/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 13:45:12,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 13:45:12,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 13:45:12,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 13:45:12,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 13:45:12,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 13:45:12,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 13:45:12,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 13:45:12,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 13:45:12,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 13:45:12,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 13:45:12,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 13:45:12,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 13:45:12,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 13:45:12,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 13:45:12,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 13:45:12,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 13:45:12,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 13:45:12,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 13:45:12,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 13:45:12,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 13:45:12,113 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 13:45:12,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 13:45:12,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 13:45:12,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 13:45:12,132 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 13:45:12,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 13:45:12,135 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 13:45:12,136 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 13:45:12,163 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 13:45:12,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 13:45:12,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 13:45:12,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 13:45:12,167 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 13:45:12,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 13:45:12,168 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 13:45:12,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 13:45:12,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 13:45:12,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 13:45:12,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 13:45:12,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 13:45:12,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 13:45:12,171 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 13:45:12,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 13:45:12,171 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 13:45:12,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 13:45:12,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 13:45:12,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 13:45:12,173 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 13:45:12,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 13:45:12,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 13:45:12,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 13:45:12,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 13:45:12,177 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 13:45:12,177 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 13:45:12,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:45:12,178 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 13:45:12,178 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 13:45:12,178 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 13:45:12,503 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 13:45:12,522 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 13:45:12,525 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 13:45:12,526 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 13:45:12,527 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 13:45:12,528 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label05.c [2020-07-21 13:45:12,592 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/847f1bca4/34486318132f4eea8954267068068732/FLAG4b5c5bb4c [2020-07-21 13:45:13,161 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 13:45:13,162 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label05.c [2020-07-21 13:45:13,174 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/847f1bca4/34486318132f4eea8954267068068732/FLAG4b5c5bb4c [2020-07-21 13:45:13,400 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/847f1bca4/34486318132f4eea8954267068068732 [2020-07-21 13:45:13,412 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 13:45:13,416 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 13:45:13,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 13:45:13,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 13:45:13,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 13:45:13,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:45:13" (1/1) ... [2020-07-21 13:45:13,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fd8fd09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:45:13, skipping insertion in model container [2020-07-21 13:45:13,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:45:13" (1/1) ... [2020-07-21 13:45:13,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 13:45:13,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 13:45:14,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:45:14,015 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 13:45:14,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:45:14,234 INFO L208 MainTranslator]: Completed translation [2020-07-21 13:45:14,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:45:14 WrapperNode [2020-07-21 13:45:14,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 13:45:14,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 13:45:14,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 13:45:14,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 13:45:14,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:45:14" (1/1) ... [2020-07-21 13:45:14,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:45:14" (1/1) ... [2020-07-21 13:45:14,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:45:14" (1/1) ... [2020-07-21 13:45:14,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:45:14" (1/1) ... [2020-07-21 13:45:14,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:45:14" (1/1) ... [2020-07-21 13:45:14,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:45:14" (1/1) ... [2020-07-21 13:45:14,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:45:14" (1/1) ... [2020-07-21 13:45:14,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 13:45:14,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 13:45:14,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 13:45:14,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 13:45:14,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:45:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 13:45:14,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 13:45:14,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 13:45:14,445 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 13:45:14,445 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 13:45:14,445 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 13:45:14,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 13:45:14,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 13:45:14,446 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 13:45:14,447 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 13:45:14,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 13:45:14,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 13:45:15,738 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 13:45:15,738 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 13:45:15,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:45:15 BoogieIcfgContainer [2020-07-21 13:45:15,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 13:45:15,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 13:45:15,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 13:45:15,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 13:45:15,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:45:13" (1/3) ... [2020-07-21 13:45:15,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c8d49db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:45:15, skipping insertion in model container [2020-07-21 13:45:15,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:45:14" (2/3) ... [2020-07-21 13:45:15,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c8d49db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:45:15, skipping insertion in model container [2020-07-21 13:45:15,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:45:15" (3/3) ... [2020-07-21 13:45:15,754 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label05.c [2020-07-21 13:45:15,766 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 13:45:15,775 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 13:45:15,792 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 13:45:15,822 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 13:45:15,823 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 13:45:15,823 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 13:45:15,823 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 13:45:15,823 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 13:45:15,824 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 13:45:15,824 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 13:45:15,824 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 13:45:15,852 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 13:45:15,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-07-21 13:45:15,864 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:45:15,865 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:45:15,866 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:45:15,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:45:15,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1904695938, now seen corresponding path program 1 times [2020-07-21 13:45:15,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:45:15,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1027857508] [2020-07-21 13:45:15,884 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:45:16,101 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:45:16,102 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:45:16,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:45:16,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:45:16,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:45:16,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:45:16,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1027857508] [2020-07-21 13:45:16,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:45:16,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:45:16,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836572477] [2020-07-21 13:45:16,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:45:16,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:45:16,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:45:16,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:45:16,311 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-21 13:45:17,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:45:17,305 INFO L93 Difference]: Finished difference Result 572 states and 963 transitions. [2020-07-21 13:45:17,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:45:17,307 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 100 [2020-07-21 13:45:17,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:45:17,324 INFO L225 Difference]: With dead ends: 572 [2020-07-21 13:45:17,325 INFO L226 Difference]: Without dead ends: 278 [2020-07-21 13:45:17,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:45:17,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-21 13:45:17,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-21 13:45:17,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-21 13:45:17,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2020-07-21 13:45:17,403 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 100 [2020-07-21 13:45:17,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:45:17,404 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2020-07-21 13:45:17,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:45:17,405 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2020-07-21 13:45:17,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-07-21 13:45:17,411 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:45:17,411 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:45:17,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:45:17,626 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:45:17,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:45:17,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1236531093, now seen corresponding path program 1 times [2020-07-21 13:45:17,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:45:17,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1158991530] [2020-07-21 13:45:17,628 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:45:17,731 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:45:17,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:45:17,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:45:17,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:45:17,799 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:45:17,799 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:45:17,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1158991530] [2020-07-21 13:45:17,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:45:17,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:45:17,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000647468] [2020-07-21 13:45:17,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:45:17,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:45:17,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:45:17,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:45:17,804 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 5 states. [2020-07-21 13:45:18,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:45:18,772 INFO L93 Difference]: Finished difference Result 842 states and 1218 transitions. [2020-07-21 13:45:18,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:45:18,775 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 110 [2020-07-21 13:45:18,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:45:18,783 INFO L225 Difference]: With dead ends: 842 [2020-07-21 13:45:18,784 INFO L226 Difference]: Without dead ends: 570 [2020-07-21 13:45:18,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 13:45:18,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-07-21 13:45:18,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 556. [2020-07-21 13:45:18,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-07-21 13:45:18,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 785 transitions. [2020-07-21 13:45:18,876 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 785 transitions. Word has length 110 [2020-07-21 13:45:18,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:45:18,876 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 785 transitions. [2020-07-21 13:45:18,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:45:18,877 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 785 transitions. [2020-07-21 13:45:18,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-07-21 13:45:18,887 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:45:18,887 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:45:19,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:45:19,103 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:45:19,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:45:19,104 INFO L82 PathProgramCache]: Analyzing trace with hash 235879383, now seen corresponding path program 1 times [2020-07-21 13:45:19,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:45:19,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934441108] [2020-07-21 13:45:19,106 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:45:19,232 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:45:19,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:45:19,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 13:45:19,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:45:19,264 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:45:19,264 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:45:19,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934441108] [2020-07-21 13:45:19,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:45:19,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:45:19,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815525290] [2020-07-21 13:45:19,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:45:19,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:45:19,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:45:19,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:45:19,267 INFO L87 Difference]: Start difference. First operand 556 states and 785 transitions. Second operand 3 states. [2020-07-21 13:45:19,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:45:19,851 INFO L93 Difference]: Finished difference Result 1652 states and 2385 transitions. [2020-07-21 13:45:19,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:45:19,855 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-07-21 13:45:19,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:45:19,868 INFO L225 Difference]: With dead ends: 1652 [2020-07-21 13:45:19,868 INFO L226 Difference]: Without dead ends: 1102 [2020-07-21 13:45:19,870 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:45:19,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2020-07-21 13:45:19,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1102. [2020-07-21 13:45:19,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1102 states. [2020-07-21 13:45:19,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1504 transitions. [2020-07-21 13:45:19,914 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1504 transitions. Word has length 111 [2020-07-21 13:45:19,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:45:19,915 INFO L479 AbstractCegarLoop]: Abstraction has 1102 states and 1504 transitions. [2020-07-21 13:45:19,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:45:19,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1504 transitions. [2020-07-21 13:45:19,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-07-21 13:45:19,919 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:45:19,920 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:45:20,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:45:20,133 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:45:20,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:45:20,134 INFO L82 PathProgramCache]: Analyzing trace with hash -2022552526, now seen corresponding path program 1 times [2020-07-21 13:45:20,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:45:20,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [134873082] [2020-07-21 13:45:20,136 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:45:20,260 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:45:20,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:45:20,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:45:20,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:45:20,337 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:45:20,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:45:20,454 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:45:20,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [134873082] [2020-07-21 13:45:20,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:45:20,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 13:45:20,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911430106] [2020-07-21 13:45:20,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 13:45:20,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:45:20,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 13:45:20,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 13:45:20,460 INFO L87 Difference]: Start difference. First operand 1102 states and 1504 transitions. Second operand 8 states. [2020-07-21 13:45:22,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:45:22,564 INFO L93 Difference]: Finished difference Result 4220 states and 6124 transitions. [2020-07-21 13:45:22,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 13:45:22,565 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 119 [2020-07-21 13:45:22,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:45:22,593 INFO L225 Difference]: With dead ends: 4220 [2020-07-21 13:45:22,593 INFO L226 Difference]: Without dead ends: 3124 [2020-07-21 13:45:22,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-07-21 13:45:22,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3124 states. [2020-07-21 13:45:22,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3124 to 2349. [2020-07-21 13:45:22,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2349 states. [2020-07-21 13:45:22,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2349 states to 2349 states and 3071 transitions. [2020-07-21 13:45:22,740 INFO L78 Accepts]: Start accepts. Automaton has 2349 states and 3071 transitions. Word has length 119 [2020-07-21 13:45:22,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:45:22,741 INFO L479 AbstractCegarLoop]: Abstraction has 2349 states and 3071 transitions. [2020-07-21 13:45:22,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 13:45:22,741 INFO L276 IsEmpty]: Start isEmpty. Operand 2349 states and 3071 transitions. [2020-07-21 13:45:22,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-07-21 13:45:22,748 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:45:22,749 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:45:22,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:45:22,962 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:45:22,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:45:22,962 INFO L82 PathProgramCache]: Analyzing trace with hash 308691738, now seen corresponding path program 1 times [2020-07-21 13:45:22,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:45:22,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [253178186] [2020-07-21 13:45:22,963 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:45:23,085 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:45:23,085 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:45:23,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:45:23,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:45:23,173 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:45:23,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:45:23,246 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:45:23,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [253178186] [2020-07-21 13:45:23,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:45:23,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:45:23,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641848007] [2020-07-21 13:45:23,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:45:23,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:45:23,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:45:23,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:45:23,250 INFO L87 Difference]: Start difference. First operand 2349 states and 3071 transitions. Second operand 7 states. [2020-07-21 13:45:24,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:45:24,933 INFO L93 Difference]: Finished difference Result 7590 states and 10616 transitions. [2020-07-21 13:45:24,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 13:45:24,934 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 131 [2020-07-21 13:45:24,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:45:24,970 INFO L225 Difference]: With dead ends: 7590 [2020-07-21 13:45:24,970 INFO L226 Difference]: Without dead ends: 5251 [2020-07-21 13:45:24,979 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 257 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:45:24,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5251 states. [2020-07-21 13:45:25,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5251 to 4567. [2020-07-21 13:45:25,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4567 states. [2020-07-21 13:45:25,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4567 states to 4567 states and 5929 transitions. [2020-07-21 13:45:25,146 INFO L78 Accepts]: Start accepts. Automaton has 4567 states and 5929 transitions. Word has length 131 [2020-07-21 13:45:25,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:45:25,147 INFO L479 AbstractCegarLoop]: Abstraction has 4567 states and 5929 transitions. [2020-07-21 13:45:25,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:45:25,152 INFO L276 IsEmpty]: Start isEmpty. Operand 4567 states and 5929 transitions. [2020-07-21 13:45:25,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-07-21 13:45:25,168 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:45:25,168 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:45:25,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:45:25,382 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:45:25,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:45:25,382 INFO L82 PathProgramCache]: Analyzing trace with hash -720996718, now seen corresponding path program 1 times [2020-07-21 13:45:25,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:45:25,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [254433895] [2020-07-21 13:45:25,383 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:45:25,507 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:45:25,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:45:25,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:45:25,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:45:25,537 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 13:45:25,538 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:45:25,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [254433895] [2020-07-21 13:45:25,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:45:25,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:45:25,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217097932] [2020-07-21 13:45:25,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:45:25,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:45:25,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:45:25,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:45:25,541 INFO L87 Difference]: Start difference. First operand 4567 states and 5929 transitions. Second operand 3 states. [2020-07-21 13:45:26,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:45:26,214 INFO L93 Difference]: Finished difference Result 11993 states and 15911 transitions. [2020-07-21 13:45:26,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:45:26,215 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2020-07-21 13:45:26,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:45:26,248 INFO L225 Difference]: With dead ends: 11993 [2020-07-21 13:45:26,249 INFO L226 Difference]: Without dead ends: 7436 [2020-07-21 13:45:26,267 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:45:26,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7436 states. [2020-07-21 13:45:26,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7436 to 5665. [2020-07-21 13:45:26,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5665 states. [2020-07-21 13:45:26,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5665 states to 5665 states and 7367 transitions. [2020-07-21 13:45:26,439 INFO L78 Accepts]: Start accepts. Automaton has 5665 states and 7367 transitions. Word has length 135 [2020-07-21 13:45:26,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:45:26,441 INFO L479 AbstractCegarLoop]: Abstraction has 5665 states and 7367 transitions. [2020-07-21 13:45:26,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:45:26,441 INFO L276 IsEmpty]: Start isEmpty. Operand 5665 states and 7367 transitions. [2020-07-21 13:45:26,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-21 13:45:26,456 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:45:26,456 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:45:26,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:45:26,671 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:45:26,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:45:26,672 INFO L82 PathProgramCache]: Analyzing trace with hash -676972618, now seen corresponding path program 1 times [2020-07-21 13:45:26,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:45:26,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [700716487] [2020-07-21 13:45:26,673 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:45:26,796 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:45:26,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:45:26,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 13:45:26,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:45:26,849 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:45:26,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:45:26,933 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:45:26,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [700716487] [2020-07-21 13:45:26,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:45:26,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:45:26,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053799277] [2020-07-21 13:45:26,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:45:26,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:45:26,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:45:26,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:45:26,937 INFO L87 Difference]: Start difference. First operand 5665 states and 7367 transitions. Second operand 7 states. [2020-07-21 13:45:27,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:45:27,755 INFO L93 Difference]: Finished difference Result 10413 states and 13551 transitions. [2020-07-21 13:45:27,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:45:27,755 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2020-07-21 13:45:27,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:45:27,781 INFO L225 Difference]: With dead ends: 10413 [2020-07-21 13:45:27,782 INFO L226 Difference]: Without dead ends: 6245 [2020-07-21 13:45:27,794 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:45:27,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6245 states. [2020-07-21 13:45:27,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6245 to 5669. [2020-07-21 13:45:27,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5669 states. [2020-07-21 13:45:27,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5669 states to 5669 states and 7057 transitions. [2020-07-21 13:45:27,922 INFO L78 Accepts]: Start accepts. Automaton has 5669 states and 7057 transitions. Word has length 142 [2020-07-21 13:45:27,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:45:27,922 INFO L479 AbstractCegarLoop]: Abstraction has 5669 states and 7057 transitions. [2020-07-21 13:45:27,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:45:27,922 INFO L276 IsEmpty]: Start isEmpty. Operand 5669 states and 7057 transitions. [2020-07-21 13:45:27,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-21 13:45:27,935 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:45:27,935 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:45:28,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:45:28,151 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:45:28,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:45:28,152 INFO L82 PathProgramCache]: Analyzing trace with hash 809347390, now seen corresponding path program 1 times [2020-07-21 13:45:28,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:45:28,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [166830909] [2020-07-21 13:45:28,153 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:45:28,257 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:45:28,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:45:28,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:45:28,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:45:28,302 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 13:45:28,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:45:28,459 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 49 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 13:45:28,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [166830909] [2020-07-21 13:45:28,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:45:28,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-07-21 13:45:28,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869671022] [2020-07-21 13:45:28,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:45:28,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:45:28,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:45:28,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:45:28,462 INFO L87 Difference]: Start difference. First operand 5669 states and 7057 transitions. Second operand 5 states. [2020-07-21 13:45:29,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:45:29,036 INFO L93 Difference]: Finished difference Result 5677 states and 7068 transitions. [2020-07-21 13:45:29,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 13:45:29,037 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2020-07-21 13:45:29,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:45:29,058 INFO L225 Difference]: With dead ends: 5677 [2020-07-21 13:45:29,058 INFO L226 Difference]: Without dead ends: 5675 [2020-07-21 13:45:29,061 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 286 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:45:29,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5675 states. [2020-07-21 13:45:29,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5675 to 5387. [2020-07-21 13:45:29,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5387 states. [2020-07-21 13:45:29,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5387 states to 5387 states and 6705 transitions. [2020-07-21 13:45:29,165 INFO L78 Accepts]: Start accepts. Automaton has 5387 states and 6705 transitions. Word has length 146 [2020-07-21 13:45:29,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:45:29,165 INFO L479 AbstractCegarLoop]: Abstraction has 5387 states and 6705 transitions. [2020-07-21 13:45:29,166 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:45:29,166 INFO L276 IsEmpty]: Start isEmpty. Operand 5387 states and 6705 transitions. [2020-07-21 13:45:29,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-21 13:45:29,178 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:45:29,178 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:45:29,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:45:29,393 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:45:29,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:45:29,393 INFO L82 PathProgramCache]: Analyzing trace with hash -742331683, now seen corresponding path program 1 times [2020-07-21 13:45:29,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:45:29,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [857977526] [2020-07-21 13:45:29,394 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:45:29,517 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:45:29,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:45:29,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:45:29,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:45:29,550 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 13:45:29,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:45:29,606 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 13:45:29,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [857977526] [2020-07-21 13:45:29,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:45:29,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:45:29,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524820506] [2020-07-21 13:45:29,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:45:29,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:45:29,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:45:29,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:45:29,609 INFO L87 Difference]: Start difference. First operand 5387 states and 6705 transitions. Second operand 6 states. [2020-07-21 13:45:30,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:45:30,425 INFO L93 Difference]: Finished difference Result 9692 states and 12174 transitions. [2020-07-21 13:45:30,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:45:30,426 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 151 [2020-07-21 13:45:30,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:45:30,450 INFO L225 Difference]: With dead ends: 9692 [2020-07-21 13:45:30,450 INFO L226 Difference]: Without dead ends: 6096 [2020-07-21 13:45:30,459 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 298 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:45:30,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6096 states. [2020-07-21 13:45:30,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6096 to 5808. [2020-07-21 13:45:30,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5808 states. [2020-07-21 13:45:30,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5808 states to 5808 states and 7020 transitions. [2020-07-21 13:45:30,560 INFO L78 Accepts]: Start accepts. Automaton has 5808 states and 7020 transitions. Word has length 151 [2020-07-21 13:45:30,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:45:30,560 INFO L479 AbstractCegarLoop]: Abstraction has 5808 states and 7020 transitions. [2020-07-21 13:45:30,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:45:30,561 INFO L276 IsEmpty]: Start isEmpty. Operand 5808 states and 7020 transitions. [2020-07-21 13:45:30,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-21 13:45:30,573 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:45:30,574 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:45:30,788 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:45:30,789 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:45:30,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:45:30,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1695161737, now seen corresponding path program 1 times [2020-07-21 13:45:30,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:45:30,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1585807533] [2020-07-21 13:45:30,790 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:45:30,908 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:45:30,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:45:30,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:45:30,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:45:30,939 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-21 13:45:30,940 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:45:30,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1585807533] [2020-07-21 13:45:30,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:45:30,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:45:30,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062256787] [2020-07-21 13:45:30,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:45:30,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:45:30,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:45:30,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:45:30,942 INFO L87 Difference]: Start difference. First operand 5808 states and 7020 transitions. Second operand 3 states. [2020-07-21 13:45:31,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:45:31,445 INFO L93 Difference]: Finished difference Result 5810 states and 7021 transitions. [2020-07-21 13:45:31,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:45:31,446 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2020-07-21 13:45:31,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:45:31,461 INFO L225 Difference]: With dead ends: 5810 [2020-07-21 13:45:31,461 INFO L226 Difference]: Without dead ends: 5808 [2020-07-21 13:45:31,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:45:31,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5808 states. [2020-07-21 13:45:31,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5808 to 5808. [2020-07-21 13:45:31,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5808 states. [2020-07-21 13:45:31,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5808 states to 5808 states and 7019 transitions. [2020-07-21 13:45:31,586 INFO L78 Accepts]: Start accepts. Automaton has 5808 states and 7019 transitions. Word has length 161 [2020-07-21 13:45:31,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:45:31,587 INFO L479 AbstractCegarLoop]: Abstraction has 5808 states and 7019 transitions. [2020-07-21 13:45:31,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:45:31,587 INFO L276 IsEmpty]: Start isEmpty. Operand 5808 states and 7019 transitions. [2020-07-21 13:45:31,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-07-21 13:45:31,610 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:45:31,611 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:45:31,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:45:31,825 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:45:31,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:45:31,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1628827276, now seen corresponding path program 1 times [2020-07-21 13:45:31,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:45:31,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717145612] [2020-07-21 13:45:31,827 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:45:32,022 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:45:32,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:45:32,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 13:45:32,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:45:32,077 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-07-21 13:45:32,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:45:32,159 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 142 proven. 16 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-07-21 13:45:32,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [717145612] [2020-07-21 13:45:32,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:45:32,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:45:32,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215156764] [2020-07-21 13:45:32,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:45:32,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:45:32,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:45:32,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:45:32,163 INFO L87 Difference]: Start difference. First operand 5808 states and 7019 transitions. Second operand 7 states. [2020-07-21 13:45:33,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:45:33,592 INFO L93 Difference]: Finished difference Result 9081 states and 11033 transitions. [2020-07-21 13:45:33,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 13:45:33,593 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 214 [2020-07-21 13:45:33,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:45:33,594 INFO L225 Difference]: With dead ends: 9081 [2020-07-21 13:45:33,594 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 13:45:33,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:45:33,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 13:45:33,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 13:45:33,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 13:45:33,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 13:45:33,610 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 214 [2020-07-21 13:45:33,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:45:33,611 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 13:45:33,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:45:33,611 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 13:45:33,611 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 13:45:33,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:45:33,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 13:45:34,920 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 143 [2020-07-21 13:45:35,342 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 143 [2020-07-21 13:45:38,050 WARN L193 SmtUtils]: Spent 2.63 s on a formula simplification. DAG size of input: 225 DAG size of output: 112 [2020-07-21 13:45:38,977 WARN L193 SmtUtils]: Spent 902.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 64 [2020-07-21 13:45:39,847 WARN L193 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 64 [2020-07-21 13:45:39,851 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:45:39,851 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a8~0 |old(~a8~0)|) (<= ~a16~0 |old(~a16~0)|) (= ~a7~0 |old(~a7~0)|) (<= |old(~a16~0)| ~a16~0) (= ~a21~0 |old(~a21~0)|)) [2020-07-21 13:45:39,852 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:45:39,852 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 13:45:39,852 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 13:45:39,852 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,852 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,853 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,853 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,853 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,853 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,853 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 13:45:39,853 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 13:45:39,854 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 13:45:39,854 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 13:45:39,854 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 13:45:39,854 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 13:45:39,854 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 13:45:39,854 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 13:45:39,854 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 13:45:39,854 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 13:45:39,855 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,855 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,855 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,855 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,855 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,855 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,855 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 13:45:39,856 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 13:45:39,856 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 13:45:39,856 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 13:45:39,856 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 13:45:39,856 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 13:45:39,856 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 13:45:39,856 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 13:45:39,857 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 13:45:39,857 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 13:45:39,857 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 13:45:39,857 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 458) no Hoare annotation was computed. [2020-07-21 13:45:39,857 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 13:45:39,857 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 13:45:39,857 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 13:45:39,858 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 13:45:39,858 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,858 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,858 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,858 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,858 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,858 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 13:45:39,858 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 13:45:39,858 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 13:45:39,859 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 13:45:39,859 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 13:45:39,859 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 13:45:39,859 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 13:45:39,859 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 13:45:39,859 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 13:45:39,859 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,859 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,859 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,859 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,859 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,860 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 13:45:39,860 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 13:45:39,860 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 13:45:39,860 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 13:45:39,860 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 13:45:39,860 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 13:45:39,860 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 13:45:39,860 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 13:45:39,861 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 13:45:39,861 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 13:45:39,861 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 13:45:39,861 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 13:45:39,861 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 13:45:39,861 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,861 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,861 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,862 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,862 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,862 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 13:45:39,862 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 13:45:39,862 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 13:45:39,862 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 13:45:39,862 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 13:45:39,862 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 13:45:39,862 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 13:45:39,862 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 13:45:39,863 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 13:45:39,863 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,863 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,863 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,863 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,863 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,863 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,863 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 13:45:39,863 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,863 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 13:45:39,863 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 13:45:39,863 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 13:45:39,863 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 13:45:39,863 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 13:45:39,864 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 13:45:39,864 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 13:45:39,864 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 13:45:39,864 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 13:45:39,864 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 13:45:39,864 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 13:45:39,864 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 13:45:39,864 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 13:45:39,864 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,865 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,865 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,865 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,865 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,865 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 13:45:39,865 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 13:45:39,865 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 13:45:39,865 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 13:45:39,866 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 13:45:39,866 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 13:45:39,866 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 13:45:39,866 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 13:45:39,866 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,866 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,866 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,867 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,867 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,867 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 13:45:39,867 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 13:45:39,867 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 13:45:39,867 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 13:45:39,867 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 13:45:39,867 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 13:45:39,868 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 13:45:39,868 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 13:45:39,868 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 13:45:39,868 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 13:45:39,869 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (not (= 1 |old(~a20~0)|))) (.cse8 (not (<= |old(~a8~0)| 13)))) (let ((.cse19 (or .cse0 .cse8)) (.cse20 (not (<= |old(~a16~0)| 5))) (.cse21 (not (< |old(~a8~0)| 15)))) (let ((.cse25 (<= ~a16~0 5)) (.cse27 (< ~a8~0 15)) (.cse11 (<= ~a8~0 |old(~a8~0)|)) (.cse12 (<= ~a16~0 |old(~a16~0)|)) (.cse13 (<= ~a8~0 13)) (.cse18 (<= ~a17~0 0)) (.cse3 (= 1 ~a20~0)) (.cse14 (= ~a21~0 |old(~a21~0)|)) (.cse26 (and .cse19 (or .cse0 .cse20 .cse21))) (.cse5 (not (<= |old(~a17~0)| 0)))) (let ((.cse9 (not (<= |old(~a16~0)| 4))) (.cse7 (and (or .cse26 .cse5) (or .cse20 .cse21 .cse5))) (.cse23 (= ~a7~0 |old(~a7~0)|)) (.cse15 (and (or (and .cse11 .cse12 .cse18 .cse25 .cse27) (and .cse11 .cse12 .cse13 .cse18 .cse3)) .cse14)) (.cse24 (<= 15 ~a8~0)) (.cse6 (not (<= |old(~a21~0)| 0))) (.cse10 (not (= 1 |old(~a7~0)|))) (.cse16 (= 1 ~a7~0)) (.cse17 (<= |old(~a16~0)| ~a16~0)) (.cse22 (not (<= 5 |old(~a16~0)|))) (.cse1 (not (<= 15 |old(~a8~0)|))) (.cse2 (not (<= |old(~a7~0)| 0))) (.cse4 (not (= 1 |old(~a21~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or (and (or .cse6 .cse7) (or .cse6 .cse8 .cse9)) .cse10 (and (or (and .cse11 .cse12 .cse13 .cse14 (<= ~a16~0 4)) .cse15) .cse16 .cse17)) (or .cse18 (and .cse19 (or .cse20 .cse21)) .cse4 .cse22 .cse5) (or .cse11 .cse0 .cse6 .cse10 .cse8) (or .cse1 .cse2 (and .cse11 .cse12 .cse23 .cse17 .cse24 .cse14) .cse4) (or .cse1 .cse10 (and .cse11 .cse12 .cse16 .cse17 .cse18 .cse24 .cse14) .cse9 .cse4 .cse5) (or .cse0 .cse1 .cse2 .cse3 .cse22 .cse4) (or (and (or (and (or .cse0 .cse2 .cse8) (or .cse2 .cse20)) .cse4) (or .cse0 .cse8 .cse9 .cse4) (or .cse7 .cse4)) (and .cse23 .cse17 (or (and .cse12 .cse11 (<= ~a7~0 0) .cse25 .cse14) (and .cse11 .cse12 .cse13 .cse3 .cse14) .cse15))) (or .cse1 .cse10 .cse20 (and .cse11 .cse16 .cse18 .cse25 .cse24 (<= 5 ~a16~0) .cse14) .cse22 .cse4 .cse5) (or .cse6 .cse10 .cse26 (and .cse16 (or (and .cse25 .cse27 .cse3) (and .cse12 .cse13 .cse3)) .cse17 .cse14) .cse22) (or .cse1 .cse18 .cse2 .cse4 .cse5)))))) [2020-07-21 13:45:39,869 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 13:45:39,869 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,869 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,869 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,869 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,869 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 13:45:39,869 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,869 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,870 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 13:45:39,870 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 13:45:39,870 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 13:45:39,870 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 13:45:39,870 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 13:45:39,870 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 13:45:39,870 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 13:45:39,870 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 13:45:39,871 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 13:45:39,871 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 13:45:39,871 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 13:45:39,871 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 13:45:39,871 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,871 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,871 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,871 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,871 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,872 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 13:45:39,872 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,872 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 13:45:39,872 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 13:45:39,872 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 13:45:39,872 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 13:45:39,872 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 13:45:39,872 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 13:45:39,872 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 13:45:39,873 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 13:45:39,873 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 13:45:39,873 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 13:45:39,873 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 13:45:39,873 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 13:45:39,873 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 13:45:39,873 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 13:45:39,873 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,873 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,874 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,874 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,874 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,874 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:45:39,874 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 13:45:39,874 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 13:45:39,874 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 13:45:39,874 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 13:45:39,874 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 13:45:39,875 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 13:45:39,875 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 13:45:39,875 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 13:45:39,875 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 13:45:39,875 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 13:45:39,875 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:45:39,875 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0) (= 1 ~a21~0) (= 1 ~a20~0)) [2020-07-21 13:45:39,876 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 13:45:39,876 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:45:39,876 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and (<= ~a8~0 |old(~a8~0)|) (= ~a7~0 |old(~a7~0)|) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0) (= 1 ~a20~0) (= ~a21~0 |old(~a21~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (<= 5 |old(~a16~0)|)) (not (= 1 |old(~a21~0)|))) [2020-07-21 13:45:39,876 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 13:45:39,876 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse7 (<= ~a8~0 13)) (.cse2 (<= ~a16~0 5)) (.cse4 (< ~a8~0 15)) (.cse10 (= 1 ~a20~0))) (let ((.cse1 (<= ~a17~0 0)) (.cse0 (= 1 ~a7~0)) (.cse6 (<= ~a21~0 0)) (.cse5 (or (and .cse7 .cse10) (and .cse2 .cse4 .cse10))) (.cse9 (<= ~a7~0 0)) (.cse3 (= 1 ~a21~0)) (.cse8 (<= ~a16~0 4))) (or (not (<= |old(~a7~0)| 0)) (and .cse0 .cse1 .cse2 .cse3) (and (or (and .cse1 .cse2 .cse4) (and .cse1 .cse5)) .cse3) (and .cse0 (or (and .cse6 .cse1 .cse2 .cse4) (and .cse7 .cse6 .cse8))) (not (<= 5 |old(~a16~0)|)) (and (or (and .cse9 .cse2) (and .cse7 .cse9 .cse10)) .cse3) (and .cse0 .cse6 .cse5 (<= 5 ~a16~0)) (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and .cse9 (<= 15 ~a8~0) .cse3) (not (<= |old(~a16~0)| 5)) (not (= 1 |old(~a21~0)|)) (and .cse7 .cse3 .cse10 .cse8)))) [2020-07-21 13:45:39,877 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 13:45:39,877 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 13:45:39,877 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse7 (<= ~a8~0 13)) (.cse2 (<= ~a16~0 5)) (.cse4 (< ~a8~0 15)) (.cse10 (= 1 ~a20~0))) (let ((.cse1 (<= ~a17~0 0)) (.cse0 (= 1 ~a7~0)) (.cse6 (<= ~a21~0 0)) (.cse5 (or (and .cse7 .cse10) (and .cse2 .cse4 .cse10))) (.cse9 (<= ~a7~0 0)) (.cse3 (= 1 ~a21~0)) (.cse8 (<= ~a16~0 4))) (or (not (<= |old(~a7~0)| 0)) (and .cse0 .cse1 .cse2 .cse3) (and (or (and .cse1 .cse2 .cse4) (and .cse1 .cse5)) .cse3) (and .cse0 (or (and .cse6 .cse1 .cse2 .cse4) (and .cse7 .cse6 .cse8))) (not (<= 5 |old(~a16~0)|)) (and (or (and .cse9 .cse2) (and .cse7 .cse9 .cse10)) .cse3) (and .cse0 .cse6 .cse5 (<= 5 ~a16~0)) (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and .cse9 (<= 15 ~a8~0) .cse3) (not (<= |old(~a16~0)| 5)) (not (= 1 |old(~a21~0)|)) (and .cse7 .cse3 .cse10 .cse8)))) [2020-07-21 13:45:39,877 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 13:45:39,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:45:39 BoogieIcfgContainer [2020-07-21 13:45:39,903 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 13:45:39,908 INFO L168 Benchmark]: Toolchain (without parser) took 26494.24 ms. Allocated memory was 144.7 MB in the beginning and 646.4 MB in the end (delta: 501.7 MB). Free memory was 99.5 MB in the beginning and 422.7 MB in the end (delta: -323.2 MB). Peak memory consumption was 468.8 MB. Max. memory is 7.1 GB. [2020-07-21 13:45:39,909 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory was 119.6 MB in the beginning and 119.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 13:45:39,909 INFO L168 Benchmark]: CACSL2BoogieTranslator took 818.30 ms. Allocated memory was 144.7 MB in the beginning and 205.5 MB in the end (delta: 60.8 MB). Free memory was 99.2 MB in the beginning and 172.0 MB in the end (delta: -72.8 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2020-07-21 13:45:39,910 INFO L168 Benchmark]: Boogie Preprocessor took 111.50 ms. Allocated memory is still 205.5 MB. Free memory was 172.0 MB in the beginning and 167.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 13:45:39,911 INFO L168 Benchmark]: RCFGBuilder took 1397.64 ms. Allocated memory was 205.5 MB in the beginning and 237.5 MB in the end (delta: 32.0 MB). Free memory was 167.0 MB in the beginning and 180.2 MB in the end (delta: -13.2 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. [2020-07-21 13:45:39,912 INFO L168 Benchmark]: TraceAbstraction took 24156.48 ms. Allocated memory was 237.5 MB in the beginning and 646.4 MB in the end (delta: 408.9 MB). Free memory was 180.2 MB in the beginning and 422.7 MB in the end (delta: -242.5 MB). Peak memory consumption was 456.7 MB. Max. memory is 7.1 GB. [2020-07-21 13:45:39,915 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory was 119.6 MB in the beginning and 119.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 818.30 ms. Allocated memory was 144.7 MB in the beginning and 205.5 MB in the end (delta: 60.8 MB). Free memory was 99.2 MB in the beginning and 172.0 MB in the end (delta: -72.8 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.50 ms. Allocated memory is still 205.5 MB. Free memory was 172.0 MB in the beginning and 167.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1397.64 ms. Allocated memory was 205.5 MB in the beginning and 237.5 MB in the end (delta: 32.0 MB). Free memory was 167.0 MB in the beginning and 180.2 MB in the end (delta: -13.2 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 24156.48 ms. Allocated memory was 237.5 MB in the beginning and 646.4 MB in the end (delta: 408.9 MB). Free memory was 180.2 MB in the beginning and 422.7 MB in the end (delta: -242.5 MB). Peak memory consumption was 456.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 458]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((!(\old(a7) <= 0) || (((1 == a7 && a17 <= 0) && a16 <= 5) && 1 == a21)) || ((((a17 <= 0 && a16 <= 5) && a8 < 15) || (a17 <= 0 && ((a8 <= 13 && 1 == a20) || ((a16 <= 5 && a8 < 15) && 1 == a20)))) && 1 == a21)) || (1 == a7 && ((((a21 <= 0 && a17 <= 0) && a16 <= 5) && a8 < 15) || ((a8 <= 13 && a21 <= 0) && a16 <= 4)))) || !(5 <= \old(a16))) || (((a7 <= 0 && a16 <= 5) || ((a8 <= 13 && a7 <= 0) && 1 == a20)) && 1 == a21)) || (((1 == a7 && a21 <= 0) && ((a8 <= 13 && 1 == a20) || ((a16 <= 5 && a8 < 15) && 1 == a20))) && 5 <= a16)) || !(1 == \old(a20))) || !(15 <= \old(a8))) || ((a7 <= 0 && 15 <= a8) && 1 == a21)) || !(\old(a16) <= 5)) || !(1 == \old(a21))) || (((a8 <= 13 && 1 == a21) && 1 == a20) && a16 <= 4) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.0s, OverallIterations: 11, TraceHistogramMax: 5, AutomataDifference: 11.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 546 SDtfs, 3800 SDslu, 387 SDs, 0 SdLazy, 8568 SolverSat, 1195 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2442 GetRequests, 2384 SyntacticMatches, 6 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5808occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 4396 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 206 PreInvPairs, 304 NumberOfFragments, 1046 HoareAnnotationTreeSize, 206 FomulaSimplifications, 221064 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 68998 FormulaSimplificationTreeSizeReductionInter, 4.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1520 NumberOfCodeBlocks, 1520 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2406 ConstructedInterpolants, 0 QuantifiedInterpolants, 655103 SizeOfPredicates, 13 NumberOfNonLiveVariables, 4678 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 17 InterpolantComputations, 5 PerfectInterpolantSequences, 1000/1063 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...