/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/Problem02_label55.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 11:36:44,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 11:36:44,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 11:36:44,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 11:36:44,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 11:36:44,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 11:36:44,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 11:36:44,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 11:36:44,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 11:36:44,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 11:36:44,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 11:36:44,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 11:36:44,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 11:36:44,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 11:36:44,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 11:36:44,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 11:36:44,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 11:36:44,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 11:36:44,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 11:36:44,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 11:36:44,848 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 11:36:44,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 11:36:44,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 11:36:44,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 11:36:44,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 11:36:44,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 11:36:44,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 11:36:44,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 11:36:44,877 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 [2020-07-20 11:36:44,902 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 11:36:44,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 11:36:44,905 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 11:36:44,905 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 11:36:44,905 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 11:36:44,906 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 11:36:44,906 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 11:36:44,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 11:36:44,906 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 11:36:44,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 11:36:44,908 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 11:36:44,908 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 11:36:44,908 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 11:36:44,909 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 11:36:44,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 11:36:44,909 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 11:36:44,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 11:36:44,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 11:36:44,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 11:36:44,910 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 11:36:44,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 11:36:44,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:36:44,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 11:36:44,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 11:36:44,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 11:36:44,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 11:36:44,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:44,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 11:36:44,912 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 11:36:44,912 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 [2020-07-20 11:36:45,241 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 11:36:45,253 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 11:36:45,256 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 11:36:45,258 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 11:36:45,258 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 11:36:45,259 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label55.c [2020-07-20 11:36:45,329 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d0f21f06/f5d7d3e8fbed4e77816f31da225979a1/FLAG0abf600ca [2020-07-20 11:36:45,928 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 11:36:45,929 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label55.c [2020-07-20 11:36:45,948 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d0f21f06/f5d7d3e8fbed4e77816f31da225979a1/FLAG0abf600ca [2020-07-20 11:36:46,120 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d0f21f06/f5d7d3e8fbed4e77816f31da225979a1 [2020-07-20 11:36:46,128 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 11:36:46,131 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 11:36:46,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 11:36:46,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 11:36:46,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 11:36:46,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:36:46" (1/1) ... [2020-07-20 11:36:46,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61c18cf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:46, skipping insertion in model container [2020-07-20 11:36:46,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:36:46" (1/1) ... [2020-07-20 11:36:46,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 11:36:46,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 11:36:46,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:36:46,652 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 11:36:46,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:36:46,885 INFO L208 MainTranslator]: Completed translation [2020-07-20 11:36:46,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:46 WrapperNode [2020-07-20 11:36:46,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 11:36:46,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 11:36:46,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 11:36:46,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 11:36:46,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:46" (1/1) ... [2020-07-20 11:36:46,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:46" (1/1) ... [2020-07-20 11:36:46,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:46" (1/1) ... [2020-07-20 11:36:46,917 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:46" (1/1) ... [2020-07-20 11:36:46,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:46" (1/1) ... [2020-07-20 11:36:46,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:46" (1/1) ... [2020-07-20 11:36:46,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:46" (1/1) ... [2020-07-20 11:36:46,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 11:36:46,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 11:36:46,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 11:36:46,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 11:36:46,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:46" (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 [2020-07-20 11:36:47,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 11:36:47,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 11:36:47,085 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 11:36:47,085 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 11:36:47,085 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 11:36:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 11:36:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 11:36:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 11:36:47,087 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 11:36:47,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 11:36:47,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 11:36:48,317 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 11:36:48,318 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 11:36:48,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:36:48 BoogieIcfgContainer [2020-07-20 11:36:48,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 11:36:48,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 11:36:48,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 11:36:48,334 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 11:36:48,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:36:46" (1/3) ... [2020-07-20 11:36:48,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb5c6ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:36:48, skipping insertion in model container [2020-07-20 11:36:48,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:46" (2/3) ... [2020-07-20 11:36:48,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb5c6ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:36:48, skipping insertion in model container [2020-07-20 11:36:48,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:36:48" (3/3) ... [2020-07-20 11:36:48,343 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label55.c [2020-07-20 11:36:48,355 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 11:36:48,369 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 11:36:48,383 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 11:36:48,417 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 11:36:48,418 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 11:36:48,418 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 11:36:48,418 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 11:36:48,418 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 11:36:48,419 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 11:36:48,419 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 11:36:48,419 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 11:36:48,440 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 11:36:48,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-07-20 11:36:48,453 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:48,454 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:48,455 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:48,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:48,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1666327721, now seen corresponding path program 1 times [2020-07-20 11:36:48,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:48,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [714283185] [2020-07-20 11:36:48,471 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 [2020-07-20 11:36:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:48,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:36:48,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:48,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:36:48,783 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:36:48,785 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [714283185] [2020-07-20 11:36:48,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:36:48,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:36:48,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592909163] [2020-07-20 11:36:48,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:36:48,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:48,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:36:48,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:48,820 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 11:36:49,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:49,855 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-20 11:36:49,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:36:49,857 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-07-20 11:36:49,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:49,873 INFO L225 Difference]: With dead ends: 619 [2020-07-20 11:36:49,874 INFO L226 Difference]: Without dead ends: 321 [2020-07-20 11:36:49,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:49,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-20 11:36:49,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-20 11:36:49,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-20 11:36:49,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-20 11:36:49,951 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 111 [2020-07-20 11:36:49,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:49,952 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-20 11:36:49,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:36:49,952 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-20 11:36:49,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-20 11:36:49,957 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:49,957 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:50,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:50,163 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:50,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:50,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1096762264, now seen corresponding path program 1 times [2020-07-20 11:36:50,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:50,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [70065805] [2020-07-20 11:36:50,166 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 [2020-07-20 11:36:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:50,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 11:36:50,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:50,333 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 11:36:50,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:50,475 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 11:36:50,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [70065805] [2020-07-20 11:36:50,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 11:36:50,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-20 11:36:50,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219683077] [2020-07-20 11:36:50,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 11:36:50,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:50,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 11:36:50,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:36:50,483 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 4 states. [2020-07-20 11:36:51,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:51,166 INFO L93 Difference]: Finished difference Result 941 states and 1256 transitions. [2020-07-20 11:36:51,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 11:36:51,166 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 120 [2020-07-20 11:36:51,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:51,173 INFO L225 Difference]: With dead ends: 941 [2020-07-20 11:36:51,173 INFO L226 Difference]: Without dead ends: 628 [2020-07-20 11:36:51,175 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 232 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:36:51,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2020-07-20 11:36:51,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2020-07-20 11:36:51,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2020-07-20 11:36:51,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 815 transitions. [2020-07-20 11:36:51,231 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 815 transitions. Word has length 120 [2020-07-20 11:36:51,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:51,232 INFO L479 AbstractCegarLoop]: Abstraction has 628 states and 815 transitions. [2020-07-20 11:36:51,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 11:36:51,232 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 815 transitions. [2020-07-20 11:36:51,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-20 11:36:51,243 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:51,243 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:51,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:51,458 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:51,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:51,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1858974237, now seen corresponding path program 1 times [2020-07-20 11:36:51,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:51,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1239774735] [2020-07-20 11:36:51,460 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 [2020-07-20 11:36:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:51,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:51,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:51,637 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 11:36:51,638 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:36:51,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1239774735] [2020-07-20 11:36:51,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:36:51,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:36:51,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683204350] [2020-07-20 11:36:51,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:36:51,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:51,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:36:51,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:51,643 INFO L87 Difference]: Start difference. First operand 628 states and 815 transitions. Second operand 3 states. [2020-07-20 11:36:52,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:52,378 INFO L93 Difference]: Finished difference Result 1543 states and 2083 transitions. [2020-07-20 11:36:52,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:36:52,379 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2020-07-20 11:36:52,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:52,391 INFO L225 Difference]: With dead ends: 1543 [2020-07-20 11:36:52,391 INFO L226 Difference]: Without dead ends: 921 [2020-07-20 11:36:52,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:52,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2020-07-20 11:36:52,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 919. [2020-07-20 11:36:52,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2020-07-20 11:36:52,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1209 transitions. [2020-07-20 11:36:52,450 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1209 transitions. Word has length 128 [2020-07-20 11:36:52,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:52,451 INFO L479 AbstractCegarLoop]: Abstraction has 919 states and 1209 transitions. [2020-07-20 11:36:52,451 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:36:52,451 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1209 transitions. [2020-07-20 11:36:52,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-07-20 11:36:52,456 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:52,457 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:52,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:52,671 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:52,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:52,672 INFO L82 PathProgramCache]: Analyzing trace with hash 459938663, now seen corresponding path program 1 times [2020-07-20 11:36:52,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:52,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1497791171] [2020-07-20 11:36:52,673 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 [2020-07-20 11:36:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:52,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:36:52,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:52,859 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 11:36:52,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:52,943 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 11:36:52,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1497791171] [2020-07-20 11:36:52,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:36:52,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-07-20 11:36:52,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120214617] [2020-07-20 11:36:52,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:36:52,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:52,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:36:52,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:36:52,946 INFO L87 Difference]: Start difference. First operand 919 states and 1209 transitions. Second operand 5 states. [2020-07-20 11:36:53,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:53,760 INFO L93 Difference]: Finished difference Result 2773 states and 3861 transitions. [2020-07-20 11:36:53,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 11:36:53,768 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 134 [2020-07-20 11:36:53,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:53,785 INFO L225 Difference]: With dead ends: 2773 [2020-07-20 11:36:53,786 INFO L226 Difference]: Without dead ends: 1860 [2020-07-20 11:36:53,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 262 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:36:53,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2020-07-20 11:36:53,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1828. [2020-07-20 11:36:53,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1828 states. [2020-07-20 11:36:53,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1828 states to 1828 states and 2448 transitions. [2020-07-20 11:36:53,885 INFO L78 Accepts]: Start accepts. Automaton has 1828 states and 2448 transitions. Word has length 134 [2020-07-20 11:36:53,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:53,885 INFO L479 AbstractCegarLoop]: Abstraction has 1828 states and 2448 transitions. [2020-07-20 11:36:53,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:36:53,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1828 states and 2448 transitions. [2020-07-20 11:36:53,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-20 11:36:53,892 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:53,892 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:54,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:54,095 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:54,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:54,096 INFO L82 PathProgramCache]: Analyzing trace with hash 349804708, now seen corresponding path program 2 times [2020-07-20 11:36:54,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:54,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2076453569] [2020-07-20 11:36:54,097 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 [2020-07-20 11:36:54,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:54,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:54,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:54,259 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 11:36:54,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:54,354 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 11:36:54,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2076453569] [2020-07-20 11:36:54,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:36:54,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:36:54,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468658551] [2020-07-20 11:36:54,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:36:54,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:54,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:36:54,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:36:54,358 INFO L87 Difference]: Start difference. First operand 1828 states and 2448 transitions. Second operand 7 states. [2020-07-20 11:36:55,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:55,977 INFO L93 Difference]: Finished difference Result 4385 states and 6475 transitions. [2020-07-20 11:36:55,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 11:36:55,977 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 137 [2020-07-20 11:36:55,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:56,001 INFO L225 Difference]: With dead ends: 4385 [2020-07-20 11:36:56,002 INFO L226 Difference]: Without dead ends: 2563 [2020-07-20 11:36:56,011 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 271 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-07-20 11:36:56,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2020-07-20 11:36:56,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 2468. [2020-07-20 11:36:56,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2468 states. [2020-07-20 11:36:56,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2468 states to 2468 states and 3122 transitions. [2020-07-20 11:36:56,116 INFO L78 Accepts]: Start accepts. Automaton has 2468 states and 3122 transitions. Word has length 137 [2020-07-20 11:36:56,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:56,117 INFO L479 AbstractCegarLoop]: Abstraction has 2468 states and 3122 transitions. [2020-07-20 11:36:56,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:36:56,117 INFO L276 IsEmpty]: Start isEmpty. Operand 2468 states and 3122 transitions. [2020-07-20 11:36:56,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-07-20 11:36:56,124 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:56,125 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:56,338 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:56,339 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:56,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:56,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1845831279, now seen corresponding path program 1 times [2020-07-20 11:36:56,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:56,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [722450479] [2020-07-20 11:36:56,341 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 [2020-07-20 11:36:56,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:56,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:56,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:56,512 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 11:36:56,512 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:36:56,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [722450479] [2020-07-20 11:36:56,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:36:56,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:36:56,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092038929] [2020-07-20 11:36:56,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:36:56,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:56,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:36:56,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:56,517 INFO L87 Difference]: Start difference. First operand 2468 states and 3122 transitions. Second operand 3 states. [2020-07-20 11:36:57,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:57,185 INFO L93 Difference]: Finished difference Result 5522 states and 7106 transitions. [2020-07-20 11:36:57,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:36:57,186 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2020-07-20 11:36:57,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:57,200 INFO L225 Difference]: With dead ends: 5522 [2020-07-20 11:36:57,201 INFO L226 Difference]: Without dead ends: 3060 [2020-07-20 11:36:57,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:57,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3060 states. [2020-07-20 11:36:57,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3060 to 3054. [2020-07-20 11:36:57,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3054 states. [2020-07-20 11:36:57,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3054 states to 3054 states and 3801 transitions. [2020-07-20 11:36:57,295 INFO L78 Accepts]: Start accepts. Automaton has 3054 states and 3801 transitions. Word has length 138 [2020-07-20 11:36:57,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:57,296 INFO L479 AbstractCegarLoop]: Abstraction has 3054 states and 3801 transitions. [2020-07-20 11:36:57,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:36:57,296 INFO L276 IsEmpty]: Start isEmpty. Operand 3054 states and 3801 transitions. [2020-07-20 11:36:57,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-20 11:36:57,305 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:57,305 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:57,519 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:57,520 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:57,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:57,521 INFO L82 PathProgramCache]: Analyzing trace with hash -161267733, now seen corresponding path program 1 times [2020-07-20 11:36:57,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:57,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602552622] [2020-07-20 11:36:57,522 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 [2020-07-20 11:36:57,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:57,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 11:36:57,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:57,632 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:36:57,632 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:36:57,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602552622] [2020-07-20 11:36:57,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:36:57,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 11:36:57,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340381004] [2020-07-20 11:36:57,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:36:57,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:57,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:36:57,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:36:57,635 INFO L87 Difference]: Start difference. First operand 3054 states and 3801 transitions. Second operand 5 states. [2020-07-20 11:36:58,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:58,548 INFO L93 Difference]: Finished difference Result 8247 states and 10820 transitions. [2020-07-20 11:36:58,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:36:58,549 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-07-20 11:36:58,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:58,580 INFO L225 Difference]: With dead ends: 8247 [2020-07-20 11:36:58,581 INFO L226 Difference]: Without dead ends: 5199 [2020-07-20 11:36:58,593 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-20 11:36:58,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5199 states. [2020-07-20 11:36:58,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5199 to 5127. [2020-07-20 11:36:58,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5127 states. [2020-07-20 11:36:58,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 6247 transitions. [2020-07-20 11:36:58,778 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 6247 transitions. Word has length 142 [2020-07-20 11:36:58,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:58,778 INFO L479 AbstractCegarLoop]: Abstraction has 5127 states and 6247 transitions. [2020-07-20 11:36:58,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:36:58,778 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 6247 transitions. [2020-07-20 11:36:58,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-07-20 11:36:58,793 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:58,794 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-20 11:36:59,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:59,007 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:59,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:59,007 INFO L82 PathProgramCache]: Analyzing trace with hash 455788955, now seen corresponding path program 1 times [2020-07-20 11:36:59,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:59,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1932406533] [2020-07-20 11:36:59,008 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 [2020-07-20 11:36:59,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:59,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:59,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:59,166 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-20 11:36:59,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:59,263 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 114 proven. 36 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-20 11:36:59,263 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1932406533] [2020-07-20 11:36:59,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:36:59,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 11:36:59,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808951435] [2020-07-20 11:36:59,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 11:36:59,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:59,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 11:36:59,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:36:59,266 INFO L87 Difference]: Start difference. First operand 5127 states and 6247 transitions. Second operand 6 states. [2020-07-20 11:36:59,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:59,842 INFO L93 Difference]: Finished difference Result 9839 states and 12352 transitions. [2020-07-20 11:36:59,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 11:36:59,842 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 211 [2020-07-20 11:36:59,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:59,865 INFO L225 Difference]: With dead ends: 9839 [2020-07-20 11:36:59,865 INFO L226 Difference]: Without dead ends: 4718 [2020-07-20 11:36:59,877 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 416 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:36:59,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4718 states. [2020-07-20 11:36:59,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4718 to 4652. [2020-07-20 11:36:59,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4652 states. [2020-07-20 11:36:59,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4652 states to 4652 states and 5508 transitions. [2020-07-20 11:36:59,998 INFO L78 Accepts]: Start accepts. Automaton has 4652 states and 5508 transitions. Word has length 211 [2020-07-20 11:36:59,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:59,999 INFO L479 AbstractCegarLoop]: Abstraction has 4652 states and 5508 transitions. [2020-07-20 11:36:59,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 11:36:59,999 INFO L276 IsEmpty]: Start isEmpty. Operand 4652 states and 5508 transitions. [2020-07-20 11:37:00,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-07-20 11:37:00,018 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:37:00,018 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:37:00,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:00,235 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:37:00,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:37:00,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1716455552, now seen corresponding path program 1 times [2020-07-20 11:37:00,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:37:00,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307591819] [2020-07-20 11:37:00,236 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 [2020-07-20 11:37:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:37:00,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:37:00,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:37:00,417 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 110 proven. 2 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2020-07-20 11:37:00,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:37:00,513 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 133 proven. 54 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-07-20 11:37:00,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307591819] [2020-07-20 11:37:00,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:37:00,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 11:37:00,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954926845] [2020-07-20 11:37:00,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 11:37:00,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:37:00,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 11:37:00,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:37:00,516 INFO L87 Difference]: Start difference. First operand 4652 states and 5508 transitions. Second operand 6 states. [2020-07-20 11:37:01,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:37:01,353 INFO L93 Difference]: Finished difference Result 8881 states and 10565 transitions. [2020-07-20 11:37:01,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:37:01,354 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 241 [2020-07-20 11:37:01,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:37:01,373 INFO L225 Difference]: With dead ends: 8881 [2020-07-20 11:37:01,373 INFO L226 Difference]: Without dead ends: 4379 [2020-07-20 11:37:01,386 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 478 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:37:01,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4379 states. [2020-07-20 11:37:01,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4379 to 4375. [2020-07-20 11:37:01,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4375 states. [2020-07-20 11:37:01,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4375 states to 4375 states and 5103 transitions. [2020-07-20 11:37:01,492 INFO L78 Accepts]: Start accepts. Automaton has 4375 states and 5103 transitions. Word has length 241 [2020-07-20 11:37:01,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:37:01,493 INFO L479 AbstractCegarLoop]: Abstraction has 4375 states and 5103 transitions. [2020-07-20 11:37:01,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 11:37:01,493 INFO L276 IsEmpty]: Start isEmpty. Operand 4375 states and 5103 transitions. [2020-07-20 11:37:01,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-07-20 11:37:01,507 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:37:01,508 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:37:01,721 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:01,722 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:37:01,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:37:01,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1657714952, now seen corresponding path program 1 times [2020-07-20 11:37:01,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:37:01,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1795825856] [2020-07-20 11:37:01,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:37:01,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:37:01,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:37:01,902 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 207 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-20 11:37:01,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:37:02,093 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 172 proven. 36 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-07-20 11:37:02,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1795825856] [2020-07-20 11:37:02,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:37:02,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:37:02,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748711504] [2020-07-20 11:37:02,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:37:02,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:37:02,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:37:02,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:37:02,096 INFO L87 Difference]: Start difference. First operand 4375 states and 5103 transitions. Second operand 7 states. [2020-07-20 11:37:03,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:37:03,373 INFO L93 Difference]: Finished difference Result 10612 states and 12330 transitions. [2020-07-20 11:37:03,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:37:03,379 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 245 [2020-07-20 11:37:03,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:37:03,404 INFO L225 Difference]: With dead ends: 10612 [2020-07-20 11:37:03,404 INFO L226 Difference]: Without dead ends: 6387 [2020-07-20 11:37:03,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 485 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:37:03,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6387 states. [2020-07-20 11:37:03,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6387 to 6097. [2020-07-20 11:37:03,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6097 states. [2020-07-20 11:37:03,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6097 states to 6097 states and 6840 transitions. [2020-07-20 11:37:03,550 INFO L78 Accepts]: Start accepts. Automaton has 6097 states and 6840 transitions. Word has length 245 [2020-07-20 11:37:03,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:37:03,550 INFO L479 AbstractCegarLoop]: Abstraction has 6097 states and 6840 transitions. [2020-07-20 11:37:03,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:37:03,551 INFO L276 IsEmpty]: Start isEmpty. Operand 6097 states and 6840 transitions. [2020-07-20 11:37:03,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-07-20 11:37:03,572 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:37:03,572 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:37:03,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:03,786 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:37:03,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:37:03,786 INFO L82 PathProgramCache]: Analyzing trace with hash -186224720, now seen corresponding path program 1 times [2020-07-20 11:37:03,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:37:03,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [703028628] [2020-07-20 11:37:03,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:37:03,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:37:03,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:37:04,034 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 228 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-20 11:37:04,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:37:04,160 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 186 proven. 36 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-07-20 11:37:04,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [703028628] [2020-07-20 11:37:04,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:37:04,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:37:04,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382424182] [2020-07-20 11:37:04,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:37:04,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:37:04,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:37:04,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:37:04,169 INFO L87 Difference]: Start difference. First operand 6097 states and 6840 transitions. Second operand 7 states. [2020-07-20 11:37:05,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:37:05,325 INFO L93 Difference]: Finished difference Result 11181 states and 12535 transitions. [2020-07-20 11:37:05,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 11:37:05,325 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 252 [2020-07-20 11:37:05,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:37:05,354 INFO L225 Difference]: With dead ends: 11181 [2020-07-20 11:37:05,355 INFO L226 Difference]: Without dead ends: 5503 [2020-07-20 11:37:05,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 499 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:37:05,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5503 states. [2020-07-20 11:37:05,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5503 to 5497. [2020-07-20 11:37:05,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5497 states. [2020-07-20 11:37:05,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5497 states to 5497 states and 6061 transitions. [2020-07-20 11:37:05,470 INFO L78 Accepts]: Start accepts. Automaton has 5497 states and 6061 transitions. Word has length 252 [2020-07-20 11:37:05,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:37:05,471 INFO L479 AbstractCegarLoop]: Abstraction has 5497 states and 6061 transitions. [2020-07-20 11:37:05,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:37:05,471 INFO L276 IsEmpty]: Start isEmpty. Operand 5497 states and 6061 transitions. [2020-07-20 11:37:05,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-07-20 11:37:05,486 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:37:05,486 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:37:05,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:05,701 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:37:05,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:37:05,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1332464188, now seen corresponding path program 1 times [2020-07-20 11:37:05,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:37:05,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1157664413] [2020-07-20 11:37:05,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:37:05,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 11:37:05,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:37:05,961 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 166 proven. 2 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2020-07-20 11:37:05,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:37:06,087 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 174 proven. 80 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2020-07-20 11:37:06,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1157664413] [2020-07-20 11:37:06,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:37:06,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:37:06,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033235923] [2020-07-20 11:37:06,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:37:06,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:37:06,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:37:06,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:37:06,091 INFO L87 Difference]: Start difference. First operand 5497 states and 6061 transitions. Second operand 7 states. [2020-07-20 11:37:07,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:37:07,204 INFO L93 Difference]: Finished difference Result 10238 states and 11289 transitions. [2020-07-20 11:37:07,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 11:37:07,210 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 277 [2020-07-20 11:37:07,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:37:07,210 INFO L225 Difference]: With dead ends: 10238 [2020-07-20 11:37:07,210 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 11:37:07,227 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:37:07,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 11:37:07,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 11:37:07,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 11:37:07,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 11:37:07,228 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 277 [2020-07-20 11:37:07,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:37:07,228 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 11:37:07,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:37:07,229 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 11:37:07,229 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 11:37:07,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:07,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 11:37:08,161 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 130 [2020-07-20 11:37:08,420 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 130 [2020-07-20 11:37:10,065 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 157 DAG size of output: 82 [2020-07-20 11:37:10,779 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 61 [2020-07-20 11:37:11,551 WARN L193 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 61 [2020-07-20 11:37:11,555 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:37:11,555 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|)) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-20 11:37:11,556 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:37:11,556 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,556 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,556 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,556 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,556 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,557 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 11:37:11,557 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 11:37:11,557 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 11:37:11,557 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 11:37:11,557 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 11:37:11,558 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 11:37:11,558 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 11:37:11,558 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 11:37:11,558 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 11:37:11,558 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 11:37:11,558 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 11:37:11,558 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 11:37:11,558 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 11:37:11,558 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,558 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,558 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,558 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,559 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 11:37:11,559 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,559 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 11:37:11,559 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 11:37:11,559 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 11:37:11,559 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 11:37:11,559 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 11:37:11,559 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 11:37:11,559 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 11:37:11,559 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 11:37:11,559 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 11:37:11,560 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 11:37:11,560 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 11:37:11,560 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 11:37:11,560 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 11:37:11,560 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 11:37:11,560 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 11:37:11,560 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,561 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,561 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,561 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,561 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,563 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 487) no Hoare annotation was computed. [2020-07-20 11:37:11,563 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 11:37:11,564 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 11:37:11,564 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 11:37:11,564 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 11:37:11,564 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 11:37:11,564 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 11:37:11,564 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 11:37:11,564 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 11:37:11,564 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 11:37:11,565 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 11:37:11,565 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 11:37:11,565 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,565 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,565 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,565 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,565 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,565 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 11:37:11,565 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 11:37:11,565 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 11:37:11,566 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 11:37:11,566 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 11:37:11,566 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 11:37:11,566 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 11:37:11,566 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 11:37:11,566 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 11:37:11,566 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 11:37:11,566 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 11:37:11,566 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 11:37:11,567 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 11:37:11,567 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,567 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,567 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,567 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,567 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,567 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 11:37:11,567 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 11:37:11,568 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 11:37:11,568 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 11:37:11,568 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 11:37:11,568 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 11:37:11,568 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 11:37:11,568 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 11:37:11,568 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 11:37:11,568 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 11:37:11,569 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 11:37:11,569 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 11:37:11,569 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 11:37:11,569 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 11:37:11,569 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 11:37:11,569 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 11:37:11,569 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,569 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,570 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,570 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,570 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 11:37:11,570 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,570 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 11:37:11,570 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,570 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 11:37:11,570 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 11:37:11,571 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 11:37:11,571 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,571 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,571 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 11:37:11,571 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 11:37:11,571 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 11:37:11,571 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 11:37:11,571 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 11:37:11,571 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 11:37:11,572 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 11:37:11,572 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 11:37:11,572 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 11:37:11,572 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 11:37:11,572 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 11:37:11,572 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,572 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,572 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,572 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,573 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,573 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,573 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 11:37:11,573 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 11:37:11,573 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 11:37:11,573 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 11:37:11,573 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 11:37:11,573 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 11:37:11,574 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 11:37:11,574 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 11:37:11,574 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 11:37:11,576 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 11:37:11,576 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 11:37:11,576 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,576 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,576 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,576 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,576 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,576 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,577 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 11:37:11,577 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 11:37:11,577 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 11:37:11,577 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 11:37:11,577 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 11:37:11,577 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 11:37:11,577 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 11:37:11,577 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 11:37:11,578 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 11:37:11,578 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 11:37:11,578 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 11:37:11,578 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 11:37:11,578 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 11:37:11,578 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 11:37:11,578 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,578 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,578 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,580 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse25 (<= ~a11~0 0))) (let ((.cse18 (= 1 ~a25~0)) (.cse21 (<= ~a17~0 |old(~a17~0)|)) (.cse22 (or .cse25 (< 0 |old(~a11~0)|))) (.cse23 (<= ~a25~0 |old(~a25~0)|)) (.cse26 (<= ~a28~0 |old(~a28~0)|)) (.cse13 (<= ~a17~0 8)) (.cse14 (<= 8 ~a17~0)) (.cse16 (= ~a19~0 |old(~a19~0)|)) (.cse17 (<= |old(~a28~0)| ~a28~0)) (.cse27 (= ~a25~0 |old(~a25~0)|))) (let ((.cse9 (and .cse26 .cse13 .cse14 .cse16 .cse17 .cse27)) (.cse1 (and .cse21 .cse26 .cse22 .cse23 .cse16 .cse17)) (.cse19 (and .cse25 .cse26 .cse13 .cse14 .cse16 .cse17 .cse18)) (.cse5 (not (<= |old(~a17~0)| 7))) (.cse24 (<= ~a28~0 9)) (.cse12 (not (= 1 |old(~a25~0)|))) (.cse11 (not (<= |old(~a28~0)| 7))) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse2 (not (<= |old(~a28~0)| 10))) (.cse3 (not (<= 9 |old(~a28~0)|))) (.cse15 (<= ~a28~0 10)) (.cse6 (not (<= |old(~a28~0)| 9))) (.cse7 (not (<= 8 |old(~a17~0)|))) (.cse4 (not (<= |old(~a25~0)| 0))) (.cse8 (not (<= |old(~a19~0)| 0))) (.cse10 (not (<= |old(~a17~0)| 8))) (.cse20 (not (<= |old(~a11~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse7 .cse4 .cse8 .cse9 .cse10) (or .cse11 .cse7 .cse8 .cse9 .cse10) (or .cse0 .cse2 .cse3 .cse7 .cse12 .cse10 (and .cse13 .cse14 .cse15 .cse16 .cse17 .cse18)) (or .cse0 .cse1 .cse11 .cse5) (or .cse0 .cse7 .cse12 .cse19 .cse10 .cse20) (or .cse2 .cse3 .cse4 .cse8 .cse5 (and .cse21 .cse22 .cse15 .cse23 .cse16 .cse17)) (or .cse2 .cse3 .cse7 .cse12 .cse8 .cse19 .cse10 .cse20) (or .cse0 .cse3 .cse6 .cse4 .cse24 .cse10) (or .cse0 .cse11 .cse4 (and .cse25 .cse26 .cse13 .cse16 .cse17 .cse27) .cse10 .cse20) (or .cse0 .cse11 .cse7 .cse12 (and .cse26 .cse13 .cse14 .cse16 .cse17 .cse18) .cse10) (or .cse3 .cse6 .cse8 .cse5 (and .cse21 .cse22 .cse24 .cse23 .cse16 .cse17)) (or .cse0 .cse3 .cse6 .cse24 .cse7 .cse12 .cse10) (or .cse25 .cse11 .cse7 .cse8 .cse10 .cse20) (or .cse0 .cse2 .cse3 .cse7 .cse4 (and .cse22 .cse13 .cse14 .cse15 .cse16 .cse17 .cse27) .cse10) (or .cse25 .cse6 .cse7 .cse4 .cse8 .cse10 .cse20))))) [2020-07-20 11:37:11,580 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,580 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,581 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,581 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 11:37:11,581 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 11:37:11,581 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 11:37:11,581 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 11:37:11,581 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 11:37:11,581 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 11:37:11,581 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 11:37:11,582 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 11:37:11,582 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 11:37:11,582 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 11:37:11,582 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 11:37:11,582 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 11:37:11,582 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 11:37:11,582 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,582 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,582 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,583 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,583 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,583 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,583 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 11:37:11,583 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 11:37:11,583 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 11:37:11,583 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 11:37:11,583 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 11:37:11,583 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 11:37:11,584 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 11:37:11,584 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 11:37:11,584 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 11:37:11,584 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 11:37:11,584 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 11:37:11,584 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 11:37:11,584 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 11:37:11,584 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 11:37:11,585 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 11:37:11,585 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 11:37:11,585 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,585 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,585 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,585 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,585 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:11,585 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 11:37:11,585 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 11:37:11,585 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 11:37:11,586 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 11:37:11,586 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 11:37:11,586 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 11:37:11,586 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 11:37:11,586 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 11:37:11,586 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 11:37:11,586 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 11:37:11,586 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 11:37:11,586 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 11:37:11,587 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 11:37:11,587 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 11:37:11,587 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 11:37:11,587 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 11:37:11,587 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 11:37:11,587 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 11:37:11,587 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 11:37:11,587 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:37:11,587 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a25~0 0) (<= ~a28~0 7)) [2020-07-20 11:37:11,588 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 11:37:11,588 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:37:11,588 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-20 11:37:11,588 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse11 (<= 1 ~a19~0)) (.cse12 (<= ~a19~0 |old(~a19~0)|)) (.cse15 (<= ~a28~0 9)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= ~a11~0 0)) (.cse9 (<= 8 ~a17~0)) (.cse8 (<= ~a19~0 0)) (.cse13 (= 1 ~a25~0)) (.cse5 (<= ~a17~0 7)) (.cse10 (<= ~a28~0 7)) (.cse0 (= 1 ~a19~0)) (.cse14 (<= ~a17~0 8)) (.cse3 (<= ~a28~0 10)) (.cse4 (<= ~a25~0 0)) (.cse6 (< 7 |old(~a17~0)|)) (.cse7 (<= 9 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 (<= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse1 .cse9 .cse8 .cse10) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse2 .cse9 .cse11 .cse12 .cse13) (and .cse0 .cse1 .cse14 .cse9 .cse10 .cse13) (and .cse1 .cse9 .cse15 .cse4 .cse8) (and .cse1 .cse9 .cse3 .cse11 .cse12 .cse7 .cse13) (and .cse15 .cse5 .cse6 .cse8 .cse7) (not (<= |old(~a11~0)| 0)) (and .cse1 .cse2 .cse9 .cse3 .cse7 .cse8 .cse13) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse14 .cse5 .cse6 .cse10) (and .cse0 .cse14 .cse3 .cse4 .cse6 .cse7) (not (<= |old(~a17~0)| 8)))) [2020-07-20 11:37:11,588 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 11:37:11,589 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 11:37:11,589 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse11 (<= 1 ~a19~0)) (.cse12 (<= ~a19~0 |old(~a19~0)|)) (.cse15 (<= ~a28~0 9)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= ~a11~0 0)) (.cse9 (<= 8 ~a17~0)) (.cse8 (<= ~a19~0 0)) (.cse13 (= 1 ~a25~0)) (.cse5 (<= ~a17~0 7)) (.cse10 (<= ~a28~0 7)) (.cse0 (= 1 ~a19~0)) (.cse14 (<= ~a17~0 8)) (.cse3 (<= ~a28~0 10)) (.cse4 (<= ~a25~0 0)) (.cse6 (< 7 |old(~a17~0)|)) (.cse7 (<= 9 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 (<= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse1 .cse9 .cse8 .cse10) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse2 .cse9 .cse11 .cse12 .cse13) (and .cse0 .cse1 .cse14 .cse9 .cse10 .cse13) (and .cse1 .cse9 .cse15 .cse4 .cse8) (and .cse1 .cse9 .cse3 .cse11 .cse12 .cse7 .cse13) (and .cse15 .cse5 .cse6 .cse8 .cse7) (not (<= |old(~a11~0)| 0)) (and .cse1 .cse2 .cse9 .cse3 .cse7 .cse8 .cse13) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse14 .cse5 .cse6 .cse10) (and .cse0 .cse14 .cse3 .cse4 .cse6 .cse7) (not (<= |old(~a17~0)| 8)))) [2020-07-20 11:37:11,589 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 11:37:11,589 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 11:37:11,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:37:11 BoogieIcfgContainer [2020-07-20 11:37:11,624 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 11:37:11,626 INFO L168 Benchmark]: Toolchain (without parser) took 25496.23 ms. Allocated memory was 137.9 MB in the beginning and 697.3 MB in the end (delta: 559.4 MB). Free memory was 99.8 MB in the beginning and 477.5 MB in the end (delta: -377.8 MB). Peak memory consumption was 518.1 MB. Max. memory is 7.1 GB. [2020-07-20 11:37:11,627 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 137.9 MB. Free memory is still 119.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 11:37:11,628 INFO L168 Benchmark]: CACSL2BoogieTranslator took 755.21 ms. Allocated memory was 137.9 MB in the beginning and 203.4 MB in the end (delta: 65.5 MB). Free memory was 99.3 MB in the beginning and 170.5 MB in the end (delta: -71.2 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. [2020-07-20 11:37:11,628 INFO L168 Benchmark]: Boogie Preprocessor took 104.23 ms. Allocated memory is still 203.4 MB. Free memory was 170.5 MB in the beginning and 165.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-20 11:37:11,629 INFO L168 Benchmark]: RCFGBuilder took 1337.57 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 165.4 MB in the beginning and 182.2 MB in the end (delta: -16.8 MB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. [2020-07-20 11:37:11,630 INFO L168 Benchmark]: TraceAbstraction took 23293.73 ms. Allocated memory was 235.9 MB in the beginning and 697.3 MB in the end (delta: 461.4 MB). Free memory was 180.4 MB in the beginning and 477.5 MB in the end (delta: -297.1 MB). Peak memory consumption was 500.7 MB. Max. memory is 7.1 GB. [2020-07-20 11:37:11,633 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 137.9 MB. Free memory is still 119.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 755.21 ms. Allocated memory was 137.9 MB in the beginning and 203.4 MB in the end (delta: 65.5 MB). Free memory was 99.3 MB in the beginning and 170.5 MB in the end (delta: -71.2 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.23 ms. Allocated memory is still 203.4 MB. Free memory was 170.5 MB in the beginning and 165.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1337.57 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 165.4 MB in the beginning and 182.2 MB in the end (delta: -16.8 MB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23293.73 ms. Allocated memory was 235.9 MB in the beginning and 697.3 MB in the end (delta: 461.4 MB). Free memory was 180.4 MB in the beginning and 477.5 MB in the end (delta: -297.1 MB). Peak memory consumption was 500.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 487]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((((((!(1 == \old(a19)) || ((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a28 <= \old(a28)) && a25 == \old(a25))) || (((((a28 <= 10 && a25 <= 0) && a17 <= 7) && 7 < \old(a17)) && 9 <= a28) && a19 <= 0)) || (((a17 <= \old(a17) && 8 <= a17) && a19 <= 0) && a28 <= 7)) || !(\old(a28) <= 7)) || (((((a17 <= \old(a17) && a11 <= 0) && 8 <= a17) && 1 <= a19) && a19 <= \old(a19)) && 1 == a25)) || (((((1 == a19 && a17 <= \old(a17)) && a17 <= 8) && 8 <= a17) && a28 <= 7) && 1 == a25)) || ((((a17 <= \old(a17) && 8 <= a17) && a28 <= 9) && a25 <= 0) && a19 <= 0)) || ((((((a17 <= \old(a17) && 8 <= a17) && a28 <= 10) && 1 <= a19) && a19 <= \old(a19)) && 9 <= a28) && 1 == a25)) || ((((a28 <= 9 && a17 <= 7) && 7 < \old(a17)) && a19 <= 0) && 9 <= a28)) || !(\old(a11) <= 0)) || ((((((a17 <= \old(a17) && a11 <= 0) && 8 <= a17) && a28 <= 10) && 9 <= a28) && a19 <= 0) && 1 == a25)) || !(\old(a25) <= 0)) || ((((1 == a19 && a17 <= 8) && a17 <= 7) && 7 < \old(a17)) && a28 <= 7)) || (((((1 == a19 && a17 <= 8) && a28 <= 10) && a25 <= 0) && 7 < \old(a17)) && 9 <= a28)) || !(\old(a17) <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.0s, OverallIterations: 12, TraceHistogramMax: 6, AutomataDifference: 11.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 977 SDtfs, 5524 SDslu, 662 SDs, 0 SdLazy, 8262 SolverSat, 1178 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3774 GetRequests, 3702 SyntacticMatches, 14 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6097occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 575 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 266 PreInvPairs, 342 NumberOfFragments, 1130 HoareAnnotationTreeSize, 266 FomulaSimplifications, 8585 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4842 FormulaSimplificationTreeSizeReductionInter, 3.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 2136 NumberOfCodeBlocks, 2136 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 3733 ConstructedInterpolants, 0 QuantifiedInterpolants, 1402655 SizeOfPredicates, 15 NumberOfNonLiveVariables, 5517 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 20 InterpolantComputations, 5 PerfectInterpolantSequences, 2597/2863 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...