/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 17:25:18,142 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-20 17:25:18,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 17:25:18,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 17:25:18,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 17:25:18,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 17:25:18,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 17:25:18,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 17:25:18,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 17:25:18,177 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 17:25:18,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 17:25:18,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 17:25:18,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 17:25:18,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 17:25:18,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 17:25:18,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 17:25:18,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 17:25:18,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 17:25:18,195 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 17:25:18,220 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 17:25:18,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 17:25:18,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 17:25:18,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 17:25:18,224 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 17:25:18,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 17:25:18,224 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 17:25:18,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 17:25:18,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 17:25:18,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 17:25:18,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 17:25:18,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 17:25:18,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 17:25:18,227 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 17:25:18,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 17:25:18,227 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 17:25:18,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 17:25:18,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 17:25:18,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 17:25:18,228 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 17:25:18,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 17:25:18,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:25:18,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 17:25:18,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 17:25:18,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 17:25:18,230 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 17:25:18,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:25:18,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 17:25:18,230 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 17:25:18,230 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 17:25:18,524 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 17:25:18,539 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 17:25:18,543 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 17:25:18,544 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 17:25:18,545 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 17:25:18,546 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label05.c [2020-07-20 17:25:18,613 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b9da05ca/c46b77e13eca4681b6ccd2e9735f16b4/FLAG15669ce5c [2020-07-20 17:25:19,183 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 17:25:19,184 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label05.c [2020-07-20 17:25:19,196 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b9da05ca/c46b77e13eca4681b6ccd2e9735f16b4/FLAG15669ce5c [2020-07-20 17:25:19,506 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b9da05ca/c46b77e13eca4681b6ccd2e9735f16b4 [2020-07-20 17:25:19,517 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 17:25:19,520 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 17:25:19,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 17:25:19,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 17:25:19,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 17:25:19,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:25:19" (1/1) ... [2020-07-20 17:25:19,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ea1b09d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:25:19, skipping insertion in model container [2020-07-20 17:25:19,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:25:19" (1/1) ... [2020-07-20 17:25:19,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 17:25:19,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 17:25:20,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:25:20,095 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 17:25:20,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:25:20,251 INFO L208 MainTranslator]: Completed translation [2020-07-20 17:25:20,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:25:20 WrapperNode [2020-07-20 17:25:20,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 17:25:20,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 17:25:20,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 17:25:20,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 17:25:20,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:25:20" (1/1) ... [2020-07-20 17:25:20,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:25:20" (1/1) ... [2020-07-20 17:25:20,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:25:20" (1/1) ... [2020-07-20 17:25:20,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:25:20" (1/1) ... [2020-07-20 17:25:20,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:25:20" (1/1) ... [2020-07-20 17:25:20,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:25:20" (1/1) ... [2020-07-20 17:25:20,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:25:20" (1/1) ... [2020-07-20 17:25:20,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 17:25:20,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 17:25:20,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 17:25:20,365 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 17:25:20,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:25:20" (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 17:25:20,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 17:25:20,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 17:25:20,428 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 17:25:20,428 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 17:25:20,428 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 17:25:20,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 17:25:20,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 17:25:20,429 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 17:25:20,429 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 17:25:20,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 17:25:20,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 17:25:21,589 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 17:25:21,589 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 17:25:21,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:25:21 BoogieIcfgContainer [2020-07-20 17:25:21,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 17:25:21,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 17:25:21,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 17:25:21,606 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 17:25:21,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:25:19" (1/3) ... [2020-07-20 17:25:21,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d512f6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:25:21, skipping insertion in model container [2020-07-20 17:25:21,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:25:20" (2/3) ... [2020-07-20 17:25:21,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d512f6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:25:21, skipping insertion in model container [2020-07-20 17:25:21,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:25:21" (3/3) ... [2020-07-20 17:25:21,612 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label05.c [2020-07-20 17:25:21,623 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 17:25:21,635 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 17:25:21,649 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 17:25:21,679 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 17:25:21,679 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 17:25:21,679 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 17:25:21,680 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 17:25:21,680 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 17:25:21,680 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 17:25:21,680 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 17:25:21,681 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 17:25:21,701 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 17:25:21,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-20 17:25:21,715 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:25:21,717 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, 1, 1, 1] [2020-07-20 17:25:21,717 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:25:21,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:25:21,724 INFO L82 PathProgramCache]: Analyzing trace with hash -2092008314, now seen corresponding path program 1 times [2020-07-20 17:25:21,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:25:21,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381470514] [2020-07-20 17:25:21,733 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:25:21,970 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:25:21,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:25:21,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:25:22,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:25:22,164 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 17:25:22,164 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:25:22,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381470514] [2020-07-20 17:25:22,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:25:22,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:25:22,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426954836] [2020-07-20 17:25:22,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:25:22,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:25:22,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:25:22,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:25:22,199 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 17:25:23,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:25:23,200 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-20 17:25:23,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:25:23,202 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2020-07-20 17:25:23,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:25:23,220 INFO L225 Difference]: With dead ends: 615 [2020-07-20 17:25:23,220 INFO L226 Difference]: Without dead ends: 317 [2020-07-20 17:25:23,227 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 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 17:25:23,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-20 17:25:23,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-20 17:25:23,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-20 17:25:23,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-20 17:25:23,310 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 132 [2020-07-20 17:25:23,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:25:23,312 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-20 17:25:23,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:25:23,312 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-20 17:25:23,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-07-20 17:25:23,318 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:25:23,318 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:25:23,532 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:25:23,532 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:25:23,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:25:23,533 INFO L82 PathProgramCache]: Analyzing trace with hash 719175851, now seen corresponding path program 1 times [2020-07-20 17:25:23,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:25:23,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1045623637] [2020-07-20 17:25:23,535 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:25:23,658 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:25:23,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:25:23,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:25:23,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:25:23,743 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:25:23,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:25:23,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1045623637] [2020-07-20 17:25:23,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:25:23,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:25:23,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552773993] [2020-07-20 17:25:23,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:25:23,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:25:23,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:25:23,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:25:23,749 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 3 states. [2020-07-20 17:25:24,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:25:24,401 INFO L93 Difference]: Finished difference Result 919 states and 1406 transitions. [2020-07-20 17:25:24,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:25:24,405 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2020-07-20 17:25:24,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:25:24,418 INFO L225 Difference]: With dead ends: 919 [2020-07-20 17:25:24,419 INFO L226 Difference]: Without dead ends: 608 [2020-07-20 17:25:24,421 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 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 17:25:24,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-07-20 17:25:24,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 462. [2020-07-20 17:25:24,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-07-20 17:25:24,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 642 transitions. [2020-07-20 17:25:24,475 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 642 transitions. Word has length 147 [2020-07-20 17:25:24,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:25:24,476 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 642 transitions. [2020-07-20 17:25:24,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:25:24,476 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 642 transitions. [2020-07-20 17:25:24,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-20 17:25:24,481 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:25:24,481 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:25:24,695 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:25:24,696 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:25:24,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:25:24,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1033618530, now seen corresponding path program 1 times [2020-07-20 17:25:24,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:25:24,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1322793164] [2020-07-20 17:25:24,700 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:25:24,801 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:25:24,801 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:25:24,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:25:24,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:25:24,859 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:25:24,860 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:25:24,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1322793164] [2020-07-20 17:25:24,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:25:24,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:25:24,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028044130] [2020-07-20 17:25:24,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:25:24,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:25:24,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:25:24,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:25:24,874 INFO L87 Difference]: Start difference. First operand 462 states and 642 transitions. Second operand 3 states. [2020-07-20 17:25:25,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:25:25,527 INFO L93 Difference]: Finished difference Result 1365 states and 1931 transitions. [2020-07-20 17:25:25,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:25:25,528 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2020-07-20 17:25:25,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:25:25,534 INFO L225 Difference]: With dead ends: 1365 [2020-07-20 17:25:25,534 INFO L226 Difference]: Without dead ends: 909 [2020-07-20 17:25:25,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:25:25,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2020-07-20 17:25:25,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 760. [2020-07-20 17:25:25,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 760 states. [2020-07-20 17:25:25,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 1024 transitions. [2020-07-20 17:25:25,575 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 1024 transitions. Word has length 154 [2020-07-20 17:25:25,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:25:25,575 INFO L479 AbstractCegarLoop]: Abstraction has 760 states and 1024 transitions. [2020-07-20 17:25:25,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:25:25,576 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 1024 transitions. [2020-07-20 17:25:25,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-07-20 17:25:25,581 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:25:25,582 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:25:25,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:25:25,795 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:25:25,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:25:25,796 INFO L82 PathProgramCache]: Analyzing trace with hash 124353046, now seen corresponding path program 1 times [2020-07-20 17:25:25,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:25:25,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [463859768] [2020-07-20 17:25:25,798 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:25:25,932 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:25:25,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:25:25,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:25:25,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:25:25,996 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:25:25,996 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:25:25,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [463859768] [2020-07-20 17:25:25,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:25:25,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:25:25,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049684198] [2020-07-20 17:25:25,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:25:25,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:25:25,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:25:25,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:25:25,999 INFO L87 Difference]: Start difference. First operand 760 states and 1024 transitions. Second operand 3 states. [2020-07-20 17:25:26,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:25:26,687 INFO L93 Difference]: Finished difference Result 1951 states and 2739 transitions. [2020-07-20 17:25:26,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:25:26,687 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2020-07-20 17:25:26,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:25:26,695 INFO L225 Difference]: With dead ends: 1951 [2020-07-20 17:25:26,695 INFO L226 Difference]: Without dead ends: 1197 [2020-07-20 17:25:26,698 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 156 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 17:25:26,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2020-07-20 17:25:26,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 1050. [2020-07-20 17:25:26,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1050 states. [2020-07-20 17:25:26,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1363 transitions. [2020-07-20 17:25:26,744 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1363 transitions. Word has length 158 [2020-07-20 17:25:26,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:25:26,745 INFO L479 AbstractCegarLoop]: Abstraction has 1050 states and 1363 transitions. [2020-07-20 17:25:26,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:25:26,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1363 transitions. [2020-07-20 17:25:26,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-07-20 17:25:26,771 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:25:26,771 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:25:26,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:25:26,986 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:25:26,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:25:26,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1887045313, now seen corresponding path program 1 times [2020-07-20 17:25:26,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:25:26,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1136904544] [2020-07-20 17:25:26,988 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:25:27,103 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:25:27,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:25:27,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:25:27,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:25:27,168 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:25:27,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:25:27,260 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:25:27,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1136904544] [2020-07-20 17:25:27,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:25:27,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:25:27,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484566573] [2020-07-20 17:25:27,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:25:27,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:25:27,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:25:27,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:25:27,263 INFO L87 Difference]: Start difference. First operand 1050 states and 1363 transitions. Second operand 7 states. [2020-07-20 17:25:28,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:25:28,885 INFO L93 Difference]: Finished difference Result 2993 states and 4187 transitions. [2020-07-20 17:25:28,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:25:28,888 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 171 [2020-07-20 17:25:28,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:25:28,899 INFO L225 Difference]: With dead ends: 2993 [2020-07-20 17:25:28,900 INFO L226 Difference]: Without dead ends: 1949 [2020-07-20 17:25:28,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 337 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 17:25:28,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1949 states. [2020-07-20 17:25:28,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1949 to 1948. [2020-07-20 17:25:28,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1948 states. [2020-07-20 17:25:28,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1948 states to 1948 states and 2579 transitions. [2020-07-20 17:25:28,977 INFO L78 Accepts]: Start accepts. Automaton has 1948 states and 2579 transitions. Word has length 171 [2020-07-20 17:25:28,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:25:28,978 INFO L479 AbstractCegarLoop]: Abstraction has 1948 states and 2579 transitions. [2020-07-20 17:25:28,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:25:28,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1948 states and 2579 transitions. [2020-07-20 17:25:28,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-07-20 17:25:28,986 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:25:28,987 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:25:29,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:25:29,201 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:25:29,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:25:29,201 INFO L82 PathProgramCache]: Analyzing trace with hash 2147024105, now seen corresponding path program 1 times [2020-07-20 17:25:29,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:25:29,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1324737393] [2020-07-20 17:25:29,203 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:25:29,316 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:25:29,317 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:25:29,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:25:29,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:25:29,389 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:25:29,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:25:29,467 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:25:29,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1324737393] [2020-07-20 17:25:29,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:25:29,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:25:29,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807513297] [2020-07-20 17:25:29,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:25:29,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:25:29,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:25:29,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:25:29,469 INFO L87 Difference]: Start difference. First operand 1948 states and 2579 transitions. Second operand 7 states. [2020-07-20 17:25:30,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:25:30,494 INFO L93 Difference]: Finished difference Result 4799 states and 6656 transitions. [2020-07-20 17:25:30,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:25:30,495 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 183 [2020-07-20 17:25:30,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:25:30,514 INFO L225 Difference]: With dead ends: 4799 [2020-07-20 17:25:30,514 INFO L226 Difference]: Without dead ends: 2861 [2020-07-20 17:25:30,527 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 360 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 17:25:30,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2861 states. [2020-07-20 17:25:30,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2861 to 2420. [2020-07-20 17:25:30,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2420 states. [2020-07-20 17:25:30,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 3230 transitions. [2020-07-20 17:25:30,680 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 3230 transitions. Word has length 183 [2020-07-20 17:25:30,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:25:30,680 INFO L479 AbstractCegarLoop]: Abstraction has 2420 states and 3230 transitions. [2020-07-20 17:25:30,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:25:30,680 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 3230 transitions. [2020-07-20 17:25:30,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-07-20 17:25:30,689 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:25:30,690 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:25:30,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:25:30,903 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:25:30,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:25:30,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1956202428, now seen corresponding path program 1 times [2020-07-20 17:25:30,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:25:30,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1860774638] [2020-07-20 17:25:30,905 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:25:31,036 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:25:31,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:25:31,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:25:31,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:25:31,087 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-07-20 17:25:31,088 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:25:31,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1860774638] [2020-07-20 17:25:31,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:25:31,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:25:31,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85645304] [2020-07-20 17:25:31,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:25:31,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:25:31,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:25:31,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:25:31,090 INFO L87 Difference]: Start difference. First operand 2420 states and 3230 transitions. Second operand 3 states. [2020-07-20 17:25:31,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:25:31,667 INFO L93 Difference]: Finished difference Result 4258 states and 5631 transitions. [2020-07-20 17:25:31,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:25:31,668 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2020-07-20 17:25:31,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:25:31,681 INFO L225 Difference]: With dead ends: 4258 [2020-07-20 17:25:31,681 INFO L226 Difference]: Without dead ends: 2420 [2020-07-20 17:25:31,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 189 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 17:25:31,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2420 states. [2020-07-20 17:25:31,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2420 to 2274. [2020-07-20 17:25:31,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2274 states. [2020-07-20 17:25:31,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 2913 transitions. [2020-07-20 17:25:31,760 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 2913 transitions. Word has length 191 [2020-07-20 17:25:31,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:25:31,761 INFO L479 AbstractCegarLoop]: Abstraction has 2274 states and 2913 transitions. [2020-07-20 17:25:31,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:25:31,761 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 2913 transitions. [2020-07-20 17:25:31,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-07-20 17:25:31,769 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:25:31,770 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:25:31,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:25:31,983 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:25:31,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:25:31,984 INFO L82 PathProgramCache]: Analyzing trace with hash -454339638, now seen corresponding path program 1 times [2020-07-20 17:25:31,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:25:31,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [468723114] [2020-07-20 17:25:31,985 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:25:32,099 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 17:25:32,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:25:32,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 17:25:32,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:25:32,137 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:25:32,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:25:32,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [468723114] [2020-07-20 17:25:32,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:25:32,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:25:32,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421712656] [2020-07-20 17:25:32,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:25:32,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:25:32,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:25:32,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:25:32,140 INFO L87 Difference]: Start difference. First operand 2274 states and 2913 transitions. Second operand 3 states. [2020-07-20 17:25:32,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:25:32,777 INFO L93 Difference]: Finished difference Result 6000 states and 7818 transitions. [2020-07-20 17:25:32,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:25:32,778 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2020-07-20 17:25:32,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:25:32,778 INFO L225 Difference]: With dead ends: 6000 [2020-07-20 17:25:32,778 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 17:25:32,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 188 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 17:25:32,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 17:25:32,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 17:25:32,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 17:25:32,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 17:25:32,795 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 190 [2020-07-20 17:25:32,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:25:32,795 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 17:25:32,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:25:32,795 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 17:25:32,796 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 17:25:33,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:25:33,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 17:25:33,728 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 43 [2020-07-20 17:25:33,854 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:25:33,854 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a28~0 |old(~a28~0)|) (<= |old(~a28~0)| ~a28~0)) [2020-07-20 17:25:33,854 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:25:33,855 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,855 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,855 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,855 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,855 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,855 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 17:25:33,855 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 17:25:33,856 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 17:25:33,856 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 17:25:33,856 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 17:25:33,856 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 17:25:33,856 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 17:25:33,856 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 17:25:33,856 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 17:25:33,856 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 17:25:33,857 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 17:25:33,857 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 17:25:33,857 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 17:25:33,857 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,857 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,857 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,857 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,857 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 17:25:33,858 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,858 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 17:25:33,858 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 17:25:33,858 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 17:25:33,858 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 17:25:33,858 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 17:25:33,858 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 17:25:33,859 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 17:25:33,859 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 17:25:33,859 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 17:25:33,859 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 17:25:33,859 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 17:25:33,859 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 17:25:33,860 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 17:25:33,860 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 17:25:33,860 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 17:25:33,860 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,862 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,862 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,863 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,863 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,863 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 550) no Hoare annotation was computed. [2020-07-20 17:25:33,863 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 17:25:33,864 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 17:25:33,864 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 17:25:33,864 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 17:25:33,864 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 17:25:33,864 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 17:25:33,864 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 17:25:33,864 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 17:25:33,864 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 17:25:33,864 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 17:25:33,865 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 17:25:33,865 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,865 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,865 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,865 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,865 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,865 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 17:25:33,865 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 17:25:33,865 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 17:25:33,866 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 17:25:33,866 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 17:25:33,866 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 17:25:33,866 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 17:25:33,866 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 17:25:33,866 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 17:25:33,866 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 17:25:33,866 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 17:25:33,867 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 17:25:33,868 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 17:25:33,868 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,868 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,869 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,869 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,869 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,869 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 17:25:33,869 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 17:25:33,869 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 17:25:33,869 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 17:25:33,869 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 17:25:33,870 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 17:25:33,870 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 17:25:33,870 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 17:25:33,870 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 17:25:33,870 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 17:25:33,870 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 17:25:33,870 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 17:25:33,870 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 17:25:33,870 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 17:25:33,871 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 17:25:33,871 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 17:25:33,871 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,871 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,871 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,871 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,871 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 17:25:33,871 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,872 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 17:25:33,872 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,872 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 17:25:33,873 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 17:25:33,873 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 17:25:33,873 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,873 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,873 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 17:25:33,873 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 17:25:33,873 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 17:25:33,874 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 17:25:33,875 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 17:25:33,875 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 17:25:33,875 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 17:25:33,875 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 17:25:33,875 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 17:25:33,875 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 17:25:33,875 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 17:25:33,876 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,876 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,876 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,876 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,876 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,876 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,876 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 17:25:33,876 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 17:25:33,876 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 17:25:33,877 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 17:25:33,877 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 17:25:33,877 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 17:25:33,877 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 17:25:33,877 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 17:25:33,877 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 17:25:33,877 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 17:25:33,877 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 17:25:33,877 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,878 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,878 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,878 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,878 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,878 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,878 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 17:25:33,878 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 17:25:33,878 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 17:25:33,878 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 17:25:33,878 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 17:25:33,879 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 17:25:33,879 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 17:25:33,879 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 17:25:33,879 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 17:25:33,879 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 17:25:33,879 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 17:25:33,879 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 17:25:33,879 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 17:25:33,879 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 17:25:33,880 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,880 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,880 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,880 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse3 (not (<= |old(~a25~0)| 0))) (.cse6 (not (<= 8 |old(~a17~0)|))) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse1 (= 1 ~a19~0)) (.cse2 (not (<= |old(~a28~0)| 9))) (.cse4 (<= ~a28~0 |old(~a28~0)|)) (.cse5 (<= |old(~a28~0)| ~a28~0))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse3) (or .cse3 (and .cse4 (<= ~a25~0 0) .cse5)) (or .cse0 .cse1 .cse6) (or (and .cse4 (<= 8 ~a17~0) .cse5) .cse6 (not (<= 10 |old(~a28~0)|))) (or .cse0 (and .cse1 .cse4 .cse5) (not (<= 11 |old(~a28~0)|))) (or .cse2 (and .cse4 .cse5)))) [2020-07-20 17:25:33,880 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,880 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,880 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,880 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 17:25:33,881 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 17:25:33,881 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 17:25:33,881 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 17:25:33,881 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 17:25:33,881 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 17:25:33,881 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 17:25:33,881 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 17:25:33,881 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 17:25:33,881 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 17:25:33,882 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 17:25:33,882 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 17:25:33,882 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 17:25:33,882 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,882 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,882 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,882 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,882 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,882 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,883 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 17:25:33,883 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 17:25:33,883 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 17:25:33,884 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 17:25:33,884 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 17:25:33,884 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 17:25:33,884 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 17:25:33,884 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 17:25:33,884 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 17:25:33,884 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 17:25:33,885 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 17:25:33,885 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 17:25:33,885 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 17:25:33,885 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 17:25:33,885 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 17:25:33,885 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 17:25:33,885 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,885 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,886 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,886 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,886 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:25:33,886 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 17:25:33,886 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 17:25:33,886 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 17:25:33,886 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 17:25:33,886 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 17:25:33,886 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 17:25:33,887 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 17:25:33,887 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 17:25:33,887 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 17:25:33,887 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 17:25:33,887 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 17:25:33,887 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 17:25:33,887 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 17:25:33,887 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 17:25:33,887 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 17:25:33,888 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 17:25:33,888 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 17:25:33,888 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 17:25:33,888 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 17:25:33,888 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:25:33,888 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= 8 ~a17~0) (<= ~a25~0 0) (<= ~a28~0 7)) [2020-07-20 17:25:33,888 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 17:25:33,888 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:25:33,889 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and (= 1 ~a19~0) (<= ~a28~0 |old(~a28~0)|) (<= 8 ~a17~0) (<= ~a25~0 0) (<= |old(~a28~0)| ~a28~0))) [2020-07-20 17:25:33,889 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (<= 8 ~a17~0) (<= ~a28~0 9) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (<= ~a25~0 0) (and (= 1 ~a19~0) (<= 11 ~a28~0))) [2020-07-20 17:25:33,889 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 17:25:33,889 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 17:25:33,889 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (<= 8 ~a17~0) (<= ~a28~0 9) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (<= ~a25~0 0) (and (= 1 ~a19~0) (<= 11 ~a28~0))) [2020-07-20 17:25:33,889 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 17:25:33,889 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 17:25:33,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:25:33 BoogieIcfgContainer [2020-07-20 17:25:33,920 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 17:25:33,922 INFO L168 Benchmark]: Toolchain (without parser) took 14403.87 ms. Allocated memory was 138.4 MB in the beginning and 422.6 MB in the end (delta: 284.2 MB). Free memory was 101.9 MB in the beginning and 105.7 MB in the end (delta: -3.8 MB). Peak memory consumption was 280.4 MB. Max. memory is 7.1 GB. [2020-07-20 17:25:33,926 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 17:25:33,930 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.43 ms. Allocated memory was 138.4 MB in the beginning and 205.0 MB in the end (delta: 66.6 MB). Free memory was 101.5 MB in the beginning and 172.1 MB in the end (delta: -70.6 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. [2020-07-20 17:25:33,931 INFO L168 Benchmark]: Boogie Preprocessor took 110.35 ms. Allocated memory is still 205.0 MB. Free memory was 172.1 MB in the beginning and 167.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-20 17:25:33,932 INFO L168 Benchmark]: RCFGBuilder took 1236.60 ms. Allocated memory was 205.0 MB in the beginning and 237.5 MB in the end (delta: 32.5 MB). Free memory was 167.1 MB in the beginning and 181.6 MB in the end (delta: -14.6 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. [2020-07-20 17:25:33,935 INFO L168 Benchmark]: TraceAbstraction took 12317.01 ms. Allocated memory was 237.5 MB in the beginning and 422.6 MB in the end (delta: 185.1 MB). Free memory was 181.6 MB in the beginning and 105.7 MB in the end (delta: 76.0 MB). Peak memory consumption was 261.0 MB. Max. memory is 7.1 GB. [2020-07-20 17:25:33,946 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 731.43 ms. Allocated memory was 138.4 MB in the beginning and 205.0 MB in the end (delta: 66.6 MB). Free memory was 101.5 MB in the beginning and 172.1 MB in the end (delta: -70.6 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.35 ms. Allocated memory is still 205.0 MB. Free memory was 172.1 MB in the beginning and 167.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1236.60 ms. Allocated memory was 205.0 MB in the beginning and 237.5 MB in the end (delta: 32.5 MB). Free memory was 167.1 MB in the beginning and 181.6 MB in the end (delta: -14.6 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12317.01 ms. Allocated memory was 237.5 MB in the beginning and 422.6 MB in the end (delta: 185.1 MB). Free memory was 181.6 MB in the beginning and 105.7 MB in the end (delta: 76.0 MB). Peak memory consumption was 261.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 550]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((!(1 == \old(a19)) || !(\old(a28) <= 7)) || 8 <= a17) || a28 <= 9) || !(8 <= \old(a17))) || !(\old(a25) <= 0)) || a25 <= 0) || (1 == a19 && 11 <= a28) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.3s, OverallIterations: 8, TraceHistogramMax: 4, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 811 SDtfs, 1598 SDslu, 295 SDs, 0 SdLazy, 4359 SolverSat, 923 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1679 GetRequests, 1657 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2420occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 1030 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 90 PreInvPairs, 142 NumberOfFragments, 222 HoareAnnotationTreeSize, 90 FomulaSimplifications, 1484 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 827 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 1326 NumberOfCodeBlocks, 1280 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 1670 ConstructedInterpolants, 0 QuantifiedInterpolants, 564348 SizeOfPredicates, 13 NumberOfNonLiveVariables, 2921 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 390/398 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...