/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 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label08.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:05:39,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 20:05:39,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 20:05:39,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 20:05:39,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 20:05:39,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 20:05:39,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 20:05:39,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 20:05:39,914 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 20:05:39,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 20:05:39,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 20:05:39,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 20:05:39,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:05:39,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:05:39,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:05:39,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:05:39,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:05:39,925 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:05:39,927 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:05:39,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:05:39,930 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:05:39,931 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:05:39,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:05:39,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:05:39,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 20:05:39,946 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 20:05:39,960 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:05:39,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:05:39,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:05:39,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:05:39,962 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:05:39,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:05:39,963 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:05:39,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:05:39,963 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:05:39,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:05:39,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:05:39,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:05:39,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:05:39,964 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:05:39,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:05:39,965 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:05:39,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:05:39,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:05:39,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:05:39,966 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:05:39,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:05:39,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:05:39,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:05:39,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:05:39,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:05:39,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:05:39,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:05:39,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:05:39,967 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:05:39,967 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 -> 2 [2020-07-21 20:05:40,264 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:05:40,277 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:05:40,281 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:05:40,283 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:05:40,283 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:05:40,284 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label08.c [2020-07-21 20:05:40,348 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6ecae697/bce0995f228d486787e6bfbf04cf34a1/FLAGc9ea4f72d [2020-07-21 20:05:40,919 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:05:40,920 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label08.c [2020-07-21 20:05:40,935 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6ecae697/bce0995f228d486787e6bfbf04cf34a1/FLAGc9ea4f72d [2020-07-21 20:05:41,188 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6ecae697/bce0995f228d486787e6bfbf04cf34a1 [2020-07-21 20:05:41,199 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:05:41,202 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:05:41,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:05:41,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:05:41,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:05:41,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:05:41" (1/1) ... [2020-07-21 20:05:41,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d841c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:05:41, skipping insertion in model container [2020-07-21 20:05:41,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:05:41" (1/1) ... [2020-07-21 20:05:41,219 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:05:41,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:05:41,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:05:41,850 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:05:41,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:05:41,981 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:05:41,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:05:41 WrapperNode [2020-07-21 20:05:41,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:05:41,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:05:41,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:05:41,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:05:41,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:05:41" (1/1) ... [2020-07-21 20:05:41,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:05:41" (1/1) ... [2020-07-21 20:05:42,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:05:41" (1/1) ... [2020-07-21 20:05:42,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:05:41" (1/1) ... [2020-07-21 20:05:42,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:05:41" (1/1) ... [2020-07-21 20:05:42,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:05:41" (1/1) ... [2020-07-21 20:05:42,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:05:41" (1/1) ... [2020-07-21 20:05:42,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:05:42,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:05:42,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:05:42,109 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:05:42,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:05:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:05:42,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:05:42,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:05:42,198 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 20:05:42,198 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:05:42,199 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 20:05:42,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:05:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 20:05:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 20:05:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:05:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:05:42,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:05:43,431 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:05:43,431 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 20:05:43,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:05:43 BoogieIcfgContainer [2020-07-21 20:05:43,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:05:43,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:05:43,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:05:43,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:05:43,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:05:41" (1/3) ... [2020-07-21 20:05:43,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@651cd05b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:05:43, skipping insertion in model container [2020-07-21 20:05:43,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:05:41" (2/3) ... [2020-07-21 20:05:43,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@651cd05b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:05:43, skipping insertion in model container [2020-07-21 20:05:43,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:05:43" (3/3) ... [2020-07-21 20:05:43,453 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label08.c [2020-07-21 20:05:43,464 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:05:43,478 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:05:43,494 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:05:43,527 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:05:43,528 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:05:43,528 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:05:43,528 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:05:43,529 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:05:43,529 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:05:43,530 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:05:43,530 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:05:43,552 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 20:05:43,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-07-21 20:05:43,566 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:05:43,567 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:05:43,567 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:05:43,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:05:43,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1920403729, now seen corresponding path program 1 times [2020-07-21 20:05:43,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:05:43,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1427855920] [2020-07-21 20:05:43,583 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:05:43,786 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:05:43,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:05:43,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:05:43,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:05:43,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:05:43,904 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:05:43,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1427855920] [2020-07-21 20:05:43,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:05:43,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:05:43,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555730111] [2020-07-21 20:05:43,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:05:43,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:05:43,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:05:43,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:05:43,930 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-21 20:05:45,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:05:45,004 INFO L93 Difference]: Finished difference Result 572 states and 963 transitions. [2020-07-21 20:05:45,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:05:45,006 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2020-07-21 20:05:45,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:05:45,023 INFO L225 Difference]: With dead ends: 572 [2020-07-21 20:05:45,023 INFO L226 Difference]: Without dead ends: 278 [2020-07-21 20:05:45,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:05:45,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-21 20:05:45,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-21 20:05:45,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-21 20:05:45,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2020-07-21 20:05:45,100 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 119 [2020-07-21 20:05:45,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:05:45,101 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2020-07-21 20:05:45,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:05:45,101 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2020-07-21 20:05:45,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 20:05:45,107 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:05:45,108 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:05:45,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:05:45,322 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:05:45,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:05:45,323 INFO L82 PathProgramCache]: Analyzing trace with hash 10659704, now seen corresponding path program 1 times [2020-07-21 20:05:45,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:05:45,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [512333459] [2020-07-21 20:05:45,324 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:05:45,445 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:05:45,446 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:05:45,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:05:45,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:05:45,523 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:05:45,523 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:05:45,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [512333459] [2020-07-21 20:05:45,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:05:45,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:05:45,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567115590] [2020-07-21 20:05:45,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:05:45,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:05:45,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:05:45,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:05:45,527 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 5 states. [2020-07-21 20:05:46,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:05:46,427 INFO L93 Difference]: Finished difference Result 842 states and 1218 transitions. [2020-07-21 20:05:46,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:05:46,428 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-07-21 20:05:46,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:05:46,436 INFO L225 Difference]: With dead ends: 842 [2020-07-21 20:05:46,437 INFO L226 Difference]: Without dead ends: 570 [2020-07-21 20:05:46,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 20:05:46,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-07-21 20:05:46,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 556. [2020-07-21 20:05:46,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-07-21 20:05:46,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 785 transitions. [2020-07-21 20:05:46,489 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 785 transitions. Word has length 129 [2020-07-21 20:05:46,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:05:46,490 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 785 transitions. [2020-07-21 20:05:46,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:05:46,490 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 785 transitions. [2020-07-21 20:05:46,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-21 20:05:46,494 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:05:46,495 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:05:46,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:05:46,711 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:05:46,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:05:46,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1525536778, now seen corresponding path program 1 times [2020-07-21 20:05:46,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:05:46,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354146057] [2020-07-21 20:05:46,713 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:05:46,839 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:05:46,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:05:46,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 20:05:46,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:05:46,895 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:05:46,896 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:05:46,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1354146057] [2020-07-21 20:05:46,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:05:46,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:05:46,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787459931] [2020-07-21 20:05:46,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:05:46,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:05:46,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:05:46,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:05:46,899 INFO L87 Difference]: Start difference. First operand 556 states and 785 transitions. Second operand 3 states. [2020-07-21 20:05:47,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:05:47,508 INFO L93 Difference]: Finished difference Result 1652 states and 2385 transitions. [2020-07-21 20:05:47,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:05:47,509 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2020-07-21 20:05:47,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:05:47,517 INFO L225 Difference]: With dead ends: 1652 [2020-07-21 20:05:47,518 INFO L226 Difference]: Without dead ends: 1102 [2020-07-21 20:05:47,520 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:05:47,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2020-07-21 20:05:47,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1102. [2020-07-21 20:05:47,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1102 states. [2020-07-21 20:05:47,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1504 transitions. [2020-07-21 20:05:47,584 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1504 transitions. Word has length 130 [2020-07-21 20:05:47,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:05:47,585 INFO L479 AbstractCegarLoop]: Abstraction has 1102 states and 1504 transitions. [2020-07-21 20:05:47,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:05:47,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1504 transitions. [2020-07-21 20:05:47,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-07-21 20:05:47,592 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:05:47,593 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:05:47,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:05:47,808 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:05:47,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:05:47,809 INFO L82 PathProgramCache]: Analyzing trace with hash -423867461, now seen corresponding path program 1 times [2020-07-21 20:05:47,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:05:47,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1900741900] [2020-07-21 20:05:47,811 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:05:47,947 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:05:47,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:05:47,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:05:47,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:05:48,053 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:05:48,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:05:48,176 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:05:48,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1900741900] [2020-07-21 20:05:48,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:05:48,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 20:05:48,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136587083] [2020-07-21 20:05:48,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 20:05:48,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:05:48,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 20:05:48,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 20:05:48,179 INFO L87 Difference]: Start difference. First operand 1102 states and 1504 transitions. Second operand 8 states. [2020-07-21 20:05:50,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:05:50,072 INFO L93 Difference]: Finished difference Result 4220 states and 6124 transitions. [2020-07-21 20:05:50,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 20:05:50,073 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 138 [2020-07-21 20:05:50,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:05:50,097 INFO L225 Difference]: With dead ends: 4220 [2020-07-21 20:05:50,097 INFO L226 Difference]: Without dead ends: 3124 [2020-07-21 20:05:50,102 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-07-21 20:05:50,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3124 states. [2020-07-21 20:05:50,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3124 to 2349. [2020-07-21 20:05:50,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2349 states. [2020-07-21 20:05:50,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2349 states to 2349 states and 3071 transitions. [2020-07-21 20:05:50,221 INFO L78 Accepts]: Start accepts. Automaton has 2349 states and 3071 transitions. Word has length 138 [2020-07-21 20:05:50,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:05:50,221 INFO L479 AbstractCegarLoop]: Abstraction has 2349 states and 3071 transitions. [2020-07-21 20:05:50,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 20:05:50,222 INFO L276 IsEmpty]: Start isEmpty. Operand 2349 states and 3071 transitions. [2020-07-21 20:05:50,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-07-21 20:05:50,229 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:05:50,230 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:05:50,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:05:50,444 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:05:50,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:05:50,444 INFO L82 PathProgramCache]: Analyzing trace with hash 127065043, now seen corresponding path program 1 times [2020-07-21 20:05:50,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:05:50,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [887115814] [2020-07-21 20:05:50,445 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:05:50,553 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:05:50,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:05:50,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:05:50,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:05:50,603 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:05:50,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:05:50,700 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:05:50,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [887115814] [2020-07-21 20:05:50,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:05:50,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 20:05:50,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132032747] [2020-07-21 20:05:50,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:05:50,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:05:50,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:05:50,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:05:50,703 INFO L87 Difference]: Start difference. First operand 2349 states and 3071 transitions. Second operand 7 states. [2020-07-21 20:05:52,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:05:52,361 INFO L93 Difference]: Finished difference Result 7590 states and 10616 transitions. [2020-07-21 20:05:52,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:05:52,362 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 150 [2020-07-21 20:05:52,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:05:52,398 INFO L225 Difference]: With dead ends: 7590 [2020-07-21 20:05:52,398 INFO L226 Difference]: Without dead ends: 5251 [2020-07-21 20:05:52,406 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 295 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:05:52,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5251 states. [2020-07-21 20:05:52,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5251 to 4567. [2020-07-21 20:05:52,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4567 states. [2020-07-21 20:05:52,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4567 states to 4567 states and 5929 transitions. [2020-07-21 20:05:52,618 INFO L78 Accepts]: Start accepts. Automaton has 4567 states and 5929 transitions. Word has length 150 [2020-07-21 20:05:52,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:05:52,619 INFO L479 AbstractCegarLoop]: Abstraction has 4567 states and 5929 transitions. [2020-07-21 20:05:52,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:05:52,624 INFO L276 IsEmpty]: Start isEmpty. Operand 4567 states and 5929 transitions. [2020-07-21 20:05:52,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-21 20:05:52,641 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:05:52,642 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:05:52,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:05:52,856 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:05:52,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:05:52,857 INFO L82 PathProgramCache]: Analyzing trace with hash -763083429, now seen corresponding path program 1 times [2020-07-21 20:05:52,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:05:52,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [417151198] [2020-07-21 20:05:52,858 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:05:52,983 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:05:52,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:05:52,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:05:52,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:05:53,017 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 20:05:53,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:05:53,018 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [417151198] [2020-07-21 20:05:53,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:05:53,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:05:53,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493003175] [2020-07-21 20:05:53,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:05:53,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:05:53,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:05:53,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:05:53,020 INFO L87 Difference]: Start difference. First operand 4567 states and 5929 transitions. Second operand 3 states. [2020-07-21 20:05:53,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:05:53,565 INFO L93 Difference]: Finished difference Result 7887 states and 10249 transitions. [2020-07-21 20:05:53,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:05:53,566 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2020-07-21 20:05:53,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:05:53,597 INFO L225 Difference]: With dead ends: 7887 [2020-07-21 20:05:53,597 INFO L226 Difference]: Without dead ends: 4704 [2020-07-21 20:05:53,612 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:05:53,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4704 states. [2020-07-21 20:05:53,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4704 to 4428. [2020-07-21 20:05:53,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4428 states. [2020-07-21 20:05:53,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4428 states to 4428 states and 5614 transitions. [2020-07-21 20:05:53,792 INFO L78 Accepts]: Start accepts. Automaton has 4428 states and 5614 transitions. Word has length 154 [2020-07-21 20:05:53,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:05:53,792 INFO L479 AbstractCegarLoop]: Abstraction has 4428 states and 5614 transitions. [2020-07-21 20:05:53,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:05:53,793 INFO L276 IsEmpty]: Start isEmpty. Operand 4428 states and 5614 transitions. [2020-07-21 20:05:53,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-21 20:05:53,804 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:05:53,806 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:05:54,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:05:54,021 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:05:54,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:05:54,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1873222613, now seen corresponding path program 1 times [2020-07-21 20:05:54,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:05:54,023 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [709141663] [2020-07-21 20:05:54,023 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:05:54,132 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:05:54,133 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:05:54,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:05:54,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:05:54,173 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-21 20:05:54,173 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:05:54,173 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [709141663] [2020-07-21 20:05:54,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:05:54,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:05:54,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067794916] [2020-07-21 20:05:54,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:05:54,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:05:54,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:05:54,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:05:54,175 INFO L87 Difference]: Start difference. First operand 4428 states and 5614 transitions. Second operand 3 states. [2020-07-21 20:05:54,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:05:54,763 INFO L93 Difference]: Finished difference Result 7893 states and 10016 transitions. [2020-07-21 20:05:54,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:05:54,764 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2020-07-21 20:05:54,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:05:54,783 INFO L225 Difference]: With dead ends: 7893 [2020-07-21 20:05:54,783 INFO L226 Difference]: Without dead ends: 4428 [2020-07-21 20:05:54,793 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:05:54,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4428 states. [2020-07-21 20:05:54,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4428 to 4428. [2020-07-21 20:05:54,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4428 states. [2020-07-21 20:05:54,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4428 states to 4428 states and 5434 transitions. [2020-07-21 20:05:54,909 INFO L78 Accepts]: Start accepts. Automaton has 4428 states and 5434 transitions. Word has length 155 [2020-07-21 20:05:54,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:05:54,910 INFO L479 AbstractCegarLoop]: Abstraction has 4428 states and 5434 transitions. [2020-07-21 20:05:54,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:05:54,910 INFO L276 IsEmpty]: Start isEmpty. Operand 4428 states and 5434 transitions. [2020-07-21 20:05:54,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-21 20:05:54,922 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:05:54,922 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:05:55,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:05:55,136 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:05:55,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:05:55,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1256524215, now seen corresponding path program 1 times [2020-07-21 20:05:55,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:05:55,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1369153302] [2020-07-21 20:05:55,138 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:05:55,310 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:05:55,310 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:05:55,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 20:05:55,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:05:55,352 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:05:55,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:05:55,425 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:05:55,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1369153302] [2020-07-21 20:05:55,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:05:55,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 20:05:55,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565520860] [2020-07-21 20:05:55,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:05:55,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:05:55,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:05:55,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:05:55,427 INFO L87 Difference]: Start difference. First operand 4428 states and 5434 transitions. Second operand 7 states. [2020-07-21 20:05:56,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:05:56,268 INFO L93 Difference]: Finished difference Result 8479 states and 10446 transitions. [2020-07-21 20:05:56,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:05:56,269 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 161 [2020-07-21 20:05:56,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:05:56,289 INFO L225 Difference]: With dead ends: 8479 [2020-07-21 20:05:56,290 INFO L226 Difference]: Without dead ends: 5014 [2020-07-21 20:05:56,300 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:05:56,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5014 states. [2020-07-21 20:05:56,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5014 to 4307. [2020-07-21 20:05:56,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4307 states. [2020-07-21 20:05:56,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4307 states to 4307 states and 5252 transitions. [2020-07-21 20:05:56,407 INFO L78 Accepts]: Start accepts. Automaton has 4307 states and 5252 transitions. Word has length 161 [2020-07-21 20:05:56,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:05:56,408 INFO L479 AbstractCegarLoop]: Abstraction has 4307 states and 5252 transitions. [2020-07-21 20:05:56,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:05:56,408 INFO L276 IsEmpty]: Start isEmpty. Operand 4307 states and 5252 transitions. [2020-07-21 20:05:56,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-07-21 20:05:56,419 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:05:56,420 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:05:56,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:05:56,634 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:05:56,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:05:56,635 INFO L82 PathProgramCache]: Analyzing trace with hash -494413009, now seen corresponding path program 1 times [2020-07-21 20:05:56,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:05:56,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [432712754] [2020-07-21 20:05:56,636 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:05:56,759 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:05:56,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:05:56,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:05:56,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:05:56,875 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 20:05:56,875 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:05:56,952 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 49 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 20:05:56,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [432712754] [2020-07-21 20:05:56,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:05:56,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-07-21 20:05:56,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052490429] [2020-07-21 20:05:56,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:05:56,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:05:56,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:05:56,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:05:56,963 INFO L87 Difference]: Start difference. First operand 4307 states and 5252 transitions. Second operand 5 states. [2020-07-21 20:05:57,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:05:57,685 INFO L93 Difference]: Finished difference Result 4315 states and 5263 transitions. [2020-07-21 20:05:57,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 20:05:57,686 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 165 [2020-07-21 20:05:57,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:05:57,702 INFO L225 Difference]: With dead ends: 4315 [2020-07-21 20:05:57,702 INFO L226 Difference]: Without dead ends: 4313 [2020-07-21 20:05:57,705 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 324 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:05:57,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4313 states. [2020-07-21 20:05:57,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4313 to 4023. [2020-07-21 20:05:57,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4023 states. [2020-07-21 20:05:57,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4023 states to 4023 states and 4905 transitions. [2020-07-21 20:05:57,784 INFO L78 Accepts]: Start accepts. Automaton has 4023 states and 4905 transitions. Word has length 165 [2020-07-21 20:05:57,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:05:57,785 INFO L479 AbstractCegarLoop]: Abstraction has 4023 states and 4905 transitions. [2020-07-21 20:05:57,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:05:57,785 INFO L276 IsEmpty]: Start isEmpty. Operand 4023 states and 4905 transitions. [2020-07-21 20:05:57,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-21 20:05:57,796 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:05:57,797 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:05:58,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:05:58,012 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:05:58,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:05:58,013 INFO L82 PathProgramCache]: Analyzing trace with hash 2102366411, now seen corresponding path program 1 times [2020-07-21 20:05:58,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:05:58,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [63078021] [2020-07-21 20:05:58,015 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:05:58,149 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:05:58,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:05:58,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:05:58,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:05:58,193 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 20:05:58,194 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:05:58,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [63078021] [2020-07-21 20:05:58,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:05:58,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:05:58,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340223820] [2020-07-21 20:05:58,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:05:58,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:05:58,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:05:58,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:05:58,197 INFO L87 Difference]: Start difference. First operand 4023 states and 4905 transitions. Second operand 3 states. [2020-07-21 20:05:58,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:05:58,790 INFO L93 Difference]: Finished difference Result 4309 states and 5234 transitions. [2020-07-21 20:05:58,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:05:58,790 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-07-21 20:05:58,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:05:58,817 INFO L225 Difference]: With dead ends: 4309 [2020-07-21 20:05:58,818 INFO L226 Difference]: Without dead ends: 4307 [2020-07-21 20:05:58,820 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:05:58,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4307 states. [2020-07-21 20:05:58,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4307 to 4019. [2020-07-21 20:05:58,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4019 states. [2020-07-21 20:05:58,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4019 states to 4019 states and 4900 transitions. [2020-07-21 20:05:58,896 INFO L78 Accepts]: Start accepts. Automaton has 4019 states and 4900 transitions. Word has length 179 [2020-07-21 20:05:58,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:05:58,896 INFO L479 AbstractCegarLoop]: Abstraction has 4019 states and 4900 transitions. [2020-07-21 20:05:58,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:05:58,897 INFO L276 IsEmpty]: Start isEmpty. Operand 4019 states and 4900 transitions. [2020-07-21 20:05:58,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-07-21 20:05:58,912 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:05:58,912 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:05:59,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:05:59,126 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:05:59,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:05:59,126 INFO L82 PathProgramCache]: Analyzing trace with hash -853384892, now seen corresponding path program 1 times [2020-07-21 20:05:59,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:05:59,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [714315044] [2020-07-21 20:05:59,127 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 20:05:59,256 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:05:59,256 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:05:59,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 20:05:59,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:05:59,314 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 120 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 20:05:59,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:05:59,400 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 120 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 20:05:59,400 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [714315044] [2020-07-21 20:05:59,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:05:59,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 20:05:59,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608155447] [2020-07-21 20:05:59,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:05:59,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:05:59,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:05:59,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:05:59,403 INFO L87 Difference]: Start difference. First operand 4019 states and 4900 transitions. Second operand 7 states. [2020-07-21 20:06:01,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:06:01,325 INFO L93 Difference]: Finished difference Result 6857 states and 8402 transitions. [2020-07-21 20:06:01,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:06:01,326 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2020-07-21 20:06:01,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:06:01,327 INFO L225 Difference]: With dead ends: 6857 [2020-07-21 20:06:01,327 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 20:06:01,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:06:01,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 20:06:01,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 20:06:01,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 20:06:01,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 20:06:01,348 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 212 [2020-07-21 20:06:01,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:06:01,348 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 20:06:01,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:06:01,348 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 20:06:01,348 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 20:06:01,562 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:06:01,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 20:06:02,445 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 133 [2020-07-21 20:06:02,770 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 133 [2020-07-21 20:06:04,484 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 170 DAG size of output: 97 [2020-07-21 20:06:05,314 WARN L193 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 61 [2020-07-21 20:06:06,160 WARN L193 SmtUtils]: Spent 843.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 61 [2020-07-21 20:06:06,165 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:06:06,165 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a8~0 |old(~a8~0)|) (<= ~a16~0 |old(~a16~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a21~0 |old(~a21~0)|)) [2020-07-21 20:06:06,165 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:06:06,166 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 20:06:06,166 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 20:06:06,166 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,166 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,166 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,166 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,166 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,166 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,166 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 20:06:06,166 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 20:06:06,166 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 20:06:06,166 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 20:06:06,167 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 20:06:06,167 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 20:06:06,167 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 20:06:06,167 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 20:06:06,167 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 20:06:06,167 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 20:06:06,167 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,167 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,168 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,168 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,168 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,168 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,168 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 20:06:06,168 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 20:06:06,168 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 20:06:06,168 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 20:06:06,168 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 20:06:06,168 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 20:06:06,169 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 20:06:06,169 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 20:06:06,169 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 20:06:06,169 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 20:06:06,169 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 20:06:06,169 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 515) no Hoare annotation was computed. [2020-07-21 20:06:06,169 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 20:06:06,169 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 20:06:06,169 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 20:06:06,169 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 20:06:06,169 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,170 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,170 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,170 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,170 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,170 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 20:06:06,170 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 20:06:06,170 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 20:06:06,170 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 20:06:06,170 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 20:06:06,170 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 20:06:06,170 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 20:06:06,171 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 20:06:06,171 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 20:06:06,171 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,171 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,171 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,171 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,171 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,171 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 20:06:06,171 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 20:06:06,171 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 20:06:06,172 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 20:06:06,172 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 20:06:06,172 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 20:06:06,172 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 20:06:06,172 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 20:06:06,172 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 20:06:06,172 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 20:06:06,172 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 20:06:06,172 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 20:06:06,173 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 20:06:06,173 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,173 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,173 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,173 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,173 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,173 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 20:06:06,173 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 20:06:06,174 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 20:06:06,174 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 20:06:06,174 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 20:06:06,174 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 20:06:06,174 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 20:06:06,174 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 20:06:06,174 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 20:06:06,174 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,174 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,174 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,175 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,175 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,175 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,175 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 20:06:06,175 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,175 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 20:06:06,175 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 20:06:06,175 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 20:06:06,175 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 20:06:06,175 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 20:06:06,175 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 20:06:06,175 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 20:06:06,175 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 20:06:06,176 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 20:06:06,176 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 20:06:06,176 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 20:06:06,176 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 20:06:06,176 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 20:06:06,176 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,176 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,176 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,177 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,177 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,177 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 20:06:06,177 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 20:06:06,177 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 20:06:06,177 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 20:06:06,177 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 20:06:06,177 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 20:06:06,178 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 20:06:06,178 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 20:06:06,178 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,178 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,178 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,178 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,178 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,178 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 20:06:06,179 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 20:06:06,179 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 20:06:06,179 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 20:06:06,179 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 20:06:06,179 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 20:06:06,179 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 20:06:06,179 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 20:06:06,179 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 20:06:06,179 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 20:06:06,180 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (not (= 1 |old(~a20~0)|))) (.cse21 (not (<= |old(~a8~0)| 13))) (.cse6 (not (<= |old(~a16~0)| 5))) (.cse24 (not (< |old(~a8~0)| 15))) (.cse13 (not (<= 5 |old(~a16~0)|))) (.cse3 (= 1 ~a20~0)) (.cse7 (<= ~a8~0 |old(~a8~0)|)) (.cse19 (<= ~a16~0 |old(~a16~0)|)) (.cse9 (<= ~a16~0 5)) (.cse11 (<= 5 ~a16~0))) (let ((.cse8 (= 1 ~a7~0)) (.cse20 (not (<= |old(~a21~0)| 0))) (.cse5 (not (= 1 |old(~a7~0)|))) (.cse23 (= ~a7~0 |old(~a7~0)|)) (.cse16 (= 1 ~a21~0)) (.cse17 (or (and .cse7 .cse19 (<= ~a8~0 13) .cse11 .cse3) (and .cse7 .cse19 .cse9 .cse11 (< ~a8~0 15)))) (.cse15 (<= 14 ~a8~0)) (.cse12 (= ~a21~0 |old(~a21~0)|)) (.cse18 (not (<= 14 |old(~a8~0)|))) (.cse22 (not (<= |old(~a16~0)| 4))) (.cse14 (and (or .cse0 .cse21) (or .cse6 .cse24 .cse13))) (.cse1 (not (<= 15 |old(~a8~0)|))) (.cse2 (not (<= |old(~a7~0)| 0))) (.cse10 (<= 15 ~a8~0)) (.cse4 (not (= 1 |old(~a21~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse5 .cse6 (and .cse7 .cse8 .cse9 .cse10 .cse11 .cse12) .cse13 .cse4) (or .cse14 (and .cse15 .cse16 .cse12 .cse17) .cse18 .cse4) (or (and .cse7 .cse19 .cse8 .cse12) .cse5 .cse20 .cse21 .cse22) (or (and .cse7 .cse19 .cse23 .cse11 .cse12) .cse1 .cse2 .cse13 .cse4) (or .cse1 .cse5 (and .cse7 .cse19 .cse8 .cse10 .cse12) .cse22 .cse4) (or (and .cse8 .cse12 .cse17) .cse14 .cse20 .cse5 .cse13) (or (and .cse23 (or (and .cse7 .cse19 .cse3 .cse12) (and .cse19 .cse7 (<= ~a7~0 0) .cse9 .cse12) (and .cse16 .cse12 .cse17) (and .cse7 .cse19 .cse15 .cse12))) (and (or .cse18 .cse22 .cse24 .cse4) (or .cse2 .cse6 .cse4) (or .cse14 .cse4))) (or .cse1 .cse2 .cse10 .cse4)))) [2020-07-21 20:06:06,180 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 20:06:06,180 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,180 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,180 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,181 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,181 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 20:06:06,181 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,181 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,181 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 20:06:06,181 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 20:06:06,181 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 20:06:06,181 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 20:06:06,181 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 20:06:06,182 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 20:06:06,182 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 20:06:06,182 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 20:06:06,182 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 20:06:06,182 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 20:06:06,182 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 20:06:06,182 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 20:06:06,182 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,182 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,183 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,183 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,183 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,183 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 20:06:06,183 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,183 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 20:06:06,183 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 20:06:06,183 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 20:06:06,183 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 20:06:06,184 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 20:06:06,184 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 20:06:06,184 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 20:06:06,184 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 20:06:06,184 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 20:06:06,184 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 20:06:06,184 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 20:06:06,184 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 20:06:06,184 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 20:06:06,185 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 20:06:06,185 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,185 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,185 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,185 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,185 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,185 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:06,185 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 20:06:06,186 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 20:06:06,186 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 20:06:06,186 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 20:06:06,186 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 20:06:06,186 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 20:06:06,186 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 20:06:06,186 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 20:06:06,186 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 20:06:06,186 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 20:06:06,187 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:06:06,187 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0) (= 1 ~a21~0) (= 1 ~a20~0)) [2020-07-21 20:06:06,187 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:06:06,187 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:06:06,187 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and (<= ~a8~0 |old(~a8~0)|) (= ~a7~0 |old(~a7~0)|) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0) (= 1 ~a20~0) (= ~a21~0 |old(~a21~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (<= 5 |old(~a16~0)|)) (not (= 1 |old(~a21~0)|))) [2020-07-21 20:06:06,187 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 20:06:06,188 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse11 (<= ~a16~0 5)) (.cse4 (< ~a8~0 15)) (.cse7 (<= ~a8~0 13)) (.cse12 (<= 5 ~a16~0)) (.cse9 (= 1 ~a20~0))) (let ((.cse3 (<= ~a16~0 4)) (.cse1 (<= 15 ~a8~0)) (.cse2 (= 1 ~a21~0)) (.cse10 (<= ~a7~0 0)) (.cse6 (= ~a21~0 |old(~a21~0)|)) (.cse0 (= 1 ~a7~0)) (.cse8 (<= ~a21~0 0)) (.cse5 (or (and .cse11 .cse12 .cse4) (and .cse7 .cse12 .cse9)))) (or (and .cse0 .cse1 .cse2 .cse3) (and (<= 14 ~a8~0) .cse2 .cse4 .cse3) (and .cse5 .cse6) (not (<= |old(~a7~0)| 0)) (not (<= 5 |old(~a16~0)|)) (and .cse7 .cse0 .cse8 .cse3) (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and .cse7 .cse2 .cse9) (and .cse10 .cse1 .cse2) (not (<= |old(~a16~0)| 5)) (and .cse0 .cse11 .cse12 .cse2) (and .cse10 .cse11 .cse6) (not (= 1 |old(~a21~0)|)) (and .cse0 .cse8 .cse5)))) [2020-07-21 20:06:06,188 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 20:06:06,188 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 20:06:06,188 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse11 (<= ~a16~0 5)) (.cse4 (< ~a8~0 15)) (.cse7 (<= ~a8~0 13)) (.cse12 (<= 5 ~a16~0)) (.cse9 (= 1 ~a20~0))) (let ((.cse3 (<= ~a16~0 4)) (.cse1 (<= 15 ~a8~0)) (.cse2 (= 1 ~a21~0)) (.cse10 (<= ~a7~0 0)) (.cse6 (= ~a21~0 |old(~a21~0)|)) (.cse0 (= 1 ~a7~0)) (.cse8 (<= ~a21~0 0)) (.cse5 (or (and .cse11 .cse12 .cse4) (and .cse7 .cse12 .cse9)))) (or (and .cse0 .cse1 .cse2 .cse3) (and (<= 14 ~a8~0) .cse2 .cse4 .cse3) (and .cse5 .cse6) (not (<= |old(~a7~0)| 0)) (not (<= 5 |old(~a16~0)|)) (and .cse7 .cse0 .cse8 .cse3) (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and .cse7 .cse2 .cse9) (and .cse10 .cse1 .cse2) (not (<= |old(~a16~0)| 5)) (and .cse0 .cse11 .cse12 .cse2) (and .cse10 .cse11 .cse6) (not (= 1 |old(~a21~0)|)) (and .cse0 .cse8 .cse5)))) [2020-07-21 20:06:06,188 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 20:06:06,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:06:06 BoogieIcfgContainer [2020-07-21 20:06:06,211 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:06:06,213 INFO L168 Benchmark]: Toolchain (without parser) took 25012.09 ms. Allocated memory was 143.1 MB in the beginning and 590.3 MB in the end (delta: 447.2 MB). Free memory was 98.8 MB in the beginning and 480.9 MB in the end (delta: -382.2 MB). Peak memory consumption was 480.4 MB. Max. memory is 7.1 GB. [2020-07-21 20:06:06,213 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 143.1 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 20:06:06,214 INFO L168 Benchmark]: CACSL2BoogieTranslator took 778.42 ms. Allocated memory was 143.1 MB in the beginning and 203.4 MB in the end (delta: 60.3 MB). Free memory was 98.6 MB in the beginning and 166.9 MB in the end (delta: -68.3 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2020-07-21 20:06:06,215 INFO L168 Benchmark]: Boogie Preprocessor took 124.03 ms. Allocated memory is still 203.4 MB. Free memory was 166.9 MB in the beginning and 161.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2020-07-21 20:06:06,216 INFO L168 Benchmark]: RCFGBuilder took 1333.61 ms. Allocated memory was 203.4 MB in the beginning and 232.3 MB in the end (delta: 28.8 MB). Free memory was 161.7 MB in the beginning and 176.4 MB in the end (delta: -14.7 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. [2020-07-21 20:06:06,216 INFO L168 Benchmark]: TraceAbstraction took 22766.82 ms. Allocated memory was 232.3 MB in the beginning and 590.3 MB in the end (delta: 358.1 MB). Free memory was 176.4 MB in the beginning and 480.9 MB in the end (delta: -304.5 MB). Peak memory consumption was 468.9 MB. Max. memory is 7.1 GB. [2020-07-21 20:06:06,220 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 143.1 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 778.42 ms. Allocated memory was 143.1 MB in the beginning and 203.4 MB in the end (delta: 60.3 MB). Free memory was 98.6 MB in the beginning and 166.9 MB in the end (delta: -68.3 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.03 ms. Allocated memory is still 203.4 MB. Free memory was 166.9 MB in the beginning and 161.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1333.61 ms. Allocated memory was 203.4 MB in the beginning and 232.3 MB in the end (delta: 28.8 MB). Free memory was 161.7 MB in the beginning and 176.4 MB in the end (delta: -14.7 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22766.82 ms. Allocated memory was 232.3 MB in the beginning and 590.3 MB in the end (delta: 358.1 MB). Free memory was 176.4 MB in the beginning and 480.9 MB in the end (delta: -304.5 MB). Peak memory consumption was 468.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 515]: 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: 583]: Loop Invariant Derived loop invariant: ((((((((((((((((1 == a7 && 15 <= a8) && 1 == a21) && a16 <= 4) || (((14 <= a8 && 1 == a21) && a8 < 15) && a16 <= 4)) || ((((a16 <= 5 && 5 <= a16) && a8 < 15) || ((a8 <= 13 && 5 <= a16) && 1 == a20)) && a21 == \old(a21))) || !(\old(a7) <= 0)) || !(5 <= \old(a16))) || (((a8 <= 13 && 1 == a7) && a21 <= 0) && a16 <= 4)) || !(1 == \old(a20))) || !(15 <= \old(a8))) || ((a8 <= 13 && 1 == a21) && 1 == a20)) || ((a7 <= 0 && 15 <= a8) && 1 == a21)) || !(\old(a16) <= 5)) || (((1 == a7 && a16 <= 5) && 5 <= a16) && 1 == a21)) || ((a7 <= 0 && a16 <= 5) && a21 == \old(a21))) || !(1 == \old(a21))) || ((1 == a7 && a21 <= 0) && (((a16 <= 5 && 5 <= a16) && a8 < 15) || ((a8 <= 13 && 5 <= a16) && 1 == a20))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.0s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 11.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 388 SDtfs, 3444 SDslu, 355 SDs, 0 SdLazy, 7754 SolverSat, 1183 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2531 GetRequests, 2481 SyntacticMatches, 4 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4567occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 3034 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 173 PreInvPairs, 253 NumberOfFragments, 871 HoareAnnotationTreeSize, 173 FomulaSimplifications, 169930 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 57084 FormulaSimplificationTreeSizeReductionInter, 3.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1692 NumberOfCodeBlocks, 1692 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2502 ConstructedInterpolants, 0 QuantifiedInterpolants, 868536 SizeOfPredicates, 15 NumberOfNonLiveVariables, 4686 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 16 InterpolantComputations, 6 PerfectInterpolantSequences, 710/755 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...