/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_label43.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 13:48:41,718 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 13:48:41,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 13:48:41,738 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 13:48:41,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 13:48:41,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 13:48:41,743 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 13:48:41,753 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 13:48:41,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 13:48:41,756 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 13:48:41,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 13:48:41,760 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 13:48:41,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 13:48:41,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 13:48:41,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 13:48:41,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 13:48:41,771 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 13:48:41,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 13:48:41,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 13:48:41,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 13:48:41,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 13:48:41,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 13:48:41,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 13:48:41,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 13:48:41,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 13:48:41,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 13:48:41,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 13:48:41,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 13:48:41,809 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 13:48:41,846 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 13:48:41,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 13:48:41,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 13:48:41,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 13:48:41,851 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 13:48:41,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 13:48:41,852 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 13:48:41,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 13:48:41,854 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 13:48:41,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 13:48:41,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 13:48:41,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 13:48:41,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 13:48:41,855 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 13:48:41,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 13:48:41,856 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 13:48:41,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 13:48:41,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 13:48:41,857 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 13:48:41,857 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 13:48:41,857 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 13:48:41,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 13:48:41,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 13:48:41,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 13:48:41,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 13:48:41,859 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 13:48:41,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:48:41,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 13:48:41,859 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 13:48:41,860 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 13:48:42,200 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 13:48:42,219 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 13:48:42,223 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 13:48:42,224 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 13:48:42,225 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 13:48:42,227 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label43.c [2020-07-21 13:48:42,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df297fab5/64552e3a98594468aea70c1fcd1ceaf3/FLAGf6efd1251 [2020-07-21 13:48:42,905 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 13:48:42,906 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label43.c [2020-07-21 13:48:42,922 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df297fab5/64552e3a98594468aea70c1fcd1ceaf3/FLAGf6efd1251 [2020-07-21 13:48:43,147 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df297fab5/64552e3a98594468aea70c1fcd1ceaf3 [2020-07-21 13:48:43,156 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 13:48:43,159 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 13:48:43,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 13:48:43,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 13:48:43,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 13:48:43,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:48:43" (1/1) ... [2020-07-21 13:48:43,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dffb5e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:43, skipping insertion in model container [2020-07-21 13:48:43,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:48:43" (1/1) ... [2020-07-21 13:48:43,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 13:48:43,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 13:48:43,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:48:43,778 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 13:48:43,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:48:43,886 INFO L208 MainTranslator]: Completed translation [2020-07-21 13:48:43,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:43 WrapperNode [2020-07-21 13:48:43,887 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 13:48:43,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 13:48:43,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 13:48:43,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 13:48:43,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:43" (1/1) ... [2020-07-21 13:48:43,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:43" (1/1) ... [2020-07-21 13:48:43,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:43" (1/1) ... [2020-07-21 13:48:43,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:43" (1/1) ... [2020-07-21 13:48:43,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:43" (1/1) ... [2020-07-21 13:48:43,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:43" (1/1) ... [2020-07-21 13:48:43,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:43" (1/1) ... [2020-07-21 13:48:43,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 13:48:43,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 13:48:43,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 13:48:43,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 13:48:43,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:43" (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 13:48:44,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 13:48:44,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 13:48:44,084 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 13:48:44,084 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 13:48:44,085 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 13:48:44,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 13:48:44,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 13:48:44,086 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 13:48:44,087 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 13:48:44,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 13:48:44,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 13:48:45,334 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 13:48:45,334 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 13:48:45,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:48:45 BoogieIcfgContainer [2020-07-21 13:48:45,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 13:48:45,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 13:48:45,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 13:48:45,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 13:48:45,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:48:43" (1/3) ... [2020-07-21 13:48:45,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57365783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:48:45, skipping insertion in model container [2020-07-21 13:48:45,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:43" (2/3) ... [2020-07-21 13:48:45,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57365783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:48:45, skipping insertion in model container [2020-07-21 13:48:45,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:48:45" (3/3) ... [2020-07-21 13:48:45,350 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label43.c [2020-07-21 13:48:45,361 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 13:48:45,372 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 13:48:45,388 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 13:48:45,423 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 13:48:45,423 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 13:48:45,423 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 13:48:45,424 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 13:48:45,424 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 13:48:45,424 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 13:48:45,424 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 13:48:45,424 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 13:48:45,448 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 13:48:45,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-07-21 13:48:45,464 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:48:45,465 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:48:45,466 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:48:45,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:48:45,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1457340122, now seen corresponding path program 1 times [2020-07-21 13:48:45,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:48:45,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1140960181] [2020-07-21 13:48:45,484 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 13:48:45,761 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:48:45,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:48:45,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:48:45,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:48:45,954 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 13:48:45,955 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:48:45,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1140960181] [2020-07-21 13:48:45,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:48:45,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:48:45,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686091098] [2020-07-21 13:48:45,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:48:45,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:48:45,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:48:45,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:48:45,986 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-21 13:48:46,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:48:46,920 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2020-07-21 13:48:46,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:48:46,923 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 134 [2020-07-21 13:48:46,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:48:46,941 INFO L225 Difference]: With dead ends: 547 [2020-07-21 13:48:46,942 INFO L226 Difference]: Without dead ends: 278 [2020-07-21 13:48:46,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 132 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 13:48:46,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-21 13:48:47,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-21 13:48:47,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-21 13:48:47,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 406 transitions. [2020-07-21 13:48:47,024 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 406 transitions. Word has length 134 [2020-07-21 13:48:47,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:48:47,026 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 406 transitions. [2020-07-21 13:48:47,026 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:48:47,026 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 406 transitions. [2020-07-21 13:48:47,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-21 13:48:47,031 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:48:47,032 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:48:47,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:48:47,247 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:48:47,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:48:47,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1707028349, now seen corresponding path program 1 times [2020-07-21 13:48:47,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:48:47,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1897769265] [2020-07-21 13:48:47,250 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 13:48:47,389 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:48:47,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:48:47,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:48:47,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:48:47,467 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:48:47,467 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:48:47,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1897769265] [2020-07-21 13:48:47,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:48:47,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:48:47,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707462559] [2020-07-21 13:48:47,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:48:47,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:48:47,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:48:47,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:48:47,472 INFO L87 Difference]: Start difference. First operand 278 states and 406 transitions. Second operand 5 states. [2020-07-21 13:48:48,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:48:48,247 INFO L93 Difference]: Finished difference Result 842 states and 1252 transitions. [2020-07-21 13:48:48,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:48:48,248 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2020-07-21 13:48:48,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:48:48,256 INFO L225 Difference]: With dead ends: 842 [2020-07-21 13:48:48,256 INFO L226 Difference]: Without dead ends: 570 [2020-07-21 13:48:48,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 139 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 13:48:48,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-07-21 13:48:48,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 556. [2020-07-21 13:48:48,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-07-21 13:48:48,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 785 transitions. [2020-07-21 13:48:48,310 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 785 transitions. Word has length 143 [2020-07-21 13:48:48,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:48:48,310 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 785 transitions. [2020-07-21 13:48:48,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:48:48,311 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 785 transitions. [2020-07-21 13:48:48,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-21 13:48:48,318 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:48:48,318 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:48:48,519 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:48:48,521 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:48:48,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:48:48,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1025958774, now seen corresponding path program 1 times [2020-07-21 13:48:48,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:48:48,522 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1361566360] [2020-07-21 13:48:48,523 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 13:48:48,680 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:48:48,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:48:48,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:48:48,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:48:48,734 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-21 13:48:48,734 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:48:48,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1361566360] [2020-07-21 13:48:48,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:48:48,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:48:48,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148795437] [2020-07-21 13:48:48,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:48:48,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:48:48,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:48:48,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:48:48,737 INFO L87 Difference]: Start difference. First operand 556 states and 785 transitions. Second operand 3 states. [2020-07-21 13:48:49,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:48:49,376 INFO L93 Difference]: Finished difference Result 1654 states and 2396 transitions. [2020-07-21 13:48:49,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:48:49,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2020-07-21 13:48:49,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:48:49,394 INFO L225 Difference]: With dead ends: 1654 [2020-07-21 13:48:49,395 INFO L226 Difference]: Without dead ends: 1104 [2020-07-21 13:48:49,397 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:48:49,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2020-07-21 13:48:49,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 834. [2020-07-21 13:48:49,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 834 states. [2020-07-21 13:48:49,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1162 transitions. [2020-07-21 13:48:49,456 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1162 transitions. Word has length 154 [2020-07-21 13:48:49,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:48:49,457 INFO L479 AbstractCegarLoop]: Abstraction has 834 states and 1162 transitions. [2020-07-21 13:48:49,457 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:48:49,457 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1162 transitions. [2020-07-21 13:48:49,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-07-21 13:48:49,462 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:48:49,462 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:48:49,677 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:48:49,678 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:48:49,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:48:49,679 INFO L82 PathProgramCache]: Analyzing trace with hash -496294631, now seen corresponding path program 1 times [2020-07-21 13:48:49,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:48:49,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814610768] [2020-07-21 13:48:49,681 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 13:48:49,829 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:48:49,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:48:49,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:48:49,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:48:49,916 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:48:49,916 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:48:49,917 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814610768] [2020-07-21 13:48:49,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:48:49,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:48:49,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683263546] [2020-07-21 13:48:49,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:48:49,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:48:49,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:48:49,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:48:49,920 INFO L87 Difference]: Start difference. First operand 834 states and 1162 transitions. Second operand 5 states. [2020-07-21 13:48:50,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:48:50,847 INFO L93 Difference]: Finished difference Result 2244 states and 3195 transitions. [2020-07-21 13:48:50,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:48:50,850 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 162 [2020-07-21 13:48:50,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:48:50,869 INFO L225 Difference]: With dead ends: 2244 [2020-07-21 13:48:50,870 INFO L226 Difference]: Without dead ends: 1416 [2020-07-21 13:48:50,873 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 158 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 13:48:50,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2020-07-21 13:48:50,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1404. [2020-07-21 13:48:50,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1404 states. [2020-07-21 13:48:50,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 1899 transitions. [2020-07-21 13:48:50,948 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 1899 transitions. Word has length 162 [2020-07-21 13:48:50,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:48:50,948 INFO L479 AbstractCegarLoop]: Abstraction has 1404 states and 1899 transitions. [2020-07-21 13:48:50,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:48:50,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 1899 transitions. [2020-07-21 13:48:50,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-07-21 13:48:50,956 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:48:50,956 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:48:51,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:48:51,164 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:48:51,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:48:51,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1675900338, now seen corresponding path program 1 times [2020-07-21 13:48:51,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:48:51,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [962858605] [2020-07-21 13:48:51,167 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 13:48:51,311 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:48:51,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:48:51,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:48:51,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:48:51,376 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:48:51,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:48:51,474 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:48:51,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [962858605] [2020-07-21 13:48:51,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:48:51,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 13:48:51,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026826519] [2020-07-21 13:48:51,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 13:48:51,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:48:51,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 13:48:51,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 13:48:51,478 INFO L87 Difference]: Start difference. First operand 1404 states and 1899 transitions. Second operand 8 states. [2020-07-21 13:48:53,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:48:53,701 INFO L93 Difference]: Finished difference Result 5253 states and 7698 transitions. [2020-07-21 13:48:53,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 13:48:53,702 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 173 [2020-07-21 13:48:53,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:48:53,734 INFO L225 Difference]: With dead ends: 5253 [2020-07-21 13:48:53,734 INFO L226 Difference]: Without dead ends: 3855 [2020-07-21 13:48:53,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 343 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 13:48:53,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3855 states. [2020-07-21 13:48:53,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3855 to 2784. [2020-07-21 13:48:53,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2784 states. [2020-07-21 13:48:53,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2784 states to 2784 states and 3628 transitions. [2020-07-21 13:48:53,883 INFO L78 Accepts]: Start accepts. Automaton has 2784 states and 3628 transitions. Word has length 173 [2020-07-21 13:48:53,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:48:53,883 INFO L479 AbstractCegarLoop]: Abstraction has 2784 states and 3628 transitions. [2020-07-21 13:48:53,884 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 13:48:53,884 INFO L276 IsEmpty]: Start isEmpty. Operand 2784 states and 3628 transitions. [2020-07-21 13:48:53,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-07-21 13:48:53,898 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:48:53,898 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:48:54,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:48:54,112 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:48:54,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:48:54,113 INFO L82 PathProgramCache]: Analyzing trace with hash 951508270, now seen corresponding path program 1 times [2020-07-21 13:48:54,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:48:54,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728436648] [2020-07-21 13:48:54,115 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 13:48:54,264 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:48:54,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:48:54,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:48:54,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:48:54,317 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-21 13:48:54,318 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:48:54,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728436648] [2020-07-21 13:48:54,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:48:54,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:48:54,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005819193] [2020-07-21 13:48:54,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:48:54,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:48:54,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:48:54,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:48:54,320 INFO L87 Difference]: Start difference. First operand 2784 states and 3628 transitions. Second operand 3 states. [2020-07-21 13:48:54,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:48:54,864 INFO L93 Difference]: Finished difference Result 4881 states and 6350 transitions. [2020-07-21 13:48:54,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:48:54,865 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2020-07-21 13:48:54,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:48:54,880 INFO L225 Difference]: With dead ends: 4881 [2020-07-21 13:48:54,881 INFO L226 Difference]: Without dead ends: 2784 [2020-07-21 13:48:54,886 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 173 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 13:48:54,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2020-07-21 13:48:54,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 2784. [2020-07-21 13:48:54,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2784 states. [2020-07-21 13:48:54,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2784 states to 2784 states and 3501 transitions. [2020-07-21 13:48:54,962 INFO L78 Accepts]: Start accepts. Automaton has 2784 states and 3501 transitions. Word has length 175 [2020-07-21 13:48:54,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:48:54,963 INFO L479 AbstractCegarLoop]: Abstraction has 2784 states and 3501 transitions. [2020-07-21 13:48:54,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:48:54,963 INFO L276 IsEmpty]: Start isEmpty. Operand 2784 states and 3501 transitions. [2020-07-21 13:48:54,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-07-21 13:48:54,973 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:48:54,974 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:48:55,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:48:55,189 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:48:55,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:48:55,190 INFO L82 PathProgramCache]: Analyzing trace with hash 490449498, now seen corresponding path program 1 times [2020-07-21 13:48:55,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:48:55,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [140360923] [2020-07-21 13:48:55,191 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 13:48:55,327 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:48:55,327 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:48:55,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:48:55,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:48:55,438 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:48:55,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:48:55,556 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:48:55,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [140360923] [2020-07-21 13:48:55,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:48:55,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:48:55,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539442361] [2020-07-21 13:48:55,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:48:55,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:48:55,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:48:55,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:48:55,559 INFO L87 Difference]: Start difference. First operand 2784 states and 3501 transitions. Second operand 6 states. [2020-07-21 13:48:56,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:48:56,653 INFO L93 Difference]: Finished difference Result 6119 states and 8122 transitions. [2020-07-21 13:48:56,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 13:48:56,654 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 217 [2020-07-21 13:48:56,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:48:56,675 INFO L225 Difference]: With dead ends: 6119 [2020-07-21 13:48:56,675 INFO L226 Difference]: Without dead ends: 3345 [2020-07-21 13:48:56,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 430 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 13:48:56,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3345 states. [2020-07-21 13:48:56,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3345 to 2669. [2020-07-21 13:48:56,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2669 states. [2020-07-21 13:48:56,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 3304 transitions. [2020-07-21 13:48:56,853 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 3304 transitions. Word has length 217 [2020-07-21 13:48:56,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:48:56,854 INFO L479 AbstractCegarLoop]: Abstraction has 2669 states and 3304 transitions. [2020-07-21 13:48:56,854 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:48:56,854 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 3304 transitions. [2020-07-21 13:48:56,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-07-21 13:48:56,863 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:48:56,864 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:48:57,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:48:57,078 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:48:57,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:48:57,079 INFO L82 PathProgramCache]: Analyzing trace with hash -543444014, now seen corresponding path program 1 times [2020-07-21 13:48:57,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:48:57,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2037688030] [2020-07-21 13:48:57,080 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 13:48:57,212 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:48:57,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:48:57,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 13:48:57,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:48:57,273 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 13:48:57,274 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:48:57,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2037688030] [2020-07-21 13:48:57,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:48:57,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:48:57,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858351190] [2020-07-21 13:48:57,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:48:57,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:48:57,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:48:57,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:48:57,276 INFO L87 Difference]: Start difference. First operand 2669 states and 3304 transitions. Second operand 3 states. [2020-07-21 13:48:57,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:48:57,889 INFO L93 Difference]: Finished difference Result 6954 states and 8660 transitions. [2020-07-21 13:48:57,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:48:57,890 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2020-07-21 13:48:57,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:48:57,891 INFO L225 Difference]: With dead ends: 6954 [2020-07-21 13:48:57,891 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 13:48:57,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 219 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 13:48:57,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 13:48:57,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 13:48:57,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 13:48:57,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 13:48:57,910 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 221 [2020-07-21 13:48:57,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:48:57,911 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 13:48:57,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:48:57,911 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 13:48:57,911 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 13:48:58,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:48:58,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 13:48:58,737 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 56 [2020-07-21 13:48:59,036 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 56 [2020-07-21 13:49:00,021 WARN L193 SmtUtils]: Spent 922.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 68 [2020-07-21 13:49:00,287 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 37 [2020-07-21 13:49:00,521 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 37 [2020-07-21 13:49:00,525 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:49:00,525 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)|) (<= |old(~a16~0)| ~a16~0) (<= ~a7~0 |old(~a7~0)|)) [2020-07-21 13:49:00,525 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:49:00,526 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 13:49:00,526 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 13:49:00,526 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,526 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,526 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,526 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,526 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,527 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,527 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 13:49:00,527 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 13:49:00,527 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 13:49:00,527 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 13:49:00,527 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 13:49:00,528 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 13:49:00,528 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 13:49:00,528 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 13:49:00,528 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 13:49:00,528 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 13:49:00,528 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,529 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,529 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,529 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,529 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,529 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,529 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 13:49:00,529 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 13:49:00,530 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 13:49:00,530 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 13:49:00,530 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 13:49:00,530 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 13:49:00,530 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 13:49:00,530 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 13:49:00,530 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 13:49:00,531 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 13:49:00,531 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 13:49:00,531 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 560) no Hoare annotation was computed. [2020-07-21 13:49:00,531 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 13:49:00,531 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 13:49:00,531 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 13:49:00,532 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 13:49:00,532 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,532 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,532 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,532 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,532 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,533 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 13:49:00,533 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 13:49:00,533 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 13:49:00,533 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 13:49:00,533 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 13:49:00,533 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 13:49:00,533 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 13:49:00,534 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 13:49:00,534 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 13:49:00,534 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,534 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,534 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,534 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,534 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,535 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 13:49:00,535 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 13:49:00,535 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 13:49:00,535 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 13:49:00,535 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 13:49:00,535 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 13:49:00,535 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 13:49:00,536 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 13:49:00,536 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 13:49:00,536 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 13:49:00,536 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 13:49:00,536 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 13:49:00,536 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 13:49:00,536 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,536 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,537 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,537 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,537 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,537 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 13:49:00,537 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 13:49:00,537 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 13:49:00,538 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 13:49:00,538 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 13:49:00,538 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 13:49:00,538 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 13:49:00,538 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 13:49:00,538 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 13:49:00,538 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,538 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,539 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,539 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,539 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,539 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,539 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 13:49:00,539 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,539 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 13:49:00,540 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 13:49:00,540 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 13:49:00,540 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 13:49:00,540 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 13:49:00,540 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 13:49:00,540 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 13:49:00,540 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 13:49:00,540 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 13:49:00,541 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 13:49:00,541 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 13:49:00,541 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 13:49:00,541 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 13:49:00,541 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,541 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,541 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,542 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,542 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,542 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 13:49:00,542 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 13:49:00,542 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 13:49:00,542 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 13:49:00,542 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 13:49:00,542 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 13:49:00,543 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 13:49:00,543 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 13:49:00,543 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,543 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,543 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,543 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,543 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,544 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 13:49:00,544 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 13:49:00,544 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 13:49:00,544 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 13:49:00,544 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 13:49:00,544 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 13:49:00,544 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 13:49:00,544 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 13:49:00,545 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 13:49:00,545 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 13:49:00,545 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse6 (not (<= |old(~a17~0)| 0))) (.cse9 (not (<= |old(~a7~0)| 0))) (.cse4 (not (<= |old(~a16~0)| 5)))) (let ((.cse10 (let ((.cse12 (not (< |old(~a8~0)| 15)))) (and (or .cse9 .cse12 .cse6) (or .cse9 .cse4 .cse12)))) (.cse11 (not (<= 15 |old(~a8~0)|))) (.cse0 (<= ~a16~0 |old(~a16~0)|)) (.cse5 (not (<= |old(~a8~0)| 13))) (.cse1 (<= ~a8~0 |old(~a8~0)|)) (.cse2 (<= |old(~a16~0)| ~a16~0)) (.cse3 (<= ~a7~0 |old(~a7~0)|)) (.cse7 (not (= 1 |old(~a20~0)|))) (.cse8 (= 1 ~a20~0))) (and (or (and .cse0 .cse1 (<= ~a8~0 13) .cse2 .cse3 (<= ~a16~0 4)) (and .cse0 .cse1 .cse2 (<= ~a17~0 0) .cse3) (and (or .cse4 .cse5 (not (<= |old(~a16~0)| 4))) .cse6)) (or .cse7 (and .cse1 .cse0 .cse2 .cse8 .cse3) .cse9 .cse5) (or .cse7 .cse8 .cse10) (or (and .cse0 .cse1 .cse2 .cse3) .cse10) (or .cse7 .cse11 .cse8 (not (<= 5 |old(~a16~0)|))) (or .cse11 (and .cse1 .cse0 .cse2 (<= 15 ~a8~0) .cse3)) (or .cse7 .cse4 .cse5 (and .cse1 .cse2 (<= ~a16~0 5) .cse8 .cse3)) (or .cse7 .cse8 .cse6)))) [2020-07-21 13:49:00,545 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 13:49:00,545 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,546 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,546 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,546 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,546 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 13:49:00,546 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,546 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,546 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 13:49:00,547 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 13:49:00,547 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 13:49:00,547 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 13:49:00,547 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 13:49:00,547 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 13:49:00,547 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 13:49:00,547 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 13:49:00,547 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 13:49:00,547 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 13:49:00,548 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 13:49:00,548 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 13:49:00,548 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,548 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,548 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,548 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,548 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,548 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 13:49:00,549 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,549 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 13:49:00,549 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 13:49:00,549 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 13:49:00,549 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 13:49:00,549 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 13:49:00,549 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 13:49:00,549 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 13:49:00,550 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 13:49:00,550 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 13:49:00,550 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 13:49:00,550 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 13:49:00,550 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 13:49:00,550 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 13:49:00,550 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 13:49:00,550 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,551 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,551 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,551 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,551 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,551 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:00,551 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 13:49:00,551 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 13:49:00,552 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 13:49:00,552 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 13:49:00,552 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 13:49:00,552 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 13:49:00,552 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 13:49:00,552 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 13:49:00,552 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 13:49:00,552 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 13:49:00,552 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:49:00,553 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 ~a20~0)) [2020-07-21 13:49:00,553 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 13:49:00,553 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:49:00,553 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)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (and (<= ~a8~0 |old(~a8~0)|) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0) (= 1 ~a20~0) (<= ~a7~0 |old(~a7~0)|)) (not (<= 5 |old(~a16~0)|))) [2020-07-21 13:49:00,553 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 13:49:00,554 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse1 (<= ~a7~0 0)) (.cse0 (<= ~a8~0 13)) (.cse2 (<= ~a16~0 5)) (.cse3 (= 1 ~a20~0))) (or (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and .cse0 (<= ~a16~0 4)) (<= ~a17~0 0) (not (<= |old(~a7~0)| 0)) (<= 15 ~a8~0) (and .cse1 .cse2) (not (<= |old(~a16~0)| 5)) (not (<= 5 |old(~a16~0)|)) (and .cse0 .cse1 .cse3) (and .cse0 .cse2 .cse3))) [2020-07-21 13:49:00,554 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 13:49:00,554 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 13:49:00,554 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse1 (<= ~a7~0 0)) (.cse0 (<= ~a8~0 13)) (.cse2 (<= ~a16~0 5)) (.cse3 (= 1 ~a20~0))) (or (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and .cse0 (<= ~a16~0 4)) (<= ~a17~0 0) (not (<= |old(~a7~0)| 0)) (<= 15 ~a8~0) (and .cse1 .cse2) (not (<= |old(~a16~0)| 5)) (not (<= 5 |old(~a16~0)|)) (and .cse0 .cse1 .cse3) (and .cse0 .cse2 .cse3))) [2020-07-21 13:49:00,554 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 13:49:00,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:49:00 BoogieIcfgContainer [2020-07-21 13:49:00,576 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 13:49:00,578 INFO L168 Benchmark]: Toolchain (without parser) took 17420.34 ms. Allocated memory was 135.8 MB in the beginning and 458.2 MB in the end (delta: 322.4 MB). Free memory was 98.5 MB in the beginning and 88.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 356.4 MB. Max. memory is 7.1 GB. [2020-07-21 13:49:00,579 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 135.8 MB. Free memory was 118.9 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 13:49:00,580 INFO L168 Benchmark]: CACSL2BoogieTranslator took 727.18 ms. Allocated memory was 135.8 MB in the beginning and 201.9 MB in the end (delta: 66.1 MB). Free memory was 98.1 MB in the beginning and 167.3 MB in the end (delta: -69.2 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. [2020-07-21 13:49:00,581 INFO L168 Benchmark]: Boogie Preprocessor took 110.28 ms. Allocated memory is still 201.9 MB. Free memory was 167.3 MB in the beginning and 162.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2020-07-21 13:49:00,581 INFO L168 Benchmark]: RCFGBuilder took 1343.18 ms. Allocated memory was 201.9 MB in the beginning and 230.2 MB in the end (delta: 28.3 MB). Free memory was 162.1 MB in the beginning and 177.2 MB in the end (delta: -15.1 MB). Peak memory consumption was 86.6 MB. Max. memory is 7.1 GB. [2020-07-21 13:49:00,583 INFO L168 Benchmark]: TraceAbstraction took 15233.51 ms. Allocated memory was 230.2 MB in the beginning and 458.2 MB in the end (delta: 228.1 MB). Free memory was 177.2 MB in the beginning and 88.6 MB in the end (delta: 88.5 MB). Peak memory consumption was 340.7 MB. Max. memory is 7.1 GB. [2020-07-21 13:49:00,586 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 135.8 MB. Free memory was 118.9 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 727.18 ms. Allocated memory was 135.8 MB in the beginning and 201.9 MB in the end (delta: 66.1 MB). Free memory was 98.1 MB in the beginning and 167.3 MB in the end (delta: -69.2 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.28 ms. Allocated memory is still 201.9 MB. Free memory was 167.3 MB in the beginning and 162.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1343.18 ms. Allocated memory was 201.9 MB in the beginning and 230.2 MB in the end (delta: 28.3 MB). Free memory was 162.1 MB in the beginning and 177.2 MB in the end (delta: -15.1 MB). Peak memory consumption was 86.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15233.51 ms. Allocated memory was 230.2 MB in the beginning and 458.2 MB in the end (delta: 228.1 MB). Free memory was 177.2 MB in the beginning and 88.6 MB in the end (delta: 88.5 MB). Peak memory consumption was 340.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 560]: 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: (((((((((!(1 == \old(a20)) || !(15 <= \old(a8))) || (a8 <= 13 && a16 <= 4)) || a17 <= 0) || !(\old(a7) <= 0)) || 15 <= a8) || (a7 <= 0 && a16 <= 5)) || !(\old(a16) <= 5)) || !(5 <= \old(a16))) || ((a8 <= 13 && a7 <= 0) && 1 == a20)) || ((a8 <= 13 && a16 <= 5) && 1 == a20) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.7s, OverallIterations: 8, TraceHistogramMax: 3, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 450 SDtfs, 1906 SDslu, 265 SDs, 0 SdLazy, 5416 SolverSat, 862 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1781 GetRequests, 1746 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2784occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 8 MinimizatonAttempts, 2043 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 114 PreInvPairs, 176 NumberOfFragments, 430 HoareAnnotationTreeSize, 114 FomulaSimplifications, 21297 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3395 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1379 NumberOfCodeBlocks, 1379 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1759 ConstructedInterpolants, 0 QuantifiedInterpolants, 666907 SizeOfPredicates, 11 NumberOfNonLiveVariables, 3472 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 452/460 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...