/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label07.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:29:14,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 11:29:14,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 11:29:14,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 11:29:14,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:29:14,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:29:14,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:29:14,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:29:14,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:29:14,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:29:14,087 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:29:14,090 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:29:14,091 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:29:14,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:29:14,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:29:14,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:29:14,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:29:14,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:29:14,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:29:14,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:29:14,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:29:14,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:29:14,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:29:14,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:29:14,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 11:29:14,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:29:14,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:29:14,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:29:14,133 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 11:29:14,168 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:29:14,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:29:14,172 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:29:14,172 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:29:14,173 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:29:14,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:29:14,173 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:29:14,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:29:14,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:29:14,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:29:14,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:29:14,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:29:14,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:29:14,175 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:29:14,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:29:14,175 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:29:14,176 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:29:14,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:29:14,176 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:29:14,176 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:29:14,176 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:29:14,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:29:14,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:29:14,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:29:14,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:29:14,178 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:29:14,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:14,178 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:29:14,179 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:29:14,179 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-21 11:29:14,449 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:29:14,462 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:29:14,466 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:29:14,467 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:29:14,468 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:29:14,469 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label07.c [2020-07-21 11:29:14,544 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82cd26bc2/f5ee14e3b09844559798be51b6a3bd9d/FLAGbfc11d090 [2020-07-21 11:29:15,198 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:29:15,199 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label07.c [2020-07-21 11:29:15,215 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82cd26bc2/f5ee14e3b09844559798be51b6a3bd9d/FLAGbfc11d090 [2020-07-21 11:29:15,420 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82cd26bc2/f5ee14e3b09844559798be51b6a3bd9d [2020-07-21 11:29:15,432 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:29:15,436 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:29:15,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:29:15,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:29:15,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:29:15,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:29:15" (1/1) ... [2020-07-21 11:29:15,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27edf361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:15, skipping insertion in model container [2020-07-21 11:29:15,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:29:15" (1/1) ... [2020-07-21 11:29:15,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:29:15,515 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:29:15,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:29:15,943 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:29:16,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:29:16,255 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:29:16,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:16 WrapperNode [2020-07-21 11:29:16,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:29:16,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:29:16,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:29:16,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:29:16,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:16" (1/1) ... [2020-07-21 11:29:16,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:16" (1/1) ... [2020-07-21 11:29:16,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:16" (1/1) ... [2020-07-21 11:29:16,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:16" (1/1) ... [2020-07-21 11:29:16,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:16" (1/1) ... [2020-07-21 11:29:16,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:16" (1/1) ... [2020-07-21 11:29:16,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:16" (1/1) ... [2020-07-21 11:29:16,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:29:16,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:29:16,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:29:16,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:29:16,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:16" (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 11:29:16,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:29:16,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:29:16,446 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 11:29:16,446 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:29:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 11:29:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:29:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 11:29:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 11:29:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:29:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:29:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:29:17,907 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:29:17,909 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 11:29:17,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:29:17 BoogieIcfgContainer [2020-07-21 11:29:17,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:29:17,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:29:17,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:29:17,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:29:17,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:29:15" (1/3) ... [2020-07-21 11:29:17,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3719ee24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:29:17, skipping insertion in model container [2020-07-21 11:29:17,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:16" (2/3) ... [2020-07-21 11:29:17,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3719ee24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:29:17, skipping insertion in model container [2020-07-21 11:29:17,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:29:17" (3/3) ... [2020-07-21 11:29:17,932 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label07.c [2020-07-21 11:29:17,943 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:29:17,955 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:29:17,970 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:29:18,011 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:29:18,012 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:29:18,012 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:29:18,012 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:29:18,013 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:29:18,013 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:29:18,013 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:29:18,013 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:29:18,035 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 11:29:18,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-21 11:29:18,045 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:18,047 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] [2020-07-21 11:29:18,047 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:18,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:18,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1452048058, now seen corresponding path program 1 times [2020-07-21 11:29:18,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:18,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [540982637] [2020-07-21 11:29:18,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:18,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:29:18,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:18,319 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 11:29:18,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:29:18,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [540982637] [2020-07-21 11:29:18,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:29:18,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:29:18,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136526245] [2020-07-21 11:29:18,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:29:18,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:18,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:29:18,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:29:18,348 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 11:29:19,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:19,537 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions. [2020-07-21 11:29:19,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:29:19,539 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-07-21 11:29:19,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:19,556 INFO L225 Difference]: With dead ends: 586 [2020-07-21 11:29:19,556 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 11:29:19,566 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 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 11:29:19,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 11:29:19,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 11:29:19,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 11:29:19,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 446 transitions. [2020-07-21 11:29:19,642 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 446 transitions. Word has length 51 [2020-07-21 11:29:19,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:19,643 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 446 transitions. [2020-07-21 11:29:19,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:29:19,643 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 446 transitions. [2020-07-21 11:29:19,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-07-21 11:29:19,662 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:19,663 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, 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] [2020-07-21 11:29:19,876 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:19,877 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:19,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:19,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1838295646, now seen corresponding path program 1 times [2020-07-21 11:29:19,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:19,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1561114533] [2020-07-21 11:29:19,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:19,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:19,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:19,991 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:29:19,991 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:29:19,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1561114533] [2020-07-21 11:29:19,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:29:19,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:29:19,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945985321] [2020-07-21 11:29:19,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:29:19,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:19,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:29:19,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:29:19,995 INFO L87 Difference]: Start difference. First operand 294 states and 446 transitions. Second operand 3 states. [2020-07-21 11:29:20,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:20,687 INFO L93 Difference]: Finished difference Result 582 states and 894 transitions. [2020-07-21 11:29:20,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:29:20,688 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2020-07-21 11:29:20,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:20,694 INFO L225 Difference]: With dead ends: 582 [2020-07-21 11:29:20,695 INFO L226 Difference]: Without dead ends: 580 [2020-07-21 11:29:20,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:29:20,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-21 11:29:20,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 294. [2020-07-21 11:29:20,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 11:29:20,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 446 transitions. [2020-07-21 11:29:20,732 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 446 transitions. Word has length 121 [2020-07-21 11:29:20,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:20,733 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 446 transitions. [2020-07-21 11:29:20,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:29:20,733 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 446 transitions. [2020-07-21 11:29:20,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-07-21 11:29:20,736 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:20,736 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, 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] [2020-07-21 11:29:20,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:20,948 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:20,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:20,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1710375939, now seen corresponding path program 1 times [2020-07-21 11:29:20,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:20,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1431938165] [2020-07-21 11:29:20,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:21,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:29:21,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:21,107 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:29:21,107 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:29:21,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1431938165] [2020-07-21 11:29:21,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:29:21,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:29:21,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970787835] [2020-07-21 11:29:21,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:29:21,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:21,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:29:21,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:29:21,113 INFO L87 Difference]: Start difference. First operand 294 states and 446 transitions. Second operand 5 states. [2020-07-21 11:29:22,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:22,157 INFO L93 Difference]: Finished difference Result 741 states and 1138 transitions. [2020-07-21 11:29:22,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:29:22,158 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-07-21 11:29:22,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:22,170 INFO L225 Difference]: With dead ends: 741 [2020-07-21 11:29:22,170 INFO L226 Difference]: Without dead ends: 453 [2020-07-21 11:29:22,172 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:29:22,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2020-07-21 11:29:22,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 443. [2020-07-21 11:29:22,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-07-21 11:29:22,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 624 transitions. [2020-07-21 11:29:22,199 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 624 transitions. Word has length 124 [2020-07-21 11:29:22,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:22,199 INFO L479 AbstractCegarLoop]: Abstraction has 443 states and 624 transitions. [2020-07-21 11:29:22,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:29:22,200 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 624 transitions. [2020-07-21 11:29:22,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-21 11:29:22,204 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:22,204 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, 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] [2020-07-21 11:29:22,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:22,419 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:22,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:22,420 INFO L82 PathProgramCache]: Analyzing trace with hash 869168890, now seen corresponding path program 1 times [2020-07-21 11:29:22,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:22,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2026695241] [2020-07-21 11:29:22,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:22,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:29:22,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:22,553 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:29:22,554 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:29:22,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2026695241] [2020-07-21 11:29:22,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:29:22,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:29:22,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420504966] [2020-07-21 11:29:22,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:29:22,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:22,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:29:22,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:29:22,557 INFO L87 Difference]: Start difference. First operand 443 states and 624 transitions. Second operand 5 states. [2020-07-21 11:29:23,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:23,630 INFO L93 Difference]: Finished difference Result 1355 states and 1987 transitions. [2020-07-21 11:29:23,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:29:23,631 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2020-07-21 11:29:23,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:23,638 INFO L225 Difference]: With dead ends: 1355 [2020-07-21 11:29:23,638 INFO L226 Difference]: Without dead ends: 918 [2020-07-21 11:29:23,640 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 11:29:23,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2020-07-21 11:29:23,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 898. [2020-07-21 11:29:23,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-07-21 11:29:23,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1245 transitions. [2020-07-21 11:29:23,694 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1245 transitions. Word has length 133 [2020-07-21 11:29:23,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:23,694 INFO L479 AbstractCegarLoop]: Abstraction has 898 states and 1245 transitions. [2020-07-21 11:29:23,694 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:29:23,695 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1245 transitions. [2020-07-21 11:29:23,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-07-21 11:29:23,700 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:23,700 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, 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 11:29:23,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:23,914 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:23,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:23,915 INFO L82 PathProgramCache]: Analyzing trace with hash -424020551, now seen corresponding path program 1 times [2020-07-21 11:29:23,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:23,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1842287322] [2020-07-21 11:29:23,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:23,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:23,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:24,071 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:29:24,071 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:29:24,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1842287322] [2020-07-21 11:29:24,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:29:24,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:29:24,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039971099] [2020-07-21 11:29:24,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:29:24,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:24,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:29:24,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:29:24,074 INFO L87 Difference]: Start difference. First operand 898 states and 1245 transitions. Second operand 3 states. [2020-07-21 11:29:24,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:24,778 INFO L93 Difference]: Finished difference Result 2374 states and 3313 transitions. [2020-07-21 11:29:24,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:29:24,782 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2020-07-21 11:29:24,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:24,796 INFO L225 Difference]: With dead ends: 2374 [2020-07-21 11:29:24,797 INFO L226 Difference]: Without dead ends: 1482 [2020-07-21 11:29:24,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 168 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 11:29:24,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2020-07-21 11:29:24,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 1337. [2020-07-21 11:29:24,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1337 states. [2020-07-21 11:29:24,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1774 transitions. [2020-07-21 11:29:24,871 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1774 transitions. Word has length 170 [2020-07-21 11:29:24,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:24,872 INFO L479 AbstractCegarLoop]: Abstraction has 1337 states and 1774 transitions. [2020-07-21 11:29:24,872 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:29:24,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1774 transitions. [2020-07-21 11:29:24,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-07-21 11:29:24,878 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:24,878 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:29:25,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:25,092 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:25,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:25,093 INFO L82 PathProgramCache]: Analyzing trace with hash 847819014, now seen corresponding path program 1 times [2020-07-21 11:29:25,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:25,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1081874780] [2020-07-21 11:29:25,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:25,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:29:25,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:25,250 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:29:25,250 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:29:25,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1081874780] [2020-07-21 11:29:25,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:29:25,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:29:25,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111741798] [2020-07-21 11:29:25,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:29:25,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:25,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:29:25,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:29:25,253 INFO L87 Difference]: Start difference. First operand 1337 states and 1774 transitions. Second operand 5 states. [2020-07-21 11:29:26,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:26,253 INFO L93 Difference]: Finished difference Result 3423 states and 4716 transitions. [2020-07-21 11:29:26,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:29:26,259 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 187 [2020-07-21 11:29:26,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:26,271 INFO L225 Difference]: With dead ends: 3423 [2020-07-21 11:29:26,271 INFO L226 Difference]: Without dead ends: 2092 [2020-07-21 11:29:26,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:29:26,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2092 states. [2020-07-21 11:29:26,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2092 to 1653. [2020-07-21 11:29:26,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1653 states. [2020-07-21 11:29:26,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2191 transitions. [2020-07-21 11:29:26,333 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2191 transitions. Word has length 187 [2020-07-21 11:29:26,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:26,333 INFO L479 AbstractCegarLoop]: Abstraction has 1653 states and 2191 transitions. [2020-07-21 11:29:26,334 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:29:26,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2191 transitions. [2020-07-21 11:29:26,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-07-21 11:29:26,338 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:26,338 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:29:26,553 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:26,554 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:26,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:26,555 INFO L82 PathProgramCache]: Analyzing trace with hash 238686173, now seen corresponding path program 1 times [2020-07-21 11:29:26,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:26,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [317017010] [2020-07-21 11:29:26,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:26,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:26,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:26,703 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:29:26,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:29:26,845 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:29:26,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [317017010] [2020-07-21 11:29:26,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:29:26,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:29:26,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76645570] [2020-07-21 11:29:26,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:29:26,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:26,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:29:26,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:29:26,848 INFO L87 Difference]: Start difference. First operand 1653 states and 2191 transitions. Second operand 7 states. [2020-07-21 11:29:28,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:28,179 INFO L93 Difference]: Finished difference Result 4031 states and 5404 transitions. [2020-07-21 11:29:28,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 11:29:28,179 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2020-07-21 11:29:28,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:28,191 INFO L225 Difference]: With dead ends: 4031 [2020-07-21 11:29:28,192 INFO L226 Difference]: Without dead ends: 2384 [2020-07-21 11:29:28,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 419 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 11:29:28,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states. [2020-07-21 11:29:28,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 2233. [2020-07-21 11:29:28,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2233 states. [2020-07-21 11:29:28,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2233 states to 2233 states and 2782 transitions. [2020-07-21 11:29:28,255 INFO L78 Accepts]: Start accepts. Automaton has 2233 states and 2782 transitions. Word has length 212 [2020-07-21 11:29:28,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:28,255 INFO L479 AbstractCegarLoop]: Abstraction has 2233 states and 2782 transitions. [2020-07-21 11:29:28,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:29:28,256 INFO L276 IsEmpty]: Start isEmpty. Operand 2233 states and 2782 transitions. [2020-07-21 11:29:28,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-07-21 11:29:28,262 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:28,263 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:29:28,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:28,478 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:28,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:28,479 INFO L82 PathProgramCache]: Analyzing trace with hash -73062046, now seen corresponding path program 1 times [2020-07-21 11:29:28,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:28,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874615198] [2020-07-21 11:29:28,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:28,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:28,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:28,634 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 156 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:29:28,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:29:28,824 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 156 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:29:28,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874615198] [2020-07-21 11:29:28,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:29:28,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:29:28,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639985980] [2020-07-21 11:29:28,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:29:28,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:28,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:29:28,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:29:28,828 INFO L87 Difference]: Start difference. First operand 2233 states and 2782 transitions. Second operand 6 states. [2020-07-21 11:29:29,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:29,902 INFO L93 Difference]: Finished difference Result 4496 states and 5713 transitions. [2020-07-21 11:29:29,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:29:29,902 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 257 [2020-07-21 11:29:29,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:29,914 INFO L225 Difference]: With dead ends: 4496 [2020-07-21 11:29:29,914 INFO L226 Difference]: Without dead ends: 2269 [2020-07-21 11:29:29,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 510 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:29:29,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2269 states. [2020-07-21 11:29:29,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2269 to 2235. [2020-07-21 11:29:29,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2235 states. [2020-07-21 11:29:29,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 2669 transitions. [2020-07-21 11:29:29,987 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 2669 transitions. Word has length 257 [2020-07-21 11:29:29,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:29,988 INFO L479 AbstractCegarLoop]: Abstraction has 2235 states and 2669 transitions. [2020-07-21 11:29:29,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:29:29,988 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 2669 transitions. [2020-07-21 11:29:29,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2020-07-21 11:29:29,996 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:29,996 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-07-21 11:29:30,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:30,213 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:30,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:30,214 INFO L82 PathProgramCache]: Analyzing trace with hash -417734231, now seen corresponding path program 1 times [2020-07-21 11:29:30,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:30,215 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1234772963] [2020-07-21 11:29:30,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:30,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:30,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:30,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:30,412 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:29:30,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:29:30,589 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:29:30,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1234772963] [2020-07-21 11:29:30,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:29:30,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:29:30,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486592286] [2020-07-21 11:29:30,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:29:30,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:30,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:29:30,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:29:30,594 INFO L87 Difference]: Start difference. First operand 2235 states and 2669 transitions. Second operand 6 states. [2020-07-21 11:29:31,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:31,890 INFO L93 Difference]: Finished difference Result 5384 states and 6552 transitions. [2020-07-21 11:29:31,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:29:31,890 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 266 [2020-07-21 11:29:31,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:31,902 INFO L225 Difference]: With dead ends: 5384 [2020-07-21 11:29:31,902 INFO L226 Difference]: Without dead ends: 2271 [2020-07-21 11:29:31,909 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 537 GetRequests, 528 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 11:29:31,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2271 states. [2020-07-21 11:29:31,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2271 to 2082. [2020-07-21 11:29:31,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2082 states. [2020-07-21 11:29:31,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2082 states to 2082 states and 2413 transitions. [2020-07-21 11:29:31,972 INFO L78 Accepts]: Start accepts. Automaton has 2082 states and 2413 transitions. Word has length 266 [2020-07-21 11:29:31,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:31,972 INFO L479 AbstractCegarLoop]: Abstraction has 2082 states and 2413 transitions. [2020-07-21 11:29:31,972 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:29:31,973 INFO L276 IsEmpty]: Start isEmpty. Operand 2082 states and 2413 transitions. [2020-07-21 11:29:31,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-07-21 11:29:31,981 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:31,982 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 11:29:32,194 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:32,195 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:32,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:32,195 INFO L82 PathProgramCache]: Analyzing trace with hash 492877617, now seen corresponding path program 1 times [2020-07-21 11:29:32,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:32,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1414538346] [2020-07-21 11:29:32,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:32,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:32,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:32,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:32,410 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-07-21 11:29:32,410 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:29:32,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1414538346] [2020-07-21 11:29:32,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:29:32,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:29:32,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269778717] [2020-07-21 11:29:32,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:29:32,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:32,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:29:32,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:29:32,415 INFO L87 Difference]: Start difference. First operand 2082 states and 2413 transitions. Second operand 3 states. [2020-07-21 11:29:33,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:33,042 INFO L93 Difference]: Finished difference Result 2227 states and 2558 transitions. [2020-07-21 11:29:33,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:29:33,043 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 302 [2020-07-21 11:29:33,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:33,053 INFO L225 Difference]: With dead ends: 2227 [2020-07-21 11:29:33,053 INFO L226 Difference]: Without dead ends: 2076 [2020-07-21 11:29:33,055 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 300 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 11:29:33,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2076 states. [2020-07-21 11:29:33,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2076 to 1931. [2020-07-21 11:29:33,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1931 states. [2020-07-21 11:29:33,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 2221 transitions. [2020-07-21 11:29:33,111 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 2221 transitions. Word has length 302 [2020-07-21 11:29:33,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:33,112 INFO L479 AbstractCegarLoop]: Abstraction has 1931 states and 2221 transitions. [2020-07-21 11:29:33,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:29:33,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 2221 transitions. [2020-07-21 11:29:33,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2020-07-21 11:29:33,124 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:33,124 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, 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, 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, 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] [2020-07-21 11:29:33,337 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:33,338 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:33,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:33,338 INFO L82 PathProgramCache]: Analyzing trace with hash 775353937, now seen corresponding path program 1 times [2020-07-21 11:29:33,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:33,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [828183587] [2020-07-21 11:29:33,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:33,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:33,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:33,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:33,553 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 320 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-07-21 11:29:33,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:29:33,719 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 320 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-07-21 11:29:33,720 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [828183587] [2020-07-21 11:29:33,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:29:33,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:29:33,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952097920] [2020-07-21 11:29:33,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:29:33,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:33,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:29:33,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:29:33,722 INFO L87 Difference]: Start difference. First operand 1931 states and 2221 transitions. Second operand 6 states. [2020-07-21 11:29:34,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:34,867 INFO L93 Difference]: Finished difference Result 4665 states and 5652 transitions. [2020-07-21 11:29:34,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 11:29:34,868 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 358 [2020-07-21 11:29:34,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:34,881 INFO L225 Difference]: With dead ends: 4665 [2020-07-21 11:29:34,882 INFO L226 Difference]: Without dead ends: 2740 [2020-07-21 11:29:34,888 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 721 GetRequests, 713 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:29:34,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2020-07-21 11:29:34,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 2515. [2020-07-21 11:29:34,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2515 states. [2020-07-21 11:29:34,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2515 states to 2515 states and 2881 transitions. [2020-07-21 11:29:34,964 INFO L78 Accepts]: Start accepts. Automaton has 2515 states and 2881 transitions. Word has length 358 [2020-07-21 11:29:34,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:34,967 INFO L479 AbstractCegarLoop]: Abstraction has 2515 states and 2881 transitions. [2020-07-21 11:29:34,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:29:34,968 INFO L276 IsEmpty]: Start isEmpty. Operand 2515 states and 2881 transitions. [2020-07-21 11:29:34,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2020-07-21 11:29:34,981 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:34,982 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 11:29:35,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:35,196 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:35,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:35,196 INFO L82 PathProgramCache]: Analyzing trace with hash 549515818, now seen corresponding path program 1 times [2020-07-21 11:29:35,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:35,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [851610496] [2020-07-21 11:29:35,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:35,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:35,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:35,458 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-07-21 11:29:35,459 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:29:35,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [851610496] [2020-07-21 11:29:35,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:29:35,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:29:35,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646856929] [2020-07-21 11:29:35,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:29:35,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:35,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:29:35,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:29:35,461 INFO L87 Difference]: Start difference. First operand 2515 states and 2881 transitions. Second operand 3 states. [2020-07-21 11:29:35,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:35,800 INFO L93 Difference]: Finished difference Result 2515 states and 2881 transitions. [2020-07-21 11:29:35,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:29:35,801 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 371 [2020-07-21 11:29:35,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:35,802 INFO L225 Difference]: With dead ends: 2515 [2020-07-21 11:29:35,802 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 11:29:35,807 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 369 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 11:29:35,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 11:29:35,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 11:29:35,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 11:29:35,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 11:29:35,808 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 371 [2020-07-21 11:29:35,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:35,809 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 11:29:35,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:29:35,809 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 11:29:35,809 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 11:29:36,022 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:36,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 11:29:36,558 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 147 [2020-07-21 11:29:36,753 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 147 [2020-07-21 11:29:37,914 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 140 DAG size of output: 71 [2020-07-21 11:29:38,331 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 40 [2020-07-21 11:29:38,725 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 40 [2020-07-21 11:29:38,729 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:29:38,730 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= ~a1~0 |old(~a1~0)|) (<= |old(~a10~0)| ~a10~0) (<= |old(~a1~0)| ~a1~0) (<= ~a19~0 |old(~a19~0)|)) [2020-07-21 11:29:38,730 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:29:38,730 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 11:29:38,731 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,731 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,731 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,731 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,731 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,731 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,732 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 11:29:38,732 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 11:29:38,732 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 11:29:38,732 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 11:29:38,732 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 11:29:38,732 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 11:29:38,732 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 11:29:38,733 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 11:29:38,733 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 11:29:38,733 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 11:29:38,733 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 11:29:38,733 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,733 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,733 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,733 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,733 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,733 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 11:29:38,734 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 11:29:38,734 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 11:29:38,734 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 11:29:38,734 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 11:29:38,734 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 11:29:38,734 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 11:29:38,734 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 11:29:38,734 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 11:29:38,734 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 11:29:38,734 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 11:29:38,734 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 11:29:38,734 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 11:29:38,734 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 139) no Hoare annotation was computed. [2020-07-21 11:29:38,735 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 11:29:38,735 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,735 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,735 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,735 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,735 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,735 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 11:29:38,735 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 11:29:38,735 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 11:29:38,735 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 11:29:38,735 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 11:29:38,736 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 11:29:38,736 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 11:29:38,736 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 11:29:38,736 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 11:29:38,736 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 11:29:38,736 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,736 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,736 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,737 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,737 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,737 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 11:29:38,737 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 11:29:38,737 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 11:29:38,737 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 11:29:38,737 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 11:29:38,738 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 11:29:38,738 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 11:29:38,738 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 11:29:38,738 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 11:29:38,738 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 11:29:38,738 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 11:29:38,738 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 11:29:38,738 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 11:29:38,738 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,739 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,739 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,739 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,739 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,739 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 11:29:38,739 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 11:29:38,739 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 11:29:38,739 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 11:29:38,740 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 11:29:38,740 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 11:29:38,740 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 11:29:38,740 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 11:29:38,740 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 11:29:38,740 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,740 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,740 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,741 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,741 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,741 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,741 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,741 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 11:29:38,741 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 11:29:38,741 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 11:29:38,741 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 11:29:38,741 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 11:29:38,742 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 11:29:38,742 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 11:29:38,742 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 11:29:38,742 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 11:29:38,742 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 11:29:38,742 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 11:29:38,742 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 11:29:38,742 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 11:29:38,742 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,743 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,743 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,743 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,743 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 11:29:38,743 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,743 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,743 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 11:29:38,744 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 11:29:38,744 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 11:29:38,744 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 11:29:38,744 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 11:29:38,744 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 11:29:38,744 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 11:29:38,744 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 11:29:38,744 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 11:29:38,745 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 11:29:38,745 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 11:29:38,745 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 11:29:38,745 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 11:29:38,745 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,745 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,745 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,745 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,746 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,746 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,746 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 11:29:38,746 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 11:29:38,746 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 11:29:38,746 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 11:29:38,746 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 11:29:38,746 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 11:29:38,747 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 11:29:38,747 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 11:29:38,747 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 11:29:38,747 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 11:29:38,747 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 11:29:38,748 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse3 (<= 8 ~a19~0)) (.cse5 (<= |old(~a1~0)| ~a1~0)) (.cse17 (<= 9 ~a19~0)) (.cse18 (<= 23 ~a1~0)) (.cse2 (<= ~a10~0 |old(~a10~0)|)) (.cse4 (<= ~a1~0 |old(~a1~0)|)) (.cse19 (<= |old(~a10~0)| ~a10~0)) (.cse6 (<= ~a19~0 |old(~a19~0)|))) (let ((.cse11 (and .cse2 .cse4 .cse19 .cse6)) (.cse15 (not (<= 3 |old(~a10~0)|))) (.cse1 (not (<= |old(~a19~0)| 9))) (.cse9 (not (<= |old(~a19~0)| 8))) (.cse13 (or .cse17 .cse18)) (.cse7 (<= 2 ~a10~0)) (.cse10 (not (< |old(~a10~0)| 4))) (.cse8 (not (<= 2 |old(~a10~0)|))) (.cse16 (and .cse2 .cse3 .cse4 .cse19 .cse5 .cse6)) (.cse0 (not (<= 8 |old(~a19~0)|))) (.cse14 (and (not (<= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)))) (.cse12 (not (<= |old(~a10~0)| 1)))) (and (or (not (< 218 |old(~a1~0)|)) .cse0 .cse1 (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) .cse8) (or .cse3 .cse9 .cse0 .cse10 .cse8) (or .cse11 .cse12) (or (not (<= |old(~a1~0)| 23)) (and .cse2 .cse3 .cse4 .cse13 .cse5 .cse6 .cse7) .cse0 .cse10 .cse1 .cse14 .cse8) (or .cse9 (and .cse2 .cse4 (<= 7 ~a19~0) .cse5 .cse6 .cse7) (not (<= 7 |old(~a19~0)|)) .cse10 .cse8) (or .cse15 .cse11 .cse1) (or .cse16 .cse15 .cse0 .cse1) (or .cse9 (and .cse2 .cse4 .cse13 .cse6 .cse7) .cse10 .cse14 .cse8) (or .cse16 .cse0 .cse12) (or .cse17 .cse0 .cse18 .cse14 .cse12)))) [2020-07-21 11:29:38,748 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 11:29:38,748 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 11:29:38,748 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 11:29:38,748 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,748 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,748 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,749 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,749 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,749 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,749 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 11:29:38,749 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 11:29:38,749 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 11:29:38,749 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 11:29:38,749 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 11:29:38,750 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 11:29:38,750 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 11:29:38,750 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 11:29:38,750 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 11:29:38,750 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 11:29:38,750 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 11:29:38,750 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 11:29:38,750 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 11:29:38,750 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,750 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,751 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,751 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,751 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,751 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,751 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 11:29:38,751 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 11:29:38,751 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 11:29:38,751 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 11:29:38,751 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 11:29:38,751 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 11:29:38,751 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 11:29:38,752 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 11:29:38,752 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 11:29:38,752 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 11:29:38,752 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 11:29:38,752 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 11:29:38,752 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,752 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,752 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,752 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,753 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,753 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:38,753 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 11:29:38,753 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 11:29:38,753 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 11:29:38,753 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 11:29:38,753 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 11:29:38,753 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 11:29:38,753 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 11:29:38,754 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 11:29:38,754 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 11:29:38,754 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 11:29:38,754 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 11:29:38,754 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 11:29:38,754 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:29:38,754 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= ~a19~0 9) (<= 9 ~a19~0) (<= ~a1~0 23) (<= 23 ~a1~0)) [2020-07-21 11:29:38,754 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:29:38,754 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:29:38,755 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) (<= ~a10~0 |old(~a10~0)|) (<= ~a1~0 23) (<= |old(~a10~0)| ~a10~0) (<= |old(~a1~0)| ~a1~0) (<= ~a19~0 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9))) [2020-07-21 11:29:38,755 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 11:29:38,755 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse1 (<= ~a19~0 8)) (.cse2 (or (<= 9 ~a19~0) (<= 23 ~a1~0)))) (or (not (<= 23 |old(~a1~0)|)) (<= ~a10~0 1) (not (<= |old(~a1~0)| 23)) (and .cse0 (< 218 ~a1~0)) (and .cse0 (<= 3 ~a10~0)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and .cse1 (<= 7 ~a19~0)) (not (<= |old(~a19~0)| 9)) (and .cse0 .cse2 (<= ~a1~0 23)) (and .cse1 .cse2))) [2020-07-21 11:29:38,755 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 11:29:38,755 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 11:29:38,755 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse1 (<= ~a19~0 8)) (.cse2 (or (<= 9 ~a19~0) (<= 23 ~a1~0)))) (or (not (<= 23 |old(~a1~0)|)) (<= ~a10~0 1) (not (<= |old(~a1~0)| 23)) (and .cse0 (< 218 ~a1~0)) (and .cse0 (<= 3 ~a10~0)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and .cse1 (<= 7 ~a19~0)) (not (<= |old(~a19~0)| 9)) (and .cse0 .cse2 (<= ~a1~0 23)) (and .cse1 .cse2))) [2020-07-21 11:29:38,756 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 11:29:38,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:29:38 BoogieIcfgContainer [2020-07-21 11:29:38,778 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:29:38,784 INFO L168 Benchmark]: Toolchain (without parser) took 23346.05 ms. Allocated memory was 139.5 MB in the beginning and 565.2 MB in the end (delta: 425.7 MB). Free memory was 101.2 MB in the beginning and 248.6 MB in the end (delta: -147.4 MB). Peak memory consumption was 389.6 MB. Max. memory is 7.1 GB. [2020-07-21 11:29:38,785 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 11:29:38,786 INFO L168 Benchmark]: CACSL2BoogieTranslator took 818.37 ms. Allocated memory was 139.5 MB in the beginning and 207.1 MB in the end (delta: 67.6 MB). Free memory was 100.7 MB in the beginning and 173.5 MB in the end (delta: -72.8 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. [2020-07-21 11:29:38,787 INFO L168 Benchmark]: Boogie Preprocessor took 102.59 ms. Allocated memory is still 207.1 MB. Free memory was 173.5 MB in the beginning and 168.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-21 11:29:38,788 INFO L168 Benchmark]: RCFGBuilder took 1561.14 ms. Allocated memory was 207.1 MB in the beginning and 239.1 MB in the end (delta: 32.0 MB). Free memory was 168.8 MB in the beginning and 182.3 MB in the end (delta: -13.5 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB. [2020-07-21 11:29:38,789 INFO L168 Benchmark]: TraceAbstraction took 20856.04 ms. Allocated memory was 239.1 MB in the beginning and 565.2 MB in the end (delta: 326.1 MB). Free memory was 182.3 MB in the beginning and 248.6 MB in the end (delta: -66.3 MB). Peak memory consumption was 371.1 MB. Max. memory is 7.1 GB. [2020-07-21 11:29:38,792 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 818.37 ms. Allocated memory was 139.5 MB in the beginning and 207.1 MB in the end (delta: 67.6 MB). Free memory was 100.7 MB in the beginning and 173.5 MB in the end (delta: -72.8 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.59 ms. Allocated memory is still 207.1 MB. Free memory was 173.5 MB in the beginning and 168.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1561.14 ms. Allocated memory was 207.1 MB in the beginning and 239.1 MB in the end (delta: 32.0 MB). Free memory was 168.8 MB in the beginning and 182.3 MB in the end (delta: -13.5 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20856.04 ms. Allocated memory was 239.1 MB in the beginning and 565.2 MB in the end (delta: 326.1 MB). Free memory was 182.3 MB in the beginning and 248.6 MB in the end (delta: -66.3 MB). Peak memory consumption was 371.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 139]: 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: 582]: Loop Invariant Derived loop invariant: (((((((((!(23 <= \old(a1)) || a10 <= 1) || !(\old(a1) <= 23)) || (a19 <= 9 && 218 < a1)) || (a19 <= 9 && 3 <= a10)) || !(\old(a10) <= 0)) || !(9 <= \old(a19))) || (a19 <= 8 && 7 <= a19)) || !(\old(a19) <= 9)) || ((a19 <= 9 && (9 <= a19 || 23 <= a1)) && a1 <= 23)) || (a19 <= 8 && (9 <= a19 || 23 <= a1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.0s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 11.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 455 SDtfs, 2902 SDslu, 314 SDs, 0 SdLazy, 6981 SolverSat, 1390 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3667 GetRequests, 3607 SyntacticMatches, 6 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2515occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 1644 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 105 PreInvPairs, 153 NumberOfFragments, 528 HoareAnnotationTreeSize, 105 FomulaSimplifications, 43910 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 17077 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 2552 NumberOfCodeBlocks, 2552 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 3629 ConstructedInterpolants, 0 QuantifiedInterpolants, 2174017 SizeOfPredicates, 14 NumberOfNonLiveVariables, 4463 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 16 InterpolantComputations, 8 PerfectInterpolantSequences, 2590/2606 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...