 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 35 [2020-07-21 01:26:41,188 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:26:41,188 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (= ~a19~0 |old(~a19~0)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|) (not (= 1 ~a21~0))) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 01:26:41,188 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:26:41,188 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,189 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,189 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,189 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,189 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,189 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 01:26:41,189 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 01:26:41,190 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 01:26:41,190 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 01:26:41,190 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 01:26:41,190 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 01:26:41,191 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 01:26:41,191 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 01:26:41,191 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 01:26:41,191 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 01:26:41,191 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:26:41,191 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:26:41,191 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 01:26:41,192 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,192 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,192 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,192 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,192 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 01:26:41,192 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,192 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 01:26:41,192 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 01:26:41,192 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 01:26:41,193 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 01:26:41,193 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 01:26:41,193 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 01:26:41,193 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 01:26:41,193 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:26:41,193 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:26:41,193 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 01:26:41,193 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 01:26:41,194 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 01:26:41,194 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:26:41,194 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:26:41,194 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 01:26:41,194 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,194 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,194 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,194 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,194 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,195 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 445) no Hoare annotation was computed. [2020-07-21 01:26:41,195 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:26:41,195 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 01:26:41,195 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:26:41,195 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 01:26:41,195 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 01:26:41,195 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 01:26:41,195 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 01:26:41,196 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 01:26:41,196 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 01:26:41,196 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 01:26:41,196 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 01:26:41,196 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,196 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,196 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,196 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,196 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,197 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 01:26:41,197 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 01:26:41,197 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 01:26:41,197 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 01:26:41,197 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 01:26:41,197 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 01:26:41,197 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 01:26:41,197 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 01:26:41,197 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 01:26:41,197 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 01:26:41,197 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 01:26:41,197 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 01:26:41,198 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 01:26:41,198 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,198 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,198 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,198 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,198 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,198 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 01:26:41,198 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 01:26:41,198 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 01:26:41,199 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 01:26:41,199 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 01:26:41,199 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 01:26:41,199 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 01:26:41,199 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 01:26:41,199 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 01:26:41,199 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 01:26:41,199 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 01:26:41,199 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 01:26:41,199 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 01:26:41,199 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:26:41,199 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 01:26:41,199 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:26:41,200 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,200 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,200 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,200 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,200 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 01:26:41,200 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,200 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:26:41,200 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,200 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:26:41,200 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:26:41,200 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:26:41,200 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,200 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,201 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 01:26:41,201 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 01:26:41,201 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 01:26:41,201 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 01:26:41,201 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 01:26:41,201 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 01:26:41,201 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 01:26:41,201 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 01:26:41,201 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 01:26:41,201 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 01:26:41,201 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 01:26:41,201 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,201 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,202 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,202 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,202 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,202 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,202 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 01:26:41,202 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 01:26:41,202 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 01:26:41,202 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 01:26:41,202 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 01:26:41,202 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 01:26:41,202 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 01:26:41,202 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 01:26:41,202 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 01:26:41,203 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 01:26:41,203 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 01:26:41,203 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,203 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,203 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,203 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,203 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,203 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,203 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 01:26:41,203 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 01:26:41,203 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 01:26:41,203 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 01:26:41,203 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 01:26:41,203 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 01:26:41,204 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 01:26:41,204 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 01:26:41,204 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 01:26:41,204 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 01:26:41,204 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 01:26:41,204 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 01:26:41,204 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 01:26:41,204 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 01:26:41,204 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,204 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,204 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,205 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse8 (<= ~a11~0 |old(~a11~0)|)) (.cse9 (not (= 1 |old(~a25~0)|))) (.cse6 (<= ~a17~0 |old(~a17~0)|)) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse1 (not (= 8 |old(~a17~0)|))) (.cse3 (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|)))) (.cse4 (not (= 1 ~a21~0))) (.cse2 (= 8 ~a17~0)) (.cse5 (not (<= |old(~a11~0)| 0))) (.cse7 (not (<= |old(~a28~0)| 10))) (.cse10 (not (< |old(~a17~0)| 9))) (.cse11 (= ~a19~0 |old(~a19~0)|)) (.cse12 (<= |old(~a28~0)| ~a28~0))) (and (or .cse0 .cse1 (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) (and (= 7 ~a28~0) .cse2) .cse3 .cse4 .cse5) (or .cse6 .cse7 (not (<= |old(~a17~0)| 7))) (or .cse0 .cse8 .cse9 .cse10 .cse4 .cse5) (or .cse8 .cse7 .cse10 .cse4 .cse5) (or .cse0 .cse9 .cse10 (and .cse6 .cse11 .cse12 (= 1 ~a25~0))) (or .cse0 (not (= 10 |old(~a28~0)|)) .cse1 .cse3 .cse4 .cse2 .cse5) (or .cse7 .cse10 (and (<= ~a28~0 10) .cse11 (< ~a17~0 9) .cse12 (= ~a25~0 |old(~a25~0)|))))) [2020-07-21 01:26:41,205 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,205 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,205 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,205 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 01:26:41,205 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 01:26:41,205 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 01:26:41,205 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 01:26:41,205 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 01:26:41,205 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 01:26:41,205 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 01:26:41,205 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 01:26:41,205 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 01:26:41,205 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 01:26:41,206 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 01:26:41,206 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 01:26:41,206 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 01:26:41,206 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,206 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,206 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,206 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,206 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,206 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,206 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 01:26:41,206 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 01:26:41,206 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 01:26:41,206 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 01:26:41,206 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 01:26:41,206 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 01:26:41,207 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 01:26:41,207 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 01:26:41,207 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 01:26:41,207 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 01:26:41,207 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 01:26:41,207 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:26:41,207 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:26:41,207 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 01:26:41,207 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 01:26:41,207 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 01:26:41,207 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,207 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,207 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,207 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,208 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:41,208 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 01:26:41,208 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 01:26:41,208 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 01:26:41,208 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 01:26:41,208 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 01:26:41,208 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 01:26:41,208 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 01:26:41,208 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 01:26:41,208 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 01:26:41,208 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 01:26:41,208 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 01:26:41,208 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:26:41,208 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 01:26:41,209 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:26:41,209 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 01:26:41,209 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:26:41,209 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:26:41,209 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 01:26:41,209 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 01:26:41,209 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:26:41,209 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 01:26:41,209 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:26:41,209 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:26:41,209 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)|)) (and (<= ~a11~0 |old(~a11~0)|) (= 7 ~a28~0) (= ~a19~0 |old(~a19~0)|) (= 8 ~a17~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0))) [2020-07-21 01:26:41,209 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (< ~a17~0 9))) (or (not (= 1 |old(~a19~0)|)) (and (<= ~a28~0 10) .cse0) (not (= 8 |old(~a17~0)|)) (and (= 1 ~a19~0) .cse0 (= 1 ~a25~0)) (not (= 7 |old(~a28~0)|)) (not (<= |old(~a25~0)| 0)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)))) [2020-07-21 01:26:41,210 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:26:41,210 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:26:41,210 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (< ~a17~0 9))) (or (not (= 1 |old(~a19~0)|)) (and (<= ~a28~0 10) .cse0) (not (= 8 |old(~a17~0)|)) (and (= 1 ~a19~0) .cse0 (= 1 ~a25~0)) (not (= 7 |old(~a28~0)|)) (not (<= |old(~a25~0)| 0)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)))) [2020-07-21 01:26:41,210 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 01:26:41,210 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 01:26:41,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:26:41 BoogieIcfgContainer [2020-07-21 01:26:41,229 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:26:41,231 INFO L168 Benchmark]: Toolchain (without parser) took 19655.84 ms. Allocated memory was 145.2 MB in the beginning and 450.9 MB in the end (delta: 305.7 MB). Free memory was 101.5 MB in the beginning and 197.6 MB in the end (delta: -96.1 MB). Peak memory consumption was 321.1 MB. Max. memory is 7.1 GB. [2020-07-21 01:26:41,231 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 01:26:41,232 INFO L168 Benchmark]: CACSL2BoogieTranslator took 778.07 ms. Allocated memory was 145.2 MB in the beginning and 204.5 MB in the end (delta: 59.2 MB). Free memory was 101.1 MB in the beginning and 169.6 MB in the end (delta: -68.5 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. [2020-07-21 01:26:41,233 INFO L168 Benchmark]: Boogie Preprocessor took 114.64 ms. Allocated memory is still 204.5 MB. Free memory was 169.6 MB in the beginning and 164.6 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 01:26:41,234 INFO L168 Benchmark]: RCFGBuilder took 1175.39 ms. Allocated memory was 204.5 MB in the beginning and 238.0 MB in the end (delta: 33.6 MB). Free memory was 163.9 MB in the beginning and 179.6 MB in the end (delta: -15.7 MB). Peak memory consumption was 80.0 MB. Max. memory is 7.1 GB. [2020-07-21 01:26:41,235 INFO L168 Benchmark]: TraceAbstraction took 17581.25 ms. Allocated memory was 238.0 MB in the beginning and 450.9 MB in the end (delta: 212.9 MB). Free memory was 179.6 MB in the beginning and 197.6 MB in the end (delta: -17.9 MB). Peak memory consumption was 306.4 MB. Max. memory is 7.1 GB. [2020-07-21 01:26:41,239 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 778.07 ms. Allocated memory was 145.2 MB in the beginning and 204.5 MB in the end (delta: 59.2 MB). Free memory was 101.1 MB in the beginning and 169.6 MB in the end (delta: -68.5 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.64 ms. Allocated memory is still 204.5 MB. Free memory was 169.6 MB in the beginning and 164.6 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1175.39 ms. Allocated memory was 204.5 MB in the beginning and 238.0 MB in the end (delta: 33.6 MB). Free memory was 163.9 MB in the beginning and 179.6 MB in the end (delta: -15.7 MB). Peak memory consumption was 80.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17581.25 ms. Allocated memory was 238.0 MB in the beginning and 450.9 MB in the end (delta: 212.9 MB). Free memory was 179.6 MB in the beginning and 197.6 MB in the end (delta: -17.9 MB). Peak memory consumption was 306.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 445]: 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)) || (a28 <= 10 && a17 < 9)) || !(8 == \old(a17))) || ((1 == a19 && a17 < 9) && 1 == a25)) || !(7 == \old(a28))) || !(\old(a25) <= 0)) || !(1 == a21)) || !(\old(a11) <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.9s, OverallIterations: 7, TraceHistogramMax: 5, AutomataDifference: 10.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 664 SDtfs, 4491 SDslu, 699 SDs, 0 SdLazy, 7972 SolverSat, 1192 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1662 GetRequests, 1566 SyntacticMatches, 5 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1915occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 85 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 81 PreInvPairs, 143 NumberOfFragments, 375 HoareAnnotationTreeSize, 81 FomulaSimplifications, 2001 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2802 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 921 NumberOfCodeBlocks, 554 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1601 ConstructedInterpolants, 0 QuantifiedInterpolants, 1065913 SizeOfPredicates, 36 NumberOfNonLiveVariables, 2307 ConjunctsInSsa, 118 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 635/676 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...