/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:30:53,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 11:30:53,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 11:30:53,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 11:30:53,489 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:30:53,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:30:53,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:30:53,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:30:53,508 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:30:53,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:30:53,511 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:30:53,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:30:53,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:30:53,516 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:30:53,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:30:53,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:30:53,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:30:53,520 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:30:53,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:30:53,527 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:30:53,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:30:53,531 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:30:53,532 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:30:53,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:30:53,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 11:30:53,551 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:30:53,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:30:53,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:30:53,554 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 11:30:53,575 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:30:53,575 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:30:53,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:30:53,578 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:30:53,578 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:30:53,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:30:53,579 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:30:53,579 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:30:53,579 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:30:53,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:30:53,580 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:30:53,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:30:53,581 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:30:53,581 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:30:53,581 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:30:53,581 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:30:53,581 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:30:53,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:30:53,582 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:30:53,582 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:30:53,582 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:30:53,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:30:53,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:30:53,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:30:53,583 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:30:53,583 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:30:53,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:30:53,583 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:30:53,583 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:30:53,584 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-21 11:30:53,862 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:30:53,875 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:30:53,878 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:30:53,880 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:30:53,880 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:30:53,881 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label51.c [2020-07-21 11:30:53,953 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fa99353b/59e25e7cbcac4e48913c0fc6accfc31d/FLAG75e4e9807 [2020-07-21 11:30:54,558 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:30:54,559 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label51.c [2020-07-21 11:30:54,584 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fa99353b/59e25e7cbcac4e48913c0fc6accfc31d/FLAG75e4e9807 [2020-07-21 11:30:54,794 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fa99353b/59e25e7cbcac4e48913c0fc6accfc31d [2020-07-21 11:30:54,807 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:30:54,810 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:30:54,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:30:54,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:30:54,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:30:54,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:30:54" (1/1) ... [2020-07-21 11:30:54,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f14a617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:30:54, skipping insertion in model container [2020-07-21 11:30:54,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:30:54" (1/1) ... [2020-07-21 11:30:54,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:30:54,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:30:55,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:30:55,409 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:30:55,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:30:55,545 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:30:55,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:30:55 WrapperNode [2020-07-21 11:30:55,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:30:55,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:30:55,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:30:55,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:30:55,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:30:55" (1/1) ... [2020-07-21 11:30:55,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:30:55" (1/1) ... [2020-07-21 11:30:55,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:30:55" (1/1) ... [2020-07-21 11:30:55,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:30:55" (1/1) ... [2020-07-21 11:30:55,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:30:55" (1/1) ... [2020-07-21 11:30:55,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:30:55" (1/1) ... [2020-07-21 11:30:55,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:30:55" (1/1) ... [2020-07-21 11:30:55,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:30:55,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:30:55,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:30:55,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:30:55,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:30:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:30:55,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:30:55,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:30:55,756 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 11:30:55,756 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:30:55,756 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 11:30:55,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:30:55,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 11:30:55,757 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 11:30:55,757 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:30:55,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:30:55,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:30:57,017 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:30:57,018 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 11:30:57,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:30:57 BoogieIcfgContainer [2020-07-21 11:30:57,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:30:57,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:30:57,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:30:57,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:30:57,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:30:54" (1/3) ... [2020-07-21 11:30:57,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2078065a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:30:57, skipping insertion in model container [2020-07-21 11:30:57,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:30:55" (2/3) ... [2020-07-21 11:30:57,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2078065a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:30:57, skipping insertion in model container [2020-07-21 11:30:57,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:30:57" (3/3) ... [2020-07-21 11:30:57,035 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label51.c [2020-07-21 11:30:57,047 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:30:57,056 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:30:57,073 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:30:57,099 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:30:57,099 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:30:57,099 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:30:57,100 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:30:57,100 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:30:57,100 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:30:57,100 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:30:57,101 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:30:57,124 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 11:30:57,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-21 11:30:57,138 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:30:57,139 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] [2020-07-21 11:30:57,140 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:30:57,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:30:57,146 INFO L82 PathProgramCache]: Analyzing trace with hash -689906609, now seen corresponding path program 1 times [2020-07-21 11:30:57,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:30:57,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1585440133] [2020-07-21 11:30:57,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:30:57,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:30:57,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:30:57,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:30:57,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:30:57,342 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:30:57,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1585440133] [2020-07-21 11:30:57,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:30:57,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:30:57,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023173923] [2020-07-21 11:30:57,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:30:57,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:30:57,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:30:57,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:30:57,368 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 11:30:58,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:30:58,427 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions. [2020-07-21 11:30:58,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:30:58,429 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-07-21 11:30:58,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:30:58,446 INFO L225 Difference]: With dead ends: 586 [2020-07-21 11:30:58,446 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 11:30:58,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:30:58,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 11:30:58,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 11:30:58,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 11:30:58,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 446 transitions. [2020-07-21 11:30:58,526 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 446 transitions. Word has length 56 [2020-07-21 11:30:58,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:30:58,526 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 446 transitions. [2020-07-21 11:30:58,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:30:58,527 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 446 transitions. [2020-07-21 11:30:58,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-07-21 11:30:58,533 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:30:58,533 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:30:58,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:30:58,747 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:30:58,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:30:58,748 INFO L82 PathProgramCache]: Analyzing trace with hash 371731122, now seen corresponding path program 1 times [2020-07-21 11:30:58,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:30:58,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [15742299] [2020-07-21 11:30:58,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:30:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:30:58,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:30:58,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:30:58,874 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:30:58,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:30:58,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [15742299] [2020-07-21 11:30:58,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:30:58,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:30:58,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089269198] [2020-07-21 11:30:58,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:30:58,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:30:58,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:30:58,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:30:58,878 INFO L87 Difference]: Start difference. First operand 294 states and 446 transitions. Second operand 3 states. [2020-07-21 11:30:59,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:30:59,585 INFO L93 Difference]: Finished difference Result 868 states and 1337 transitions. [2020-07-21 11:30:59,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:30:59,586 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-07-21 11:30:59,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:30:59,592 INFO L225 Difference]: With dead ends: 868 [2020-07-21 11:30:59,592 INFO L226 Difference]: Without dead ends: 580 [2020-07-21 11:30:59,594 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:30:59,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-21 11:30:59,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 437. [2020-07-21 11:30:59,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-21 11:30:59,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 648 transitions. [2020-07-21 11:30:59,625 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 648 transitions. Word has length 126 [2020-07-21 11:30:59,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:30:59,626 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 648 transitions. [2020-07-21 11:30:59,626 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:30:59,627 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 648 transitions. [2020-07-21 11:30:59,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-21 11:30:59,630 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:30:59,630 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:30:59,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:30:59,844 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:30:59,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:30:59,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1345148817, now seen corresponding path program 1 times [2020-07-21 11:30:59,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:30:59,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2097838336] [2020-07-21 11:30:59,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:30:59,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:30:59,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:30:59,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:31:00,006 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:31:00,007 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:31:00,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2097838336] [2020-07-21 11:31:00,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:31:00,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:31:00,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862151224] [2020-07-21 11:31:00,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:31:00,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:31:00,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:31:00,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:31:00,012 INFO L87 Difference]: Start difference. First operand 437 states and 648 transitions. Second operand 3 states. [2020-07-21 11:31:00,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:31:00,711 INFO L93 Difference]: Finished difference Result 868 states and 1308 transitions. [2020-07-21 11:31:00,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:31:00,713 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-07-21 11:31:00,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:31:00,720 INFO L225 Difference]: With dead ends: 868 [2020-07-21 11:31:00,721 INFO L226 Difference]: Without dead ends: 866 [2020-07-21 11:31:00,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:31:00,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2020-07-21 11:31:00,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 437. [2020-07-21 11:31:00,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-21 11:31:00,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 648 transitions. [2020-07-21 11:31:00,752 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 648 transitions. Word has length 133 [2020-07-21 11:31:00,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:31:00,752 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 648 transitions. [2020-07-21 11:31:00,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:31:00,752 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 648 transitions. [2020-07-21 11:31:00,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-07-21 11:31:00,756 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:31:00,757 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:31:00,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:31:00,970 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:31:00,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:31:00,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1734171087, now seen corresponding path program 1 times [2020-07-21 11:31:00,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:31:00,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [845744546] [2020-07-21 11:31:00,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:31:01,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:31:01,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:31:01,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:31:01,143 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:31:01,143 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:31:01,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [845744546] [2020-07-21 11:31:01,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:31:01,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:31:01,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802127652] [2020-07-21 11:31:01,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:31:01,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:31:01,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:31:01,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:31:01,146 INFO L87 Difference]: Start difference. First operand 437 states and 648 transitions. Second operand 5 states. [2020-07-21 11:31:02,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:31:02,176 INFO L93 Difference]: Finished difference Result 1325 states and 2011 transitions. [2020-07-21 11:31:02,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:31:02,178 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 181 [2020-07-21 11:31:02,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:31:02,185 INFO L225 Difference]: With dead ends: 1325 [2020-07-21 11:31:02,185 INFO L226 Difference]: Without dead ends: 894 [2020-07-21 11:31:02,187 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:31:02,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-07-21 11:31:02,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 882. [2020-07-21 11:31:02,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 882 states. [2020-07-21 11:31:02,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1274 transitions. [2020-07-21 11:31:02,230 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1274 transitions. Word has length 181 [2020-07-21 11:31:02,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:31:02,230 INFO L479 AbstractCegarLoop]: Abstraction has 882 states and 1274 transitions. [2020-07-21 11:31:02,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:31:02,231 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1274 transitions. [2020-07-21 11:31:02,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-07-21 11:31:02,239 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:31:02,240 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:31:02,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:31:02,452 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:31:02,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:31:02,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1895595301, now seen corresponding path program 1 times [2020-07-21 11:31:02,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:31:02,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1953447005] [2020-07-21 11:31:02,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:31:02,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:31:02,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:31:02,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:31:02,624 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-21 11:31:02,624 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:31:02,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1953447005] [2020-07-21 11:31:02,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:31:02,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:31:02,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850078077] [2020-07-21 11:31:02,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:31:02,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:31:02,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:31:02,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:31:02,627 INFO L87 Difference]: Start difference. First operand 882 states and 1274 transitions. Second operand 3 states. [2020-07-21 11:31:03,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:31:03,320 INFO L93 Difference]: Finished difference Result 2044 states and 2964 transitions. [2020-07-21 11:31:03,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:31:03,322 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 252 [2020-07-21 11:31:03,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:31:03,327 INFO L225 Difference]: With dead ends: 2044 [2020-07-21 11:31:03,327 INFO L226 Difference]: Without dead ends: 735 [2020-07-21 11:31:03,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:31:03,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2020-07-21 11:31:03,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 735. [2020-07-21 11:31:03,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2020-07-21 11:31:03,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 1050 transitions. [2020-07-21 11:31:03,368 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 1050 transitions. Word has length 252 [2020-07-21 11:31:03,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:31:03,369 INFO L479 AbstractCegarLoop]: Abstraction has 735 states and 1050 transitions. [2020-07-21 11:31:03,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:31:03,369 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 1050 transitions. [2020-07-21 11:31:03,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-07-21 11:31:03,376 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:31:03,376 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:31:03,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:31:03,590 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:31:03,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:31:03,591 INFO L82 PathProgramCache]: Analyzing trace with hash -461645190, now seen corresponding path program 1 times [2020-07-21 11:31:03,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:31:03,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [123530655] [2020-07-21 11:31:03,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:31:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:31:03,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:31:03,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:31:03,790 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-07-21 11:31:03,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:31:03,790 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [123530655] [2020-07-21 11:31:03,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:31:03,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:31:03,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213418915] [2020-07-21 11:31:03,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:31:03,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:31:03,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:31:03,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:31:03,793 INFO L87 Difference]: Start difference. First operand 735 states and 1050 transitions. Second operand 5 states. [2020-07-21 11:31:04,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:31:04,754 INFO L93 Difference]: Finished difference Result 1776 states and 2564 transitions. [2020-07-21 11:31:04,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 11:31:04,757 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 273 [2020-07-21 11:31:04,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:31:04,767 INFO L225 Difference]: With dead ends: 1776 [2020-07-21 11:31:04,768 INFO L226 Difference]: Without dead ends: 1047 [2020-07-21 11:31:04,775 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:31:04,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-07-21 11:31:04,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1039. [2020-07-21 11:31:04,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1039 states. [2020-07-21 11:31:04,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1427 transitions. [2020-07-21 11:31:04,825 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1427 transitions. Word has length 273 [2020-07-21 11:31:04,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:31:04,826 INFO L479 AbstractCegarLoop]: Abstraction has 1039 states and 1427 transitions. [2020-07-21 11:31:04,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:31:04,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1427 transitions. [2020-07-21 11:31:04,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-07-21 11:31:04,832 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:31:04,832 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:31:05,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:31:05,046 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:31:05,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:31:05,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1951155213, now seen corresponding path program 1 times [2020-07-21 11:31:05,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:31:05,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1336648932] [2020-07-21 11:31:05,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:31:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:31:05,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:31:05,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:31:05,243 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 175 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:31:05,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:31:05,421 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 175 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:31:05,421 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1336648932] [2020-07-21 11:31:05,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:31:05,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:31:05,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001928988] [2020-07-21 11:31:05,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:31:05,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:31:05,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:31:05,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:31:05,424 INFO L87 Difference]: Start difference. First operand 1039 states and 1427 transitions. Second operand 6 states. [2020-07-21 11:31:06,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:31:06,521 INFO L93 Difference]: Finished difference Result 2696 states and 3833 transitions. [2020-07-21 11:31:06,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:31:06,525 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 276 [2020-07-21 11:31:06,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:31:06,535 INFO L225 Difference]: With dead ends: 2696 [2020-07-21 11:31:06,535 INFO L226 Difference]: Without dead ends: 1075 [2020-07-21 11:31:06,543 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 548 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:31:06,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2020-07-21 11:31:06,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 896. [2020-07-21 11:31:06,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 896 states. [2020-07-21 11:31:06,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1131 transitions. [2020-07-21 11:31:06,579 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1131 transitions. Word has length 276 [2020-07-21 11:31:06,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:31:06,579 INFO L479 AbstractCegarLoop]: Abstraction has 896 states and 1131 transitions. [2020-07-21 11:31:06,579 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:31:06,579 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1131 transitions. [2020-07-21 11:31:06,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-07-21 11:31:06,584 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:31:06,585 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 11:31:06,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:31:06,798 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:31:06,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:31:06,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1640604435, now seen corresponding path program 1 times [2020-07-21 11:31:06,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:31:06,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2096934566] [2020-07-21 11:31:06,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:31:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:31:06,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:31:06,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:31:07,021 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-07-21 11:31:07,021 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:31:07,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2096934566] [2020-07-21 11:31:07,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:31:07,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:31:07,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133957607] [2020-07-21 11:31:07,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:31:07,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:31:07,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:31:07,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:31:07,023 INFO L87 Difference]: Start difference. First operand 896 states and 1131 transitions. Second operand 5 states. [2020-07-21 11:31:07,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:31:07,855 INFO L93 Difference]: Finished difference Result 2257 states and 2970 transitions. [2020-07-21 11:31:07,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:31:07,856 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 292 [2020-07-21 11:31:07,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:31:07,863 INFO L225 Difference]: With dead ends: 2257 [2020-07-21 11:31:07,864 INFO L226 Difference]: Without dead ends: 1367 [2020-07-21 11:31:07,866 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:31:07,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2020-07-21 11:31:07,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1339. [2020-07-21 11:31:07,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1339 states. [2020-07-21 11:31:07,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1632 transitions. [2020-07-21 11:31:07,913 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1632 transitions. Word has length 292 [2020-07-21 11:31:07,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:31:07,914 INFO L479 AbstractCegarLoop]: Abstraction has 1339 states and 1632 transitions. [2020-07-21 11:31:07,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:31:07,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1632 transitions. [2020-07-21 11:31:07,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2020-07-21 11:31:07,920 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:31:07,921 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 11:31:08,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:31:08,136 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:31:08,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:31:08,137 INFO L82 PathProgramCache]: Analyzing trace with hash 753349346, now seen corresponding path program 1 times [2020-07-21 11:31:08,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:31:08,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1213002253] [2020-07-21 11:31:08,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:31:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:31:08,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:31:08,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:31:08,342 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 192 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:31:08,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:31:08,495 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 192 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:31:08,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1213002253] [2020-07-21 11:31:08,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:31:08,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:31:08,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660676075] [2020-07-21 11:31:08,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:31:08,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:31:08,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:31:08,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:31:08,498 INFO L87 Difference]: Start difference. First operand 1339 states and 1632 transitions. Second operand 7 states. [2020-07-21 11:31:09,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:31:09,987 INFO L93 Difference]: Finished difference Result 3284 states and 4142 transitions. [2020-07-21 11:31:09,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 11:31:09,988 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 293 [2020-07-21 11:31:09,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:31:09,989 INFO L225 Difference]: With dead ends: 3284 [2020-07-21 11:31:09,989 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 11:31:09,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 595 GetRequests, 584 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 11:31:09,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 11:31:09,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 11:31:09,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 11:31:09,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 11:31:09,998 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 293 [2020-07-21 11:31:09,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:31:09,998 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 11:31:09,998 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:31:09,998 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 11:31:09,998 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 11:31:10,214 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:31:10,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 11:31:10,979 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 47 [2020-07-21 11:31:11,143 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 34 [2020-07-21 11:31:11,303 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 34 [2020-07-21 11:31:11,307 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:31:11,307 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= ~a1~0 |old(~a1~0)|) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|)) [2020-07-21 11:31:11,308 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:31:11,308 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 11:31:11,308 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,308 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,308 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,308 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,308 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,309 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,309 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 11:31:11,309 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 11:31:11,309 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 11:31:11,309 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 11:31:11,309 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 11:31:11,309 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 11:31:11,309 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 11:31:11,309 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 11:31:11,309 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 11:31:11,310 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 11:31:11,310 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 11:31:11,310 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,310 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,310 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,310 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,310 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,310 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 11:31:11,311 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 11:31:11,311 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 11:31:11,311 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 11:31:11,311 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 11:31:11,311 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 11:31:11,311 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 11:31:11,311 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 11:31:11,311 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 11:31:11,311 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 11:31:11,311 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 11:31:11,311 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 11:31:11,311 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 11:31:11,312 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 154) no Hoare annotation was computed. [2020-07-21 11:31:11,312 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 11:31:11,312 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,312 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,312 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,312 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,312 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,312 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 11:31:11,312 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 11:31:11,312 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 11:31:11,313 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 11:31:11,313 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 11:31:11,313 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 11:31:11,313 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 11:31:11,313 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 11:31:11,313 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 11:31:11,313 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 11:31:11,313 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,313 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,313 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,314 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,314 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,314 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 11:31:11,314 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 11:31:11,314 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 11:31:11,314 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 11:31:11,314 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 11:31:11,314 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 11:31:11,315 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 11:31:11,315 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 11:31:11,315 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 11:31:11,315 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 11:31:11,315 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 11:31:11,315 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 11:31:11,315 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 11:31:11,315 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,315 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,316 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,316 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,316 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,316 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 11:31:11,316 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 11:31:11,316 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 11:31:11,316 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 11:31:11,316 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 11:31:11,316 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 11:31:11,317 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 11:31:11,317 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 11:31:11,317 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 11:31:11,317 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,317 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,317 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,317 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,317 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,317 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,318 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,318 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 11:31:11,318 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 11:31:11,318 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 11:31:11,318 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 11:31:11,318 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 11:31:11,318 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 11:31:11,318 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 11:31:11,318 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 11:31:11,319 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 11:31:11,319 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 11:31:11,319 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 11:31:11,319 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 11:31:11,319 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 11:31:11,319 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,319 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,319 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,319 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,320 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 11:31:11,320 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,320 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,320 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 11:31:11,320 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 11:31:11,320 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 11:31:11,320 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 11:31:11,320 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 11:31:11,321 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 11:31:11,321 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 11:31:11,321 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 11:31:11,321 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 11:31:11,321 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 11:31:11,321 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 11:31:11,321 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 11:31:11,321 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 11:31:11,322 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,322 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,322 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,322 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,322 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,322 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,322 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 11:31:11,322 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 11:31:11,323 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 11:31:11,323 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 11:31:11,323 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 11:31:11,323 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 11:31:11,323 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 11:31:11,323 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 11:31:11,323 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 11:31:11,323 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 11:31:11,324 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 11:31:11,324 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse2 (<= ~a10~0 |old(~a10~0)|)) (.cse0 (<= ~a1~0 |old(~a1~0)|)) (.cse5 (<= |old(~a10~0)| ~a10~0)) (.cse6 (<= ~a19~0 |old(~a19~0)|))) (let ((.cse3 (<= 9 ~a19~0)) (.cse4 (<= 23 ~a1~0)) (.cse7 (and (not (<= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)))) (.cse8 (not (<= |old(~a19~0)| 8))) (.cse1 (and .cse2 .cse0 .cse5 .cse6))) (and (or (not (<= |old(~a19~0)| 6)) (and .cse0 (<= ~a19~0 6))) (or .cse1 (not (<= |old(~a10~0)| 2))) (or (not (< 1 |old(~a10~0)|)) (and .cse2 .cse0 (or .cse3 .cse4) .cse5 .cse6) (not (<= |old(~a19~0)| 9)) .cse7) (or .cse3 .cse8 .cse4 .cse7) (or (not (<= 4 |old(~a10~0)|)) .cse8 .cse1)))) [2020-07-21 11:31:11,324 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 11:31:11,324 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 11:31:11,324 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 11:31:11,324 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,325 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,325 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,325 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,325 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,325 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,325 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 11:31:11,325 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 11:31:11,325 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 11:31:11,326 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 11:31:11,326 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 11:31:11,326 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 11:31:11,326 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 11:31:11,326 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 11:31:11,326 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 11:31:11,326 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 11:31:11,326 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 11:31:11,326 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 11:31:11,327 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 11:31:11,327 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,327 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,327 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,327 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,327 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,327 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,327 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 11:31:11,327 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 11:31:11,328 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 11:31:11,328 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 11:31:11,328 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 11:31:11,328 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 11:31:11,328 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 11:31:11,328 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 11:31:11,328 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 11:31:11,328 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 11:31:11,328 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 11:31:11,329 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 11:31:11,329 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,329 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,329 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,329 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,329 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,329 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:31:11,329 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 11:31:11,329 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 11:31:11,330 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 11:31:11,330 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 11:31:11,330 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 11:31:11,330 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 11:31:11,330 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 11:31:11,330 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 11:31:11,330 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 11:31:11,330 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 11:31:11,330 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 11:31:11,331 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 11:31:11,331 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:31:11,331 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= ~a19~0 9) (<= 9 ~a19~0) (<= ~a1~0 23) (<= 23 ~a1~0)) [2020-07-21 11:31:11,331 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:31:11,331 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:31:11,331 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) (and (<= 9 ~a19~0) (<= ~a10~0 |old(~a10~0)|) (<= ~a1~0 23) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) (<= 23 ~a1~0))) [2020-07-21 11:31:11,332 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 11:31:11,332 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (and (<= ~a19~0 9) (or (<= 9 ~a19~0) (<= 23 ~a1~0))) (not (<= |old(~a1~0)| 23)) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (not (<= |old(~a19~0)| 9)) (and (<= ~a19~0 8) (<= 4 ~a10~0))) [2020-07-21 11:31:11,332 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 11:31:11,332 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 11:31:11,332 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (and (<= ~a19~0 9) (or (<= 9 ~a19~0) (<= 23 ~a1~0))) (not (<= |old(~a1~0)| 23)) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (not (<= |old(~a19~0)| 9)) (and (<= ~a19~0 8) (<= 4 ~a10~0))) [2020-07-21 11:31:11,332 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 11:31:11,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:31:11 BoogieIcfgContainer [2020-07-21 11:31:11,352 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:31:11,354 INFO L168 Benchmark]: Toolchain (without parser) took 16546.00 ms. Allocated memory was 145.2 MB in the beginning and 471.3 MB in the end (delta: 326.1 MB). Free memory was 100.1 MB in the beginning and 110.3 MB in the end (delta: -10.3 MB). Peak memory consumption was 315.8 MB. Max. memory is 7.1 GB. [2020-07-21 11:31:11,355 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 145.2 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 11:31:11,356 INFO L168 Benchmark]: CACSL2BoogieTranslator took 734.95 ms. Allocated memory was 145.2 MB in the beginning and 205.0 MB in the end (delta: 59.8 MB). Free memory was 99.6 MB in the beginning and 170.7 MB in the end (delta: -71.1 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. [2020-07-21 11:31:11,357 INFO L168 Benchmark]: Boogie Preprocessor took 134.08 ms. Allocated memory is still 205.0 MB. Free memory was 170.7 MB in the beginning and 165.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-21 11:31:11,358 INFO L168 Benchmark]: RCFGBuilder took 1344.77 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 165.9 MB in the beginning and 182.1 MB in the end (delta: -16.2 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. [2020-07-21 11:31:11,359 INFO L168 Benchmark]: TraceAbstraction took 14325.50 ms. Allocated memory was 238.0 MB in the beginning and 471.3 MB in the end (delta: 233.3 MB). Free memory was 182.1 MB in the beginning and 110.3 MB in the end (delta: 71.8 MB). Peak memory consumption was 305.1 MB. Max. memory is 7.1 GB. [2020-07-21 11:31:11,363 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 145.2 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 734.95 ms. Allocated memory was 145.2 MB in the beginning and 205.0 MB in the end (delta: 59.8 MB). Free memory was 99.6 MB in the beginning and 170.7 MB in the end (delta: -71.1 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.08 ms. Allocated memory is still 205.0 MB. Free memory was 170.7 MB in the beginning and 165.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1344.77 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 165.9 MB in the beginning and 182.1 MB in the end (delta: -16.2 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14325.50 ms. Allocated memory was 238.0 MB in the beginning and 471.3 MB in the end (delta: 233.3 MB). Free memory was 182.1 MB in the beginning and 110.3 MB in the end (delta: 71.8 MB). Peak memory consumption was 305.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 154]: 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: 582]: Loop Invariant Derived loop invariant: (((((((!(23 <= \old(a1)) || (a19 <= 9 && (9 <= a19 || 23 <= a1))) || !(\old(a1) <= 23)) || a19 <= 6) || !(\old(a10) <= 0)) || !(9 <= \old(a19))) || a10 <= 2) || !(\old(a19) <= 9)) || (a19 <= 8 && 4 <= a10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.1s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 424 SDtfs, 1913 SDslu, 210 SDs, 0 SdLazy, 5619 SolverSat, 1050 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2465 GetRequests, 2425 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1339occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 799 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 71 PreInvPairs, 123 NumberOfFragments, 271 HoareAnnotationTreeSize, 71 FomulaSimplifications, 12364 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3027 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1882 NumberOfCodeBlocks, 1882 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2440 ConstructedInterpolants, 0 QuantifiedInterpolants, 1449352 SizeOfPredicates, 13 NumberOfNonLiveVariables, 3264 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 1423/1431 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...