/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label40.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 22:05:03,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 22:05:03,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 22:05:03,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 22:05:03,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 22:05:03,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 22:05:03,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 22:05:03,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 22:05:03,886 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 22:05:03,887 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 22:05:03,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 22:05:03,889 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 22:05:03,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 22:05:03,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 22:05:03,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 22:05:03,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 22:05:03,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 22:05:03,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 22:05:03,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 22:05:03,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 22:05:03,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 22:05:03,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 22:05:03,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 22:05:03,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 22:05:03,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 22:05:03,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 22:05:03,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 22:05:03,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 22:05:03,928 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 22:05:03,950 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 22:05:03,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 22:05:03,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 22:05:03,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 22:05:03,953 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 22:05:03,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 22:05:03,954 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 22:05:03,954 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 22:05:03,954 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 22:05:03,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 22:05:03,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 22:05:03,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 22:05:03,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 22:05:03,956 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 22:05:03,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 22:05:03,956 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 22:05:03,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 22:05:03,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 22:05:03,957 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 22:05:03,957 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 22:05:03,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 22:05:03,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 22:05:03,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 22:05:03,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 22:05:03,958 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 22:05:03,958 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 22:05:03,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:03,959 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 22:05:03,959 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 22:05:03,959 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 22:05:04,242 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 22:05:04,255 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 22:05:04,259 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 22:05:04,260 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 22:05:04,260 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 22:05:04,261 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label40.c [2020-07-20 22:05:04,336 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf1421f2b/770a0550a7b143489d4bd473e1d0733a/FLAG1aed6c939 [2020-07-20 22:05:04,921 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 22:05:04,922 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label40.c [2020-07-20 22:05:04,934 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf1421f2b/770a0550a7b143489d4bd473e1d0733a/FLAG1aed6c939 [2020-07-20 22:05:05,188 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf1421f2b/770a0550a7b143489d4bd473e1d0733a [2020-07-20 22:05:05,199 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 22:05:05,202 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 22:05:05,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 22:05:05,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 22:05:05,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 22:05:05,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:05:05" (1/1) ... [2020-07-20 22:05:05,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c612bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:05:05, skipping insertion in model container [2020-07-20 22:05:05,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:05:05" (1/1) ... [2020-07-20 22:05:05,219 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 22:05:05,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 22:05:05,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:05:05,868 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 22:05:05,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:05:05,999 INFO L208 MainTranslator]: Completed translation [2020-07-20 22:05:05,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:05:05 WrapperNode [2020-07-20 22:05:06,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 22:05:06,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 22:05:06,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 22:05:06,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 22:05:06,011 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:05:05" (1/1) ... [2020-07-20 22:05:06,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:05:05" (1/1) ... [2020-07-20 22:05:06,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:05:05" (1/1) ... [2020-07-20 22:05:06,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:05:05" (1/1) ... [2020-07-20 22:05:06,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:05:05" (1/1) ... [2020-07-20 22:05:06,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:05:05" (1/1) ... [2020-07-20 22:05:06,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:05:05" (1/1) ... [2020-07-20 22:05:06,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 22:05:06,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 22:05:06,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 22:05:06,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 22:05:06,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:05:05" (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 22:05:06,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 22:05:06,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 22:05:06,170 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 22:05:06,170 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 22:05:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 22:05:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 22:05:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 22:05:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 22:05:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 22:05:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 22:05:06,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 22:05:07,367 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 22:05:07,367 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 22:05:07,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:05:07 BoogieIcfgContainer [2020-07-20 22:05:07,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 22:05:07,381 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 22:05:07,381 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 22:05:07,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 22:05:07,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:05:05" (1/3) ... [2020-07-20 22:05:07,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f8c2ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:05:07, skipping insertion in model container [2020-07-20 22:05:07,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:05:05" (2/3) ... [2020-07-20 22:05:07,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f8c2ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:05:07, skipping insertion in model container [2020-07-20 22:05:07,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:05:07" (3/3) ... [2020-07-20 22:05:07,395 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label40.c [2020-07-20 22:05:07,407 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 22:05:07,417 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 22:05:07,432 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 22:05:07,466 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 22:05:07,467 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 22:05:07,467 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 22:05:07,467 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 22:05:07,468 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 22:05:07,468 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 22:05:07,468 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 22:05:07,468 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 22:05:07,497 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 22:05:07,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-07-20 22:05:07,517 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:05:07,519 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] [2020-07-20 22:05:07,520 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:05:07,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:05:07,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1033095319, now seen corresponding path program 1 times [2020-07-20 22:05:07,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:05:07,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1007080395] [2020-07-20 22:05:07,540 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:07,760 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:05:07,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:05:07,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 22:05:07,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:07,867 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 22:05:07,867 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:05:07,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1007080395] [2020-07-20 22:05:07,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:05:07,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:05:07,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338016893] [2020-07-20 22:05:07,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:05:07,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:07,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:05:07,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:05:07,894 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 22:05:08,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:05:08,861 INFO L93 Difference]: Finished difference Result 649 states and 1093 transitions. [2020-07-20 22:05:08,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:05:08,864 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2020-07-20 22:05:08,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:05:08,904 INFO L225 Difference]: With dead ends: 649 [2020-07-20 22:05:08,904 INFO L226 Difference]: Without dead ends: 330 [2020-07-20 22:05:08,920 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 93 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 22:05:08,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-07-20 22:05:09,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2020-07-20 22:05:09,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-07-20 22:05:09,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 481 transitions. [2020-07-20 22:05:09,044 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 481 transitions. Word has length 95 [2020-07-20 22:05:09,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:05:09,046 INFO L479 AbstractCegarLoop]: Abstraction has 330 states and 481 transitions. [2020-07-20 22:05:09,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:05:09,046 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 481 transitions. [2020-07-20 22:05:09,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-07-20 22:05:09,060 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:05:09,060 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:05:09,276 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:09,276 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:05:09,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:05:09,277 INFO L82 PathProgramCache]: Analyzing trace with hash -377311506, now seen corresponding path program 1 times [2020-07-20 22:05:09,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:05:09,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1115123020] [2020-07-20 22:05:09,279 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:09,371 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:05:09,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:05:09,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:05:09,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:09,421 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:05:09,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:05:09,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1115123020] [2020-07-20 22:05:09,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:05:09,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:05:09,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365054609] [2020-07-20 22:05:09,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:05:09,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:09,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:05:09,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:05:09,427 INFO L87 Difference]: Start difference. First operand 330 states and 481 transitions. Second operand 3 states. [2020-07-20 22:05:10,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:05:10,081 INFO L93 Difference]: Finished difference Result 948 states and 1400 transitions. [2020-07-20 22:05:10,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:05:10,084 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-07-20 22:05:10,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:05:10,089 INFO L225 Difference]: With dead ends: 948 [2020-07-20 22:05:10,090 INFO L226 Difference]: Without dead ends: 624 [2020-07-20 22:05:10,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 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 22:05:10,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2020-07-20 22:05:10,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 622. [2020-07-20 22:05:10,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2020-07-20 22:05:10,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 877 transitions. [2020-07-20 22:05:10,128 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 877 transitions. Word has length 103 [2020-07-20 22:05:10,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:05:10,129 INFO L479 AbstractCegarLoop]: Abstraction has 622 states and 877 transitions. [2020-07-20 22:05:10,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:05:10,130 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 877 transitions. [2020-07-20 22:05:10,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-07-20 22:05:10,132 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:05:10,133 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:05:10,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:10,337 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:05:10,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:05:10,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1456059206, now seen corresponding path program 1 times [2020-07-20 22:05:10,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:05:10,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2018011990] [2020-07-20 22:05:10,340 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:10,426 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:05:10,426 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:05:10,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 22:05:10,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:10,501 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:05:10,501 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:05:10,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2018011990] [2020-07-20 22:05:10,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:05:10,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:05:10,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814812613] [2020-07-20 22:05:10,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:05:10,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:10,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:05:10,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:05:10,514 INFO L87 Difference]: Start difference. First operand 622 states and 877 transitions. Second operand 3 states. [2020-07-20 22:05:11,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:05:11,145 INFO L93 Difference]: Finished difference Result 1815 states and 2610 transitions. [2020-07-20 22:05:11,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:05:11,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2020-07-20 22:05:11,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:05:11,162 INFO L225 Difference]: With dead ends: 1815 [2020-07-20 22:05:11,162 INFO L226 Difference]: Without dead ends: 1199 [2020-07-20 22:05:11,165 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 107 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 22:05:11,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2020-07-20 22:05:11,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 1199. [2020-07-20 22:05:11,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1199 states. [2020-07-20 22:05:11,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1199 states to 1199 states and 1577 transitions. [2020-07-20 22:05:11,241 INFO L78 Accepts]: Start accepts. Automaton has 1199 states and 1577 transitions. Word has length 109 [2020-07-20 22:05:11,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:05:11,241 INFO L479 AbstractCegarLoop]: Abstraction has 1199 states and 1577 transitions. [2020-07-20 22:05:11,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:05:11,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1199 states and 1577 transitions. [2020-07-20 22:05:11,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-07-20 22:05:11,245 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:05:11,246 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-07-20 22:05:11,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:11,459 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:05:11,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:05:11,460 INFO L82 PathProgramCache]: Analyzing trace with hash 549151607, now seen corresponding path program 1 times [2020-07-20 22:05:11,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:05:11,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1930069296] [2020-07-20 22:05:11,461 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:11,561 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:05:11,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:05:11,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:05:11,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:11,626 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:05:11,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:05:11,743 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:05:11,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1930069296] [2020-07-20 22:05:11,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:05:11,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 22:05:11,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198786382] [2020-07-20 22:05:11,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 22:05:11,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:11,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 22:05:11,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 22:05:11,745 INFO L87 Difference]: Start difference. First operand 1199 states and 1577 transitions. Second operand 7 states. [2020-07-20 22:05:12,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:05:12,406 INFO L93 Difference]: Finished difference Result 2399 states and 3194 transitions. [2020-07-20 22:05:12,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 22:05:12,407 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2020-07-20 22:05:12,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:05:12,419 INFO L225 Difference]: With dead ends: 2399 [2020-07-20 22:05:12,420 INFO L226 Difference]: Without dead ends: 1206 [2020-07-20 22:05:12,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 220 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 22:05:12,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2020-07-20 22:05:12,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1188. [2020-07-20 22:05:12,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1188 states. [2020-07-20 22:05:12,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1536 transitions. [2020-07-20 22:05:12,486 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1536 transitions. Word has length 113 [2020-07-20 22:05:12,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:05:12,487 INFO L479 AbstractCegarLoop]: Abstraction has 1188 states and 1536 transitions. [2020-07-20 22:05:12,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 22:05:12,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1536 transitions. [2020-07-20 22:05:12,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-07-20 22:05:12,493 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:05:12,494 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:05:12,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:12,695 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:05:12,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:05:12,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1133854759, now seen corresponding path program 1 times [2020-07-20 22:05:12,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:05:12,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1651091513] [2020-07-20 22:05:12,697 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:12,788 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:05:12,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:05:12,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:05:12,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:12,837 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:05:12,837 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:05:12,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1651091513] [2020-07-20 22:05:12,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:05:12,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:05:12,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784545932] [2020-07-20 22:05:12,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:05:12,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:12,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:05:12,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:05:12,840 INFO L87 Difference]: Start difference. First operand 1188 states and 1536 transitions. Second operand 3 states. [2020-07-20 22:05:13,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:05:13,453 INFO L93 Difference]: Finished difference Result 2946 states and 3832 transitions. [2020-07-20 22:05:13,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:05:13,453 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2020-07-20 22:05:13,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:05:13,460 INFO L225 Difference]: With dead ends: 2946 [2020-07-20 22:05:13,460 INFO L226 Difference]: Without dead ends: 1183 [2020-07-20 22:05:13,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 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 22:05:13,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2020-07-20 22:05:13,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183. [2020-07-20 22:05:13,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1183 states. [2020-07-20 22:05:13,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1477 transitions. [2020-07-20 22:05:13,501 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1477 transitions. Word has length 121 [2020-07-20 22:05:13,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:05:13,502 INFO L479 AbstractCegarLoop]: Abstraction has 1183 states and 1477 transitions. [2020-07-20 22:05:13,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:05:13,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1477 transitions. [2020-07-20 22:05:13,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-07-20 22:05:13,505 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:05:13,506 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:05:13,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:13,721 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:05:13,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:05:13,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1118081225, now seen corresponding path program 1 times [2020-07-20 22:05:13,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:05:13,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1186774800] [2020-07-20 22:05:13,723 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:13,828 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:05:13,829 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:05:13,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:05:13,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:13,866 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:05:13,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:05:13,926 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:05:13,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1186774800] [2020-07-20 22:05:13,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:05:13,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 22:05:13,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40108115] [2020-07-20 22:05:13,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 22:05:13,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:13,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 22:05:13,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:05:13,928 INFO L87 Difference]: Start difference. First operand 1183 states and 1477 transitions. Second operand 6 states. [2020-07-20 22:05:14,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:05:14,746 INFO L93 Difference]: Finished difference Result 3014 states and 3913 transitions. [2020-07-20 22:05:14,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 22:05:14,747 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2020-07-20 22:05:14,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:05:14,758 INFO L225 Difference]: With dead ends: 3014 [2020-07-20 22:05:14,758 INFO L226 Difference]: Without dead ends: 1837 [2020-07-20 22:05:14,762 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 240 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:05:14,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1837 states. [2020-07-20 22:05:14,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1837 to 1801. [2020-07-20 22:05:14,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1801 states. [2020-07-20 22:05:14,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 2139 transitions. [2020-07-20 22:05:14,815 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 2139 transitions. Word has length 123 [2020-07-20 22:05:14,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:05:14,815 INFO L479 AbstractCegarLoop]: Abstraction has 1801 states and 2139 transitions. [2020-07-20 22:05:14,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 22:05:14,816 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 2139 transitions. [2020-07-20 22:05:14,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-07-20 22:05:14,820 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:05:14,821 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-20 22:05:15,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:15,035 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:05:15,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:05:15,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1954430686, now seen corresponding path program 1 times [2020-07-20 22:05:15,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:05:15,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [826681519] [2020-07-20 22:05:15,037 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:15,131 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:05:15,131 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:05:15,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:05:15,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:15,177 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 22:05:15,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:05:15,243 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 22:05:15,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [826681519] [2020-07-20 22:05:15,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:05:15,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 22:05:15,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796533170] [2020-07-20 22:05:15,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 22:05:15,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:15,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 22:05:15,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 22:05:15,246 INFO L87 Difference]: Start difference. First operand 1801 states and 2139 transitions. Second operand 7 states. [2020-07-20 22:05:16,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:05:16,118 INFO L93 Difference]: Finished difference Result 5001 states and 6097 transitions. [2020-07-20 22:05:16,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 22:05:16,123 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 139 [2020-07-20 22:05:16,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:05:16,139 INFO L225 Difference]: With dead ends: 5001 [2020-07-20 22:05:16,139 INFO L226 Difference]: Without dead ends: 3206 [2020-07-20 22:05:16,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 273 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:05:16,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3206 states. [2020-07-20 22:05:16,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3206 to 3154. [2020-07-20 22:05:16,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3154 states. [2020-07-20 22:05:16,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3154 states to 3154 states and 3769 transitions. [2020-07-20 22:05:16,229 INFO L78 Accepts]: Start accepts. Automaton has 3154 states and 3769 transitions. Word has length 139 [2020-07-20 22:05:16,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:05:16,229 INFO L479 AbstractCegarLoop]: Abstraction has 3154 states and 3769 transitions. [2020-07-20 22:05:16,229 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 22:05:16,230 INFO L276 IsEmpty]: Start isEmpty. Operand 3154 states and 3769 transitions. [2020-07-20 22:05:16,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-07-20 22:05:16,237 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:05:16,237 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:05:16,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:16,452 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:05:16,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:05:16,453 INFO L82 PathProgramCache]: Analyzing trace with hash 2021068016, now seen corresponding path program 1 times [2020-07-20 22:05:16,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:05:16,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1315105749] [2020-07-20 22:05:16,454 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:16,548 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:05:16,549 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:05:16,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:05:16,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:16,594 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-20 22:05:16,595 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:05:16,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1315105749] [2020-07-20 22:05:16,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:05:16,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:05:16,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116511501] [2020-07-20 22:05:16,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:05:16,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:16,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:05:16,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:05:16,598 INFO L87 Difference]: Start difference. First operand 3154 states and 3769 transitions. Second operand 3 states. [2020-07-20 22:05:17,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:05:17,189 INFO L93 Difference]: Finished difference Result 6888 states and 8252 transitions. [2020-07-20 22:05:17,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:05:17,190 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 139 [2020-07-20 22:05:17,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:05:17,207 INFO L225 Difference]: With dead ends: 6888 [2020-07-20 22:05:17,207 INFO L226 Difference]: Without dead ends: 3884 [2020-07-20 22:05:17,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 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 22:05:17,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3884 states. [2020-07-20 22:05:17,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3884 to 3882. [2020-07-20 22:05:17,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3882 states. [2020-07-20 22:05:17,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3882 states to 3882 states and 4651 transitions. [2020-07-20 22:05:17,314 INFO L78 Accepts]: Start accepts. Automaton has 3882 states and 4651 transitions. Word has length 139 [2020-07-20 22:05:17,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:05:17,315 INFO L479 AbstractCegarLoop]: Abstraction has 3882 states and 4651 transitions. [2020-07-20 22:05:17,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:05:17,315 INFO L276 IsEmpty]: Start isEmpty. Operand 3882 states and 4651 transitions. [2020-07-20 22:05:17,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-20 22:05:17,325 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:05:17,325 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:05:17,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:17,539 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:05:17,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:05:17,539 INFO L82 PathProgramCache]: Analyzing trace with hash 979862262, now seen corresponding path program 1 times [2020-07-20 22:05:17,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:05:17,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [828003510] [2020-07-20 22:05:17,540 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:17,632 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:05:17,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:05:17,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 22:05:17,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:17,668 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-07-20 22:05:17,669 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:05:17,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [828003510] [2020-07-20 22:05:17,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:05:17,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 22:05:17,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223975970] [2020-07-20 22:05:17,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 22:05:17,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:17,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 22:05:17,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 22:05:17,671 INFO L87 Difference]: Start difference. First operand 3882 states and 4651 transitions. Second operand 5 states. [2020-07-20 22:05:18,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:05:18,370 INFO L93 Difference]: Finished difference Result 7692 states and 9405 transitions. [2020-07-20 22:05:18,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 22:05:18,372 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2020-07-20 22:05:18,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:05:18,389 INFO L225 Difference]: With dead ends: 7692 [2020-07-20 22:05:18,389 INFO L226 Difference]: Without dead ends: 3960 [2020-07-20 22:05:18,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:05:18,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3960 states. [2020-07-20 22:05:18,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3960 to 3468. [2020-07-20 22:05:18,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3468 states. [2020-07-20 22:05:18,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3468 states to 3468 states and 3910 transitions. [2020-07-20 22:05:18,546 INFO L78 Accepts]: Start accepts. Automaton has 3468 states and 3910 transitions. Word has length 141 [2020-07-20 22:05:18,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:05:18,546 INFO L479 AbstractCegarLoop]: Abstraction has 3468 states and 3910 transitions. [2020-07-20 22:05:18,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 22:05:18,547 INFO L276 IsEmpty]: Start isEmpty. Operand 3468 states and 3910 transitions. [2020-07-20 22:05:18,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-07-20 22:05:18,553 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:05:18,553 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:05:18,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:18,769 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:05:18,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:05:18,769 INFO L82 PathProgramCache]: Analyzing trace with hash -27567672, now seen corresponding path program 1 times [2020-07-20 22:05:18,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:05:18,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770210425] [2020-07-20 22:05:18,771 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:18,879 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:05:18,879 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:05:18,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:05:18,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:18,928 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-07-20 22:05:18,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:05:19,007 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 71 proven. 28 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-20 22:05:19,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770210425] [2020-07-20 22:05:19,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:05:19,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 22:05:19,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555891311] [2020-07-20 22:05:19,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 22:05:19,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:19,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 22:05:19,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:05:19,010 INFO L87 Difference]: Start difference. First operand 3468 states and 3910 transitions. Second operand 6 states. [2020-07-20 22:05:19,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:05:19,719 INFO L93 Difference]: Finished difference Result 7145 states and 8214 transitions. [2020-07-20 22:05:19,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 22:05:19,720 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 164 [2020-07-20 22:05:19,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:05:19,736 INFO L225 Difference]: With dead ends: 7145 [2020-07-20 22:05:19,736 INFO L226 Difference]: Without dead ends: 3829 [2020-07-20 22:05:19,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 324 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 22:05:19,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3829 states. [2020-07-20 22:05:19,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3829 to 3765. [2020-07-20 22:05:19,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3765 states. [2020-07-20 22:05:19,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3765 states to 3765 states and 4238 transitions. [2020-07-20 22:05:19,833 INFO L78 Accepts]: Start accepts. Automaton has 3765 states and 4238 transitions. Word has length 164 [2020-07-20 22:05:19,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:05:19,833 INFO L479 AbstractCegarLoop]: Abstraction has 3765 states and 4238 transitions. [2020-07-20 22:05:19,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 22:05:19,833 INFO L276 IsEmpty]: Start isEmpty. Operand 3765 states and 4238 transitions. [2020-07-20 22:05:19,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-07-20 22:05:19,843 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:05:19,843 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:05:20,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:20,057 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:05:20,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:05:20,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1100298320, now seen corresponding path program 1 times [2020-07-20 22:05:20,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:05:20,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [127454965] [2020-07-20 22:05:20,059 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 22:05:20,217 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:05:20,218 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:05:20,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 22:05:20,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:20,267 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-07-20 22:05:20,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:05:20,352 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 79 proven. 28 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-20 22:05:20,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [127454965] [2020-07-20 22:05:20,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:05:20,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 22:05:20,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512842621] [2020-07-20 22:05:20,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 22:05:20,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:20,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 22:05:20,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 22:05:20,354 INFO L87 Difference]: Start difference. First operand 3765 states and 4238 transitions. Second operand 7 states. [2020-07-20 22:05:21,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:05:21,732 INFO L93 Difference]: Finished difference Result 7453 states and 8585 transitions. [2020-07-20 22:05:21,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 22:05:21,732 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 168 [2020-07-20 22:05:21,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:05:21,733 INFO L225 Difference]: With dead ends: 7453 [2020-07-20 22:05:21,733 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 22:05:21,749 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 332 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 22:05:21,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 22:05:21,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 22:05:21,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 22:05:21,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 22:05:21,751 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 168 [2020-07-20 22:05:21,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:05:21,751 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 22:05:21,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 22:05:21,751 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 22:05:21,751 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 22:05:21,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:21,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 22:05:22,631 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 156 [2020-07-20 22:05:22,863 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 156 [2020-07-20 22:05:24,015 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 118 DAG size of output: 73 [2020-07-20 22:05:24,718 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 49 [2020-07-20 22:05:25,358 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 49 [2020-07-20 22:05:25,362 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:05:25,363 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)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) [2020-07-20 22:05:25,363 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:05:25,363 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,363 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,364 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,364 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,364 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,364 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 22:05:25,364 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 22:05:25,365 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 22:05:25,365 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 22:05:25,365 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 22:05:25,365 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 22:05:25,365 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 22:05:25,365 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 22:05:25,365 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 22:05:25,365 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 22:05:25,365 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 22:05:25,365 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 22:05:25,366 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 22:05:25,366 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,366 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,366 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,366 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,366 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 22:05:25,366 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,366 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 22:05:25,367 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 22:05:25,367 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 22:05:25,367 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 22:05:25,367 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 22:05:25,367 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 22:05:25,367 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 22:05:25,367 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 22:05:25,367 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 22:05:25,367 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 22:05:25,368 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 22:05:25,368 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 22:05:25,368 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 22:05:25,368 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 22:05:25,368 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 22:05:25,368 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,368 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,368 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,369 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,369 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,369 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 439) no Hoare annotation was computed. [2020-07-20 22:05:25,369 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 22:05:25,369 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 22:05:25,369 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 22:05:25,369 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 22:05:25,370 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 22:05:25,370 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 22:05:25,370 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 22:05:25,370 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 22:05:25,370 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 22:05:25,370 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 22:05:25,370 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 22:05:25,370 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,371 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,371 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,371 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,371 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,371 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 22:05:25,371 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 22:05:25,371 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 22:05:25,371 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 22:05:25,372 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 22:05:25,372 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 22:05:25,372 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 22:05:25,372 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 22:05:25,372 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 22:05:25,372 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 22:05:25,372 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 22:05:25,372 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 22:05:25,373 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 22:05:25,373 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,373 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,373 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,373 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,373 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,373 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 22:05:25,373 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 22:05:25,374 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 22:05:25,374 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 22:05:25,374 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 22:05:25,374 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 22:05:25,374 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 22:05:25,374 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 22:05:25,374 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 22:05:25,374 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 22:05:25,374 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 22:05:25,375 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 22:05:25,375 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 22:05:25,375 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 22:05:25,375 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 22:05:25,375 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 22:05:25,375 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,375 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,375 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,376 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,376 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 22:05:25,376 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,376 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 22:05:25,376 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,376 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 22:05:25,376 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 22:05:25,377 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 22:05:25,377 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,377 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,377 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 22:05:25,377 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 22:05:25,377 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 22:05:25,377 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 22:05:25,377 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 22:05:25,378 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 22:05:25,378 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 22:05:25,378 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 22:05:25,378 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 22:05:25,378 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 22:05:25,378 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 22:05:25,378 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,378 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,378 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,379 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,379 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,379 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,379 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 22:05:25,379 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 22:05:25,379 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 22:05:25,379 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 22:05:25,379 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 22:05:25,380 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 22:05:25,380 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 22:05:25,380 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 22:05:25,380 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 22:05:25,380 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 22:05:25,380 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 22:05:25,380 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,380 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,381 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,381 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,381 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,381 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,381 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 22:05:25,381 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 22:05:25,381 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 22:05:25,381 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 22:05:25,381 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 22:05:25,382 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 22:05:25,382 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 22:05:25,382 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 22:05:25,382 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 22:05:25,382 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 22:05:25,382 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 22:05:25,382 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 22:05:25,382 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 22:05:25,382 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 22:05:25,383 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,383 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,383 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,383 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse10 (= 1 |old(~a19~0)|)) (.cse9 (<= 9 ~a28~0)) (.cse17 (= 1 ~a25~0)) (.cse14 (<= ~a28~0 |old(~a28~0)|)) (.cse15 (<= ~a17~0 8)) (.cse16 (= ~a19~0 |old(~a19~0)|)) (.cse18 (= ~a25~0 |old(~a25~0)|))) (let ((.cse6 (and .cse14 .cse15 .cse16 .cse18)) (.cse1 (not (<= |old(~a28~0)| 9))) (.cse2 (not (<= |old(~a25~0)| 0))) (.cse13 (and .cse14 .cse15 .cse16 .cse9 .cse17)) (.cse11 (not (<= |old(~a28~0)| 10))) (.cse4 (not .cse10)) (.cse12 (<= ~a11~0 0)) (.cse5 (not (= 1 |old(~a25~0)|))) (.cse3 (not (<= |old(~a17~0)| 8))) (.cse7 (not (<= |old(~a11~0)| 0))) (.cse0 (not (<= 9 |old(~a28~0)|))) (.cse8 (not (<= |old(~a17~0)| 7)))) (and (or .cse0 .cse1 .cse2 (<= ~a28~0 9) .cse3) (or .cse4 (not (<= 8 |old(~a28~0)|)) (<= 8 ~a28~0) .cse5 .cse3) (or .cse1 .cse2 .cse6 .cse3 .cse7) (or .cse0 .cse8 .cse9) (or .cse10 .cse1 .cse2 .cse6 .cse3) (or .cse11 .cse12 .cse0 .cse5 .cse3 .cse7) (or .cse0 .cse1 .cse2 .cse3 .cse9) (or .cse4 .cse13 .cse0 .cse5 .cse3) (or .cse4 .cse5 (and .cse14 .cse15 .cse16 .cse17) .cse3) (or .cse4 .cse11 .cse12 .cse2 .cse3 .cse7) (or (<= ~a17~0 |old(~a17~0)|) .cse8) (or .cse10 .cse12 .cse0 .cse8 .cse7) (or .cse12 .cse1 .cse2 .cse3 .cse7) (or .cse4 (and .cse15 (<= ~a28~0 10) .cse16 .cse9 .cse18) .cse11 .cse0 .cse2 .cse3) (or .cse13 .cse11 .cse0 .cse5 .cse3) (or .cse4 .cse12 .cse5 .cse3 .cse7) (or .cse10 .cse0 .cse8 (not (= 1 ~a19~0)))))) [2020-07-20 22:05:25,383 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,384 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,384 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,384 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 22:05:25,384 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 22:05:25,384 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 22:05:25,384 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 22:05:25,384 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 22:05:25,384 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 22:05:25,384 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 22:05:25,385 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 22:05:25,385 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 22:05:25,385 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 22:05:25,385 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 22:05:25,385 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 22:05:25,385 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 22:05:25,385 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,385 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,386 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,386 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,386 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,386 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,386 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 22:05:25,386 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 22:05:25,386 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 22:05:25,386 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 22:05:25,387 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 22:05:25,387 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 22:05:25,387 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 22:05:25,387 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 22:05:25,387 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 22:05:25,387 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 22:05:25,387 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 22:05:25,387 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 22:05:25,388 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 22:05:25,388 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 22:05:25,388 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 22:05:25,388 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 22:05:25,388 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,388 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,388 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,388 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,388 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:25,389 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 22:05:25,389 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 22:05:25,389 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 22:05:25,389 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 22:05:25,389 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 22:05:25,389 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 22:05:25,389 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 22:05:25,389 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 22:05:25,389 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 22:05:25,390 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 22:05:25,390 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 22:05:25,390 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 22:05:25,390 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 22:05:25,390 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 22:05:25,390 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 22:05:25,390 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 22:05:25,390 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 22:05:25,391 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 22:05:25,391 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 22:05:25,391 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:05:25,391 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a28~0 9) (<= ~a25~0 0)) [2020-07-20 22:05:25,391 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 22:05:25,391 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:05:25,391 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 9)) (not (<= |old(~a25~0)| 0)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-20 22:05:25,392 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse3 (= 1 ~a25~0)) (.cse2 (= 1 ~a19~0)) (.cse0 (<= ~a17~0 8)) (.cse4 (<= ~a28~0 10)) (.cse1 (<= ~a25~0 0)) (.cse5 (<= 9 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 (<= ~a28~0 9) .cse1 (not .cse2)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse2 .cse0 .cse3) (and .cse0 .cse4 .cse5 .cse3) (not (<= |old(~a28~0)| 9)) (and .cse2 .cse0 .cse4 .cse1 .cse5) (not (<= |old(~a25~0)| 0)) (<= ~a17~0 7) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0)))) [2020-07-20 22:05:25,392 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 22:05:25,392 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 22:05:25,392 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse3 (= 1 ~a25~0)) (.cse2 (= 1 ~a19~0)) (.cse0 (<= ~a17~0 8)) (.cse4 (<= ~a28~0 10)) (.cse1 (<= ~a25~0 0)) (.cse5 (<= 9 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 (<= ~a28~0 9) .cse1 (not .cse2)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse2 .cse0 .cse3) (and .cse0 .cse4 .cse5 .cse3) (not (<= |old(~a28~0)| 9)) (and .cse2 .cse0 .cse4 .cse1 .cse5) (not (<= |old(~a25~0)| 0)) (<= ~a17~0 7) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0)))) [2020-07-20 22:05:25,392 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 22:05:25,392 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 22:05:25,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:05:25 BoogieIcfgContainer [2020-07-20 22:05:25,414 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 22:05:25,416 INFO L168 Benchmark]: Toolchain (without parser) took 20215.76 ms. Allocated memory was 137.9 MB in the beginning and 496.5 MB in the end (delta: 358.6 MB). Free memory was 99.3 MB in the beginning and 207.8 MB in the end (delta: -108.5 MB). Peak memory consumption was 387.5 MB. Max. memory is 7.1 GB. [2020-07-20 22:05:25,417 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 22:05:25,418 INFO L168 Benchmark]: CACSL2BoogieTranslator took 797.03 ms. Allocated memory was 137.9 MB in the beginning and 204.5 MB in the end (delta: 66.6 MB). Free memory was 98.9 MB in the beginning and 170.7 MB in the end (delta: -71.8 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. [2020-07-20 22:05:25,418 INFO L168 Benchmark]: Boogie Preprocessor took 99.59 ms. Allocated memory is still 204.5 MB. Free memory was 170.7 MB in the beginning and 165.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-20 22:05:25,419 INFO L168 Benchmark]: RCFGBuilder took 1278.76 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 165.8 MB in the beginning and 180.9 MB in the end (delta: -15.2 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2020-07-20 22:05:25,420 INFO L168 Benchmark]: TraceAbstraction took 18033.13 ms. Allocated memory was 236.5 MB in the beginning and 496.5 MB in the end (delta: 260.0 MB). Free memory was 180.9 MB in the beginning and 207.8 MB in the end (delta: -26.9 MB). Peak memory consumption was 370.5 MB. Max. memory is 7.1 GB. [2020-07-20 22:05:25,427 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 797.03 ms. Allocated memory was 137.9 MB in the beginning and 204.5 MB in the end (delta: 66.6 MB). Free memory was 98.9 MB in the beginning and 170.7 MB in the end (delta: -71.8 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.59 ms. Allocated memory is still 204.5 MB. Free memory was 170.7 MB in the beginning and 165.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1278.76 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 165.8 MB in the beginning and 180.9 MB in the end (delta: -15.2 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18033.13 ms. Allocated memory was 236.5 MB in the beginning and 496.5 MB in the end (delta: 260.0 MB). Free memory was 180.9 MB in the beginning and 207.8 MB in the end (delta: -26.9 MB). Peak memory consumption was 370.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 439]: 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)) || (((a17 <= 8 && a28 <= 9) && a25 <= 0) && !(1 == a19))) || (((a17 <= \old(a17) && a11 <= 0) && a28 <= \old(a28)) && a25 == \old(a25))) || ((1 == a19 && a17 <= 8) && 1 == a25)) || (((a17 <= 8 && a28 <= 10) && 9 <= a28) && 1 == a25)) || !(\old(a28) <= 9)) || ((((1 == a19 && a17 <= 8) && a28 <= 10) && a25 <= 0) && 9 <= a28)) || !(\old(a25) <= 0)) || a17 <= 7) || !(\old(a17) <= 8)) || !(\old(a11) <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.5s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1353 SDtfs, 3829 SDslu, 569 SDs, 0 SdLazy, 6291 SolverSat, 818 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2132 GetRequests, 2083 SyntacticMatches, 6 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3882occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 666 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 189 PreInvPairs, 287 NumberOfFragments, 639 HoareAnnotationTreeSize, 189 FomulaSimplifications, 10121 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8473 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1415 NumberOfCodeBlocks, 1415 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 2106 ConstructedInterpolants, 0 QuantifiedInterpolants, 524494 SizeOfPredicates, 14 NumberOfNonLiveVariables, 4080 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 16 InterpolantComputations, 6 PerfectInterpolantSequences, 749/821 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...