/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 NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 14:01:37,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 14:01:37,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 14:01:37,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 14:01:37,270 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 14:01:37,271 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 14:01:37,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 14:01:37,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 14:01:37,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 14:01:37,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 14:01:37,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 14:01:37,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 14:01:37,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 14:01:37,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 14:01:37,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 14:01:37,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 14:01:37,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 14:01:37,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 14:01:37,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 14:01:37,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 14:01:37,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 14:01:37,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 14:01:37,291 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 14:01:37,292 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 14:01:37,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 14:01:37,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 14:01:37,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 14:01:37,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 14:01:37,309 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 14:01:37,332 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 14:01:37,332 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 14:01:37,335 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 14:01:37,335 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 14:01:37,335 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 14:01:37,335 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 14:01:37,336 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 14:01:37,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 14:01:37,336 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 14:01:37,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 14:01:37,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 14:01:37,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 14:01:37,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 14:01:37,338 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 14:01:37,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 14:01:37,338 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 14:01:37,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 14:01:37,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 14:01:37,339 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 14:01:37,339 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 14:01:37,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 14:01:37,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:01:37,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 14:01:37,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 14:01:37,340 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 14:01:37,340 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 14:01:37,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:01:37,341 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 14:01:37,341 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 14:01:37,341 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 -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 14:01:37,642 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 14:01:37,655 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 14:01:37,659 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 14:01:37,660 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 14:01:37,661 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 14:01:37,662 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label05.c [2020-07-20 14:01:37,735 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b760b7450/60d99dfb23d74d4098f22c9156e257ff/FLAGc729f9fea [2020-07-20 14:01:38,296 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 14:01:38,297 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label05.c [2020-07-20 14:01:38,308 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b760b7450/60d99dfb23d74d4098f22c9156e257ff/FLAGc729f9fea [2020-07-20 14:01:38,499 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b760b7450/60d99dfb23d74d4098f22c9156e257ff [2020-07-20 14:01:38,510 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 14:01:38,513 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 14:01:38,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 14:01:38,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 14:01:38,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 14:01:38,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:01:38" (1/1) ... [2020-07-20 14:01:38,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ff48b28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:01:38, skipping insertion in model container [2020-07-20 14:01:38,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:01:38" (1/1) ... [2020-07-20 14:01:38,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 14:01:38,595 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 14:01:39,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:01:39,022 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 14:01:39,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:01:39,317 INFO L208 MainTranslator]: Completed translation [2020-07-20 14:01:39,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:01:39 WrapperNode [2020-07-20 14:01:39,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 14:01:39,319 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 14:01:39,319 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 14:01:39,319 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 14:01:39,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:01:39" (1/1) ... [2020-07-20 14:01:39,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:01:39" (1/1) ... [2020-07-20 14:01:39,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:01:39" (1/1) ... [2020-07-20 14:01:39,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:01:39" (1/1) ... [2020-07-20 14:01:39,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:01:39" (1/1) ... [2020-07-20 14:01:39,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:01:39" (1/1) ... [2020-07-20 14:01:39,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:01:39" (1/1) ... [2020-07-20 14:01:39,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 14:01:39,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 14:01:39,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 14:01:39,428 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 14:01:39,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:01:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:01:39,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 14:01:39,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 14:01:39,495 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 14:01:39,495 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 14:01:39,495 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 14:01:39,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 14:01:39,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 14:01:39,495 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 14:01:39,496 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 14:01:39,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 14:01:39,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 14:01:40,588 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 14:01:40,588 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 14:01:40,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:01:40 BoogieIcfgContainer [2020-07-20 14:01:40,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 14:01:40,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 14:01:40,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 14:01:40,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 14:01:40,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:01:38" (1/3) ... [2020-07-20 14:01:40,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a362b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:01:40, skipping insertion in model container [2020-07-20 14:01:40,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:01:39" (2/3) ... [2020-07-20 14:01:40,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a362b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:01:40, skipping insertion in model container [2020-07-20 14:01:40,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:01:40" (3/3) ... [2020-07-20 14:01:40,603 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label05.c [2020-07-20 14:01:40,614 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 14:01:40,623 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 14:01:40,637 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 14:01:40,663 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 14:01:40,663 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 14:01:40,664 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 14:01:40,664 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 14:01:40,664 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 14:01:40,664 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 14:01:40,664 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 14:01:40,665 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 14:01:40,693 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-20 14:01:40,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-07-20 14:01:40,705 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:01:40,706 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] [2020-07-20 14:01:40,706 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:01:40,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:01:40,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1904695938, now seen corresponding path program 1 times [2020-07-20 14:01:40,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:01:40,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [91435276] [2020-07-20 14:01:40,722 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:01:40,908 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:01:40,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:01:40,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:01:40,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:01:41,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:01:41,018 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:01:41,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [91435276] [2020-07-20 14:01:41,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:01:41,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:01:41,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925507707] [2020-07-20 14:01:41,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:01:41,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:01:41,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:01:41,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:01:41,045 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-20 14:01:42,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:01:42,084 INFO L93 Difference]: Finished difference Result 572 states and 963 transitions. [2020-07-20 14:01:42,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:01:42,088 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 100 [2020-07-20 14:01:42,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:01:42,119 INFO L225 Difference]: With dead ends: 572 [2020-07-20 14:01:42,119 INFO L226 Difference]: Without dead ends: 278 [2020-07-20 14:01:42,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:01:42,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-20 14:01:42,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-20 14:01:42,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-20 14:01:42,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2020-07-20 14:01:42,244 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 100 [2020-07-20 14:01:42,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:01:42,246 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2020-07-20 14:01:42,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:01:42,246 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2020-07-20 14:01:42,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-07-20 14:01:42,259 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:01:42,260 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] [2020-07-20 14:01:42,473 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:01:42,473 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:01:42,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:01:42,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1236531093, now seen corresponding path program 1 times [2020-07-20 14:01:42,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:01:42,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1521330284] [2020-07-20 14:01:42,476 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:01:42,590 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:01:42,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:01:42,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:01:42,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:01:42,643 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:01:42,643 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:01:42,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1521330284] [2020-07-20 14:01:42,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:01:42,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:01:42,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279644593] [2020-07-20 14:01:42,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:01:42,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:01:42,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:01:42,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:01:42,647 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 5 states. [2020-07-20 14:01:43,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:01:43,541 INFO L93 Difference]: Finished difference Result 842 states and 1218 transitions. [2020-07-20 14:01:43,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:01:43,542 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 110 [2020-07-20 14:01:43,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:01:43,548 INFO L225 Difference]: With dead ends: 842 [2020-07-20 14:01:43,548 INFO L226 Difference]: Without dead ends: 570 [2020-07-20 14:01:43,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 14:01:43,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-07-20 14:01:43,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 556. [2020-07-20 14:01:43,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-07-20 14:01:43,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 785 transitions. [2020-07-20 14:01:43,589 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 785 transitions. Word has length 110 [2020-07-20 14:01:43,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:01:43,589 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 785 transitions. [2020-07-20 14:01:43,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:01:43,590 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 785 transitions. [2020-07-20 14:01:43,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-07-20 14:01:43,592 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:01:43,592 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] [2020-07-20 14:01:43,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:01:43,809 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:01:43,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:01:43,810 INFO L82 PathProgramCache]: Analyzing trace with hash 235879383, now seen corresponding path program 1 times [2020-07-20 14:01:43,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:01:43,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1197067800] [2020-07-20 14:01:43,811 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:01:43,927 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:01:43,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:01:43,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 14:01:43,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:01:43,965 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:01:43,966 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:01:43,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1197067800] [2020-07-20 14:01:43,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:01:43,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:01:43,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900244035] [2020-07-20 14:01:43,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:01:43,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:01:43,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:01:43,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:01:43,969 INFO L87 Difference]: Start difference. First operand 556 states and 785 transitions. Second operand 3 states. [2020-07-20 14:01:44,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:01:44,541 INFO L93 Difference]: Finished difference Result 1652 states and 2385 transitions. [2020-07-20 14:01:44,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:01:44,541 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-07-20 14:01:44,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:01:44,550 INFO L225 Difference]: With dead ends: 1652 [2020-07-20 14:01:44,550 INFO L226 Difference]: Without dead ends: 1102 [2020-07-20 14:01:44,552 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:01:44,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2020-07-20 14:01:44,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1102. [2020-07-20 14:01:44,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1102 states. [2020-07-20 14:01:44,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1504 transitions. [2020-07-20 14:01:44,610 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1504 transitions. Word has length 111 [2020-07-20 14:01:44,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:01:44,611 INFO L479 AbstractCegarLoop]: Abstraction has 1102 states and 1504 transitions. [2020-07-20 14:01:44,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:01:44,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1504 transitions. [2020-07-20 14:01:44,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-07-20 14:01:44,615 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:01:44,616 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] [2020-07-20 14:01:44,829 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:01:44,830 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:01:44,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:01:44,831 INFO L82 PathProgramCache]: Analyzing trace with hash -2022552526, now seen corresponding path program 1 times [2020-07-20 14:01:44,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:01:44,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [573208369] [2020-07-20 14:01:44,833 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:01:44,979 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:01:44,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:01:44,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:01:44,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:01:45,054 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:01:45,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:01:45,132 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:01:45,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [573208369] [2020-07-20 14:01:45,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:01:45,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-20 14:01:45,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165029913] [2020-07-20 14:01:45,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 14:01:45,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:01:45,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 14:01:45,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-20 14:01:45,136 INFO L87 Difference]: Start difference. First operand 1102 states and 1504 transitions. Second operand 8 states. [2020-07-20 14:01:47,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:01:47,072 INFO L93 Difference]: Finished difference Result 4220 states and 6124 transitions. [2020-07-20 14:01:47,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 14:01:47,073 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 119 [2020-07-20 14:01:47,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:01:47,103 INFO L225 Difference]: With dead ends: 4220 [2020-07-20 14:01:47,103 INFO L226 Difference]: Without dead ends: 3124 [2020-07-20 14:01:47,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-07-20 14:01:47,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3124 states. [2020-07-20 14:01:47,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3124 to 2349. [2020-07-20 14:01:47,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2349 states. [2020-07-20 14:01:47,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2349 states to 2349 states and 3071 transitions. [2020-07-20 14:01:47,302 INFO L78 Accepts]: Start accepts. Automaton has 2349 states and 3071 transitions. Word has length 119 [2020-07-20 14:01:47,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:01:47,304 INFO L479 AbstractCegarLoop]: Abstraction has 2349 states and 3071 transitions. [2020-07-20 14:01:47,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 14:01:47,305 INFO L276 IsEmpty]: Start isEmpty. Operand 2349 states and 3071 transitions. [2020-07-20 14:01:47,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-07-20 14:01:47,316 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:01:47,316 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] [2020-07-20 14:01:47,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:01:47,532 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:01:47,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:01:47,532 INFO L82 PathProgramCache]: Analyzing trace with hash 308691738, now seen corresponding path program 1 times [2020-07-20 14:01:47,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:01:47,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1633239763] [2020-07-20 14:01:47,534 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:01:47,668 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:01:47,669 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:01:47,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:01:47,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:01:47,780 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:01:47,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:01:47,854 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:01:47,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1633239763] [2020-07-20 14:01:47,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:01:47,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:01:47,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469124133] [2020-07-20 14:01:47,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:01:47,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:01:47,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:01:47,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:01:47,858 INFO L87 Difference]: Start difference. First operand 2349 states and 3071 transitions. Second operand 7 states. [2020-07-20 14:01:49,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:01:49,574 INFO L93 Difference]: Finished difference Result 7590 states and 10616 transitions. [2020-07-20 14:01:49,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:01:49,575 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 131 [2020-07-20 14:01:49,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:01:49,616 INFO L225 Difference]: With dead ends: 7590 [2020-07-20 14:01:49,617 INFO L226 Difference]: Without dead ends: 5251 [2020-07-20 14:01:49,627 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 257 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:01:49,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5251 states. [2020-07-20 14:01:49,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5251 to 4567. [2020-07-20 14:01:49,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4567 states. [2020-07-20 14:01:49,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4567 states to 4567 states and 5929 transitions. [2020-07-20 14:01:49,821 INFO L78 Accepts]: Start accepts. Automaton has 4567 states and 5929 transitions. Word has length 131 [2020-07-20 14:01:49,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:01:49,821 INFO L479 AbstractCegarLoop]: Abstraction has 4567 states and 5929 transitions. [2020-07-20 14:01:49,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:01:49,825 INFO L276 IsEmpty]: Start isEmpty. Operand 4567 states and 5929 transitions. [2020-07-20 14:01:49,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-07-20 14:01:49,836 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:01:49,837 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] [2020-07-20 14:01:50,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:01:50,052 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:01:50,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:01:50,053 INFO L82 PathProgramCache]: Analyzing trace with hash -720996718, now seen corresponding path program 1 times [2020-07-20 14:01:50,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:01:50,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1090843862] [2020-07-20 14:01:50,054 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:01:50,163 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:01:50,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:01:50,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:01:50,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:01:50,205 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-20 14:01:50,206 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:01:50,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1090843862] [2020-07-20 14:01:50,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:01:50,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:01:50,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712629007] [2020-07-20 14:01:50,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:01:50,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:01:50,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:01:50,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:01:50,208 INFO L87 Difference]: Start difference. First operand 4567 states and 5929 transitions. Second operand 3 states. [2020-07-20 14:01:50,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:01:50,909 INFO L93 Difference]: Finished difference Result 11993 states and 15911 transitions. [2020-07-20 14:01:50,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:01:50,910 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2020-07-20 14:01:50,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:01:50,956 INFO L225 Difference]: With dead ends: 11993 [2020-07-20 14:01:50,957 INFO L226 Difference]: Without dead ends: 7436 [2020-07-20 14:01:50,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:01:50,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7436 states. [2020-07-20 14:01:51,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7436 to 5665. [2020-07-20 14:01:51,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5665 states. [2020-07-20 14:01:51,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5665 states to 5665 states and 7367 transitions. [2020-07-20 14:01:51,158 INFO L78 Accepts]: Start accepts. Automaton has 5665 states and 7367 transitions. Word has length 135 [2020-07-20 14:01:51,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:01:51,159 INFO L479 AbstractCegarLoop]: Abstraction has 5665 states and 7367 transitions. [2020-07-20 14:01:51,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:01:51,160 INFO L276 IsEmpty]: Start isEmpty. Operand 5665 states and 7367 transitions. [2020-07-20 14:01:51,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-20 14:01:51,175 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:01:51,175 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] [2020-07-20 14:01:51,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:01:51,390 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:01:51,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:01:51,390 INFO L82 PathProgramCache]: Analyzing trace with hash -676972618, now seen corresponding path program 1 times [2020-07-20 14:01:51,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:01:51,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2042063657] [2020-07-20 14:01:51,391 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:01:51,498 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:01:51,498 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:01:51,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 14:01:51,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:01:51,545 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:01:51,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:01:51,631 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:01:51,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2042063657] [2020-07-20 14:01:51,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:01:51,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:01:51,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763535803] [2020-07-20 14:01:51,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:01:51,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:01:51,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:01:51,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:01:51,634 INFO L87 Difference]: Start difference. First operand 5665 states and 7367 transitions. Second operand 7 states. [2020-07-20 14:01:52,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:01:52,541 INFO L93 Difference]: Finished difference Result 10413 states and 13551 transitions. [2020-07-20 14:01:52,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:01:52,542 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2020-07-20 14:01:52,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:01:52,572 INFO L225 Difference]: With dead ends: 10413 [2020-07-20 14:01:52,572 INFO L226 Difference]: Without dead ends: 6245 [2020-07-20 14:01:52,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:01:52,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6245 states. [2020-07-20 14:01:52,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6245 to 5669. [2020-07-20 14:01:52,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5669 states. [2020-07-20 14:01:52,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5669 states to 5669 states and 7057 transitions. [2020-07-20 14:01:52,730 INFO L78 Accepts]: Start accepts. Automaton has 5669 states and 7057 transitions. Word has length 142 [2020-07-20 14:01:52,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:01:52,732 INFO L479 AbstractCegarLoop]: Abstraction has 5669 states and 7057 transitions. [2020-07-20 14:01:52,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:01:52,732 INFO L276 IsEmpty]: Start isEmpty. Operand 5669 states and 7057 transitions. [2020-07-20 14:01:52,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-20 14:01:52,752 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:01:52,752 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] [2020-07-20 14:01:52,966 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:01:52,967 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:01:52,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:01:52,968 INFO L82 PathProgramCache]: Analyzing trace with hash 809347390, now seen corresponding path program 1 times [2020-07-20 14:01:52,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:01:52,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1404147452] [2020-07-20 14:01:52,969 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:01:53,072 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:01:53,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:01:53,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:01:53,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:01:53,123 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 14:01:53,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:01:53,255 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 49 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 14:01:53,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1404147452] [2020-07-20 14:01:53,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:01:53,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-07-20 14:01:53,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691468059] [2020-07-20 14:01:53,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:01:53,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:01:53,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:01:53,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:01:53,258 INFO L87 Difference]: Start difference. First operand 5669 states and 7057 transitions. Second operand 5 states. [2020-07-20 14:01:53,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:01:53,891 INFO L93 Difference]: Finished difference Result 5677 states and 7068 transitions. [2020-07-20 14:01:53,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 14:01:53,892 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2020-07-20 14:01:53,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:01:53,923 INFO L225 Difference]: With dead ends: 5677 [2020-07-20 14:01:53,927 INFO L226 Difference]: Without dead ends: 5675 [2020-07-20 14:01:53,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 286 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:01:53,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5675 states. [2020-07-20 14:01:54,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5675 to 5387. [2020-07-20 14:01:54,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5387 states. [2020-07-20 14:01:54,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5387 states to 5387 states and 6705 transitions. [2020-07-20 14:01:54,049 INFO L78 Accepts]: Start accepts. Automaton has 5387 states and 6705 transitions. Word has length 146 [2020-07-20 14:01:54,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:01:54,050 INFO L479 AbstractCegarLoop]: Abstraction has 5387 states and 6705 transitions. [2020-07-20 14:01:54,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:01:54,050 INFO L276 IsEmpty]: Start isEmpty. Operand 5387 states and 6705 transitions. [2020-07-20 14:01:54,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-20 14:01:54,062 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:01:54,063 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:01:54,276 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:01:54,277 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:01:54,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:01:54,277 INFO L82 PathProgramCache]: Analyzing trace with hash -742331683, now seen corresponding path program 1 times [2020-07-20 14:01:54,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:01:54,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881983978] [2020-07-20 14:01:54,278 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:01:54,384 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:01:54,384 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:01:54,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:01:54,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:01:54,426 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-20 14:01:54,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:01:54,487 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-20 14:01:54,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881983978] [2020-07-20 14:01:54,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:01:54,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:01:54,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480620173] [2020-07-20 14:01:54,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:01:54,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:01:54,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:01:54,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:01:54,490 INFO L87 Difference]: Start difference. First operand 5387 states and 6705 transitions. Second operand 6 states. [2020-07-20 14:01:55,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:01:55,376 INFO L93 Difference]: Finished difference Result 9692 states and 12174 transitions. [2020-07-20 14:01:55,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:01:55,377 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 151 [2020-07-20 14:01:55,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:01:55,396 INFO L225 Difference]: With dead ends: 9692 [2020-07-20 14:01:55,396 INFO L226 Difference]: Without dead ends: 6096 [2020-07-20 14:01:55,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 298 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:01:55,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6096 states. [2020-07-20 14:01:55,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6096 to 5808. [2020-07-20 14:01:55,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5808 states. [2020-07-20 14:01:55,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5808 states to 5808 states and 7020 transitions. [2020-07-20 14:01:55,510 INFO L78 Accepts]: Start accepts. Automaton has 5808 states and 7020 transitions. Word has length 151 [2020-07-20 14:01:55,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:01:55,510 INFO L479 AbstractCegarLoop]: Abstraction has 5808 states and 7020 transitions. [2020-07-20 14:01:55,510 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:01:55,510 INFO L276 IsEmpty]: Start isEmpty. Operand 5808 states and 7020 transitions. [2020-07-20 14:01:55,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-20 14:01:55,523 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:01:55,523 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:01:55,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:01:55,738 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:01:55,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:01:55,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1695161737, now seen corresponding path program 1 times [2020-07-20 14:01:55,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:01:55,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [874421811] [2020-07-20 14:01:55,740 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:01:55,857 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:01:55,857 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:01:55,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:01:55,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:01:55,892 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-20 14:01:55,892 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:01:55,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [874421811] [2020-07-20 14:01:55,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:01:55,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:01:55,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368886038] [2020-07-20 14:01:55,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:01:55,894 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:01:55,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:01:55,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:01:55,894 INFO L87 Difference]: Start difference. First operand 5808 states and 7020 transitions. Second operand 3 states. [2020-07-20 14:01:56,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:01:56,416 INFO L93 Difference]: Finished difference Result 5810 states and 7021 transitions. [2020-07-20 14:01:56,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:01:56,416 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2020-07-20 14:01:56,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:01:56,435 INFO L225 Difference]: With dead ends: 5810 [2020-07-20 14:01:56,436 INFO L226 Difference]: Without dead ends: 5808 [2020-07-20 14:01:56,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:01:56,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5808 states. [2020-07-20 14:01:56,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5808 to 5808. [2020-07-20 14:01:56,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5808 states. [2020-07-20 14:01:56,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5808 states to 5808 states and 7019 transitions. [2020-07-20 14:01:56,596 INFO L78 Accepts]: Start accepts. Automaton has 5808 states and 7019 transitions. Word has length 161 [2020-07-20 14:01:56,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:01:56,596 INFO L479 AbstractCegarLoop]: Abstraction has 5808 states and 7019 transitions. [2020-07-20 14:01:56,596 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:01:56,596 INFO L276 IsEmpty]: Start isEmpty. Operand 5808 states and 7019 transitions. [2020-07-20 14:01:56,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-07-20 14:01:56,614 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:01:56,614 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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] [2020-07-20 14:01:56,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:01:56,828 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:01:56,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:01:56,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1628827276, now seen corresponding path program 1 times [2020-07-20 14:01:56,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:01:56,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [92651182] [2020-07-20 14:01:56,829 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:01:56,970 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:01:56,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:01:56,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 14:01:56,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:01:57,017 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-07-20 14:01:57,017 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:01:57,107 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 142 proven. 16 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-07-20 14:01:57,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [92651182] [2020-07-20 14:01:57,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:01:57,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:01:57,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690972932] [2020-07-20 14:01:57,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:01:57,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:01:57,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:01:57,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:01:57,110 INFO L87 Difference]: Start difference. First operand 5808 states and 7019 transitions. Second operand 7 states. [2020-07-20 14:01:58,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:01:58,572 INFO L93 Difference]: Finished difference Result 9081 states and 11033 transitions. [2020-07-20 14:01:58,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:01:58,576 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 214 [2020-07-20 14:01:58,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:01:58,576 INFO L225 Difference]: With dead ends: 9081 [2020-07-20 14:01:58,576 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 14:01:58,594 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:01:58,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 14:01:58,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 14:01:58,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 14:01:58,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 14:01:58,595 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 214 [2020-07-20 14:01:58,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:01:58,595 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 14:01:58,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:01:58,596 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 14:01:58,596 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 14:01:58,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:01:58,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 14:01:59,856 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 143 [2020-07-20 14:02:00,306 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 143 [2020-07-20 14:02:03,117 WARN L193 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 225 DAG size of output: 112 [2020-07-20 14:02:04,015 WARN L193 SmtUtils]: Spent 876.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 64 [2020-07-20 14:02:04,863 WARN L193 SmtUtils]: Spent 845.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 64 [2020-07-20 14:02:04,867 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:02:04,867 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)|) (<= |old(~a16~0)| ~a16~0) (= ~a21~0 |old(~a21~0)|)) [2020-07-20 14:02:04,868 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:02:04,868 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-20 14:02:04,868 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-20 14:02:04,868 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,868 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,869 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,869 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,869 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,869 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,869 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-20 14:02:04,869 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-20 14:02:04,869 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-20 14:02:04,869 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-20 14:02:04,869 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-20 14:02:04,870 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-20 14:02:04,870 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-20 14:02:04,870 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-20 14:02:04,870 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-20 14:02:04,870 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-20 14:02:04,870 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,870 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,870 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,871 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,871 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,871 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,871 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-20 14:02:04,871 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-20 14:02:04,871 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-20 14:02:04,871 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-20 14:02:04,871 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-20 14:02:04,872 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-20 14:02:04,872 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-20 14:02:04,872 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-20 14:02:04,872 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-20 14:02:04,872 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-20 14:02:04,872 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-20 14:02:04,872 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 458) no Hoare annotation was computed. [2020-07-20 14:02:04,873 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-20 14:02:04,873 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-20 14:02:04,873 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-20 14:02:04,873 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-20 14:02:04,873 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,873 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,873 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,873 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,874 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,874 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-20 14:02:04,874 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-20 14:02:04,874 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-20 14:02:04,874 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-20 14:02:04,874 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-20 14:02:04,874 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-20 14:02:04,874 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-20 14:02:04,874 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-20 14:02:04,874 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-20 14:02:04,874 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,875 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,875 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,875 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,875 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,875 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-20 14:02:04,875 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-20 14:02:04,875 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-20 14:02:04,875 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-20 14:02:04,876 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-20 14:02:04,876 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-20 14:02:04,876 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-20 14:02:04,876 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-20 14:02:04,876 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-20 14:02:04,876 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-20 14:02:04,876 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-20 14:02:04,876 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-20 14:02:04,876 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-20 14:02:04,877 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,877 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,877 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,877 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,877 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,877 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-20 14:02:04,877 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-20 14:02:04,877 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-20 14:02:04,877 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-20 14:02:04,878 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-20 14:02:04,878 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-20 14:02:04,878 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-20 14:02:04,878 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-20 14:02:04,878 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-20 14:02:04,878 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,878 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,878 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,878 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,878 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,878 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,879 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-20 14:02:04,879 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,879 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-20 14:02:04,879 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-20 14:02:04,879 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-20 14:02:04,879 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-20 14:02:04,879 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-20 14:02:04,879 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-20 14:02:04,879 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-20 14:02:04,879 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-20 14:02:04,879 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-20 14:02:04,879 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-20 14:02:04,879 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-20 14:02:04,880 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-20 14:02:04,880 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-20 14:02:04,880 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,880 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,880 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,880 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,880 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,880 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-20 14:02:04,880 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-20 14:02:04,880 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-20 14:02:04,880 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-20 14:02:04,880 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-20 14:02:04,880 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-20 14:02:04,881 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-20 14:02:04,881 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-20 14:02:04,881 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,881 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,881 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,881 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,881 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,881 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-20 14:02:04,881 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-20 14:02:04,881 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-20 14:02:04,881 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-20 14:02:04,881 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-20 14:02:04,881 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-20 14:02:04,882 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-20 14:02:04,882 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-20 14:02:04,882 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-20 14:02:04,882 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-20 14:02:04,882 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (not (= 1 |old(~a20~0)|))) (.cse8 (not (<= |old(~a8~0)| 13)))) (let ((.cse19 (or .cse0 .cse8)) (.cse20 (not (<= |old(~a16~0)| 5))) (.cse21 (not (< |old(~a8~0)| 15)))) (let ((.cse25 (<= ~a16~0 5)) (.cse27 (< ~a8~0 15)) (.cse11 (<= ~a8~0 |old(~a8~0)|)) (.cse12 (<= ~a16~0 |old(~a16~0)|)) (.cse13 (<= ~a8~0 13)) (.cse18 (<= ~a17~0 0)) (.cse3 (= 1 ~a20~0)) (.cse14 (= ~a21~0 |old(~a21~0)|)) (.cse26 (and .cse19 (or .cse0 .cse20 .cse21))) (.cse5 (not (<= |old(~a17~0)| 0)))) (let ((.cse9 (not (<= |old(~a16~0)| 4))) (.cse7 (and (or .cse26 .cse5) (or .cse20 .cse21 .cse5))) (.cse23 (= ~a7~0 |old(~a7~0)|)) (.cse15 (and (or (and .cse11 .cse12 .cse18 .cse25 .cse27) (and .cse11 .cse12 .cse13 .cse18 .cse3)) .cse14)) (.cse24 (<= 15 ~a8~0)) (.cse6 (not (<= |old(~a21~0)| 0))) (.cse10 (not (= 1 |old(~a7~0)|))) (.cse16 (= 1 ~a7~0)) (.cse17 (<= |old(~a16~0)| ~a16~0)) (.cse22 (not (<= 5 |old(~a16~0)|))) (.cse1 (not (<= 15 |old(~a8~0)|))) (.cse2 (not (<= |old(~a7~0)| 0))) (.cse4 (not (= 1 |old(~a21~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or (and (or .cse6 .cse7) (or .cse6 .cse8 .cse9)) .cse10 (and (or (and .cse11 .cse12 .cse13 .cse14 (<= ~a16~0 4)) .cse15) .cse16 .cse17)) (or .cse18 (and .cse19 (or .cse20 .cse21)) .cse4 .cse22 .cse5) (or .cse11 .cse0 .cse6 .cse10 .cse8) (or .cse1 .cse2 (and .cse11 .cse12 .cse23 .cse17 .cse24 .cse14) .cse4) (or .cse1 .cse10 (and .cse11 .cse12 .cse16 .cse17 .cse18 .cse24 .cse14) .cse9 .cse4 .cse5) (or .cse0 .cse1 .cse2 .cse3 .cse22 .cse4) (or (and (or (and (or .cse0 .cse2 .cse8) (or .cse2 .cse20)) .cse4) (or .cse0 .cse8 .cse9 .cse4) (or .cse7 .cse4)) (and .cse23 .cse17 (or (and .cse12 .cse11 (<= ~a7~0 0) .cse25 .cse14) (and .cse11 .cse12 .cse13 .cse3 .cse14) .cse15))) (or .cse1 .cse10 .cse20 (and .cse11 .cse16 .cse18 .cse25 .cse24 (<= 5 ~a16~0) .cse14) .cse22 .cse4 .cse5) (or .cse6 .cse10 .cse26 (and .cse16 (or (and .cse25 .cse27 .cse3) (and .cse12 .cse13 .cse3)) .cse17 .cse14) .cse22) (or .cse1 .cse18 .cse2 .cse4 .cse5)))))) [2020-07-20 14:02:04,882 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-20 14:02:04,882 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,882 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,882 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,882 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,883 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-20 14:02:04,883 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,883 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,883 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-20 14:02:04,883 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-20 14:02:04,883 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-20 14:02:04,883 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-20 14:02:04,883 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-20 14:02:04,883 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-20 14:02:04,883 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-20 14:02:04,883 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-20 14:02:04,883 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-20 14:02:04,883 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-20 14:02:04,883 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-20 14:02:04,884 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-20 14:02:04,884 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,884 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,884 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,884 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,884 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,884 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-20 14:02:04,884 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,884 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-20 14:02:04,884 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-20 14:02:04,884 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-20 14:02:04,884 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-20 14:02:04,884 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-20 14:02:04,884 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-20 14:02:04,885 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-20 14:02:04,885 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-20 14:02:04,885 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-20 14:02:04,885 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-20 14:02:04,885 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-20 14:02:04,885 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-20 14:02:04,885 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-20 14:02:04,885 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-20 14:02:04,885 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,885 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,885 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,885 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,885 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,885 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:02:04,886 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-20 14:02:04,886 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-20 14:02:04,886 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-20 14:02:04,886 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-20 14:02:04,886 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-20 14:02:04,886 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-20 14:02:04,886 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-20 14:02:04,886 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-20 14:02:04,886 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-20 14:02:04,887 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-20 14:02:04,887 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:02:04,887 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)) [2020-07-20 14:02:04,887 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 14:02:04,887 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:02:04,887 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)|))) [2020-07-20 14:02:04,887 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-20 14:02:04,887 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse7 (<= ~a8~0 13)) (.cse2 (<= ~a16~0 5)) (.cse4 (< ~a8~0 15)) (.cse10 (= 1 ~a20~0))) (let ((.cse1 (<= ~a17~0 0)) (.cse0 (= 1 ~a7~0)) (.cse6 (<= ~a21~0 0)) (.cse5 (or (and .cse7 .cse10) (and .cse2 .cse4 .cse10))) (.cse9 (<= ~a7~0 0)) (.cse3 (= 1 ~a21~0)) (.cse8 (<= ~a16~0 4))) (or (not (<= |old(~a7~0)| 0)) (and .cse0 .cse1 .cse2 .cse3) (and (or (and .cse1 .cse2 .cse4) (and .cse1 .cse5)) .cse3) (and .cse0 (or (and .cse6 .cse1 .cse2 .cse4) (and .cse7 .cse6 .cse8))) (not (<= 5 |old(~a16~0)|)) (and (or (and .cse9 .cse2) (and .cse7 .cse9 .cse10)) .cse3) (and .cse0 .cse6 .cse5 (<= 5 ~a16~0)) (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and .cse9 (<= 15 ~a8~0) .cse3) (not (<= |old(~a16~0)| 5)) (not (= 1 |old(~a21~0)|)) (and .cse7 .cse3 .cse10 .cse8)))) [2020-07-20 14:02:04,887 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-20 14:02:04,888 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-20 14:02:04,888 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse7 (<= ~a8~0 13)) (.cse2 (<= ~a16~0 5)) (.cse4 (< ~a8~0 15)) (.cse10 (= 1 ~a20~0))) (let ((.cse1 (<= ~a17~0 0)) (.cse0 (= 1 ~a7~0)) (.cse6 (<= ~a21~0 0)) (.cse5 (or (and .cse7 .cse10) (and .cse2 .cse4 .cse10))) (.cse9 (<= ~a7~0 0)) (.cse3 (= 1 ~a21~0)) (.cse8 (<= ~a16~0 4))) (or (not (<= |old(~a7~0)| 0)) (and .cse0 .cse1 .cse2 .cse3) (and (or (and .cse1 .cse2 .cse4) (and .cse1 .cse5)) .cse3) (and .cse0 (or (and .cse6 .cse1 .cse2 .cse4) (and .cse7 .cse6 .cse8))) (not (<= 5 |old(~a16~0)|)) (and (or (and .cse9 .cse2) (and .cse7 .cse9 .cse10)) .cse3) (and .cse0 .cse6 .cse5 (<= 5 ~a16~0)) (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and .cse9 (<= 15 ~a8~0) .cse3) (not (<= |old(~a16~0)| 5)) (not (= 1 |old(~a21~0)|)) (and .cse7 .cse3 .cse10 .cse8)))) [2020-07-20 14:02:04,888 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-20 14:02:04,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 02:02:04 BoogieIcfgContainer [2020-07-20 14:02:04,910 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 14:02:04,911 INFO L168 Benchmark]: Toolchain (without parser) took 26400.41 ms. Allocated memory was 144.7 MB in the beginning and 614.5 MB in the end (delta: 469.8 MB). Free memory was 101.1 MB in the beginning and 265.5 MB in the end (delta: -164.4 MB). Peak memory consumption was 437.7 MB. Max. memory is 7.1 GB. [2020-07-20 14:02:04,912 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 14:02:04,913 INFO L168 Benchmark]: CACSL2BoogieTranslator took 804.40 ms. Allocated memory was 144.7 MB in the beginning and 205.0 MB in the end (delta: 60.3 MB). Free memory was 100.7 MB in the beginning and 171.4 MB in the end (delta: -70.7 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. [2020-07-20 14:02:04,913 INFO L168 Benchmark]: Boogie Preprocessor took 108.24 ms. Allocated memory is still 205.0 MB. Free memory was 171.4 MB in the beginning and 166.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-20 14:02:04,914 INFO L168 Benchmark]: RCFGBuilder took 1167.03 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 166.4 MB in the beginning and 180.9 MB in the end (delta: -14.5 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. [2020-07-20 14:02:04,915 INFO L168 Benchmark]: TraceAbstraction took 24313.94 ms. Allocated memory was 237.0 MB in the beginning and 614.5 MB in the end (delta: 377.5 MB). Free memory was 180.9 MB in the beginning and 265.5 MB in the end (delta: -84.6 MB). Peak memory consumption was 425.2 MB. Max. memory is 7.1 GB. [2020-07-20 14:02:04,918 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 144.7 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 804.40 ms. Allocated memory was 144.7 MB in the beginning and 205.0 MB in the end (delta: 60.3 MB). Free memory was 100.7 MB in the beginning and 171.4 MB in the end (delta: -70.7 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.24 ms. Allocated memory is still 205.0 MB. Free memory was 171.4 MB in the beginning and 166.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1167.03 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 166.4 MB in the beginning and 180.9 MB in the end (delta: -14.5 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 24313.94 ms. Allocated memory was 237.0 MB in the beginning and 614.5 MB in the end (delta: 377.5 MB). Free memory was 180.9 MB in the beginning and 265.5 MB in the end (delta: -84.6 MB). Peak memory consumption was 425.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 458]: 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: (((((((((((!(\old(a7) <= 0) || (((1 == a7 && a17 <= 0) && a16 <= 5) && 1 == a21)) || ((((a17 <= 0 && a16 <= 5) && a8 < 15) || (a17 <= 0 && ((a8 <= 13 && 1 == a20) || ((a16 <= 5 && a8 < 15) && 1 == a20)))) && 1 == a21)) || (1 == a7 && ((((a21 <= 0 && a17 <= 0) && a16 <= 5) && a8 < 15) || ((a8 <= 13 && a21 <= 0) && a16 <= 4)))) || !(5 <= \old(a16))) || (((a7 <= 0 && a16 <= 5) || ((a8 <= 13 && a7 <= 0) && 1 == a20)) && 1 == a21)) || (((1 == a7 && a21 <= 0) && ((a8 <= 13 && 1 == a20) || ((a16 <= 5 && a8 < 15) && 1 == a20))) && 5 <= a16)) || !(1 == \old(a20))) || !(15 <= \old(a8))) || ((a7 <= 0 && 15 <= a8) && 1 == a21)) || !(\old(a16) <= 5)) || !(1 == \old(a21))) || (((a8 <= 13 && 1 == a21) && 1 == a20) && a16 <= 4) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.1s, OverallIterations: 11, TraceHistogramMax: 5, AutomataDifference: 11.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 546 SDtfs, 3800 SDslu, 387 SDs, 0 SdLazy, 8568 SolverSat, 1195 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2442 GetRequests, 2384 SyntacticMatches, 6 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5808occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 4396 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 206 PreInvPairs, 304 NumberOfFragments, 1046 HoareAnnotationTreeSize, 206 FomulaSimplifications, 221064 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 68998 FormulaSimplificationTreeSizeReductionInter, 4.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1520 NumberOfCodeBlocks, 1520 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 2406 ConstructedInterpolants, 0 QuantifiedInterpolants, 655103 SizeOfPredicates, 13 NumberOfNonLiveVariables, 4678 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 17 InterpolantComputations, 5 PerfectInterpolantSequences, 1000/1063 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...