/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:09:15,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 20:09:15,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 20:09:15,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 20:09:15,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 20:09:15,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 20:09:15,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 20:09:15,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 20:09:15,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 20:09:15,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 20:09:15,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 20:09:15,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 20:09:15,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:09:15,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:09:15,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:09:15,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:09:15,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:09:15,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:09:15,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:09:15,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:09:15,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:09:15,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:09:15,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:09:15,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:09:15,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 20:09:15,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 20:09:15,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 20:09:15,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 20:09:15,387 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 20:09:15,412 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:09:15,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:09:15,413 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:09:15,414 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:09:15,414 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:09:15,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:09:15,420 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:09:15,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:09:15,421 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:09:15,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:09:15,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:09:15,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:09:15,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:09:15,421 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:09:15,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:09:15,422 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:09:15,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:09:15,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:09:15,423 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:09:15,423 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:09:15,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:09:15,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:09:15,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:09:15,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:09:15,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:09:15,424 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:09:15,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:15,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:09:15,425 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:09:15,425 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 20:09:15,705 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:09:15,719 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:09:15,722 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:09:15,724 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:09:15,724 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:09:15,725 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-07-21 20:09:15,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfdedeb42/cd4b5cbe899d41f49b649f31eba4b4cb/FLAG15e4a487d [2020-07-21 20:09:16,458 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:09:16,459 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-07-21 20:09:16,479 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfdedeb42/cd4b5cbe899d41f49b649f31eba4b4cb/FLAG15e4a487d [2020-07-21 20:09:16,668 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfdedeb42/cd4b5cbe899d41f49b649f31eba4b4cb [2020-07-21 20:09:16,681 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:09:16,684 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:09:16,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:09:16,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:09:16,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:09:16,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:09:16" (1/1) ... [2020-07-21 20:09:16,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a922da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:16, skipping insertion in model container [2020-07-21 20:09:16,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:09:16" (1/1) ... [2020-07-21 20:09:16,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:09:16,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:09:17,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:09:17,181 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:09:17,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:09:17,422 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:09:17,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:17 WrapperNode [2020-07-21 20:09:17,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:09:17,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:09:17,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:09:17,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:09:17,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:17" (1/1) ... [2020-07-21 20:09:17,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:17" (1/1) ... [2020-07-21 20:09:17,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:17" (1/1) ... [2020-07-21 20:09:17,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:17" (1/1) ... [2020-07-21 20:09:17,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:17" (1/1) ... [2020-07-21 20:09:17,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:17" (1/1) ... [2020-07-21 20:09:17,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:17" (1/1) ... [2020-07-21 20:09:17,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:09:17,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:09:17,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:09:17,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:09:17,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:09:17,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:09:17,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:09:17,606 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 20:09:17,606 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:09:17,606 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 20:09:17,607 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:09:17,607 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 20:09:17,607 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 20:09:17,607 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:09:17,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:09:17,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:09:18,829 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:09:18,829 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 20:09:18,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:09:18 BoogieIcfgContainer [2020-07-21 20:09:18,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:09:18,838 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:09:18,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:09:18,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:09:18,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:09:16" (1/3) ... [2020-07-21 20:09:18,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25655602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:09:18, skipping insertion in model container [2020-07-21 20:09:18,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:17" (2/3) ... [2020-07-21 20:09:18,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25655602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:09:18, skipping insertion in model container [2020-07-21 20:09:18,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:09:18" (3/3) ... [2020-07-21 20:09:18,845 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label19.c [2020-07-21 20:09:18,856 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:09:18,864 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:09:18,879 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:09:18,906 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:09:18,906 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:09:18,906 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:09:18,906 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:09:18,907 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:09:18,907 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:09:18,907 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:09:18,907 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:09:18,934 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 20:09:18,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-07-21 20:09:18,947 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:18,948 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] [2020-07-21 20:09:18,948 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:18,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:18,955 INFO L82 PathProgramCache]: Analyzing trace with hash 797442718, now seen corresponding path program 1 times [2020-07-21 20:09:18,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:18,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2018169454] [2020-07-21 20:09:18,966 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:19,199 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:19,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:19,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:09:19,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:19,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:19,358 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:19,360 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2018169454] [2020-07-21 20:09:19,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:19,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:09:19,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805445615] [2020-07-21 20:09:19,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:09:19,372 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:19,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:09:19,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:19,389 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 20:09:20,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:20,340 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-21 20:09:20,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:09:20,342 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2020-07-21 20:09:20,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:20,358 INFO L225 Difference]: With dead ends: 615 [2020-07-21 20:09:20,359 INFO L226 Difference]: Without dead ends: 317 [2020-07-21 20:09:20,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:20,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-21 20:09:20,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-21 20:09:20,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-21 20:09:20,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-21 20:09:20,439 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 98 [2020-07-21 20:09:20,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:20,441 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-21 20:09:20,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:09:20,441 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-21 20:09:20,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-07-21 20:09:20,447 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:20,447 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:20,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:20,662 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:20,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:20,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1720377347, now seen corresponding path program 1 times [2020-07-21 20:09:20,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:20,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [610561376] [2020-07-21 20:09:20,665 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:20,762 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:20,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:20,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:09:20,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:20,823 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:20,824 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:20,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [610561376] [2020-07-21 20:09:20,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:20,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:09:20,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236987229] [2020-07-21 20:09:20,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:09:20,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:20,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:09:20,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:20,828 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 3 states. [2020-07-21 20:09:21,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:21,499 INFO L93 Difference]: Finished difference Result 919 states and 1406 transitions. [2020-07-21 20:09:21,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:09:21,500 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2020-07-21 20:09:21,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:21,507 INFO L225 Difference]: With dead ends: 919 [2020-07-21 20:09:21,507 INFO L226 Difference]: Without dead ends: 608 [2020-07-21 20:09:21,509 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:21,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-07-21 20:09:21,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 462. [2020-07-21 20:09:21,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-07-21 20:09:21,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 642 transitions. [2020-07-21 20:09:21,540 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 642 transitions. Word has length 113 [2020-07-21 20:09:21,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:21,541 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 642 transitions. [2020-07-21 20:09:21,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:09:21,541 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 642 transitions. [2020-07-21 20:09:21,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-21 20:09:21,545 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:21,545 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:21,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:21,760 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:21,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:21,761 INFO L82 PathProgramCache]: Analyzing trace with hash -540211274, now seen corresponding path program 1 times [2020-07-21 20:09:21,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:21,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [937751838] [2020-07-21 20:09:21,763 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:21,893 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:21,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:21,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:09:21,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:21,967 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:21,967 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:21,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [937751838] [2020-07-21 20:09:21,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:21,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:09:21,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927851308] [2020-07-21 20:09:21,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:09:21,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:21,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:09:21,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:21,980 INFO L87 Difference]: Start difference. First operand 462 states and 642 transitions. Second operand 3 states. [2020-07-21 20:09:22,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:22,615 INFO L93 Difference]: Finished difference Result 1209 states and 1740 transitions. [2020-07-21 20:09:22,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:09:22,618 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-07-21 20:09:22,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:22,624 INFO L225 Difference]: With dead ends: 1209 [2020-07-21 20:09:22,625 INFO L226 Difference]: Without dead ends: 753 [2020-07-21 20:09:22,626 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:22,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2020-07-21 20:09:22,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 609. [2020-07-21 20:09:22,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2020-07-21 20:09:22,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 820 transitions. [2020-07-21 20:09:22,663 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 820 transitions. Word has length 120 [2020-07-21 20:09:22,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:22,664 INFO L479 AbstractCegarLoop]: Abstraction has 609 states and 820 transitions. [2020-07-21 20:09:22,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:09:22,664 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 820 transitions. [2020-07-21 20:09:22,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-07-21 20:09:22,668 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:22,668 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:22,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:22,884 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:22,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:22,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1255105582, now seen corresponding path program 1 times [2020-07-21 20:09:22,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:22,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1101489501] [2020-07-21 20:09:22,887 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:22,985 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:22,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:22,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 20:09:22,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:23,056 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:23,057 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:23,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1101489501] [2020-07-21 20:09:23,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:23,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:09:23,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194854917] [2020-07-21 20:09:23,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:09:23,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:23,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:09:23,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:09:23,060 INFO L87 Difference]: Start difference. First operand 609 states and 820 transitions. Second operand 5 states. [2020-07-21 20:09:23,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:23,905 INFO L93 Difference]: Finished difference Result 1827 states and 2557 transitions. [2020-07-21 20:09:23,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:09:23,906 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-07-21 20:09:23,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:23,932 INFO L225 Difference]: With dead ends: 1827 [2020-07-21 20:09:23,933 INFO L226 Difference]: Without dead ends: 1224 [2020-07-21 20:09:23,941 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-21 20:09:23,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2020-07-21 20:09:24,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1208. [2020-07-21 20:09:24,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1208 states. [2020-07-21 20:09:24,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1597 transitions. [2020-07-21 20:09:24,024 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1597 transitions. Word has length 124 [2020-07-21 20:09:24,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:24,024 INFO L479 AbstractCegarLoop]: Abstraction has 1208 states and 1597 transitions. [2020-07-21 20:09:24,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:09:24,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1597 transitions. [2020-07-21 20:09:24,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-21 20:09:24,036 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:24,037 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:24,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:24,251 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:24,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:24,252 INFO L82 PathProgramCache]: Analyzing trace with hash -570592108, now seen corresponding path program 1 times [2020-07-21 20:09:24,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:24,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2002158813] [2020-07-21 20:09:24,254 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:24,375 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:24,375 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:24,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:09:24,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:24,430 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:24,430 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:24,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2002158813] [2020-07-21 20:09:24,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:24,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:09:24,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543470016] [2020-07-21 20:09:24,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:09:24,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:24,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:09:24,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:09:24,433 INFO L87 Difference]: Start difference. First operand 1208 states and 1597 transitions. Second operand 5 states. [2020-07-21 20:09:25,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:25,355 INFO L93 Difference]: Finished difference Result 2890 states and 3972 transitions. [2020-07-21 20:09:25,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:09:25,356 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2020-07-21 20:09:25,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:25,367 INFO L225 Difference]: With dead ends: 2890 [2020-07-21 20:09:25,367 INFO L226 Difference]: Without dead ends: 1688 [2020-07-21 20:09:25,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 20:09:25,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2020-07-21 20:09:25,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1680. [2020-07-21 20:09:25,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1680 states. [2020-07-21 20:09:25,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2186 transitions. [2020-07-21 20:09:25,442 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2186 transitions. Word has length 133 [2020-07-21 20:09:25,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:25,442 INFO L479 AbstractCegarLoop]: Abstraction has 1680 states and 2186 transitions. [2020-07-21 20:09:25,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:09:25,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2186 transitions. [2020-07-21 20:09:25,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-21 20:09:25,448 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:25,449 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:25,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:25,664 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:25,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:25,665 INFO L82 PathProgramCache]: Analyzing trace with hash 411969091, now seen corresponding path program 1 times [2020-07-21 20:09:25,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:25,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [228742714] [2020-07-21 20:09:25,667 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:25,809 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:25,809 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:25,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:09:25,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:25,866 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:25,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:09:25,938 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:25,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [228742714] [2020-07-21 20:09:25,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:09:25,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:09:25,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369482167] [2020-07-21 20:09:25,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:09:25,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:25,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:09:25,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:09:25,941 INFO L87 Difference]: Start difference. First operand 1680 states and 2186 transitions. Second operand 6 states. [2020-07-21 20:09:26,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:26,761 INFO L93 Difference]: Finished difference Result 3362 states and 4385 transitions. [2020-07-21 20:09:26,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:09:26,762 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2020-07-21 20:09:26,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:26,772 INFO L225 Difference]: With dead ends: 3362 [2020-07-21 20:09:26,772 INFO L226 Difference]: Without dead ends: 1533 [2020-07-21 20:09:26,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 278 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:09:26,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2020-07-21 20:09:26,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1526. [2020-07-21 20:09:26,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1526 states. [2020-07-21 20:09:26,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1835 transitions. [2020-07-21 20:09:26,843 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1835 transitions. Word has length 142 [2020-07-21 20:09:26,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:26,844 INFO L479 AbstractCegarLoop]: Abstraction has 1526 states and 1835 transitions. [2020-07-21 20:09:26,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:09:26,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1835 transitions. [2020-07-21 20:09:26,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-21 20:09:26,849 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:26,849 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:27,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:27,063 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:27,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:27,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1254253877, now seen corresponding path program 1 times [2020-07-21 20:09:27,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:27,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1987662109] [2020-07-21 20:09:27,064 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:27,171 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:27,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:27,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 20:09:27,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:27,221 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:27,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:09:27,281 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:27,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1987662109] [2020-07-21 20:09:27,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:09:27,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:09:27,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084828554] [2020-07-21 20:09:27,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:09:27,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:27,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:09:27,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:09:27,283 INFO L87 Difference]: Start difference. First operand 1526 states and 1835 transitions. Second operand 6 states. [2020-07-21 20:09:28,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:28,674 INFO L93 Difference]: Finished difference Result 4976 states and 6577 transitions. [2020-07-21 20:09:28,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:09:28,680 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2020-07-21 20:09:28,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:28,700 INFO L225 Difference]: With dead ends: 4976 [2020-07-21 20:09:28,701 INFO L226 Difference]: Without dead ends: 3456 [2020-07-21 20:09:28,707 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:09:28,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3456 states. [2020-07-21 20:09:28,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3456 to 3357. [2020-07-21 20:09:28,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3357 states. [2020-07-21 20:09:28,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3357 states to 3357 states and 4086 transitions. [2020-07-21 20:09:28,818 INFO L78 Accepts]: Start accepts. Automaton has 3357 states and 4086 transitions. Word has length 146 [2020-07-21 20:09:28,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:28,819 INFO L479 AbstractCegarLoop]: Abstraction has 3357 states and 4086 transitions. [2020-07-21 20:09:28,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:09:28,819 INFO L276 IsEmpty]: Start isEmpty. Operand 3357 states and 4086 transitions. [2020-07-21 20:09:28,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-07-21 20:09:28,827 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:28,827 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:29,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:29,043 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:29,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:29,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1630578362, now seen corresponding path program 1 times [2020-07-21 20:09:29,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:29,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [588924063] [2020-07-21 20:09:29,044 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:29,145 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:29,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:29,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:09:29,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:29,208 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:29,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:09:29,325 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:29,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [588924063] [2020-07-21 20:09:29,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:09:29,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 20:09:29,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281231848] [2020-07-21 20:09:29,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:09:29,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:29,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:09:29,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:09:29,329 INFO L87 Difference]: Start difference. First operand 3357 states and 4086 transitions. Second operand 7 states. [2020-07-21 20:09:30,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:30,635 INFO L93 Difference]: Finished difference Result 7856 states and 9502 transitions. [2020-07-21 20:09:30,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:09:30,636 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 156 [2020-07-21 20:09:30,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:30,657 INFO L225 Difference]: With dead ends: 7856 [2020-07-21 20:09:30,657 INFO L226 Difference]: Without dead ends: 4509 [2020-07-21 20:09:30,667 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 307 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:09:30,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4509 states. [2020-07-21 20:09:30,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4509 to 4219. [2020-07-21 20:09:30,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4219 states. [2020-07-21 20:09:30,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4219 states to 4219 states and 4813 transitions. [2020-07-21 20:09:30,782 INFO L78 Accepts]: Start accepts. Automaton has 4219 states and 4813 transitions. Word has length 156 [2020-07-21 20:09:30,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:30,782 INFO L479 AbstractCegarLoop]: Abstraction has 4219 states and 4813 transitions. [2020-07-21 20:09:30,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:09:30,782 INFO L276 IsEmpty]: Start isEmpty. Operand 4219 states and 4813 transitions. [2020-07-21 20:09:30,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-07-21 20:09:30,791 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:30,792 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:31,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:31,006 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:31,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:31,007 INFO L82 PathProgramCache]: Analyzing trace with hash 2042467530, now seen corresponding path program 1 times [2020-07-21 20:09:31,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:31,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636997847] [2020-07-21 20:09:31,008 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:31,130 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:31,131 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:31,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:09:31,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:31,240 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-07-21 20:09:31,240 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:31,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1636997847] [2020-07-21 20:09:31,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:31,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:09:31,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893304906] [2020-07-21 20:09:31,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:09:31,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:31,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:09:31,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:09:31,244 INFO L87 Difference]: Start difference. First operand 4219 states and 4813 transitions. Second operand 5 states. [2020-07-21 20:09:31,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:31,650 INFO L93 Difference]: Finished difference Result 6765 states and 7708 transitions. [2020-07-21 20:09:31,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 20:09:31,651 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2020-07-21 20:09:31,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:31,661 INFO L225 Difference]: With dead ends: 6765 [2020-07-21 20:09:31,662 INFO L226 Difference]: Without dead ends: 2402 [2020-07-21 20:09:31,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:09:31,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2402 states. [2020-07-21 20:09:31,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2402 to 2400. [2020-07-21 20:09:31,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2400 states. [2020-07-21 20:09:31,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2400 states to 2400 states and 2584 transitions. [2020-07-21 20:09:31,722 INFO L78 Accepts]: Start accepts. Automaton has 2400 states and 2584 transitions. Word has length 170 [2020-07-21 20:09:31,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:31,722 INFO L479 AbstractCegarLoop]: Abstraction has 2400 states and 2584 transitions. [2020-07-21 20:09:31,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:09:31,722 INFO L276 IsEmpty]: Start isEmpty. Operand 2400 states and 2584 transitions. [2020-07-21 20:09:31,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-21 20:09:31,728 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:31,728 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:31,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:31,943 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:31,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:31,943 INFO L82 PathProgramCache]: Analyzing trace with hash 2108658743, now seen corresponding path program 1 times [2020-07-21 20:09:31,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:31,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [630694235] [2020-07-21 20:09:31,944 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:32,068 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:32,068 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:32,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:09:32,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:32,114 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 20:09:32,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:09:32,194 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 20:09:32,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [630694235] [2020-07-21 20:09:32,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:09:32,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:09:32,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766994355] [2020-07-21 20:09:32,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:09:32,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:32,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:09:32,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:09:32,196 INFO L87 Difference]: Start difference. First operand 2400 states and 2584 transitions. Second operand 6 states. [2020-07-21 20:09:33,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:33,077 INFO L93 Difference]: Finished difference Result 3921 states and 4215 transitions. [2020-07-21 20:09:33,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 20:09:33,078 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2020-07-21 20:09:33,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:33,089 INFO L225 Difference]: With dead ends: 3921 [2020-07-21 20:09:33,089 INFO L226 Difference]: Without dead ends: 2104 [2020-07-21 20:09:33,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 360 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:09:33,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2104 states. [2020-07-21 20:09:33,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2104 to 1662. [2020-07-21 20:09:33,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1662 states. [2020-07-21 20:09:33,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 1758 transitions. [2020-07-21 20:09:33,144 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 1758 transitions. Word has length 182 [2020-07-21 20:09:33,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:33,145 INFO L479 AbstractCegarLoop]: Abstraction has 1662 states and 1758 transitions. [2020-07-21 20:09:33,145 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:09:33,145 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 1758 transitions. [2020-07-21 20:09:33,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-07-21 20:09:33,153 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:33,153 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:33,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:33,367 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:33,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:33,368 INFO L82 PathProgramCache]: Analyzing trace with hash 698359958, now seen corresponding path program 1 times [2020-07-21 20:09:33,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:33,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1934762184] [2020-07-21 20:09:33,369 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:33,483 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:33,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:33,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 20:09:33,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:33,549 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-21 20:09:33,549 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:33,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1934762184] [2020-07-21 20:09:33,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:33,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:09:33,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266752045] [2020-07-21 20:09:33,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:09:33,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:33,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:09:33,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:09:33,551 INFO L87 Difference]: Start difference. First operand 1662 states and 1758 transitions. Second operand 5 states. [2020-07-21 20:09:34,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:34,241 INFO L93 Difference]: Finished difference Result 3931 states and 4173 transitions. [2020-07-21 20:09:34,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 20:09:34,243 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 204 [2020-07-21 20:09:34,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:34,253 INFO L225 Difference]: With dead ends: 3931 [2020-07-21 20:09:34,253 INFO L226 Difference]: Without dead ends: 2717 [2020-07-21 20:09:34,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:09:34,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2717 states. [2020-07-21 20:09:34,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2717 to 2567. [2020-07-21 20:09:34,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2567 states. [2020-07-21 20:09:34,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2567 states to 2567 states and 2732 transitions. [2020-07-21 20:09:34,344 INFO L78 Accepts]: Start accepts. Automaton has 2567 states and 2732 transitions. Word has length 204 [2020-07-21 20:09:34,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:34,345 INFO L479 AbstractCegarLoop]: Abstraction has 2567 states and 2732 transitions. [2020-07-21 20:09:34,345 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:09:34,345 INFO L276 IsEmpty]: Start isEmpty. Operand 2567 states and 2732 transitions. [2020-07-21 20:09:34,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-07-21 20:09:34,351 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:34,353 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 20:09:34,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:34,567 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:34,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:34,568 INFO L82 PathProgramCache]: Analyzing trace with hash -571909135, now seen corresponding path program 1 times [2020-07-21 20:09:34,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:34,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [613140188] [2020-07-21 20:09:34,568 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:34,709 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:34,709 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:34,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 20:09:34,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:34,749 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-07-21 20:09:34,749 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:34,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [613140188] [2020-07-21 20:09:34,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:34,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:09:34,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47010758] [2020-07-21 20:09:34,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:09:34,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:34,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:09:34,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:34,752 INFO L87 Difference]: Start difference. First operand 2567 states and 2732 transitions. Second operand 3 states. [2020-07-21 20:09:35,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:35,191 INFO L93 Difference]: Finished difference Result 4205 states and 4482 transitions. [2020-07-21 20:09:35,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:09:35,192 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2020-07-21 20:09:35,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:35,205 INFO L225 Difference]: With dead ends: 4205 [2020-07-21 20:09:35,205 INFO L226 Difference]: Without dead ends: 2996 [2020-07-21 20:09:35,210 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:35,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2996 states. [2020-07-21 20:09:35,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2996 to 2564. [2020-07-21 20:09:35,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2564 states. [2020-07-21 20:09:35,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 2726 transitions. [2020-07-21 20:09:35,267 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 2726 transitions. Word has length 212 [2020-07-21 20:09:35,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:35,268 INFO L479 AbstractCegarLoop]: Abstraction has 2564 states and 2726 transitions. [2020-07-21 20:09:35,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:09:35,268 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 2726 transitions. [2020-07-21 20:09:35,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-07-21 20:09:35,275 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:35,275 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:35,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:35,490 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:35,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:35,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1841503196, now seen corresponding path program 1 times [2020-07-21 20:09:35,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:35,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1853423896] [2020-07-21 20:09:35,491 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:35,607 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:35,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:35,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:09:35,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:35,669 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-07-21 20:09:35,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:09:35,827 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 146 proven. 36 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-07-21 20:09:35,828 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1853423896] [2020-07-21 20:09:35,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:09:35,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:09:35,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142943442] [2020-07-21 20:09:35,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:09:35,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:35,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:09:35,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:09:35,832 INFO L87 Difference]: Start difference. First operand 2564 states and 2726 transitions. Second operand 6 states. [2020-07-21 20:09:36,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:36,729 INFO L93 Difference]: Finished difference Result 5580 states and 5991 transitions. [2020-07-21 20:09:36,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:09:36,730 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 217 [2020-07-21 20:09:36,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:36,740 INFO L225 Difference]: With dead ends: 5580 [2020-07-21 20:09:36,740 INFO L226 Difference]: Without dead ends: 2846 [2020-07-21 20:09:36,746 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 430 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:09:36,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2020-07-21 20:09:36,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 2838. [2020-07-21 20:09:36,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2838 states. [2020-07-21 20:09:36,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2838 states to 2838 states and 2997 transitions. [2020-07-21 20:09:36,806 INFO L78 Accepts]: Start accepts. Automaton has 2838 states and 2997 transitions. Word has length 217 [2020-07-21 20:09:36,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:36,806 INFO L479 AbstractCegarLoop]: Abstraction has 2838 states and 2997 transitions. [2020-07-21 20:09:36,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:09:36,807 INFO L276 IsEmpty]: Start isEmpty. Operand 2838 states and 2997 transitions. [2020-07-21 20:09:36,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-07-21 20:09:36,813 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:36,814 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2020-07-21 20:09:37,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:37,028 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:37,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:37,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1962742350, now seen corresponding path program 1 times [2020-07-21 20:09:37,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:37,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2112178260] [2020-07-21 20:09:37,029 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:37,175 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:37,175 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:37,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 20:09:37,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:37,239 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-07-21 20:09:37,239 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:37,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2112178260] [2020-07-21 20:09:37,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:37,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:09:37,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39031772] [2020-07-21 20:09:37,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:09:37,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:37,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:09:37,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:37,241 INFO L87 Difference]: Start difference. First operand 2838 states and 2997 transitions. Second operand 3 states. [2020-07-21 20:09:37,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:37,733 INFO L93 Difference]: Finished difference Result 3428 states and 3597 transitions. [2020-07-21 20:09:37,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:09:37,734 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2020-07-21 20:09:37,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:37,735 INFO L225 Difference]: With dead ends: 3428 [2020-07-21 20:09:37,735 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 20:09:37,743 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:37,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 20:09:37,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 20:09:37,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 20:09:37,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 20:09:37,746 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 240 [2020-07-21 20:09:37,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:37,747 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 20:09:37,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:09:37,747 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 20:09:37,747 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 20:09:37,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:37,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 20:09:38,426 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 95 [2020-07-21 20:09:39,605 WARN L193 SmtUtils]: Spent 989.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 92 [2020-07-21 20:09:40,370 WARN L193 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2020-07-21 20:09:41,084 WARN L193 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2020-07-21 20:09:41,089 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:09:41,089 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a11~0 |old(~a11~0)|) (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 20:09:41,089 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:09:41,090 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,090 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,090 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,090 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,090 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,091 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 20:09:41,091 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 20:09:41,091 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 20:09:41,091 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 20:09:41,091 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 20:09:41,091 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 20:09:41,091 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 20:09:41,091 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 20:09:41,091 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 20:09:41,092 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 20:09:41,092 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 20:09:41,092 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 20:09:41,092 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 20:09:41,092 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,092 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,092 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,092 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,092 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 20:09:41,092 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,093 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 20:09:41,093 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 20:09:41,093 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 20:09:41,093 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 20:09:41,093 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 20:09:41,093 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 20:09:41,093 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 20:09:41,093 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 20:09:41,094 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 20:09:41,094 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 20:09:41,094 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 20:09:41,094 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 20:09:41,094 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 20:09:41,094 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 20:09:41,094 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 20:09:41,094 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,094 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,095 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,095 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,095 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,095 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 448) no Hoare annotation was computed. [2020-07-21 20:09:41,095 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 20:09:41,095 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 20:09:41,095 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 20:09:41,096 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 20:09:41,096 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 20:09:41,096 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 20:09:41,096 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 20:09:41,096 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 20:09:41,096 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 20:09:41,096 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 20:09:41,096 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 20:09:41,096 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,097 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,097 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,097 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,097 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,097 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 20:09:41,097 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 20:09:41,097 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 20:09:41,097 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 20:09:41,098 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 20:09:41,098 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 20:09:41,098 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 20:09:41,098 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 20:09:41,098 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 20:09:41,098 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 20:09:41,098 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 20:09:41,098 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 20:09:41,098 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 20:09:41,099 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,099 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,099 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,099 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,099 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,099 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 20:09:41,099 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 20:09:41,099 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 20:09:41,099 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 20:09:41,100 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 20:09:41,100 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 20:09:41,100 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 20:09:41,100 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 20:09:41,100 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 20:09:41,100 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 20:09:41,100 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 20:09:41,100 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 20:09:41,100 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 20:09:41,101 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 20:09:41,101 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 20:09:41,101 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 20:09:41,101 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,101 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,101 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,101 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,101 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 20:09:41,102 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,102 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 20:09:41,102 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,102 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 20:09:41,102 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 20:09:41,102 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 20:09:41,102 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,102 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,103 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 20:09:41,103 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 20:09:41,103 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 20:09:41,103 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 20:09:41,103 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 20:09:41,103 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 20:09:41,103 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 20:09:41,103 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 20:09:41,103 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 20:09:41,104 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 20:09:41,104 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 20:09:41,104 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,104 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,104 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,104 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,104 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,104 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,104 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 20:09:41,105 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 20:09:41,105 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 20:09:41,105 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 20:09:41,105 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 20:09:41,105 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 20:09:41,105 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 20:09:41,105 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 20:09:41,105 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 20:09:41,105 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 20:09:41,105 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 20:09:41,105 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,105 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,105 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,106 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,106 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,106 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,106 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 20:09:41,106 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 20:09:41,106 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 20:09:41,106 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 20:09:41,106 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 20:09:41,106 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 20:09:41,106 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 20:09:41,106 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 20:09:41,106 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 20:09:41,107 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 20:09:41,107 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 20:09:41,107 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 20:09:41,107 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 20:09:41,107 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 20:09:41,107 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,107 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,107 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,107 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse13 (= 1 |old(~a11~0)|)) (.cse2 (<= ~a11~0 |old(~a11~0)|)) (.cse4 (<= ~a28~0 |old(~a28~0)|)) (.cse18 (<= ~a17~0 8)) (.cse19 (<= 8 ~a17~0)) (.cse5 (= ~a19~0 |old(~a19~0)|)) (.cse7 (<= |old(~a28~0)| ~a28~0)) (.cse12 (= 1 ~a25~0))) (let ((.cse9 (not (<= |old(~a11~0)| 0))) (.cse22 (<= ~a28~0 10)) (.cse23 (<= 10 ~a28~0)) (.cse24 (not (<= 10 |old(~a28~0)|))) (.cse1 (not (<= |old(~a19~0)| 0))) (.cse6 (= ~a25~0 |old(~a25~0)|)) (.cse0 (not (<= |old(~a28~0)| 10))) (.cse21 (not (<= 9 |old(~a28~0)|))) (.cse15 (and .cse2 .cse4 .cse18 .cse19 .cse5 .cse7 .cse12)) (.cse3 (<= ~a17~0 |old(~a17~0)|)) (.cse11 (= 1 ~a11~0)) (.cse25 (not (<= |old(~a17~0)| 7))) (.cse20 (not .cse13)) (.cse10 (not (= 1 |old(~a19~0)|))) (.cse17 (not (<= |old(~a28~0)| 7))) (.cse16 (not (<= 8 |old(~a17~0)|))) (.cse14 (not (= 1 |old(~a25~0)|))) (.cse8 (not (<= |old(~a17~0)| 8)))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) .cse8 .cse9) (or .cse10 (and .cse2 .cse3 .cse4 (not .cse11) .cse5 .cse7 .cse12) .cse13 .cse14 (not (<= 11 |old(~a28~0)|)) .cse8) (or .cse10 .cse0 .cse15 .cse16 .cse14 .cse8 .cse9) (or .cse17 .cse16 .cse1 (and .cse11 .cse4 .cse18 .cse19 .cse5 .cse6 .cse7) .cse8 .cse20) (or .cse10 .cse0 .cse21 (and .cse2 .cse4 .cse18 .cse19 .cse5 .cse6 .cse7) .cse16 .cse8 .cse9) (or .cse17 .cse19 .cse16 .cse1 .cse8 .cse9) (or .cse10 .cse17 .cse16 (and .cse2 .cse4 .cse18 .cse19 .cse5 .cse7 .cse6) .cse8 .cse9) (or .cse10 (and .cse22 .cse23 .cse5) .cse0 .cse24) (or .cse0 .cse1 .cse25 (and .cse3 .cse22 .cse23 .cse5 .cse6) .cse24) (or (and .cse3 .cse4 .cse5 .cse12) .cse0 .cse14 .cse1 .cse25) (or .cse10 .cse0 .cse21 .cse16 (and .cse4 .cse11 .cse18 .cse19 .cse5 .cse6 .cse7) .cse8 .cse20) (or .cse10 .cse0 .cse21 .cse15 .cse16 .cse14 .cse8) (or .cse10 .cse17 .cse14 (and .cse3 .cse4 .cse11 .cse5 .cse7 .cse12) .cse25 .cse20) (or .cse10 (and .cse4 .cse18 .cse19 .cse5 .cse12) .cse17 .cse16 .cse14 .cse8)))) [2020-07-21 20:09:41,108 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,108 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,108 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,108 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 20:09:41,108 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 20:09:41,108 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 20:09:41,108 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 20:09:41,108 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 20:09:41,108 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 20:09:41,108 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 20:09:41,108 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 20:09:41,108 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 20:09:41,108 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 20:09:41,108 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 20:09:41,109 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 20:09:41,109 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 20:09:41,109 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,109 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,109 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,109 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,109 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,109 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,109 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 20:09:41,109 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 20:09:41,109 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 20:09:41,109 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 20:09:41,109 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 20:09:41,109 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 20:09:41,109 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 20:09:41,110 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 20:09:41,110 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 20:09:41,110 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 20:09:41,110 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 20:09:41,110 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 20:09:41,110 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 20:09:41,110 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 20:09:41,110 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 20:09:41,110 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 20:09:41,110 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,110 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,110 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,110 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,110 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:41,110 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 20:09:41,111 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 20:09:41,111 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 20:09:41,111 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 20:09:41,111 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 20:09:41,111 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 20:09:41,111 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 20:09:41,111 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 20:09:41,111 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 20:09:41,111 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 20:09:41,111 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 20:09:41,111 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 20:09:41,111 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 20:09:41,111 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 20:09:41,111 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 20:09:41,111 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 20:09:41,111 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 20:09:41,112 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 20:09:41,112 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 20:09:41,112 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:09:41,112 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a28~0 7)) [2020-07-21 20:09:41,112 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:09:41,112 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:09:41,112 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= 8 |old(~a17~0)|)) (and (<= ~a11~0 |old(~a11~0)|) (<= ~a28~0 |old(~a28~0)|) (<= ~a17~0 8) (<= 8 ~a17~0) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-21 20:09:41,112 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse8 (< 0 |old(~a19~0)|)) (.cse9 (<= ~a17~0 |old(~a17~0)|)) (.cse5 (= 1 ~a11~0)) (.cse13 (<= ~a19~0 |old(~a19~0)|)) (.cse12 (<= 9 ~a28~0)) (.cse11 (<= ~a17~0 7)) (.cse6 (<= ~a19~0 0)) (.cse4 (= 1 ~a25~0)) (.cse10 (<= ~a28~0 10)) (.cse14 (<= 10 ~a28~0)) (.cse7 (<= ~a11~0 |old(~a11~0)|)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 8)) (.cse2 (<= 8 ~a17~0)) (.cse3 (<= ~a28~0 7))) (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (<= 8 |old(~a17~0)|)) (and .cse5 .cse2 .cse1 .cse6 .cse3) (and .cse0 .cse1 (not .cse5) (<= 11 ~a28~0) .cse4) (and .cse7 .cse8 .cse0 .cse9 .cse2 .cse10 .cse4) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse5 .cse11 .cse3 .cse4) (and .cse7 .cse1 .cse10 .cse6) (and .cse8 .cse0 .cse9 .cse2 .cse10 .cse12 .cse4) (and .cse7 .cse0 .cse1 .cse2 .cse10 .cse13 .cse12) (and .cse10 .cse11 .cse14 .cse6) (and .cse0 .cse5 .cse1 .cse2 .cse10 .cse13 .cse12) (not (<= |old(~a17~0)| 8)) (and .cse10 .cse11 .cse6 .cse4) (and .cse0 .cse10 .cse14) (and .cse7 .cse0 .cse1 .cse2 .cse3 (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)))) [2020-07-21 20:09:41,112 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 20:09:41,112 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 20:09:41,113 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse8 (< 0 |old(~a19~0)|)) (.cse9 (<= ~a17~0 |old(~a17~0)|)) (.cse5 (= 1 ~a11~0)) (.cse13 (<= ~a19~0 |old(~a19~0)|)) (.cse12 (<= 9 ~a28~0)) (.cse11 (<= ~a17~0 7)) (.cse6 (<= ~a19~0 0)) (.cse4 (= 1 ~a25~0)) (.cse10 (<= ~a28~0 10)) (.cse14 (<= 10 ~a28~0)) (.cse7 (<= ~a11~0 |old(~a11~0)|)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 8)) (.cse2 (<= 8 ~a17~0)) (.cse3 (<= ~a28~0 7))) (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (<= 8 |old(~a17~0)|)) (and .cse5 .cse2 .cse1 .cse6 .cse3) (and .cse0 .cse1 (not .cse5) (<= 11 ~a28~0) .cse4) (and .cse7 .cse8 .cse0 .cse9 .cse2 .cse10 .cse4) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse5 .cse11 .cse3 .cse4) (and .cse7 .cse1 .cse10 .cse6) (and .cse8 .cse0 .cse9 .cse2 .cse10 .cse12 .cse4) (and .cse7 .cse0 .cse1 .cse2 .cse10 .cse13 .cse12) (and .cse10 .cse11 .cse14 .cse6) (and .cse0 .cse5 .cse1 .cse2 .cse10 .cse13 .cse12) (not (<= |old(~a17~0)| 8)) (and .cse10 .cse11 .cse6 .cse4) (and .cse0 .cse10 .cse14) (and .cse7 .cse0 .cse1 .cse2 .cse3 (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)))) [2020-07-21 20:09:41,113 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 20:09:41,113 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 20:09:41,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:09:41 BoogieIcfgContainer [2020-07-21 20:09:41,139 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:09:41,141 INFO L168 Benchmark]: Toolchain (without parser) took 24458.45 ms. Allocated memory was 145.8 MB in the beginning and 562.0 MB in the end (delta: 416.3 MB). Free memory was 102.1 MB in the beginning and 373.5 MB in the end (delta: -271.4 MB). Peak memory consumption was 388.9 MB. Max. memory is 7.1 GB. [2020-07-21 20:09:41,141 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 20:09:41,142 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.85 ms. Allocated memory was 145.8 MB in the beginning and 206.0 MB in the end (delta: 60.3 MB). Free memory was 101.7 MB in the beginning and 172.9 MB in the end (delta: -71.3 MB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB. [2020-07-21 20:09:41,143 INFO L168 Benchmark]: Boogie Preprocessor took 105.94 ms. Allocated memory is still 206.0 MB. Free memory was 172.9 MB in the beginning and 168.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-21 20:09:41,143 INFO L168 Benchmark]: RCFGBuilder took 1306.53 ms. Allocated memory was 206.0 MB in the beginning and 239.6 MB in the end (delta: 33.6 MB). Free memory was 168.0 MB in the beginning and 183.8 MB in the end (delta: -15.8 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2020-07-21 20:09:41,144 INFO L168 Benchmark]: TraceAbstraction took 22301.33 ms. Allocated memory was 239.6 MB in the beginning and 562.0 MB in the end (delta: 322.4 MB). Free memory was 183.8 MB in the beginning and 373.5 MB in the end (delta: -189.7 MB). Peak memory consumption was 376.8 MB. Max. memory is 7.1 GB. [2020-07-21 20:09:41,147 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 736.85 ms. Allocated memory was 145.8 MB in the beginning and 206.0 MB in the end (delta: 60.3 MB). Free memory was 101.7 MB in the beginning and 172.9 MB in the end (delta: -71.3 MB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.94 ms. Allocated memory is still 206.0 MB. Free memory was 172.9 MB in the beginning and 168.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1306.53 ms. Allocated memory was 206.0 MB in the beginning and 239.6 MB in the end (delta: 33.6 MB). Free memory was 168.0 MB in the beginning and 183.8 MB in the end (delta: -15.8 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22301.33 ms. Allocated memory was 239.6 MB in the beginning and 562.0 MB in the end (delta: 322.4 MB). Free memory was 183.8 MB in the beginning and 373.5 MB in the end (delta: -189.7 MB). Peak memory consumption was 376.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 448]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((((((((!(1 == \old(a19)) || !(\old(a28) <= 7)) || ((((1 == a19 && a17 <= 8) && 8 <= a17) && a28 <= 7) && 1 == a25)) || !(8 <= \old(a17))) || ((((1 == a11 && 8 <= a17) && a17 <= 8) && a19 <= 0) && a28 <= 7)) || ((((1 == a19 && a17 <= 8) && !(1 == a11)) && 11 <= a28) && 1 == a25)) || ((((((a11 <= \old(a11) && 0 < \old(a19)) && 1 == a19) && a17 <= \old(a17)) && 8 <= a17) && a28 <= 10) && 1 == a25)) || !(\old(a11) <= 0)) || ((((1 == a19 && 1 == a11) && a17 <= 7) && a28 <= 7) && 1 == a25)) || (((a11 <= \old(a11) && a17 <= 8) && a28 <= 10) && a19 <= 0)) || ((((((0 < \old(a19) && 1 == a19) && a17 <= \old(a17)) && 8 <= a17) && a28 <= 10) && 9 <= a28) && 1 == a25)) || ((((((a11 <= \old(a11) && 1 == a19) && a17 <= 8) && 8 <= a17) && a28 <= 10) && a19 <= \old(a19)) && 9 <= a28)) || (((a28 <= 10 && a17 <= 7) && 10 <= a28) && a19 <= 0)) || ((((((1 == a19 && 1 == a11) && a17 <= 8) && 8 <= a17) && a28 <= 10) && a19 <= \old(a19)) && 9 <= a28)) || !(\old(a17) <= 8)) || (((a28 <= 10 && a17 <= 7) && a19 <= 0) && 1 == a25)) || ((1 == a19 && a28 <= 10) && 10 <= a28)) || ((((((a11 <= \old(a11) && 1 == a19) && a17 <= 8) && 8 <= a17) && a28 <= 7) && \old(a28) <= a28) && a25 == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.0s, OverallIterations: 14, TraceHistogramMax: 5, AutomataDifference: 11.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1288 SDtfs, 5018 SDslu, 682 SDs, 0 SdLazy, 8552 SolverSat, 1304 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3120 GetRequests, 3053 SyntacticMatches, 7 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4219occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 14 MinimizatonAttempts, 1744 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 166 PreInvPairs, 206 NumberOfFragments, 1110 HoareAnnotationTreeSize, 166 FomulaSimplifications, 5397 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2885 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 2257 NumberOfCodeBlocks, 2257 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 3081 ConstructedInterpolants, 0 QuantifiedInterpolants, 947789 SizeOfPredicates, 14 NumberOfNonLiveVariables, 5835 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 19 InterpolantComputations, 9 PerfectInterpolantSequences, 1794/1848 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...