/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/Problem02_label56.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 11:36:47,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 11:36:47,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 11:36:47,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 11:36:47,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 11:36:47,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 11:36:47,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 11:36:47,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 11:36:47,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 11:36:47,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 11:36:47,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 11:36:47,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 11:36:47,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 11:36:47,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 11:36:47,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 11:36:47,231 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 11:36:47,231 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 11:36:47,232 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 11:36:47,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 11:36:47,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 11:36:47,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 11:36:47,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 11:36:47,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 11:36:47,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 11:36:47,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 11:36:47,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 11:36:47,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 11:36:47,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 11:36:47,253 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 11:36:47,267 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 11:36:47,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 11:36:47,268 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 11:36:47,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 11:36:47,269 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 11:36:47,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 11:36:47,269 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 11:36:47,269 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 11:36:47,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 11:36:47,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 11:36:47,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 11:36:47,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 11:36:47,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 11:36:47,271 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 11:36:47,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 11:36:47,271 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 11:36:47,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 11:36:47,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 11:36:47,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 11:36:47,272 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 11:36:47,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 11:36:47,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:36:47,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 11:36:47,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 11:36:47,273 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 11:36:47,273 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 11:36:47,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:47,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 11:36:47,274 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 11:36:47,274 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 [2020-07-20 11:36:47,569 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 11:36:47,588 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 11:36:47,591 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 11:36:47,593 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 11:36:47,593 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 11:36:47,594 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label56.c [2020-07-20 11:36:47,673 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8197e4ed3/1509090de4f14bae9b2e55c6cefd2fb8/FLAGc6cefa076 [2020-07-20 11:36:48,329 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 11:36:48,330 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label56.c [2020-07-20 11:36:48,345 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8197e4ed3/1509090de4f14bae9b2e55c6cefd2fb8/FLAGc6cefa076 [2020-07-20 11:36:48,552 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8197e4ed3/1509090de4f14bae9b2e55c6cefd2fb8 [2020-07-20 11:36:48,564 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 11:36:48,568 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 11:36:48,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 11:36:48,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 11:36:48,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 11:36:48,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:36:48" (1/1) ... [2020-07-20 11:36:48,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40808b08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:48, skipping insertion in model container [2020-07-20 11:36:48,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:36:48" (1/1) ... [2020-07-20 11:36:48,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 11:36:48,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 11:36:49,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:36:49,157 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 11:36:49,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:36:49,499 INFO L208 MainTranslator]: Completed translation [2020-07-20 11:36:49,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:49 WrapperNode [2020-07-20 11:36:49,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 11:36:49,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 11:36:49,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 11:36:49,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 11:36:49,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:49" (1/1) ... [2020-07-20 11:36:49,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:49" (1/1) ... [2020-07-20 11:36:49,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:49" (1/1) ... [2020-07-20 11:36:49,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:49" (1/1) ... [2020-07-20 11:36:49,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:49" (1/1) ... [2020-07-20 11:36:49,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:49" (1/1) ... [2020-07-20 11:36:49,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:49" (1/1) ... [2020-07-20 11:36:49,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 11:36:49,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 11:36:49,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 11:36:49,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 11:36:49,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:36:49,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 11:36:49,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 11:36:49,693 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 11:36:49,693 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 11:36:49,693 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 11:36:49,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 11:36:49,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 11:36:49,694 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 11:36:49,695 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 11:36:49,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 11:36:49,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 11:36:50,937 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 11:36:50,937 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 11:36:50,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:36:50 BoogieIcfgContainer [2020-07-20 11:36:50,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 11:36:50,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 11:36:50,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 11:36:50,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 11:36:50,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:36:48" (1/3) ... [2020-07-20 11:36:50,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d150171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:36:50, skipping insertion in model container [2020-07-20 11:36:50,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:49" (2/3) ... [2020-07-20 11:36:50,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d150171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:36:50, skipping insertion in model container [2020-07-20 11:36:50,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:36:50" (3/3) ... [2020-07-20 11:36:50,954 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label56.c [2020-07-20 11:36:50,966 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 11:36:50,974 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 11:36:50,990 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 11:36:51,018 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 11:36:51,018 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 11:36:51,019 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 11:36:51,019 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 11:36:51,019 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 11:36:51,019 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 11:36:51,019 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 11:36:51,019 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 11:36:51,049 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 11:36:51,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-20 11:36:51,066 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:51,067 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:51,068 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:51,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:51,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1821084561, now seen corresponding path program 1 times [2020-07-20 11:36:51,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:51,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1220248256] [2020-07-20 11:36:51,089 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 [2020-07-20 11:36:51,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:51,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:36:51,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:51,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:36:51,412 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:36:51,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1220248256] [2020-07-20 11:36:51,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:36:51,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:36:51,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739759806] [2020-07-20 11:36:51,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:36:51,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:51,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:36:51,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:51,437 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 11:36:52,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:52,407 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-20 11:36:52,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:36:52,409 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2020-07-20 11:36:52,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:52,427 INFO L225 Difference]: With dead ends: 619 [2020-07-20 11:36:52,428 INFO L226 Difference]: Without dead ends: 321 [2020-07-20 11:36:52,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:52,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-20 11:36:52,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-20 11:36:52,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-20 11:36:52,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-20 11:36:52,518 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 129 [2020-07-20 11:36:52,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:52,519 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-20 11:36:52,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:36:52,520 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-20 11:36:52,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-07-20 11:36:52,524 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:52,525 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:52,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:52,739 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:52,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:52,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1159828288, now seen corresponding path program 1 times [2020-07-20 11:36:52,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:52,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [355493022] [2020-07-20 11:36:52,741 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 [2020-07-20 11:36:52,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:52,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 11:36:52,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:52,908 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 11:36:52,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:53,044 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 11:36:53,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [355493022] [2020-07-20 11:36:53,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 11:36:53,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-20 11:36:53,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117989267] [2020-07-20 11:36:53,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 11:36:53,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:53,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 11:36:53,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:36:53,053 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 4 states. [2020-07-20 11:36:53,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:53,723 INFO L93 Difference]: Finished difference Result 941 states and 1256 transitions. [2020-07-20 11:36:53,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 11:36:53,724 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 138 [2020-07-20 11:36:53,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:53,752 INFO L225 Difference]: With dead ends: 941 [2020-07-20 11:36:53,753 INFO L226 Difference]: Without dead ends: 628 [2020-07-20 11:36:53,754 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 268 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:36:53,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2020-07-20 11:36:53,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2020-07-20 11:36:53,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2020-07-20 11:36:53,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 815 transitions. [2020-07-20 11:36:53,795 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 815 transitions. Word has length 138 [2020-07-20 11:36:53,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:53,796 INFO L479 AbstractCegarLoop]: Abstraction has 628 states and 815 transitions. [2020-07-20 11:36:53,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 11:36:53,796 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 815 transitions. [2020-07-20 11:36:53,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-20 11:36:53,801 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:53,801 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:54,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:54,011 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:54,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:54,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1202576379, now seen corresponding path program 1 times [2020-07-20 11:36:54,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:54,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [380190600] [2020-07-20 11:36:54,015 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 [2020-07-20 11:36:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:54,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:54,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:54,150 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 11:36:54,151 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:36:54,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [380190600] [2020-07-20 11:36:54,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:36:54,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:36:54,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865336712] [2020-07-20 11:36:54,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:36:54,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:54,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:36:54,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:54,153 INFO L87 Difference]: Start difference. First operand 628 states and 815 transitions. Second operand 3 states. [2020-07-20 11:36:54,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:54,845 INFO L93 Difference]: Finished difference Result 1543 states and 2083 transitions. [2020-07-20 11:36:54,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:36:54,846 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2020-07-20 11:36:54,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:54,853 INFO L225 Difference]: With dead ends: 1543 [2020-07-20 11:36:54,854 INFO L226 Difference]: Without dead ends: 921 [2020-07-20 11:36:54,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:54,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2020-07-20 11:36:54,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 919. [2020-07-20 11:36:54,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2020-07-20 11:36:54,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1209 transitions. [2020-07-20 11:36:54,907 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1209 transitions. Word has length 146 [2020-07-20 11:36:54,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:54,908 INFO L479 AbstractCegarLoop]: Abstraction has 919 states and 1209 transitions. [2020-07-20 11:36:54,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:36:54,908 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1209 transitions. [2020-07-20 11:36:54,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-20 11:36:54,913 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:54,914 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:55,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:55,127 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:55,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:55,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1262915279, now seen corresponding path program 1 times [2020-07-20 11:36:55,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:55,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [190022833] [2020-07-20 11:36:55,130 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 [2020-07-20 11:36:55,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:55,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 11:36:55,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:55,296 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-20 11:36:55,297 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:36:55,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [190022833] [2020-07-20 11:36:55,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:36:55,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 11:36:55,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981276461] [2020-07-20 11:36:55,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:36:55,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:55,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:36:55,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:36:55,299 INFO L87 Difference]: Start difference. First operand 919 states and 1209 transitions. Second operand 5 states. [2020-07-20 11:36:56,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:56,101 INFO L93 Difference]: Finished difference Result 2770 states and 3826 transitions. [2020-07-20 11:36:56,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 11:36:56,103 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2020-07-20 11:36:56,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:56,127 INFO L225 Difference]: With dead ends: 2770 [2020-07-20 11:36:56,127 INFO L226 Difference]: Without dead ends: 1857 [2020-07-20 11:36:56,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:36:56,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1857 states. [2020-07-20 11:36:56,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1857 to 1829. [2020-07-20 11:36:56,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1829 states. [2020-07-20 11:36:56,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 2367 transitions. [2020-07-20 11:36:56,296 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 2367 transitions. Word has length 152 [2020-07-20 11:36:56,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:56,297 INFO L479 AbstractCegarLoop]: Abstraction has 1829 states and 2367 transitions. [2020-07-20 11:36:56,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:36:56,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 2367 transitions. [2020-07-20 11:36:56,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-07-20 11:36:56,311 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:56,312 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:56,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:56,526 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:56,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:56,527 INFO L82 PathProgramCache]: Analyzing trace with hash -989124760, now seen corresponding path program 1 times [2020-07-20 11:36:56,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:56,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [615796482] [2020-07-20 11:36:56,528 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 [2020-07-20 11:36:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:56,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:56,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:56,663 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:36:56,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:56,733 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:36:56,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [615796482] [2020-07-20 11:36:56,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:36:56,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 11:36:56,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211758707] [2020-07-20 11:36:56,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 11:36:56,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:56,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 11:36:56,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:36:56,736 INFO L87 Difference]: Start difference. First operand 1829 states and 2367 transitions. Second operand 6 states. [2020-07-20 11:36:57,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:57,728 INFO L93 Difference]: Finished difference Result 4140 states and 5483 transitions. [2020-07-20 11:36:57,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:36:57,728 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 160 [2020-07-20 11:36:57,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:57,742 INFO L225 Difference]: With dead ends: 4140 [2020-07-20 11:36:57,743 INFO L226 Difference]: Without dead ends: 2317 [2020-07-20 11:36:57,750 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 314 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:36:57,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2317 states. [2020-07-20 11:36:57,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2317 to 2305. [2020-07-20 11:36:57,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2305 states. [2020-07-20 11:36:57,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 3033 transitions. [2020-07-20 11:36:57,833 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 3033 transitions. Word has length 160 [2020-07-20 11:36:57,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:57,833 INFO L479 AbstractCegarLoop]: Abstraction has 2305 states and 3033 transitions. [2020-07-20 11:36:57,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 11:36:57,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 3033 transitions. [2020-07-20 11:36:57,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-07-20 11:36:57,842 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:57,842 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:58,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:58,058 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:58,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:58,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1429632528, now seen corresponding path program 1 times [2020-07-20 11:36:58,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:58,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [969457080] [2020-07-20 11:36:58,061 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 [2020-07-20 11:36:58,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:58,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:58,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:58,194 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 11:36:58,195 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:36:58,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [969457080] [2020-07-20 11:36:58,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:36:58,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:36:58,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761447225] [2020-07-20 11:36:58,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:36:58,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:58,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:36:58,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:58,197 INFO L87 Difference]: Start difference. First operand 2305 states and 3033 transitions. Second operand 3 states. [2020-07-20 11:36:58,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:58,854 INFO L93 Difference]: Finished difference Result 5910 states and 7904 transitions. [2020-07-20 11:36:58,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:36:58,855 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2020-07-20 11:36:58,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:58,867 INFO L225 Difference]: With dead ends: 5910 [2020-07-20 11:36:58,868 INFO L226 Difference]: Without dead ends: 2285 [2020-07-20 11:36:58,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:58,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2285 states. [2020-07-20 11:36:58,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2285 to 2285. [2020-07-20 11:36:58,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2285 states. [2020-07-20 11:36:58,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2285 states to 2285 states and 2909 transitions. [2020-07-20 11:36:58,934 INFO L78 Accepts]: Start accepts. Automaton has 2285 states and 2909 transitions. Word has length 164 [2020-07-20 11:36:58,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:58,935 INFO L479 AbstractCegarLoop]: Abstraction has 2285 states and 2909 transitions. [2020-07-20 11:36:58,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:36:58,935 INFO L276 IsEmpty]: Start isEmpty. Operand 2285 states and 2909 transitions. [2020-07-20 11:36:58,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-20 11:36:58,942 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:58,943 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:59,157 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:59,158 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:59,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:59,159 INFO L82 PathProgramCache]: Analyzing trace with hash 637450697, now seen corresponding path program 1 times [2020-07-20 11:36:59,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:59,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184411536] [2020-07-20 11:36:59,161 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 [2020-07-20 11:36:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:59,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:59,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:59,297 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 11:36:59,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:59,371 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 11:36:59,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1184411536] [2020-07-20 11:36:59,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:36:59,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 11:36:59,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440893092] [2020-07-20 11:36:59,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 11:36:59,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:59,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 11:36:59,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:36:59,375 INFO L87 Difference]: Start difference. First operand 2285 states and 2909 transitions. Second operand 6 states. [2020-07-20 11:37:00,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:37:00,359 INFO L93 Difference]: Finished difference Result 5192 states and 6717 transitions. [2020-07-20 11:37:00,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 11:37:00,360 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2020-07-20 11:37:00,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:37:00,375 INFO L225 Difference]: With dead ends: 5192 [2020-07-20 11:37:00,375 INFO L226 Difference]: Without dead ends: 2913 [2020-07-20 11:37:00,382 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 360 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:37:00,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2913 states. [2020-07-20 11:37:00,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2913 to 2899. [2020-07-20 11:37:00,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2899 states. [2020-07-20 11:37:00,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2899 states to 2899 states and 3504 transitions. [2020-07-20 11:37:00,450 INFO L78 Accepts]: Start accepts. Automaton has 2899 states and 3504 transitions. Word has length 182 [2020-07-20 11:37:00,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:37:00,451 INFO L479 AbstractCegarLoop]: Abstraction has 2899 states and 3504 transitions. [2020-07-20 11:37:00,451 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 11:37:00,451 INFO L276 IsEmpty]: Start isEmpty. Operand 2899 states and 3504 transitions. [2020-07-20 11:37:00,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-07-20 11:37:00,461 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:37:00,461 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:37:00,676 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:00,677 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:37:00,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:37:00,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1052030863, now seen corresponding path program 1 times [2020-07-20 11:37:00,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:37:00,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2038963991] [2020-07-20 11:37:00,679 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 [2020-07-20 11:37:00,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:37:00,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:37:00,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:37:00,851 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-20 11:37:00,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:37:01,056 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-20 11:37:01,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2038963991] [2020-07-20 11:37:01,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:37:01,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:37:01,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87329537] [2020-07-20 11:37:01,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:37:01,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:37:01,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:37:01,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:37:01,061 INFO L87 Difference]: Start difference. First operand 2899 states and 3504 transitions. Second operand 7 states. [2020-07-20 11:37:02,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:37:02,048 INFO L93 Difference]: Finished difference Result 7468 states and 9061 transitions. [2020-07-20 11:37:02,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:37:02,054 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 227 [2020-07-20 11:37:02,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:37:02,074 INFO L225 Difference]: With dead ends: 7468 [2020-07-20 11:37:02,074 INFO L226 Difference]: Without dead ends: 4574 [2020-07-20 11:37:02,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 449 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:37:02,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4574 states. [2020-07-20 11:37:02,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4574 to 4541. [2020-07-20 11:37:02,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4541 states. [2020-07-20 11:37:02,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4541 states to 4541 states and 5450 transitions. [2020-07-20 11:37:02,205 INFO L78 Accepts]: Start accepts. Automaton has 4541 states and 5450 transitions. Word has length 227 [2020-07-20 11:37:02,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:37:02,206 INFO L479 AbstractCegarLoop]: Abstraction has 4541 states and 5450 transitions. [2020-07-20 11:37:02,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:37:02,206 INFO L276 IsEmpty]: Start isEmpty. Operand 4541 states and 5450 transitions. [2020-07-20 11:37:02,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-07-20 11:37:02,224 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:37:02,224 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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, 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] [2020-07-20 11:37:02,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:02,439 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:37:02,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:37:02,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1880332291, now seen corresponding path program 1 times [2020-07-20 11:37:02,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:37:02,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1799889928] [2020-07-20 11:37:02,440 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 [2020-07-20 11:37:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:37:02,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:37:02,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:37:02,708 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-20 11:37:02,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:37:02,813 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 114 proven. 36 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-20 11:37:02,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1799889928] [2020-07-20 11:37:02,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:37:02,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 11:37:02,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443693313] [2020-07-20 11:37:02,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 11:37:02,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:37:02,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 11:37:02,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:37:02,816 INFO L87 Difference]: Start difference. First operand 4541 states and 5450 transitions. Second operand 6 states. [2020-07-20 11:37:03,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:37:03,243 INFO L93 Difference]: Finished difference Result 8756 states and 10503 transitions. [2020-07-20 11:37:03,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 11:37:03,243 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 229 [2020-07-20 11:37:03,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:37:03,259 INFO L225 Difference]: With dead ends: 8756 [2020-07-20 11:37:03,259 INFO L226 Difference]: Without dead ends: 4221 [2020-07-20 11:37:03,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 452 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:37:03,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4221 states. [2020-07-20 11:37:03,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4221 to 4217. [2020-07-20 11:37:03,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4217 states. [2020-07-20 11:37:03,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4217 states to 4217 states and 4895 transitions. [2020-07-20 11:37:03,374 INFO L78 Accepts]: Start accepts. Automaton has 4217 states and 4895 transitions. Word has length 229 [2020-07-20 11:37:03,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:37:03,375 INFO L479 AbstractCegarLoop]: Abstraction has 4217 states and 4895 transitions. [2020-07-20 11:37:03,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 11:37:03,375 INFO L276 IsEmpty]: Start isEmpty. Operand 4217 states and 4895 transitions. [2020-07-20 11:37:03,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-07-20 11:37:03,391 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:37:03,392 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:37:03,604 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:03,605 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:37:03,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:37:03,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1522903008, now seen corresponding path program 1 times [2020-07-20 11:37:03,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:37:03,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [264992298] [2020-07-20 11:37:03,607 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 [2020-07-20 11:37:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:37:03,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:37:03,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:37:03,850 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 207 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-20 11:37:03,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:37:03,979 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 172 proven. 36 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-07-20 11:37:03,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [264992298] [2020-07-20 11:37:03,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:37:03,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:37:03,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456416364] [2020-07-20 11:37:03,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:37:03,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:37:03,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:37:03,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:37:03,983 INFO L87 Difference]: Start difference. First operand 4217 states and 4895 transitions. Second operand 7 states. [2020-07-20 11:37:05,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:37:05,344 INFO L93 Difference]: Finished difference Result 9866 states and 11437 transitions. [2020-07-20 11:37:05,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:37:05,344 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 263 [2020-07-20 11:37:05,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:37:05,365 INFO L225 Difference]: With dead ends: 9866 [2020-07-20 11:37:05,366 INFO L226 Difference]: Without dead ends: 5799 [2020-07-20 11:37:05,374 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 521 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:37:05,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5799 states. [2020-07-20 11:37:05,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5799 to 5505. [2020-07-20 11:37:05,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5505 states. [2020-07-20 11:37:05,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5505 states to 5505 states and 6167 transitions. [2020-07-20 11:37:05,496 INFO L78 Accepts]: Start accepts. Automaton has 5505 states and 6167 transitions. Word has length 263 [2020-07-20 11:37:05,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:37:05,496 INFO L479 AbstractCegarLoop]: Abstraction has 5505 states and 6167 transitions. [2020-07-20 11:37:05,497 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:37:05,497 INFO L276 IsEmpty]: Start isEmpty. Operand 5505 states and 6167 transitions. [2020-07-20 11:37:05,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-07-20 11:37:05,513 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:37:05,513 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:37:05,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:05,729 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:37:05,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:37:05,731 INFO L82 PathProgramCache]: Analyzing trace with hash -834923932, now seen corresponding path program 1 times [2020-07-20 11:37:05,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:37:05,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [224034694] [2020-07-20 11:37:05,732 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 [2020-07-20 11:37:05,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:37:05,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 11:37:05,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:37:06,026 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 166 proven. 2 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2020-07-20 11:37:06,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:37:06,231 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 174 proven. 80 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2020-07-20 11:37:06,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [224034694] [2020-07-20 11:37:06,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:37:06,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:37:06,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634089566] [2020-07-20 11:37:06,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:37:06,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:37:06,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:37:06,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:37:06,237 INFO L87 Difference]: Start difference. First operand 5505 states and 6167 transitions. Second operand 7 states. [2020-07-20 11:37:07,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:37:07,430 INFO L93 Difference]: Finished difference Result 10254 states and 11467 transitions. [2020-07-20 11:37:07,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 11:37:07,431 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 295 [2020-07-20 11:37:07,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:37:07,432 INFO L225 Difference]: With dead ends: 10254 [2020-07-20 11:37:07,432 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 11:37:07,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 586 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:37:07,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 11:37:07,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 11:37:07,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 11:37:07,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 11:37:07,453 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 295 [2020-07-20 11:37:07,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:37:07,453 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 11:37:07,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:37:07,453 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 11:37:07,454 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 11:37:07,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:07,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 11:37:08,189 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 83 [2020-07-20 11:37:09,607 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 155 DAG size of output: 75 [2020-07-20 11:37:10,176 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 52 [2020-07-20 11:37:10,701 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 52 [2020-07-20 11:37:10,705 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:37:10,706 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|)) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-20 11:37:10,706 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:37:10,706 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,707 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,707 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,707 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,707 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,707 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 11:37:10,708 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 11:37:10,708 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 11:37:10,708 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 11:37:10,708 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 11:37:10,708 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 11:37:10,708 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 11:37:10,708 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 11:37:10,709 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 11:37:10,709 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 11:37:10,709 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 11:37:10,709 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 11:37:10,709 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 11:37:10,709 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,709 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,709 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,710 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,710 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 11:37:10,710 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,710 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 11:37:10,710 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 11:37:10,710 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 11:37:10,710 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 11:37:10,710 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 11:37:10,711 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 11:37:10,711 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 11:37:10,711 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 11:37:10,711 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 11:37:10,711 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 11:37:10,711 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 11:37:10,711 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 11:37:10,711 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 11:37:10,712 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 11:37:10,712 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 11:37:10,712 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,712 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,712 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,712 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,712 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,713 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 541) no Hoare annotation was computed. [2020-07-20 11:37:10,713 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 11:37:10,713 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 11:37:10,713 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 11:37:10,713 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 11:37:10,713 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 11:37:10,713 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 11:37:10,713 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 11:37:10,714 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 11:37:10,714 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 11:37:10,714 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 11:37:10,714 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 11:37:10,714 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,714 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,714 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,714 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,714 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,715 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 11:37:10,715 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 11:37:10,715 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 11:37:10,715 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 11:37:10,715 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 11:37:10,715 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 11:37:10,715 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 11:37:10,715 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 11:37:10,716 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 11:37:10,716 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 11:37:10,716 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 11:37:10,716 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 11:37:10,716 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 11:37:10,716 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,716 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,716 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,717 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,717 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,717 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 11:37:10,717 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 11:37:10,717 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 11:37:10,717 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 11:37:10,717 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 11:37:10,717 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 11:37:10,718 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 11:37:10,718 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 11:37:10,718 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 11:37:10,718 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 11:37:10,718 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 11:37:10,718 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 11:37:10,718 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 11:37:10,719 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 11:37:10,719 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 11:37:10,719 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 11:37:10,719 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,719 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,719 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,719 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,720 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 11:37:10,720 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,720 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 11:37:10,720 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,720 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 11:37:10,745 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 11:37:10,745 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 11:37:10,745 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,745 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,745 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 11:37:10,745 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 11:37:10,745 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 11:37:10,745 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 11:37:10,745 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 11:37:10,746 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 11:37:10,746 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 11:37:10,746 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 11:37:10,746 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 11:37:10,746 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 11:37:10,746 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 11:37:10,746 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,746 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,746 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,746 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,747 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,747 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,747 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 11:37:10,747 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 11:37:10,747 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 11:37:10,747 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 11:37:10,747 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 11:37:10,748 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 11:37:10,748 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 11:37:10,748 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 11:37:10,748 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 11:37:10,748 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 11:37:10,748 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 11:37:10,748 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,748 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,749 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,749 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,749 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,749 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,749 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 11:37:10,749 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 11:37:10,749 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 11:37:10,749 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 11:37:10,749 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 11:37:10,750 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 11:37:10,750 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 11:37:10,750 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 11:37:10,750 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 11:37:10,750 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 11:37:10,750 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 11:37:10,750 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 11:37:10,750 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 11:37:10,751 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 11:37:10,751 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,751 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,751 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,752 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse10 (<= ~a17~0 |old(~a17~0)|)) (.cse12 (<= ~a28~0 |old(~a28~0)|)) (.cse13 (= ~a19~0 |old(~a19~0)|)) (.cse14 (<= |old(~a28~0)| ~a28~0)) (.cse22 (= 1 ~a25~0)) (.cse11 (<= ~a11~0 0))) (let ((.cse18 (<= ~a28~0 10)) (.cse19 (<= ~a17~0 7)) (.cse17 (or .cse11 (< 0 |old(~a11~0)|))) (.cse15 (= ~a25~0 |old(~a25~0)|)) (.cse1 (and .cse10 .cse11 .cse12 .cse13 .cse14 .cse22)) (.cse8 (not (<= |old(~a28~0)| 7))) (.cse16 (not (<= |old(~a17~0)| 7))) (.cse20 (not (<= |old(~a28~0)| 9))) (.cse9 (not (<= |old(~a25~0)| 0))) (.cse4 (not (<= |old(~a19~0)| 0))) (.cse6 (not (<= |old(~a11~0)| 0))) (.cse7 (not (= 1 |old(~a19~0)|))) (.cse0 (not (<= |old(~a28~0)| 10))) (.cse2 (not (<= 9 |old(~a28~0)|))) (.cse3 (not (= 1 |old(~a25~0)|))) (.cse21 (and .cse10 .cse12 .cse13 .cse14 .cse22)) (.cse5 (not (<= |old(~a17~0)| 8)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (or .cse7 .cse8 .cse9 (and .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) .cse5 .cse6) (or .cse0 .cse16 (and .cse17 .cse18 .cse19 .cse13)) (or .cse12 .cse20 .cse16) (or .cse7 .cse0 .cse2 .cse9 (and .cse10 .cse18 .cse13 .cse14 .cse15) .cse5) (or .cse20 .cse9 (and .cse10 .cse12 .cse13 .cse14 .cse15) .cse4 .cse5) (or .cse7 .cse0 .cse11 .cse2 .cse9 .cse5 .cse6) (or .cse7 .cse16 (and .cse12 .cse19 .cse13)) (or .cse8 (and .cse10 .cse12 .cse17 .cse13 .cse14 .cse15) .cse4 .cse5) (or .cse7 .cse2 .cse20 .cse9 (<= ~a28~0 9) .cse5) (or .cse7 .cse1 .cse3 .cse5 .cse6) (or .cse7 .cse8 .cse3 .cse21 .cse5) (or .cse7 .cse11 .cse16 .cse6) (or .cse11 .cse20 .cse9 .cse4 .cse5 .cse6) (or .cse7 .cse0 .cse2 .cse3 .cse21 .cse5)))) [2020-07-20 11:37:10,752 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,752 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,752 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,752 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 11:37:10,752 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 11:37:10,752 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 11:37:10,753 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 11:37:10,753 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 11:37:10,753 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 11:37:10,753 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 11:37:10,753 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 11:37:10,753 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 11:37:10,753 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 11:37:10,753 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 11:37:10,754 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 11:37:10,754 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 11:37:10,754 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,754 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,754 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,754 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,754 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,754 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,754 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 11:37:10,755 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 11:37:10,755 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 11:37:10,755 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 11:37:10,755 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 11:37:10,755 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 11:37:10,755 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 11:37:10,755 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 11:37:10,755 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 11:37:10,756 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 11:37:10,756 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 11:37:10,756 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 11:37:10,756 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 11:37:10,756 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 11:37:10,756 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 11:37:10,756 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 11:37:10,756 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,757 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,757 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,757 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,757 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:37:10,757 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 11:37:10,757 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 11:37:10,757 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 11:37:10,757 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 11:37:10,757 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 11:37:10,758 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 11:37:10,758 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 11:37:10,758 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 11:37:10,758 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 11:37:10,758 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 11:37:10,758 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 11:37:10,758 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 11:37:10,758 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 11:37:10,758 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 11:37:10,759 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 11:37:10,759 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 11:37:10,759 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 11:37:10,759 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 11:37:10,759 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 11:37:10,759 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:37:10,759 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a25~0 0) (<= ~a28~0 7)) [2020-07-20 11:37:10,759 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 11:37:10,760 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:37:10,760 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-20 11:37:10,760 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse9 (<= ~a25~0 0)) (.cse1 (<= ~a19~0 0)) (.cse4 (<= ~a17~0 7)) (.cse7 (<= ~a28~0 10)) (.cse8 (<= 1 ~a19~0)) (.cse10 (<= ~a19~0 |old(~a19~0)|)) (.cse11 (<= 9 ~a28~0)) (.cse5 (= 1 ~a25~0)) (.cse3 (= 1 ~a19~0)) (.cse0 (<= ~a17~0 |old(~a17~0)|)) (.cse6 (<= ~a11~0 0)) (.cse2 (<= ~a28~0 7))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2) (not (<= |old(~a28~0)| 7)) (and .cse3 .cse4) (and .cse3 .cse0 .cse2 .cse5) (and .cse3 .cse0 .cse6 .cse5) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 (<= ~a28~0 9) .cse9 .cse1) (and .cse0 .cse6 .cse7 .cse1 .cse11 .cse5) (not (<= |old(~a25~0)| 0)) (and .cse7 .cse4) (not (<= |old(~a17~0)| 8)) (and .cse0 .cse7 .cse8 .cse10 .cse11 .cse5) (and .cse3 .cse0 .cse6 .cse2 (= ~a25~0 |old(~a25~0)|)))) [2020-07-20 11:37:10,760 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 11:37:10,760 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 11:37:10,761 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse9 (<= ~a25~0 0)) (.cse1 (<= ~a19~0 0)) (.cse4 (<= ~a17~0 7)) (.cse7 (<= ~a28~0 10)) (.cse8 (<= 1 ~a19~0)) (.cse10 (<= ~a19~0 |old(~a19~0)|)) (.cse11 (<= 9 ~a28~0)) (.cse5 (= 1 ~a25~0)) (.cse3 (= 1 ~a19~0)) (.cse0 (<= ~a17~0 |old(~a17~0)|)) (.cse6 (<= ~a11~0 0)) (.cse2 (<= ~a28~0 7))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2) (not (<= |old(~a28~0)| 7)) (and .cse3 .cse4) (and .cse3 .cse0 .cse2 .cse5) (and .cse3 .cse0 .cse6 .cse5) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 (<= ~a28~0 9) .cse9 .cse1) (and .cse0 .cse6 .cse7 .cse1 .cse11 .cse5) (not (<= |old(~a25~0)| 0)) (and .cse7 .cse4) (not (<= |old(~a17~0)| 8)) (and .cse0 .cse7 .cse8 .cse10 .cse11 .cse5) (and .cse3 .cse0 .cse6 .cse2 (= ~a25~0 |old(~a25~0)|)))) [2020-07-20 11:37:10,761 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 11:37:10,761 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 11:37:10,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:37:10 BoogieIcfgContainer [2020-07-20 11:37:10,783 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 11:37:10,785 INFO L168 Benchmark]: Toolchain (without parser) took 22219.37 ms. Allocated memory was 142.6 MB in the beginning and 554.2 MB in the end (delta: 411.6 MB). Free memory was 99.3 MB in the beginning and 491.0 MB in the end (delta: -391.7 MB). Peak memory consumption was 406.0 MB. Max. memory is 7.1 GB. [2020-07-20 11:37:10,786 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 142.6 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 11:37:10,787 INFO L168 Benchmark]: CACSL2BoogieTranslator took 930.99 ms. Allocated memory was 142.6 MB in the beginning and 205.5 MB in the end (delta: 62.9 MB). Free memory was 98.9 MB in the beginning and 172.5 MB in the end (delta: -73.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. [2020-07-20 11:37:10,787 INFO L168 Benchmark]: Boogie Preprocessor took 99.25 ms. Allocated memory is still 205.5 MB. Free memory was 172.5 MB in the beginning and 168.0 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-07-20 11:37:10,788 INFO L168 Benchmark]: RCFGBuilder took 1344.07 ms. Allocated memory was 205.5 MB in the beginning and 233.8 MB in the end (delta: 28.3 MB). Free memory was 168.0 MB in the beginning and 182.6 MB in the end (delta: -14.6 MB). Peak memory consumption was 88.5 MB. Max. memory is 7.1 GB. [2020-07-20 11:37:10,789 INFO L168 Benchmark]: TraceAbstraction took 19837.90 ms. Allocated memory was 233.8 MB in the beginning and 554.2 MB in the end (delta: 320.3 MB). Free memory was 182.6 MB in the beginning and 491.0 MB in the end (delta: -308.4 MB). Peak memory consumption was 398.0 MB. Max. memory is 7.1 GB. [2020-07-20 11:37:10,792 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 142.6 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 930.99 ms. Allocated memory was 142.6 MB in the beginning and 205.5 MB in the end (delta: 62.9 MB). Free memory was 98.9 MB in the beginning and 172.5 MB in the end (delta: -73.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.25 ms. Allocated memory is still 205.5 MB. Free memory was 172.5 MB in the beginning and 168.0 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1344.07 ms. Allocated memory was 205.5 MB in the beginning and 233.8 MB in the end (delta: 28.3 MB). Free memory was 168.0 MB in the beginning and 182.6 MB in the end (delta: -14.6 MB). Peak memory consumption was 88.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19837.90 ms. Allocated memory was 233.8 MB in the beginning and 554.2 MB in the end (delta: 320.3 MB). Free memory was 182.6 MB in the beginning and 491.0 MB in the end (delta: -308.4 MB). Peak memory consumption was 398.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 541]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((((((((((!(1 == \old(a19)) || ((a17 <= \old(a17) && a19 <= 0) && a28 <= 7)) || !(\old(a28) <= 7)) || (1 == a19 && a17 <= 7)) || (((1 == a19 && a17 <= \old(a17)) && a28 <= 7) && 1 == a25)) || (((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && 1 == a25)) || !(\old(a11) <= 0)) || (((((a17 <= \old(a17) && a28 <= 10) && 1 <= a19) && a25 <= 0) && a19 <= \old(a19)) && 9 <= a28)) || (((a17 <= \old(a17) && a28 <= 9) && a25 <= 0) && a19 <= 0)) || (((((a17 <= \old(a17) && a11 <= 0) && a28 <= 10) && a19 <= 0) && 9 <= a28) && 1 == a25)) || !(\old(a25) <= 0)) || (a28 <= 10 && a17 <= 7)) || !(\old(a17) <= 8)) || (((((a17 <= \old(a17) && a28 <= 10) && 1 <= a19) && a19 <= \old(a19)) && 9 <= a28) && 1 == a25)) || ((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a28 <= 7) && a25 == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.6s, OverallIterations: 11, TraceHistogramMax: 6, AutomataDifference: 10.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 925 SDtfs, 4512 SDslu, 656 SDs, 0 SdLazy, 7632 SolverSat, 1211 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3593 GetRequests, 3531 SyntacticMatches, 12 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5505occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 11 MinimizatonAttempts, 389 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 215 PreInvPairs, 299 NumberOfFragments, 840 HoareAnnotationTreeSize, 215 FomulaSimplifications, 3018 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4266 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 2085 NumberOfCodeBlocks, 2085 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 3561 ConstructedInterpolants, 0 QuantifiedInterpolants, 1358761 SizeOfPredicates, 13 NumberOfNonLiveVariables, 5166 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 18 InterpolantComputations, 5 PerfectInterpolantSequences, 2122/2295 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...